Provided is a discharge detection unit 1 capable of detecting noise superimposed on a voltage or a current of an electric path to which a load is connected, by being electrically connected to the electric path to which the load is connected, the discharge detection unit 1 being provided with a filter part 11 capable of outputting a waveform of noise in a passed high-frequency band without passing noise in a commercial-frequency and a low-frequency band by cutting noise of a predetermined frequency or lower that is superimposed on the voltage or current of the electric path, a count part 12 capable of calculating the number of detections of a waveform in a predetermined time from the waveform passing through the filter part, and an arithmetic processing part 13 capable of determining the presence or absence of noise caused by discharge in the electric path by using the number of detections calculated by the count part.
A discharge detector including at least one filter section electrically connected between two phases out of an R phase, an S phase, and a T phase of a power circuit of a three-phase alternating current and configured to extract a noise from the alternating current power source; an amplification section configured to amplify an output of the filter section; a smoothing section configured to smooth an output of the amplification section; a phase angle setting section configured to set a starting point of noise measurement for each connection between the R phase-the S phase, between the S phase-the T phase, and between the T phase-the R phase; a phase division section configured to define a plurality of domains by dividing one cycle of a voltage waveform or a current waveform of each connection between the R phase-the S phase, between the S phase-the T phase, and between the T phase-the R phase based on the starting point of noise measurement; and a determination section configured to detect a noise included in an output of the smoothing section, configured to specify at least one domain coincident with a timing of detecting the noise out of the plurality of domains defined by the phase division section, and configured to specify which connection between the R phase-the S phase, between the S phase-the T phase, or between the T phase-the R phase is a source of the noise.
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
An arcing detection system that detects an output of noise superimposed on a voltage or a current of an electric circuit to which a load is connected, including a filter unit that extracts an output waveform in a high frequency band, and a phase division unit that determines a peak time domain including domains before and after a peak at a commercial frequency related to the output waveform extracted by the filter unit and a 0 value time domain before and after an output at the commercial frequency becomes a 0 value to distinguish between the peak time domain and the 0 value time domain. A determination unit determines an arcing event when an output in the peak time domain or a calculation value of the output in the peak time domain and an output in a 0 value time domain exceeds a threshold.
An electrical discharge detection system that detects an output of noise superimposed on a voltage or a current of an electric circuit to which a load is connected includes a filter unit capable of extracting an output waveform in a specific frequency band, a division unit capable of dividing a certain time into a plurality of domains, and a determination unit capable of confirming a degree of continuity of domains in which an output of noise has been confirmed or comparing outputs of noise of a domain group in which a plurality of domains is collected.
A discharge detection system includes: a main breaker 10; a plurality of branch breakers 20; a plurality of discharge detection units 30; and at least one current limiting resistor 33, wherein each of the branch breakers 20 is configured to interrupt a circuit based on a difference in a current value between a current I1 flowing in a first electrode and a current I2 flowing in a second electrode, each of the discharge detection units 30 is provided with a discharge detection section 31 and a switch 32, the discharge detection section 31 being configured to detect a noise superimposed on a voltage or current, and the switch 32 being electrically connected to the first electrode of the corresponding branch breaker 20, the switch 32 of each discharge detection unit 30 has a secondary side electrically connected to common wirings 83, 81, the wiring 81 is electrically connected to an electrode different from the electrode electrically connected to the first electrode of the branch breaker 20 out of the electrodes of the main breaker 10, and the current limiting resistor 33 passes a current IE as part of the current I1 through the wirings 83, 81 when the switch 32 is in a closed state.
G01R 31/327 - Testing of circuit interrupters, switches or circuit-breakers
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
6.
Plug-Type Electric Discharge Detection Unit and Electric Discharge Detection System
A plug-in discharge detection unit includes two plugs of a cathode and an anode configured to allow insertion into respective two plug insertion holes of a plug socket. A discharge detection section configured to allow detection of a noise of discharge superimposed on a voltage or current, and an arithmetic section configured to allow determination of whether discharge has occurred based on the noise. The detection unit further includes a ground terminal electrically connected to a ground; at least one first switch electrically connected to a secondary side of the respective plug; and a current limiting resistor electrically connected to a secondary side of the first switch. The current limiting resistor has a secondary side electrically connected to the ground terminal, and the arithmetic section changes, if determining that discharge has occurred, the first switch from an open state to a closed state to pass an artificial leakage current with a current value in accordance with a resistance value of the current limiting resistor through the ground terminal.
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
H02H 1/00 - Details of emergency protective circuit arrangements
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
A discharge detection system of the present invention includes a plurality of filter circuits electrically connected to each of a plurality of electrical circuits and configured to pass a noise; a plurality of amplifiers electrically connected to each of the plurality of filter circuits and configured to amplify a level of the noise passed through the filter circuit; and a processor electrically connected to each of the plurality of amplifiers and configured to detect occurrence of discharge based on the noise level amplified by the amplifier. The processor is set to have an amplification factor of the amplifier and a threshold related to the noise level. If a noise at a level of the threshold or more is output from each of two or more of the amplifiers, the processor executes a process of reducing the amplification factor of each of the two or more amplifiers, and a process of specifying any one of the noises by comparing the level of the noise output from each of the two or more amplifiers having the reduced amplification factor.
H02H 3/46 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to frequency deviations
G01R 29/26 - Measuring noise figureMeasuring signal-to-noise ratio
Provided is a discharge detector for detecting discharge occurred in a circuit with an electrically connected load based on a noise in a high frequency band superimposed on an alternating current power source supplied to the circuit. The discharge detector includes a high pass filter configured to extract a frequency component in a high frequency band from the alternating current power source; an amplifier configured to amplify an output of the high pass filter; a smoothing section configured to smooth an output of the amplifier; a phase division section configured to specify a peak time domain including time before and after a peak value and a zero cross time domain including time before and after a 0 value based on a value in one cycle of a voltage or current of the alternating current power source; and a determination section configured to determine whether discharge has occurred based on a difference between a first output of the smoothing section in the peak time domain and a second output of the smoothing section in the zero cross time domain.
Provided is a discharge detection system which includes a master unit and a slave unit. The master unit and the slave unit are provided with a noise detection section for detecting the noise superimposed on a voltage or current and a determination section for determining whether discharge has occurred based on an output of the noise detection section. The master unit is electrically connected to a secondary side of a main breaker and primary sides of a plurality of branch breakers, the main breaker and the branch breakers configuring a distribution board, and the slave unit is electrically connected to an electrical outlet installed in the building. If determining that discharge has occurred, the master unit outputs a first signal and the first signal is input to at least one of the main breaker and the branch breakers, and if determining that discharge has occurred, the slave unit outputs a second signal and the second signal is input to at least one of the master unit, the main breaker, and the branch breakers.
