A power inlet box has as housing with sidewalls and a bottom wall that define an interior. A socket is secured to the housing, to enable power from a power source to be provided to the power inlet box. Circuit breakers are secured to the bottom wall for providing overload protection in the power inlet box. Each circuit breaker includes a reset button located below the bottom wall within a recess defined by the housing.
A power inlet box has as housing with sidewalls and a bottom wall that define an interior. A socket is secured to the housing, to enable power from a power source to be provided to the power inlet box. Circuit breakers are secured to the bottom wall for providing overload protection in the power inlet box. Each circuit breaker includes a reset button located below the bottom wall within a recess defined by the housing.
A power inlet box includes a base, a front cover having an opening formed therein that is removably coupled to the base, and a cover cap pivotably connected to the front cover to temporarily cover the opening. The base, front cover, and cover cap define an interior. The base and the front cover may be made of different materials, for instance, a metallic base and a plastic front cover. The base and the front cover may also be made of the same material, such as plastic. Electrical outlet inserts and electrical inlet inserts may be releasably inserted into the opening. When the power inlet box is not being used, the cover cap may be pivoted to a closed position in which the opening is covered. Additionally, a window may be formed in the front cover to enable visual inspection within the box. The window may be substantially translucent or it may be substantially clear.
A power inlet box includes a base, a front cover having an opening formed therein that is removably coupled to the base, and a cover cap pivotably connected to the front cover to temporarily cover the opening. The base, front cover, and cover cap define an interior. The base and the front cover may be made of different materials, for instance, a metallic base and a plastic front cover. The base and the front cover may also be made of the same material, such as plastic. Electrical outlet inserts and electrical inlet inserts may be releasably inserted into the opening. When the power inlet box is not being used, the cover cap may be pivoted to a closed position in which the opening is covered. Additionally, a window may be formed in the front cover to enable visual inspection within the box. The window may be substantially translucent or it may be substantially clear.
The present inventors have recognized that locating cable adapters which may be required in electrical systems, such as between power generators and electrical inlets, may be greatly aided by applying visually striking distinguishing indicators, such as colors, molded-in patterns or shaped identifiers, shaped protrusions, and the like, at ends of each cable adapter which distinguishing indicators correspond to electrical/mechanical standards or connections of various types. This, in turn, may allow for rapid deployment of such cable adapters in the system, including from a kit.
H01R 31/06 - Intermediate parts for linking two coupling parts, e.g. adapter
H01R 43/00 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
H01R 13/64 - Means for preventing, inhibiting or avoiding incorrect coupling
An enclosure, such as an electrical enclosure, includes a base having a series of walls that define an interior, and a cover. The base and cover include a hinge arrangement that enables the cover to be secured to the base for movement between a closed position and an open position. The hinge arrangement enables the cover to be hinged to either a first wall of the base or an opposite, second wall of the base. A latch member is configured to be selectively engaged with either the first wall of the base or the second wall of the base, and is engaged with the second wall of the base when the cover is hinged to the first wall of the base and is engaged with the first wall of the base when the cover is hinged to the second wall of the base.
An enclosure, such as an electrical enclosure, includes a base having a series of walls that define an interior, and a cover. The base and cover include a hinge arrangement that enables the cover to be secured to the base for movement between a closed position and an open position. The hinge arrangement enables the cover to be hinged to either a first wall of the base or an opposite, second wall of the base. A latch member is configured to be selectively engaged with either the first wall of the base or the second wall of the base, and is engaged with the second wall of the base when the cover is hinged to the first wall of the base and is engaged with the first wall of the base when the cover is hinged to the second wall of the base.
G04F 3/00 - Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
A load management module for disconnecting continuous loads for a predetermined amount of time when an excessive load is experienced to permit critical intermittent loads to remain energized. The load management module has a first group of relays and a second group of relays each connected to various intermittent loads (e.g., lighting branch circuits) and each controlled by a timer. The load management module activates the relays when a maximum power output of a secondary power source is exceeded. An automatic transfer switch capable of operating with larger disconnect/breaker sizes (e.g., 200 amps) for larger emergency backup systems. The automatic transfer switch comprises a plate operably connected to a drive system and a pair of breakers.
H01H 9/26 - Interlocking, locking, or latching mechanisms for interlocking two or more switches
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
A switching device includes multiple switches configured to selectively connect one of two power sources to electrical loads. The switching device may include either single-pole or double-pole, double-throw switches and corresponding single or double circuit breakers. The single and double circuit breakers are each configured to be inserted into openings having the same physical dimensions. At least one of the switches is a double-pole, double-throw switch, allowing two branch circuits to be transferred between power sources via the switch. A double breaker corresponding to the double-pole, double-throw transfer switch permits each of the branch circuits being switched by the double-throw switch to be wired through a separate protective circuit.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
H02J 9/04 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
H01H 73/00 - Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
12.