H02H 7/22 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systemsEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for switching devices
This arcing detection system detects output of noise superimposed on voltage or current in an electric network to which a load 8 is connected, the system comprising: a filter unit 11 that extracts an output waveform in a high-frequency band; a phase-splitter 14 that determines, so as to distinguish between, a peak time zone that contains a zone around a peak at a commercial frequency related to the output waveform extracted in the filter section, and a zero-value time zone around where the output at the commercial frequency becomes zero; an assessment unit 15 that assesses an instance to be an arcing event when an output in the peak time zone, or a computational value of an output in the peak time zone and an output in the zero-value time zone, exceeds a threshold value; and a threshold-modifying unit 16 that modifies the threshold value depending on the presence or absence of output in the zero-value time zone.
G01R 31/12 - Testing dielectric strength or breakdown voltage
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
Provided is an electrical discharge detection system for detecting output of noise superimposed on voltage or current in an electrical circuit to which a load is connected, the electrical discharge detection system having a configuration comprising: a filter unit capable of extracting an output waveform in a specific frequency band; a division unit capable of dividing a certain period of time into a plurality of segments; and a determination unit capable of determining the degree of continuity of segments where output of noise has been confirmed, or of comparing output of noise between segment groups, each of which is a collection of a plurality of segments.
G01R 31/12 - Testing dielectric strength or breakdown voltage
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
12.
Discharge detector with learning mode for resetting settings to detecting occurrence of discharge
The discharge detector of the present invention includes a filter circuit configured to pass a noise superimposed on the current or voltage in a predetermined frequency range; an amplifier configured to amplify a level of the noise passed through the filter circuit; and a processor configured to detect occurrence of discharge based on the noise level amplified by the amplifier. The processor is set to have a threshold related to the noise level and a determination time to determine whether discharge has occurred. The processor is capable of selectively executing either one of a discharge detection mode or a learning mode. The processor in the learning mode executes the process of sampling the noise at the level of the threshold or more and resetting the value of the setting of the determination time based on a result of the sampling.
A bus bar unit according to the present invention comprises a pair of bar holders 31. Inside the bar holders 31, a plurality of horizontal grooves 31 are aligned in the vertical direction at intervals. The grooves 31 have a vertical width corresponding to the thickness of a bus bar 30. Outside the bar holders 31, an opening part 312 leading to the grooves 31 and a plurality of horizontal protection parts 313 located at positions corresponding to the grooves 31 in the opening part 312 are provided. The protection parts 313 have a vertical width corresponding to the thickness of the bus bar 30. A side part extending in the longitudinal direction of the bus bar 30 is inserted into the grooves 31, whereby an end surface of the side part of the bus bar 30 faces the protection parts 313, and a front surface and a rear surface of the side part of the bus bar 30 are exposed inside the opening part 312.
A discharge detection device 1 according to the present invention comprises: at least one filter unit 21 which is electrically connected between two phases among an R phase, an S phase, and a T phase of a three-phase AC power supply circuit, and extracts noise from the power supply circuit; an amplification unit 22 which amplifies the output of the filter unit 21; a smoothing unit 25 which smooths the output of the amplification unit 22; a phase angle setting unit 23 which sets each noise measurement starting point between the R phase and S phase, between the S phase and T phase, and between the T phase and R phase; a phase division unit 24 which defines, on the basis of the noise measurement start points, a plurality of areas that divide one period of each of voltage waveforms or current waveforms between the R phase and S phase, between the S phase and S phase, and between the T phase and R phase; and a determination unit 26 which detects noise included in the output of the smoothing unit 25, identifies at least one area which matches a detection timing of the noise among the plurality of areas defined by the phase division unit 24, and identifies which one of between the R phase and S phase, between the S phase and T phase, and between the T phase and R phase is a noise generation source.
A plug-type electric discharge detection unit 1 equipped with two plugs 12, which consist of a positive and a negative electrode plug and are configured so as to be insertable into the two plug insertion holes 81 of a plug socket 8, an electric discharge detection unit 20 configured so as to be capable of detecting the noise of discharge which is superimposed on the current or voltage, and a computing unit 30 configured so as to be capable of determining whether or not the discharge has occurred on the basis of said noise, said detection unit 1 being further equipped with a ground terminal 13 which is electrically connected to a ground, one or more first switches 14 which are electrically connected to the secondary sides of each of the plugs 12, and a current-limiting resistor 16 which is electrically connected to the secondary side of the first switches 14, wherein the secondary side of the current-limiting resistor 16 is electrically connected to the ground terminal 13, and the computing unit 30 causes a pseudo-electricity leak, which has a current value corresponding to the resistance value of the current-limiting resistor 16, to flow to the ground terminal 13 by switching the first switches 14 from the open state to the closed state when it has been determined that electric discharge has occurred.
H02H 3/02 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
G01R 31/12 - Testing dielectric strength or breakdown voltage
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
A discharge detection system of the present invention includes a current detection section configured to detect a value of current flowing in a circuit; a high pass filter configured to detect noise in a high frequency band superimposed on the circuit by a discharge phenomenon; and a determination section electrically connected to the current detection section and the high pass filter. The determination section executes steps including determining whether the discharge phenomenon has occurred based on the noise in the high frequency band detected by the high pass filter, when the discharge phenomenon is determined to have occurred, calculating an increase or decrease in the current value at the occurrence of the discharge phenomenon based on the current value detected by the current detection section, and specifying information on the discharge phenomenon based on the increase or decrease in the current value.
A discharge detection device of the present invention is configured to be capable of detecting a discharge phenomenon via wiring, including: a noise detection section electrically connected to the wiring and configured to allow a noise component generated by the discharge phenomenon to be input via the wiring and configured to output the noise component if the noise component has a predetermined frequency or more; and an arithmetic section configured to determine whether a level of the noise component is high by comparing the level of the noise component with a threshold. The arithmetic section counts the number of occurrence of the discharge phenomenon if the level of the noise component is determined to be high, and performs a control process selected based on the number of occurrence of the discharge phenomenon.
An electrical discharge detection system according to the present invention includes a parent machine 40 and a child machine 60. The parent machine 40 and the child machine 60 each comprise a noise detection unit 41, 61 that detects noise superimposed on a voltage or a current, and a determination unit 42, 62 that determines whether an electrical discharge has occurred, on the basis of the output of the noise detection unit 41, 61. The parent machine 40 is electrically connected to a secondary side of a main breaker 81 constituting a distribution board 8, and to primary sides of a plurality of branch breakers 82 constituting the same. The child machine 40 is electrically connected to an electrical outlet 91 that is provided in a building. The parent machine 40 outputs a first signal upon determining that an electrical discharge has occurred, and the first signal is inputted to at least one of the main breaker 81 and a branch breaker 82. The child machine 60 outputs a second signal upon determining that an electrical discharge has occurred, and the second signal is inputted to at least one of the parent machine 40, the main breaker 81, and a branch breaker 82.
This discharge detection device 1 according to the present invention is for detecting occurrence of discharge in a circuit on the basis of noise that is in a high-frequency band and that is superimposed on an AC power supply supplied to a load to which a circuit is electrically connected. The discharge detection device 1 is provided with: a high-pass filter 11 that extracts a frequency component in a high-frequency band from an AC power supply 91; an amplifier 12 that amplifies output of the high-pass filter 11; a smoothing part 13 that smoothes output of the amplifier 12; a phase division unit 14 configured to identify, on the basis of a value of one cycle of voltage or current of the AC power supply 91, a peak time domain including times before and after a peak value and a zero cross time domain including times before and after 0 value; and a determination unit 15 that determines whether or not discharge has occurred, on the basis of a difference between a first output of the smoothing part 13 in the peak time domain and a second output of the smoothing part 13 in the zero cross time domain.
This electrical discharge detection system includes multiple filter circuits 32 which are electrically connected to electric circuits and which pass noise, multiple amplifiers 31 which are electrically connected to the filter circuits 32 and which amplify the level of the noise passed through the filter circuits 32, and a processor 50 which is electrically connected to the amplifiers 31 and which detects the occurrence of electrical discharge on the basis of the level of the noise amplified by the amplifiers 31, wherein threshold values for the amplification ratio of the amplifiers 31 and the noise level are configured in the processor 50 and, if noise of a level greater than or equal to the threshold value is outputted from two or more of the amplifiers 31, then the processor 50 performs processing that reduces the amplification ratio of each of the two or more amplifiers 31 and processing that specifies one noise by comparing the levels of the noise outputted from each of the two or more amplifiers 31 the amplification ratio of which has been decreased.
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
H02H 3/50 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to the appearance of abnormal wave forms, e.g. AC in DC installations
A discharge detection device 1 according to the present invention comprises: a filter circuit 11 for causing noise superimposed on a current or a voltage to pass through the filter circuit 11; an amplifier 12 for amplifying the level of the noise that has passed through the filter circuit 11; and a processor 10 for detecting the occurrence of a discharge on the basis of the level of the noise amplified by the amplifier 12. In the processor 10, a threshold value relating to the level of the noise and a determination time period for determining whether or not a discharge has been generated are set. The processor 10 can selectively execute any one of a discharge detection mode and a learning mode. In the learning mode, the processor 10 executes processing for sampling the noise at a level equal to or higher than a threshold value and resetting the set value of the determination time period on the basis of results of the sampling.
H02H 3/50 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to the appearance of abnormal wave forms, e.g. AC in DC installations
G01R 31/12 - Testing dielectric strength or breakdown voltage
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Distribution boards [electricity]; panel boards
[electricity]; high-voltage power receiving equipment;
control panels [electricity]; terminal panels [electricity];
switchboards [electricity]; panels for monitoring load
current; monitoring panels for photovoltaic power generation
devices; distribution frames [telecommunication]; alarm
panels for warning the abnormality of electric facilities;
off-grid power supply apparatus and instruments; power
supply apparatus and instruments having solar panels and
storage batteries; circuit breakers [electricity]; switches
[electricity]; disconnectors [electricity]; terminal blocks
[electricity]; auto-reset devices for circuit breakers
[electricity]; enclosures and racks for electrical
distribution boards; enclosures and racks for electrical
panel boards; enclosures and racks for high-voltage power
receiving equipment; enclosures and racks for electrical
control panels; enclosures and racks for electric
switchboards; enclosures and racks for charging apparatus
for electric vehicles and hybrid vehicles; enclosures and
racks for monitoring apparatus; enclosures and racks for
telecommunication machines and apparatus; enclosures and
racks for electronic equipment for LAN system; enclosures
and racks for broadcasting machines and apparatus;
enclosures and racks for television apparatus; enclosures
and racks for telephone system apparatus; enclosures and
racks for computers; enclosures and racks for server
computers; enclosures and racks for electronic display
apparatus for advertisement; enclosures and racks for
storage batteries; enclosures and racks for measuring or
testing machines and instruments; enclosures and racks for
power distribution or control machines and apparatus;
enclosures and racks for electric or magnetic meters and
testers; enclosures and racks for electronic machines and
apparatus; branch boxes [electricity]; boxes for wattmeters;
junction boxes [electricity]; optical junction boxes;
junction boxes for optical fibers; junction boxes for
photovoltaic power generation systems; electric current
collecting boxes for photovoltaic power generation systems;
enclosures for electronic circuit boards; power distribution
boxes; charging apparatus for electric vehicles and hybrid
vehicles; computer programs used for choosing enclosures and
racks for telecommunication machines and apparatus; computer
programs used for choosing enclosures and racks for power
distribution or control machines and apparatus; computer
programs used for choosing cooling apparatus for enclosures
and racks for telecommunication machines and apparatus;
computer programs used for choosing cooling apparatus for
enclosures and racks for power distribution or control
machines and apparatus; computer programs used for creating
drawings for enclosures and racks for telecommunication
machines and apparatus; computer programs used for creating
drawings for enclosures and racks for power distribution or
control machines and apparatus; computer programs; measuring
apparatus for measuring electric current, voltage, electric
power, temperature, or humidity; control apparatus for
controlling electric current, voltage, electric power,
temperature, or humidity; monitoring apparatus for
monitoring electric current, voltage, electric power,
temperature, or humidity; warning apparatus for warning the
abnormality of electric current, voltage, electric power,
temperature, or humidity; remote surveillance apparatus for
power distribution or control machines and apparatus;
seismic detectors; measuring or testing machines and
instruments; electric or magnetic meters and testers; fire
alarms; gas alarms; anti-theft warning apparatus; electronic
display apparatus for advertisement; telecommunication
machines and apparatus; power distribution or control
machines and apparatus; electronic machines, apparatus and
their parts; electrical outlets; outlets for communications;
electric cables; telecommunication cables; optical cables;
connectors for electric cables; connectors for
telecommunication cables; connectors for optical cables;
electric wires and cables; ducting for electric cables;
accumulators [batteries]; electrical cells and batteries;
electromagnetic shielding parts for power distribution or
control machines and apparatus; electromagnetic shielding
parts for telecommunication machines and apparatus;
electromagnetic shielding parts for electronic machines and
apparatus; arc fault detection devices; arc fault analyzers. Heat exchangers not being parts of machines; air cooling
apparatus; heating and cooling apparatus; freezing machines
and apparatus; air conditioning apparatus; peltier cooling
apparatus for industrial purposes; electric heating
apparatus; household electrothermic appliances;
dehumidifiers; ventilation apparatus; ventilating fans; fans
for ventilation; louvers for ventilation apparatus; louvers
for ventilating fans; filters for ventilation apparatus;