Off grid backup inverter automatic transfer switch
A power conversion system for use with an alternate energy source includes a first inverter, a battery, and a second inverter, each of which receives power from the alternate energy source. The output of the first inverter and the grid are each connected to at least one electrical load via a load center. The battery is charged via a charger connected to the alternate energy source. This stored energy powers a selected portion of the electrical loads during a failure of the utility grid. The second inverter is connected between the battery and a transfer switch. During normal grid operation, the second inverter is disabled and the transfer switch connects the load center to the selected electrical loads. During a failure of the utility grid, the first inverter is disabled, the second inverter is enabled, and the transfer switch connects the second inverter to the selected electrical loads.
A method and system for selectively controlling the supply of electrical power to an electrical panel that is capable of receiving electrical power from more than one power source, such as a utility power supply and an auxiliary power supply, e.g., an electrical generator, prevents the neutral conductor of the electrical panel from being connected to one power supply when the hot conductors of the electrical panel are connected to another power supply.
An interlock arrangement is configured for controlling a pair of aligned switches connected to two alternate power supplies. An interlock member is positioned between the aligned switches and is moveable between a first interlock position and a second interlock position. The interlock member has first and second blocking components. In the first interlock position, the first switch is ON and the second blocking component prevents movement of the second switch to an ON position, and the interference between the first switch and first blocking component prevents the interlock member from moving to the second interlock position. In the second interlock position, the second switch is ON and the first blocking component prevents movement of the first switch to an ON position, and the interference between the second switch and second blocking component prevents the interlock member from moving to the first interlock position.
An electrical box cover including a body for securing a plurality of electrical connections therein, a cover having a door, the door having a first end with at least one male hinge, at least one female hinge attached to the cover, and wherein the at least one male hinge is removably connected with the at least one female hinge to selectively open and close the door.
A timer assembly housing is configured to include a number of features, including but not limited to a tortuous sealing lip, adjustable hinge assembly, removable backing plate, removable pin hinge, toggle switch, and a wiring lid. The timer assembly includes a weatherproof housing having a base with a series of sidewalls and a rear wall, the base sidewalls extending forward from the rear wall to an open front, a lid having a series of sidewalls and a front wall, the lid sidewalls extending forward from the front wall, and a timer assembly positioned within the base. The lid is selectively pivotably secured to the base along one of the base sidewalls.
H01H 43/02 - Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operation after the programme is completed Details
A timer assembly is configured with a motor with slim construction so as to provide a thinner and more compact timer assembly. A timer assembly with a thinner profile and reduced thickness is achieved by incorporating the motor within the timer's baseplate. Additional advantages may be achieved by positioning the motor within an area defined by the baseplate and the time indicator, or by mounting the motor in an offset manner with respect to the baseplate. Further, the orientation of the motor may be changed to mount the motor to the front or rear of the baseplate to provide for an additional thickness reduction.
G04F 1/00 - Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
H01H 7/08 - Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with timing by mechanical speed-control devices
H01H 43/10 - Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operation after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
H01H 43/00 - Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operation after the programme is completed
G04F 8/00 - Apparatus for measuring unknown time intervals by electromechanical means
G04C 23/16 - Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval
H01H 43/12 - Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operation after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after a single cycle of operation
G04C 23/10 - Constructional details for actuating any element which operates, or initiates the operation of, the device concerned
A timer is configured with an electrical contact assembly with a thin construction, which provides a thinner and more compact timer assembly. In particular a thinner and more compact timer assembly is achieved by implementing various features of the present invention, including but not limited to, recessed contact arm channels, contact arms positioned wholly on a single side, contact arms oriented with a length parallel to the baseplate and a thickness parallel with the baseplate thickness, and a slim profile actuator which moves in the direction of the length.
G04F 1/00 - Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
H01H 7/00 - Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
An electrical power distribution apparatus that is configured to selectively communicate power from alternate power sources to one or more loads in a manner that maintains isolation of the input power derived from the alternate sources. The electrical power distribution apparatus includes a neutral input for connecting to a neutral output of the auxiliary power supply and a ground conductor for connecting a ground conductor of the auxiliary power supply. The apparatus includes an electrical bus that receives electrical power from a first electrical output of the auxiliary power supply and unswitchably communicates the first electrical output to a breaker connected to a load.