filters for ventilating fans; filters for air conditioning
apparatus; ventilation hoods; hoods for ventilating fans;
ventilating fans for raised floor; air conditioning
apparatus for supplying conditioned air to enclosures and
racks for electric apparatus, and panel units comprising
ceilings, walls and doors and being accessories of air
conditioning apparatus for shutting off cold air and exhaust
heat; electric lamps and other lighting apparatus.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Enclosures and racks for electrical distribution boards; enclosures and racks for electrical panel boards; enclosures and racks for electrical control panels; enclosures and racks for electric switchboards; enclosures and racks for housing monitoring apparatus that monitors the state of electrical devices and equipment housed in the same or neighboring enclosures and racks or attached to the outer surface of the enclosures and racks, the said devices or equipment being telecommunication machines and apparatus, electronic equipment for LAN systems, broadcasting machines and apparatus, television apparatus, telephone system apparatus, computers, server computers, measuring machines and instruments, testing machines and instruments, power distribution or control machines and apparatus, electric or magnetic meters and testers, circuit breakers, switches, terminal blocks, charging apparatus for electric vehicles and hybrid vehicles, electronic display apparatus for advertisement, accumulators, batteries, electrical cells and batteries, electronic machines, apparatus and their parts, wattmeters, seismic detectors, fire alarms, gas alarms, anti-theft warning apparatus, electrical outlets, electric cables, telecommunication cables, electromagnetic shielding parts, arc fault detection devices, arc fault analyzers, disconnectors, auto-reset devices for circuit breakers, outlets for communications, optical cables, connectors for electric cables, connectors for telecommunication cables, connectors for optical cables, electric wires and cables, or ducting for electric cables; enclosures and racks for housing monitoring apparatus that monitors electrical data, namely, electrical current, voltage, electrical power, or abnormal signals, of electrical devices and equipment housed in the same or neighboring enclosures and racks or attached to the outer surface of the enclosures and racks, the said devices or equipment being telecommunication machines and apparatus, electronic equipment for LAN systems, broadcasting machines and apparatus, television apparatus, telephone system apparatus, computers, server computers, measuring machines and instruments, testing machines and instruments, power distribution or control machines and apparatus, electric or magnetic meters and testers, circuit breakers, switches, terminal blocks, charging apparatus for electric vehicles and hybrid vehicles, electronic display apparatus for advertisement, accumulators, batteries, electrical cells and batteries, electronic machines, apparatus and their parts, wattmeters, seismic detectors, fire alarms, gas alarms, anti-theft warning apparatus, electrical outlets, electric cables, telecommunication cables, electromagnetic shielding parts, arc fault detection devices, arc fault analyzers, disconnectors, auto-reset devices for circuit breakers, outlets for communications, optical cables, connectors for electric cables, connectors for telecommunication cables, connectors for optical cables, electric wires and cables, or ducting for electric cables; enclosures and racks for housing monitoring apparatus that monitors environmental information in or outside of the enclosures and racks, the monitoring apparatus being electrical temperature monitor, electrical humidity monitor, electrical illuminance monitor, electrical air pressure monitor, electrical noise monitor, or electrical acceleration monitor; enclosures and racks for housing monitoring apparatus providing electronic alerts when doors of the enclosures and racks are open or closed, or locked or unlocked, and when the said enclosures or racks are being approached or breached by humans or animals; enclosures and racks for telecommunication machines and apparatus; enclosures and racks for electronic equipment for LAN system; enclosures and racks for broadcasting machines and apparatus; enclosures and racks for television apparatus; enclosures and racks for telephone system apparatus; enclosures and racks for computers; enclosures and racks for server computers; enclosures and racks for measuring or testing machines and instruments; enclosures and racks for power distribution or control machines and apparatus; enclosures and racks for electric or magnetic meters and testers; branch boxes, namely, electrical branch boxes; junction boxes Ventilating exhaust fans; ventilating intake fans; ventilating fans for industrial purposes; ventilating fans for household use; louvers for ventilation apparatus; louvers for ventilating fans; filters for ventilation apparatus; filters for ventilating fans for industrial purposes; filters for ventilating fans for household purposes; filters for air conditioning apparatus; ventilation hoods; hoods for ventilating fans attached to enclosure and racks for power distribution; hoods for ventilating fans attached to enclosure and racks for control machines and apparatus
An electrical discharge detection system according to the present invention is provided with: a current detection unit for detecting the value of a current flowing through a circuit; a high-pass filter for detecting high-frequency-band noise superposed on the circuit by an electrical discharge phenomenon; and a determination unit electrically connected to the current detection unit and the high-pass filter. The determination unit performs processing including: determining whether or not the electrical discharge phenomenon has occurred on the basis of the high-frequency-band noise detected by the high-pass filter; calculating, when it is determined that the electrical discharge phenomenon has occurred, the increase or decrease of the current value when the electrical discharge phenomenon has occurred on the basis of the current value detected by the current detection unit; and identifying information related to the electrical discharge phenomenon on the basis of the increase or decrease of the current value.
This discharge detection device is configured so as to be capable of detecting a discharge phenomenon via wiring, the device comprising: a noise detection unit that is electrically connected to the wiring, that receives, via the wiring, input of a noise component which has been generated due to the discharge phenomenon, and that outputs the noise component which is at least a prescribed frequency; and a computation unit that compares the level of the noise component to a threshold value and determines whether the level of the noise component is high. The computation unit, if having determined that the level of the noise component is high, counts the frequency of occurrence of the discharge phenomenon and executes different control processing on the basis of the frequency of occurrence of the discharge phenomenon.
The present invention is a distribution board 20: that includes a main breaker 21, a bus, and a plurality of branch breakers 22, with each of the plurality of branch breakers 22 being electrically connected to a secondary side of the main breaker 21 via the bus; and that is further provided with a PLC modem 23 electrically connected to the primary side of the main breaker 21, the PLC modem 23 receiving a signal via one of the plurality of branch breakers 22, amplifying the signal, and transmitting the amplified signal.
The present invention provides a distribution board having a main breaker and a plurality of branch breakers, the distribution board being wired to branch power supplied to the main breaker into each branch breaker, the distribution board including: a plurality of noise detection sections configured to correspond to the respective branch breakers one-to-one and each configured to output a detection signal based on a noise component of not less than a predetermined frequency generated on a secondary side of each branch breaker; and processor configured to separately receive the detection signal output from each noise detection section and determine whether the detection signal is high frequency noise at a threshold or more.