A timer assembly housing is configured to include a number of features, including but not limited to a tortuous sealing lip, adjustable hinge assembly, removable backing plate, removable pin hinge, toggle switch, and a wiring lid. The timer assembly includes a weatherproof housing having a base with a series of sidewalls and a rear wall, the base sidewalls extending forward from the rear wall to an open front, a lid having a series of sidewalls and a front wall, the lid sidewalls extending forward from the front wall, and a timer assembly positioned within the base. The lid is selectively pivotably secured to the base along one of the base sidewalls.
G04C 23/04 - Housings, supports, shielding, or similar stationary parts
H01H 9/04 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
H01H 43/02 - Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operation after the programme is completed Details
A line-side circuit interrupter protection system monitors the current flowing in a circuit in order to determine whether any current is flowing outside of the circuit upstream of the point at which a power supply is connected to a plurality of circuits. The system is located between the power supply and the main circuit panel, which is advantageous in certain applications in which an auxiliary power supply is used when a utility power supply is unavailable. In the event that the system detects current flowing outside of the circuit, the circuit will be broken to eliminate any potentially unsafe conditions.
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
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 switch coupling assembly is configured for coupling switch handles to provide simultaneous actuation and deactivation of an electrical device. The switch handles are arranged in a side by side configuration and have passages are aligned. A coupling rod is inserted through the passages in the handles. A spacer is positioned between the switch handles and receives the coupling rod therethrough. An outside surface of the coupling rod is threaded to interact with either or both of the inner surface of the spacer or the inner surface of the handles in order to prevent inadvertent axial motion of the rod relative to the spacer or the switch handles.
H01H 9/26 - Interlocking, locking, or latching mechanisms for interlocking two or more switches
H01H 13/72 - Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position
H01H 13/76 - Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard wherein some or all of the operating members actuate different combinations of the contact sets, e.g. ten operating members actuating different combinations of four contact sets
A power inlet box suitable for outdoor or external use is configured in such a manner so as to prevent moisture from entering the power inlet enclosure. A hinged lid assembly is installable directly on the top face of a flanged power inlet enclosure to provide a face seal therewith. The hinged lid assembly has a cover and a base that form a tongue-and-groove seal, thus providing a first line of defense from moisture or other contaminants entering the inlet. As a second line of defense, a tapered stopper is provided on the inside of the cover to provide a stopper seal. A lateral seal is provided at the hinge point of the hinged lid assembly to prevent moisture from entering the hinge area where a tongue-and-groove seal is not present.
A circuit tester for testing operation of an electrical receptacle includes a speaker that generates an audible signal when a voltage is present at the electrical receptacle. A cap on the end of the circuit tester includes openings on the side through which the audible signal may pass. The cap may be rotated on/off the housing such that the openings on the side of the cap move along the side of the circuit tester and become partly or fully obstructed by the side of the circuit tester, thereby varying the volume of the audible signal.
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 19/145 - Indicating the presence of current or voltage
G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
G01R 31/04 - Testing connections, e.g. of plugs or non-disconnectable joints
27.
Electrical connector using air heated by an electrical arc during disengagement of contacts to extinguish the electrical arc
An electrical connector system is configured for extinguishing a DC arc without the need for externally-driven forces by utilizing the mechanical action of a contact being removed from a pressurized cavity and releasing a flow of air to extinguish the arc. A female connector is disposed within an air-tight cavity. The male connector is removably inserted into the air-tight cavity, sealing the cavity, and providing an electrical connection. When the male connector separates from the female connector, a DC arc is created. However, the male connector continues to restrict air flow into or out of the cavity. The temperature rise within the cavity causes a pressure build-up and the eventual removal of the male connector from the cavity forcefully releases a blast of pressurized air through a constricted opening and extinguishes the arc.
A transfer switch configured to detect a ground current is configured to selectively connect a first power source or a second power source to a load. Each of the power sources includes at least one “hot” lead and one neutral lead, and the transfer switch is configured to switch both the “hot” and the neutral leads. If the neutral switching portion of the transfer switch fails, current may be supplied to the load via the “hot” lead of one of the power sources and return from the load via a ground conductor and the neutral lead of the other power source. The transfer switch includes a current sensor, detecting current on the ground conductor, in order to detect such a condition. The signal from the current sensor is provided to a control circuit, which, in turn, activates an indicator if the current on the ground conductor exceeds a predefined level.