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
G01R 31/327 - Testing of circuit interrupters, switches or circuit-breakers
G01R 23/15 - Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements
The present invention provides a distribution board (1) which is provided with a master breaker (11) and a plurality of branch breakers (12), and which is wired in such a way that electric power supplied to the master breaker branches to each branch breaker, wherein the distribution board is additionally provided with a plurality of noise detecting units (20) which correspond on a one-to-one basis to the branch breakers, and each of which outputs a detected signal on the basis of a noise component having a frequency at least equal to a prescribed frequency, generated on a secondary side of the corresponding branch breaker, and one processor (33) which individually receives the detected signals output from each noise detecting unit and determines whether the detected signal is high-frequency noise equal to or greater than a threshold.
This water-cooled heat exchanger 1 is provided with: a radiator 12 which is arranged within a case 11; a piping part 13 which introduces cooling water for cooling the radiator; and a solenoid valve 14 which is connected to the piping part 13 outside the case 11.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
electrical power distribution boards; electrical power panel boards; high-voltage power receiving equipment; electric control panels; circuit breakers; electric switches; electrical terminal blocks; housings and mounting racks for electrical power distribution boards; housings and mounting racks for electrical power panel boards; housings and mounting racks for high-voltage power receiving equipment; housings and mounting racks for electric control panels; charging appliance for electric vehicles; housings and mounting racks for charging appliance for electric vehicles; electronic control device and remote surveillance device for use in measuring, controlling and monitoring electric power, voltage, electric current and temperature; housings and mounting racks for electric monitoring panels; housings and mounting racks for broadcasting equipment; housings and mounting racks for electronic equipment for LAN system; housings and mounting racks for telecommunications transmitters; housings and mounting racks for television broadcasting apparatus; housings and mounting racks for telephone apparatus; housings and mounting racks for electronic machines and apparatus, namely, computers; housings and mounting racks for electronic machines and apparatus, namely, computer servers; downloadable computer programs for selecting housings and mounting racks for broadcasting equipment, telecommunication devices and apparatus for LAN system; downloadable computer programs for selecting electrical power panel boards; downloadable computer programs for selecting cooling apparatus used in conjunction with housings and mounting racks for telecommunication devices and apparatus; downloadable computer programs for selecting cooling apparatus for electrical power distribution boards and electric control panels; electronic advertisement and messaging display unit with multi-networking (TCP/IP) capabilities, remote connectivity and data regeneration capabilities from internal memory; housings and mounting racks for electronic advertisement and messaging display units; housings for electronic circuits; housings and mounting racks for measuring and testing apparatus and instruments, namely, devices for use in measuring and testing electric current, voltage, electric power and abnormal signals of both electric installations and industrial and commercial plant manufacturing machines; boxes for wattmeters; device for measuring electric power, voltage and electric current of both electric installations and industrial and commercial plant manufacturing machines; electronic alarm panels for warning of abnormalities in electric systems; ducting for electric cables; junction boxes; junction boxes for optical fibers; electric wires and cables; control panels in the nature of panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat; and housings and mounting racks for telecommunication devices and apparatus, namely, housings and mounting racks for wireless transmitters and receivers heat exchangers not being parts of machines; cooling units for industrial purposes; air conditioning apparatus for industrial purposes; peltier cooling apparatus; heating units for industrial purposes; industrial dehumidifiers; air conditioning apparatus for supplying cooled air to housings and racks for electric apparatus; and panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat sold as part of air conditioning apparatus; panel units for air conditioning apparatus that controls the flow of cold air and exhaust heat being structural parts for conditioning apparatus; ventilating exhaust fans; ventilating fans for commercial or industrial use; ventilating louvers; air conditioning fans for raised floor
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Distribution boards (electricity); Panel boards (electricity); High-voltage power receiving equipment; Control panels (electricity); Terminal panels (electricity); Switchboards (electricity); Circuit breakers (electricity); Switches (electricity); Disconnectors (electricity); Terminal blocks (electricity); Enclosures and racks for electrical distribution boards; Enclosures and racks for electrical panel boards; Enclosures and racks for high-voltage power receiving equipment; Enclosures and racks for electric control panels; Branch boxes (electricity); Enclosures and racks for electric switchboards; Control apparatus and remote surveillance apparatus for measuring, controlling and monitoring electric power, voltage, electric current and temperature; Panels for monitoring load current; Charging apparatus for electric and hybrid vehicles; Enclosures and racks for charging apparatus for electric and hybrid vehicles; Enclosures and racks for monitoring apparatus; Electric outlets; Power distribution or control machines and apparatus; Enclosures and racks for telecommunication devices and apparatus; Enclosures and racks for electronic equipment for LAN system; Enclosures and racks for transmitters used for broadcasting; Enclosures and racks for television apparatus and TV broadcast apparatus; Enclosures and racks for telephone apparatus; Wiring boards (telecommunication); Telephone apparatus; Electrical outlets for communications; Electric installations for the remote control of industrial operations; Telecommunication devices and apparatus; Enclosures and racks for computers; Enclosures and racks for server computers; Electronic display apparatus for advertisement; enclosures and racks for electronic display apparatus for advertisement; enclosures for electronic circuits; enclosures and racks for measuring or testing machines and instruments; boxes for wattmeters; Measuring instrument and apparatus for electric power, voltage, and electric current; Alarm panels for electric facilities; Ducting for electric cables; Cable racks; Junction boxes for sending electricity from solar battery (electricity); Junction boxes for optical fibers; Telecommunication cables; Optical cables; Junction boxes; Power distribution boxes; Electric wires and cables; Batteries, electric; Batteries and cells. Heat exchangers; Air cooling apparatus; Air conditioning-apparatus; Peltier cooling apparatus; Electric heating apparatus; Dehumidifiers; Ventilating exhaust fans; Ventilating fans for commercial or industrial use; Ventilating louvers; Electric lamps and other lighting apparatus.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Distribution boards (electricity); panel boards
(electricity); high-voltage power receiving equipment;
control panels (electricity); terminal panels (electricity);
switchboards (electricity); circuit breakers (electricity);
switches (electricity); disconnectors (electricity);
terminal blocks (electricity); enclosures and racks for
electrical distribution boards; enclosures and racks for
electrical panel boards; enclosures and racks for
high-voltage power receiving equipment; enclosures and racks
for electric control panels; branch boxes (electricity);
enclosures and racks for electric switchboards; control
apparatus and remote surveillance apparatus for measuring,
controlling and monitoring electric power, voltage, electric
current and temperature; panels for monitoring load current;
charging apparatus for electric and hybrid vehicles;
enclosures and racks for charging apparatus for electric and
hybrid vehicles; enclosures and racks for monitoring
apparatus; electric outlets; power distribution or control
machines and apparatus; enclosures and racks for
telecommunication devices and apparatus; enclosures and
racks for electronic equipment for LAN system; enclosures
and racks for transmitters used for broadcasting; enclosures
and racks for television apparatus and TV broadcast
apparatus; enclosures and racks for telephone apparatus;
wiring boards (telecommunication); telephone apparatus;
electrical outlet for communications; electric installations
for the remote control of industrial operations;
telecommunication devices and apparatus; enclosures and
racks for computers; enclosures and racks for server
computers; computer programs used for choosing enclosures
and racks for telecommunication devices and apparatus;
computer programs used for choosing electrical panel boards;
computer programs choosing cooling systems for enclosures
and racks for telecommunication devices and apparatus;
computer programs choosing cooling systems for electrical
distribution boards and electric control panels; electronic
display apparatus for advertisement; enclosures and racks
for electronic display apparatus for advertisement;
enclosures for electronic circuits; electronic machines and
apparatus; boxes for wattmeters; measuring instrument and
apparatus for electric power, voltage, and electric current;
electric or magnetic meters and testers; alarm panels for
electric facilities; fire alarms; gas alarms; anti-theft
warning apparatus; ducting for electric cables; junction
boxes for sending electricity from solar battery
(electricity); junction boxes for optical fibers;
telecommunication cables; optical cables; junction boxes;
power distribution boxes; electric wires and cables;
batteries, electric; batteries and cells. Heat exchangers not being parts of machines; air cooling
apparatus for industrial purposes; air
conditioning-apparatus for industrial purposes; peltier
cooling apparatus for industrial purposes; industrial
electric heating apparatus; industrial dehumidifiers; air
conditioning apparatus for supplying conditioned air to
enclosures and racks for electric apparatus; panel units
being accessories of air conditioning apparatus for shutting
off cold air and exhaust heat; ventilating exhaust fans;
ventilating fans for commercial or industrial use;
ventilating louvers; air conditioning fans for raised floor;
freezing machines and apparatus; household electrothermic
appliances; air cooling apparatus for household purposes;
air conditioning apparatus for household purposes; peltier
cooling apparatus for household purposes; electric heating
apparatus for household purposes; dehumidifiers for
household purposes; electric lamps and other lighting
apparatus.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Distribution boards (electricity); panel boards
(electricity); high-voltage power receiving equipment;
control panels (electricity); terminal panels (electricity);
switchboards (electricity); circuit breakers (electricity);
switches (electricity); disconnectors (electricity);
terminal blocks (electricity); enclosures and racks for
electrical distribution boards; enclosures and racks for
electrical panel boards; enclosures and racks for
high-voltage power receiving equipment; enclosures and racks
for electric control panels; branch boxes (electricity);
enclosures and racks for electric switchboards; control
apparatus and remote surveillance apparatus for measuring,
controlling and monitoring electric power, voltage, electric
current and temperature; panels for monitoring load current;
charging apparatus for electric and hybrid vehicles;
enclosures and racks for charging apparatus for electric and
hybrid vehicles; enclosures and racks for monitoring
apparatus; electric outlets; power distribution or control
machines and apparatus; enclosures and racks for
telecommunication devices and apparatus; enclosures and
racks for electronic equipment for LAN system; enclosures
and racks for transmitters used for broadcasting; enclosures
and racks for television apparatus and TV broadcast
apparatus; enclosures and racks for telephone apparatus;
wiring boards (telecommunication); telephone apparatus;
electrical outlet for communications; electric installations
for the remote control of industrial operations;
telecommunication devices and apparatus; enclosures and
racks for computers; enclosures and racks for server
computers; computer programs used for choosing enclosures
and racks for telecommunication devices and apparatus;
computer programs used for choosing electrical panel boards;
computer programs choosing cooling systems for enclosures
and racks for telecommunication devices and apparatus;
computer programs choosing cooling systems for electrical
distribution boards and electric control panels; electronic
display apparatus for advertisement; enclosures and racks
for electronic display apparatus for advertisement;
enclosures for electronic circuits; electronic machines and
apparatus; enclosures and racks for measuring or testing
machines and instruments; measuring or testing machines and
instruments; boxes for wattmeters; measuring instrument and
apparatus for electric power, voltage, and electric current;
electric or magnetic meters and testers; alarm panels for
electric facilities; fire alarms; gas alarms; anti-theft
warning apparatus; ducting for electric cables; junction
boxes for sending electricity from solar battery
(electricity); junction boxes for optical fibers;
telecommunication cables; optical cables; junction boxes;
power distribution boxes; electric wires and cables. Heat exchangers not being parts of machines; air cooling
apparatus for industrial purposes; air
conditioning-apparatus for industrial purposes; peltier
cooling apparatus for industrial purposes; industrial
electric heating apparatus; industrial dehumidifiers; air
conditioning apparatus for supplying conditioned air to
enclosures and racks for electric apparatus; panel units
being accessories of air conditioning apparatus for shutting
off cold air and exhaust heat; ventilating exhaust fans;
ventilating fans for commercial or industrial use;
ventilating louvers; air conditioning fans for raised floor;
freezing machines and apparatus; household electrothermic
appliances; air cooling apparatus for household purposes;
air conditioning apparatus for household purposes; peltier
cooling apparatus for household purposes; electric heating
apparatus for household purposes; dehumidifiers for
household purposes.
Provided is a rack aisle isolation structure whereby, in a server room with an aisle between racks being an isolated space, fire extinguishing gas may be guided into the isolated space and supplied efficiently into each rack through the isolated space without a circulation flow discharge aperture being formed in line with the floor face of the isolated space. This rack aisle isolation structure, wherein a space which is disposed between racks is an isolated space (6) by a ceiling isolation member (4) and an aisle isolation member (3), comprises aperture mechanisms which form aperture parts in the ceiling isolation member, the aisle isolation member or the rack for, upon receipt of an external signal, drawing fire extinguishing gas from discharge nozzles which are disposed externally to the isolation spaces.