An electrical connection device has a first end and a second end configured to be electrically coupled to a first conductor and a second conductor. A pair of conductive elements are arranged between the first end and the second end and configured for engagement with the first and second conductors. The conductive elements include a respective flat segment and a bent segment. The bent segments define an opening in which one of the first and second conductors are configured to be received. The bent segments include a number of corners configured to engage opposing sides of the one of the first and second conductors at a number of discrete points along at least a portion of the length of the at least one first and second conductors.
A power transfer device for connecting an electrical load to a power supply is disclosed. The power transfer device monitors the operating status of the power supply. Upon loss of power at the power supply, the power transfer device opens a switch between the power supply and the electrical load. When power is restored, the power transfer device executes a delay time module. After the delay time module has timed out, the power transfer device closes the switch to reconnect the power supply and the electrical load. Power transfer devices may be supplied to each of multiple loads connected to a power supply. By setting the time delay period of each power transfer device to a different duration, the electrical transients resulting from reconnecting all of the electrical loads to the power supply are reduced.
H01H 47/00 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
H01H 35/00 - Switches operated by change of a physical condition
H01H 83/18 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by abnormal product of, or abnormal phase angle between, voltage and current, e.g. directional relay
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
A timer is configured with a lighting feature so as to provide illumination to the timer in dark environments. The light may actuate by the interaction of an actuating member and sensor within the timer housing. The light may turn on when the enclosure door is in an open position and the light may turn off when the enclosure door is in a closed position. The timer assembly includes a base having a sensor, a lid having an actuating surface or member, a time indicator positioned in the base, and a light interconnected with the base, wherein the actuating surface or member selectively operates the light.
A power transfer device adapted for interconnection with the electrical system of a building includes a cabinet, a set of switches mounted to the cabinet, and wires adapted to connect the switches to an electrical distribution panel associated with a building electrical system. The power transfer device includes a first compartment and a second compartment partitioned from one another by a removable intermediate wall that slidably engages a base that defines a back wall of the cabinet. The switches are secured to a base of the cabinet and a first panel closes the first compartment and cooperates with the set of switches such that the switches are operable through the first panel and discrete switches can be removed from the cabinet when the first panel is the removed from cabinet without interfering with an orientation of other switches relative to the cabinet.
A transfer switch mountable in a standard electrical panel connects either a utility supply or an auxiliary supply to an electrical system. An internal mechanical interlock prevents both the utility supply and the auxiliary supply from simultaneously being connected to the system. The transfer switch may utilize either a rocker-style or a blade style switch. A light-emitting diode provides an indication of whether the utility supply is connected to and a voltage is present at the utility supply terminal. A power meter provides an indication of the magnitude of power drawn from the auxiliary supply when the auxiliary supply is connected to the load.
H01H 9/20 - Interlocking, locking, or latching mechanisms
H01H 3/16 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
H01H 9/08 - Arrangements to facilitate replacement of switch, e.g. cartridge housing
H01H 9/24 - Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
H01H 9/16 - Indicators for switching condition, e.g. "on" or "off"
An interlock arrangement allows a floating neutral electrical generator having a receptacle, such as a duplex receptacle, absent GFCI protection to be used to provide electrical power to the electrical system of a home or other building during utility power interruption. The interlock arrangement includes structure to disable or prevent access to the duplex receptacle when the electrical generator is coupled to the power cord used to transfer electrical power from the generator to the electrical system of the building. Thus, the duplex receptacles cannot be used to power electrical devices when the generator is connected to supply power to the electrical system of the building. Conversely, when the generator is physically disconnected from the electrical system of the building, the interlock arrangement exposes or supplies power to the duplex receptacles, and may be configured to close access to the receptacle used for connecting to a building electrical system.
A power transfer device adapted for interconnection with the electrical system of a building includes a housing that includes a base having a back wall and an intermediate member that engages the base. A first housing section engages the base and the intermediate member and defines a first interior portion. A second housing section engages the base and the intermediate member and cooperates with the base to define a second interior portion. Fasteners secure the intermediate member, the first housing section and the second housing section together. Power transfer switching components are interconnected with and carried by one of the housing sections. A cover may be pivotably mounted to the housing. During assembly, the power switching components are mounted to one of the housing sections to form a subassembly that is connected to the base as a single unit.
A switching device is configured to connect a split-phase power source to a load. The split-phase power source includes a first hot lead, a second hot lead, and a neutral lead. When the split-phase power source is generating power, the voltage between the first hot lead and the neutral lead closes a first contact and the voltage between the second hot lead and the neutral lead closes a second contact. The contacts are connected in series between the first hot lead, the second hot lead and a third switch. The voltage potential present between the first hot lead and the second hot lead closes a third and fourth contact. The third contact is connected in series between the first hot lead and the load and the fourth contact is connected in series between the second hot lead and the load. The switching device protects against open neutral conditions.
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H02H 5/10 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
H02H 11/00 - Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
H02H 3/20 - 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 excess voltage
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
38.
Semiautomatic transfer switch with open neutral protection
A semiautomatic switching device is configured to selectively connect one of two power sources to a load. Each of the power sources is a split-phase power source including a first hot lead, a second hot lead, and a neutral lead. When the second split-phase power source is generating power, the voltage between the first or second hot lead and the neutral lead closes a corresponding first or second contact. The first and second contacts are connected in series between the first hot lead, the second hot lead and a third switch. The voltage potential present between the first hot lead and the second hot lead closes a third and fourth contact. The third contact is connected in series between the first hot lead and the load and the fourth contact is connected in series between the second hot lead and the load. The switching device protects against open neutral conditions.
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 9/08 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over requiring starting of a prime-mover
A transfer switch configured to transfer connection of each power conductor and neutral conductor of a load between two power supplies. The transfer switch includes a switch member configured to transfer each of the connections in tandem. The transfer switch disconnects each power conductor prior to disconnecting the neutral conductor of the first supply when disconnecting the load from either power supply and connects the neutral connector prior to connecting each power conductor when connecting the load to either power supply.
A transfer switch for interconnection in a power supply system for an electrical load, such as a traffic signal, for selectively switching between primary and alternate power sources. The transfer switch includes a housing having a cover that is movable between open and closed positions for selectively providing access to an interior. An input receptacle is configured to engage an electrical connector of the alternate power source. The input receptacle is movable between a first position for facilitating engagement of the connector with the receptacle when the cover is open, and a second position when the cover closed. A selector switch is contained within the interior and interconnected with the load and the primary and alternate power sources. The selector switch selectively connects the primary power source and the alternate power source to the load, and the cover prevents access to the selector switch when the cover is closed.
A power transfer device adapted for interconnection with the electrical system of a building includes a housing that includes a base having a back wall and an intermediate member that engages the base. A first housing section engages the base and the intermediate member and defines a first interior portion. A second housing section engages the base and the intermediate member and cooperates with the base to define a second interior portion. Fasteners secure the intermediate member, the first housing section and the second housing section together. Power transfer switching components are interconnected with and carried by one of the housing sections. A cover may be pivotably mounted to the housing.
A switch assembly and method of switching a load between a first power source and a second power source that maintains a desired sequencing of the making and breaking of both the neutral and power connections in response to a single user input. The switch assembly includes an actuator that is movable between a first position and a second position and a first movable element and a second movable element that are operably coupled to one another and the actuator. A positive switch contact arrangement is coupled with the first movable element and a neutral switch contact arrangement is coupled with the second movable element. The positive switch contact arrangement and the neutral switch contact arrangement comprise geometrically different constructions so that moving the actuator between the first position and the second position avoids an open neutral condition.
H01H 23/20 - Driving mechanisms having snap action
H01H 23/24 - Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with two operating positions
43.
SWITCH ASSEMBLY WITH SEQUENTIALLY ACTUATED POWER AND NEUTRAL SWITCHING
A switch assembly and method of switching a load between a first power source and a second power source that maintains a desired sequencing of the making and breaking of both the neutral and power connections in response to a single user input. The switch assembly includes an actuator that is movable between a first position and a second position and a first movable element and a second movable element that are operably coupled to one another and the actuator. A positive switch contact arrangement is coupled with the first movable element and a neutral switch contact arrangement is coupled with the second movable element. The positive switch contact arrangement and the neutral switch contact arrangement comprise geometrically different constructions so that moving the actuator between the first position and the second position avoids an open neutral condition.
H01H 31/30 - 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 actuated-through the movement of one or more insulators
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 9/04 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
44.
Automatic transfer switch having an interlock arrangement
An automatic transfer switch to automatically electrically connect an electrical panel to a second power source, e.g., an electric generator, during interruption or failure of a first power source, e.g., a utility power supply, includes a powered interlock arrangement that is operative to prevent the electrical panel from being electrically connected to both power sources simultaneously.
An automatic transfer switch to automatically electrically connect an electrical panel to a second power source, e.g., an electric generator, during interruption or failure of a first power source, e.g., a utility power supply, includes a powered interlock arrangement that is operative to prevent the electrical panel from being electrically connected to both power sources simultaneously.