A62C 3/00 - Fire prevention, containment or extinguishing specially adapted for particular objects or places
A62C 35/02 - Permanently-installed equipment with containers for delivering the extinguishing substance
F24F 3/00 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
A charging system comprises: at least one charging unit for supplying power for charging a battery mounted on a vehicle to the power receiving unit of the vehicle; a power supplying unit for supplying power supplied from the outside to the charging unit; a charging control unit for instructing the charging unit about a current instruction value based on a setting value of the power to be supplied by the charging unit; a current measuring unit for measuring the value of charging current actually flowing through the power receiving unit of the vehicle by the power supplied from the power supplying unit; and a determination unit for determining, based on the measurement result of the current measuring unit, whether the power receiving unit of the vehicle can follow a change of the current instruction value or not. Based on valid charging current characteristics fallen into a predetermined error range during a predetermined valid measurement period, the determination unit determines whether the power receiving unit of the vehicle can follow a change of the current instruction value or not.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
A vehicle charging system provided with a control unit (10) that controls the supply of power to a plurality of vehicle charging devices to which a respective plurality of vehicles are connected. Said vehicle charging system has the following: a connection detection unit that detects when a vehicle is connected; a charging stop unit that temporarily stops charging of already-connected vehicles when the connection detection unit detects that a new vehicle has been connected; a new-vehicle charging-current measurement unit that, after charging of already-connected vehicles is stopped, temporarily sends power to the new vehicle as a test and measures the amount of charging current that flows through the new vehicle; and a new-vehicle possible-to-charge determination unit that, on the basis of the amount of charging current that the new-vehicle charging-current measurement unit has measured as flowing through the new vehicle, determines whether or not continuous charging of the new vehicle is possible.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
Provided is a recharging device for a vehicle, which recharges via a recharge cable a vehicle that has a recharge control circuit mounted therein, comprising: a recharge control device that sends a recharge control signal to the recharge control circuit on the vehicle side and controls the recharging of the vehicle; a recharge control signal transmission restriction device that restricts the transmission of the recharge control signal; and a reset device that force resets the recharge control signal when transmission restrictions on recharge control signals have been removed.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
A power transfer switch in which a cross bar including a movable contact is rotated to come into contact with one of fixed contacts disposed on left and right sides of the cross bar. The cross bar has a non-circular cross-section including a protruded piece on left and right, and a rotating angle thereof is greater than a rotating allowable angle of the movable contact between the fixed contacts. A through hole into which the cross bar is inserted with play is formed on a base portion of the movable contact, and a step portion for receiving the protruded piece of the cross bar and a spring housing portion extended in a direction of a central axis of the movable contact are formed in the through hole. A compression spring is accommodated in the spring housing portion to cause the cross bar to elastically hold the movable contact.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
(1) Electric and scientific apparatus, namely, electric distribution boards, electric panel boards, high-voltage power receiving equipment, electric control panels, electric terminal panels, electric switchboards, electric circuit breakers, electric switches, electric disconnectors, terminal blocks, electric junction boxes, electric switchgears, enclosures and racks for electric distribution boards, enclosures and racks for electric panel boards, enclosures and racks for high-voltage power receiving equipment, enclosures and racks for electric control panels, electric branch boxes, enclosures and racks for electric switchboards, charging apparatus for electric and hybrid vehicles, enclosures and racks for charging apparatus for electric vehicles, control apparatus and remote surveillance apparatus for use in measuring, controlling and monitoring electric power, voltage, electric current and temperature, panels for monitoring load current, enclosures and racks for monitoring apparatus, enclosures and racks for telecommunication devices and apparatus, enclosures and racks for electronic equipment for LAN system, enclosures and racks for transmitters (telecommunication), enclosures and racks for television apparatus and TV broadcast apparatus, enclosures and racks for telephone apparatus, wiring boards (telecommunication), enclosures and racks for computers, enclosures and racks for server computers, computer programs for selecting enclosures and racks for telecommunication devices and apparatus; computer programs for selecting panel boards, computer programs which select cooling apparatus for enclosures and racks for telecommunication devices and apparatus, computer programs which select cooling apparatus for electric distribution boards and electric control panels, electronic display apparatus for advertisement, enclosures and racks for electronic display apparatus for advertisement, enclosures for electronic circuits, enclosures and racks for measuring or testing machines and instruments, boxes for watt meters, measuring instrument and apparatus for electric power, voltage and electric current, alarm panels for warning abnormality of electric facilities, electric cable ducts, electric junction boxes for sending electricity from solar battery, junction boxes for optical fibers, and electric wires and cables.
(2) Environmental control apparatus, namely, heat exchangers, air cooling apparatus for industrial purposes, air conditioning apparatus for industrial purposes, peltier cooling apparatus for industrial purposes, electric heating apparatus for industrial purposes, industrial dehumidifiers, air conditioning apparatus for supplying conditioned air to enclosures and racks for electric apparatus, panel units being accessories of air conditioning apparatus for shutting off cold air and exhaust heat, fans for ventilators, louvers for ventilating, air-conditioning fans for raised floor, air conditioners, and electric fans.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
(1) Electric and scientific apparatus, namely, electric distribution boards, electric panel boards, high-voltage power receiving equipment, electric control panels, electric terminal panels, electric switchboards, electric circuit breakers, electric switches, electric disconnectors, terminal blocks, electric junction boxes, electric switchgears, enclosures and racks for electric distribution boards, enclosures and racks for electric panel boards, enclosures and racks for high-voltage power receiving equipment, enclosures and racks for electric control panels, electric branch boxes, enclosures and racks for electric switchboards, charging apparatus for electric and hybrid vehicles, enclosures and racks for charging apparatus for electric vehicles, control apparatus and remote surveillance apparatus for use in measuring, controlling and monitoring electric power, voltage, electric current and temperature, panels for monitoring load current, enclosures and racks for monitoring apparatus, enclosures and racks for telecommunication devices and apparatus, enclosures and racks for electronic equipment for LAN system, enclosures and racks for transmitters (telecommunication), enclosures and racks for television apparatus and TV broadcast apparatus, enclosures and racks for telephone apparatus, wiring boards (telecommunication), enclosures and racks for computers, enclosures and racks for server computers, computer programs for selecting enclosures and racks for telecommunication devices and apparatus; computer programs for selecting panel boards, computer programs which select cooling apparatus for enclosures and racks for telecommunication devices and apparatus, computer programs which select cooling apparatus for electric distribution boards and electric control panels, electronic display apparatus for advertisement, enclosures and racks for electronic display apparatus for advertisement, enclosures for electronic circuits, enclosures and racks for measuring or testing machines and instruments, boxes for watt meters, measuring instrument and apparatus for electric power, voltage and electric current, alarm panels for warning abnormality of electric facilities, electric cable ducts, electric junction boxes for sending electricity from solar battery, junction boxes for optical fibers, and electric wires and cables .
(2) Environmental control apparatus, namely, heat exchangers, air cooling apparatus for industrial purposes, air conditioning apparatus for industrial purposes, peltier cooling apparatus for industrial purposes, electric heating apparatus for industrial purposes, industrial dehumidifiers, air conditioning apparatus for supplying conditioned air to enclosures and racks for electric apparatus, panel units being accessories of air conditioning apparatus for shutting off cold air and exhaust heat, fans for ventilators, louvers for ventilating, air-conditioning fans for raised floor, air conditioners, and electric fans.