A power transfer device adapted for interconnection with the electrical system of a building includes a housing and a set of power transfer components interconnected with the housing for supplying auxiliary electrical power to the electrical system of a building. A light is mounted to the housing to provide illumination of the power transfer components when the power transfer device is supplied with auxiliary electrical power.
A power transfer device adapted for interconnection with the electrical system of a building includes a cabinet, a set of switches mounted to the cabinet, and wires adapted to connect the switches to an electrical distribution panel associated with a building electrical system. The power transfer device includes a first compartment and a second compartment partitioned from one another by a removable intermediate wall that slidably engages a base that defines a back wall of the cabinet. A first panel closes the first compartment and a second panel is adapted to selectively close the second compartment. The lower compartment provides an interior cavity in which electrical connection between a set of lead wires, connected to the switches, and power input wires can be made.
A power transfer device adapted for interconnection with the electrical system of a building includes a cabinet, a set of switches mounted to an upper panel of the cabinet, and wires adapted to connect the switches to an electrical distribution panel associated with a building electrical system. The power transfer device includes an upper compartment and a lower compartment partitioned from one another by an intermediate wall. The upper panel closes the upper compartment and a lower panel is adapted to selectively close the lower compartment. A strain relief member is mounted in the lower compartment and tightly holds the wires against the housing to prevent the unintentional disconnection of the wires from the switches.
An automatic transfer switch configured for connection to a non-traditional, full-time or intermittent power source, such as a wind turbine or solar panel, selectively connects the non-traditional power source as a primary power source and a utility-derived power source as a secondary power source. The intermittent power source includes an energy storage device, such as a bank of DC batteries, to supplement power delivery during periods of low energy production. The power is provided to an AC load via a DC-to-AC inverter. The transfer switch includes an input to monitor the voltage level on the energy storage device and will switch from the primary power source to the utility power source when the voltage level on the energy storage device drops below a preset level. Thus, a loading condition that exceeds the rating of the inverter will not fault the inverter or limit the power available to the loads.
H02J 3/02 - Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequenciesCircuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of ac power and of dc power
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
50.
TRANSFER SWITCH FOR AUTOMATICALLY SWITCHING BETWEEN ALTERNATIVE ENERGY SOURCE AND UTILITY GRID
An automatic transfer switch configured for connection to a non-traditional, full-time or intermittent power source, such as a wind turbine or solar panel, selectively connects the non-traditional power source as a primary power source and a utility-derived power source as a secondary power source. The intermittent power source includes an energy storage device, such as a bank of DC batteries, to supplement power delivery during periods of low energy production. The power is provided to an AC load via a DC-to-AC inverter. The transfer switch includes an input to monitor the voltage level on the energy storage device and will switch from the primary power source to the utility power source when the voltage level on the energy storage device drops below a preset level. Thus, a loading condition that exceeds the rating of the inverter will not fault the inverter or limit the power available to the loads.
A system and method of interlocking a plurality of electrical panel switches includes an interlock assembly having an interlock. The interlock has a first position that allows connection of one of utility power and power from an alternate power supply, such as a generator, to the electrical panel and prevents connection of the other of the utility power and alternate power. The interlock has a second position that allows connection of the other of the utility power and alternate power and prevents connection of one of the utility power and alternate power to the electrical panel. The interlock also is constructed to control the positioning and sequence of operation of neutral connections between the power supplies and the electrical panel.
A transfer switch mountable in a standard electrical panel connects either a utility supply or an auxiliary supply to an electrical system. An internal mechanical interlock prevents both the utility supply and the auxiliary supply from simultaneously being connected to the system. The transfer switch may utilize either a rocker-style or a blade style switch. A light-emitting diode provides an indication of whether the utility supply is connected to and a voltage is present at the utility supply terminal. A power meter provides an indication of the magnitude of power drawn from the auxiliary supply when the auxiliary supply is connected to the load.
An electrical panel has an Arc Fault Current Interrupter (AFCI) breaker connected to a power supply input, which is operative to interrupt current flow to multiple circuits when an arc fault is detected. The AFCI breaker, which may include Ground Fault Current Interrupter (GFCI) components, provides global arc fault and ground fault protection for multiple circuits of a load center, such as a main panel, sub-panel, transfer switch, and the like.
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
Sequenced separately-derived transfer switch capable of switching a load between a pair of power supplies without introducing open neutral switching transients
An interlock arrangement includes a pair of slidable lockouts operatively associated with utility and generator side switches of an electrical panel. Together with either an interlinked member or a rocker lockout, the interlock arrangement sequences manual switching of the utility and generator side switches according to a pre-defined switching sequence, such as a seven step sequence or a five step sequence.