Disclosed is a power transfer switch that is capable of generating identical contact pressure on either fixed contact to the left and right of a single compression spring. The power transfer switch rotates a crossbar (1) that is equipped with a movable contact (3) and brings the crossbar into contact with one of the fixed contacts (4, 5) disposed on the left and right sides of the crossbar (1). The crossbar (1) has a noncircular cross section with projecting pieces (21) on the left and right, and the rotation angle thereof is greater than the allowable rotation angle of the movable contact (3) between the left and right fixed contacts (4, 5). A through hole (23), into which the crossbar (1) is inserted with play, is formed in the base of the movable contact (3), a stepped section (24) that receives the projecting piece (21) on the crossbar (1) and a spring housing section (25) that extends in the central axis direction of the movable contact (3) are formed in the interior of the through hole (23), and the movable contact (3) is held elastically by the crossbar (1) by housing the compression spring (26) in the spring housing section (25).
H01H 31/28 - Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
H01H 33/40 - Power arrangements internal to the switch for operating the driving mechanism using spring motor
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Cabinets and boxes for electrical machines and apparatus;
cabinets and boxes for distribution boards (electricity);
cabinets and boxes for distribution consoles (electricity);
cabinets and boxes for switchboards; cabinets and boxes for
control panels (electricity); cabinets and boxes for
monitoring boards; cabinets and boxes for tables used in
monitoring operation; switch boxes; junction boxes for
electricity; branch boxes (electricity); cabinets and boxes
for telecommunication machines and apparatus; cabinets and
boxes for transmitters; cabinets and boxes for television
apparatus; cabinets and boxes for telephone apparatus;
junction boxes for telecommunication; cabinets and boxes for
electronic machines and apparatus; cabinets and boxes for
computers; cabinets and boxes for measuring and testing
apparatus and instruments; cases for electronic machines and
apparatus; cases for measuring and testing apparatus and
instruments; junction boxes for optical fibers; distribution
boards (electricity); panel boards (electricity); incoming
boards (electricity); distribution consoles (electricity);
switchboards (electricity); local switchboards
(electricity); control panels (electricity); alarm panels
(electricity); monitoring panels (electricity); monitoring
apparatus (electricity); terminal panels (electricity);
wiring boards (electricity); electric breakers; circuit
breakers (electricity); switches (electricity); electric
disconnectors; circuit closers (electricity); terminal
blocks (electricity); cable troughs (electricity);
pedestals, namely cabinets housing and mounting devices for
electrical apparatus and instruments. Heat exchangers (not being parts of machines);
refrigerators; air conditioners; dehumidifiers; ventilators;
fans for ventilators; filters for ventilators; louvers for
ventilators.
Heat exchangers, refrigerators, air conditioners, air
cooling apparatus, dehumidifiers, ventilators for industrial
use; ventilating exhaust fans, and air filters and louvers
for use with ventilators.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Cabinets and boxes for electrical machines and apparatus,
cabinets and boxes for distribution boards, cabinets and
boxes for distribution consoles; cabinets and boxes for
switchboards, cabinets and boxes for control panels,
cabinets and boxes for monitoring boards, cabinets and boxes
for tables used in monitoring operation, switch boxes,
junction boxes for electricity, branch boxes, cabinets and
boxes for telecommunication machines and apparatus, cabinets
and boxes for transmitters, cabinets and boxes for
television apparatus, cabinets and boxes for telephone
apparatus, junction boxes for telecommunication, cabinets
and boxes for electronic machines and apparatus, cabinets
and boxes for computers, cabinets and boxes for measuring
and testing apparatus and instruments, cases for electronic
machines and apparatus, cases for measuring and testing
apparatus and instruments, junction boxes for optical
fibers, distribution boards, panel boards, incoming boards,
distribution consoles, switchboards, local switchboards,
control panels, alarm panels, monitoring panels, monitoring
apparatus, terminal panels, wiring boards, breakers, circuit
breakers, switches, disconnecters, circuit closers, terminal
blocks, cable troughs, pedestals, namely, cabinets, housing
and mounting arrangements for electrical apparatus and
instruments. Heat exchangers, refrigerators, air conditioners,
dehumidifiers, ventilators, fans, filters and louvers for
ventilators.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Cabinets and boxes for electrical machinery and apparatus,
cabinets and boxes for distribution boards (electricity),
cabinets and boxes for distribution consoles (electricity),
cabinets and boxes for switchboards, cabinets and boxes for
control panels (electricity), cabinets and boxes for
monitoring boards (electricity), cabinets and boxes for
table used in monitoring operation, switch boxes
(electricity), junction boxes (electricity), branch boxes
(electricity), cabinets and boxes for telecommunication
machinery and implements, cabinets and boxes for
transmitters (telecommunication), cabinets and boxes for
television apparatus, cabinets and boxes for telephone
apparatus, junction boxes (telecommunication), cabinets and
boxes for applied electronic machinery and implements,
cabinets and boxes for computers; cabinets and boxes for
measuring and testing apparatus and instruments, cases for
electronic machinery and implements, cases for measuring and
testing apparatus and instruments, junction boxes for
optical fibers, frames, boxes for chargers, distribution
boards, panel boards, incoming panels, distribution consoles
(electricity), switchboards, local switchboards, control
panels (electricity), alarm panels, monitoring panels,
monitoring apparatus (electricity), terminal panels, wiring
boards (telecommunication), breakers, circuit breakers,
contacts (electricity), switches (electricity),
disconnectors, circuit closers, electric relays, electric
connections, connections for electric cables, junction
sleeves for electric cables; connecters (electricity),
sockets, plugs, and other contacts (electric connections),
terminals blocks, terminals (electricity), connectors for
telecommunication, conductors (electricity), conductors
bars, electric cables, parts or supporting conductors,
sheaths for electric cables, ducts (electricity),
electricity conduits, earth apparatus, computer programs,
cable troughs, home pedestals; manholes of wire splicing,
handholes of wire splicing, battery chargers, locking
devices of cabinets for electrical machinery and apparatus,
locking devices of cabinets for telecommunication machinery
and implements; locking devices of cabinets for applied
electronic machinery and implements, electric locks, handles
of cabinets for electrical machinery and apparatus, handles
of cabinets for telecommunication machinery and implements,
handles of cabinets for applied electronic machinery and
implements, part of electromagnetic shields for electrical
machinery and apparatus, heat regulating apparatus and
instruments, thermostats, humidity control apparatus and
instruments, measuring apparatus, electric measuring
devices, voltmeters, ammeters, wattmeters, temperature
indicators, hygrometers, level gauges, meters, indicators
(electricity), seismoscopes, voltage surge protectors,
lightning arresters, time switches, flashers. Heat exchangers, refrigerating apparatus and machines, air
conditioners, air cooling apparatus, heat pumps, freezers,
dehumidifiers, air dryers for business purposes,
ventilators, fans for air-conditioning, fans (parts of
industrial installations), filters (parts of industrial
installations), filters for air conditioning, filters for
fans, filters for ventilators, louvers (parts of industrial
installations); electric radiators, heat radiators, fins for
cooling devices, electric heating apparatus, heating
elements.