An electrical enclosure or housing, such as a power inlet box, is constructed of weather resistant material and has a knockout opening formed in a wall member and a plug that can be removably seated in the knockout opening. The opening and the plug have complimentary geometries and thicknesses which enable the plug to be mounted flush with the exterior and interior wall surfaces of the wall member when seated in the knockout opening. The opening and plug are shaped such that a seated plug is normally removed by applying a blunt force to the plug from within the interior volume of the inlet box, and cannot be removed from the exterior of the box.
Sequenced separately-derived transfer switch capable of switching a load between a pair of power supplies without introducing open neutral switching transients
An interlock arrangement operatively associated with utility and generator side switches of an electrical panel including a first main switch associated with the first power supply and a second main switch associated with the second power supply. The interlock arrangement includes a first neutral switch associated with the first power supply, and a second neutral switch associated with the second power supply. A lockout sequencer arrangement has a first lockout that restricts simultaneous switching of the first and the second neutral switch, a second lockout configured to engage the first lockout to restrict movement of the first lockout when the first main switch is a conductive position, and a third lockout configured to engage the first lockout to restrict movement of the first lockout when the second main switch is in a conductive position.
The present invention is directed to an outlet center for use with a power inlet box to electrically connect one or more loads to an auxiliary power supply connected to the power inlet box. The outlet center is designed to be mounted to an interior surface of a wall with the power inlet box mounted to an exterior surface of the wall. Electrical conductors extend through the wall between the outlet center and the power inlet box. The outlet center includes sockets adapted to receive the plug of an electrical load so that auxiliary power may be fed to the electrical load during primary power unavailability. The outlet center may illuminate when auxiliary power is available to assist a user in locating the outlet center during blackout conditions and may also include an indicator lamp that illuminates when auxiliary power is being provided to an electrical load connected to the outlet center.
A manually operated transfer-type switch has an electrically interlocked isolating plug and plugboard arrangement to isolate two power supplies, e.g., utility and electric generator, from one another. The switch functions to connect electrical loads with either the utility or generator power supply without performing making and breaking of current. The plug is engaged with the plugboard in a first position for supplying utility power and in a second position for providing generator power. A locking arrangement prevents the disengagement of the plug from the plugboard when power is supplied from either the utility or from the generator.
A system for indicating a power condition in a conductor includes an indicator constructed to provide notification to a user of a utility power condition, and a sensor non-electrically connected to a utility conductor to control operation of the indicator in response to detection of power in the utility conductor.
An electrical panel is operable to receive electrical power from a first power supply and a second power supply. The electrical panel includes a neutral bus conductor having a stab configured to engage one or more switching devices and a separation formed in a bus conductor to electrically isolate one of the stabs.
H01H 47/00 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
64.
Power inlet box with removable socket mounting member
A power inlet box suitable for outdoor or external use is configured in such a manner that an electrical socket may be electrically coupled to an interior load before the electrical socket is secured within the power inlet box. The power inlet box may be formed from weather or otherwise corrosion resistant material such as plastic and is designed such that the electrical socket faces downward toward an exposed lower end of the power inlet box. The electrical socket is supported by a mounting member that may be removably mounted to the power inlet box to secure the electrical socket within the power inlet box.
A system and method of interlocking a plurality of electrical panel switches includes an interlock assembly having an interlock. The interlock has a first position that allows connection of one of primary power and power from an alternate power supply, such as a generator, to the electrical panel and prevents connection of the other of the primary power and alternate power. The interlock has a second position that allows connection of the other of the primary power and alternate power and prevents connection of one of the primary power and alternate power to the electrical panel. The interlock also is constructed to control the positioning and sequence of operation of neutral connections between the power supplies and the electrical panel.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Electric transfer switches; electric transfer panels, namely, electric power distribution panels with power transfer capability for switching between alternate power sources, electrical power distribution units; electrical power inlet boxes for connection to a building electrical system for supplying power from an auxiliary power source; electric power outlets and power cords for standby generating systems; parts for all of the foregoing; auxiliary power supplies; electric devices for providing, transforming, testing, connecting or otherwise facilitating the installation or use of an auxiliary power supply; sensors for detecting electrical current or voltage; sensors for detecting electrical usage parameters of appliances and other electrical loads; time switches, namely, switches with a timing feature for selectively connecting an electrical power supply to an electrical load; and timers.
A power meter has a measuring circuit composed entirely of analog components that measures the instantaneous current draw of one or more electrical devices, such as home appliances. The power meter may be in the form of a hand-held device that includes elongated connections that allow a homeowner to measure the current draw of an electrical device without significant displacement of the electrical device. In addition to measuring current draw, the power meter may provide an estimated wattage consumed by the measured electrical devices.
A power meter has a measuring circuit composed entirely of analog components that measures the instantaneous current draw of one or more electrical devices, such as home appliances. The power meter may be in the form of a hand-held device that includes elongated connections that allow a homeowner to measure the current draw of an electrical device without significant displacement of the electrical device. In addition to measuring current draw, the power meter may provide an estimated wattage consumed by the measured electrical devices.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric transfer switches, electric transfer panels, namely, electrical power distribution panels with power transfer capability for switching between alternate power sources, electrical power distribution units, electrical power inlet boxes for connection to a building electrical system for supplying power from an auxiliary power source, electric power outlets, and power cords for standby generating systems, and parts therefor; devices or systems for providing an alert as to an actual or potential harmful or damaging situation or condition on a premises, namely, sensors for detecting power outage, water leakage, flooding, sump pump failure, low temperature or unwanted entry, transmitters for communicating an alert as to an actual or potential harmful or damaging situation or condition on a premises, namely, power outage, water leakage, flooding, sump pump failure, low temperature or unwanted entry, alarms for signaling an actual or potential harmful or damaging situation or condition on a premises, namely, power outage, water leakage, flooding, sump pump failure, low temperature or unwanted entry; auxiliary power supplies; receptacles and switches for connecting an auxiliary power supply to a building electrical system; sensors for detecting electrical current or voltage; sensors for detecting electrical usage parameters of appliances and other electrical loads; time switches, namely, switches with a timing feature for selectively connecting an electrical power supply to an electrical load, and timers
70.
Method of sequentially actuating power supply switches including a neutrally connected switch
An interlock assembly for use with a pair of aligned multiple switch assemblies configured to control the supply of electrical power to an electrical panel. Each multiple switch assembly includes a two-pole transfer switch for a pair of “hot” conductors, and a single-pole transfer switch for a neutral connection. The interlock assembly is movably mounted relative to both of the multiple switch assemblies, and is configured to control a sequence of connection and interruption of each neutral connection relative to switching the hot conductors associated with switching each multiple switch assembly. The interlock assembly prevents the “hot” conductors of each multiple switch assembly from being connected without the associated respective neutral connection having been made in advance. The interlock assembly also ensures that the neutral connection of each multiple switch assembly is interrupted without previous interruption of the connection of the respective “hot” conductors.
An interlock assembly for use with a pair of aligned multiple switch assemblies configured to control the supply of electrical power to an electrical panel. Each multiple switch assembly includes a two-pole transfer switch for a pair of “hot” conductors, and a single-pole transfer switch for a neutral connection. The interlock assembly is movably mounted relative to both of the multiple switch assemblies, and is configured to control a sequence of connection and interruption of each neutral connection relative to switching the hot conductors associated with switching each multiple switch assembly. The interlock assembly prevents the “hot” conductors of each multiple switch assembly from being connected without the associated respective neutral connection having been made in advance. The interlock assembly also ensures that the neutral connection of each multiple switch assembly is interrupted without previous interruption of the connection of the respective “hot” conductors.
A neutral connection arrangement for use with a pair of aligned transfer switch assemblies of an electrical panel. The first transfer switch assembly is operable to regulate electrical connection of a neutral conductor of a utility service, and the second transfer switch assembly is operable to connect a neutral conductor of a generator. The neutral connection arrangement may be in the form of a neutral bracket apparatus that includes a bracket having a first mount member, a second mount member, and a third mount member. The first mount member is attached at the first neutral bus of the electrical panel, and the second mount member is attached at the second neutral bus of the electrical panel located opposite the first neutral bus. An elongated body portion electrically connects the first and second mount members. The third mount member is generally U-shaped and extends from the elongated body portion for electrical connection to the first and second transfer switch assemblies. Alternatively, the neutral bracket apparatus may have an outer end secured to one of the neutral buses of the panel, and an inner end that is supported at the center of the panel by an insulating block. The neutral bracket has an inner connection member at the inner end, which is engaged by the switches. In another version, the neutral connection may be made via a neutral terminal secured to an insulating block. The terminal is engaged with an inner connection member, which in turn is engaged by the switches.
H01R 24/00 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
H01R 11/09 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations being identical
H01H 9/26 - Interlocking, locking, or latching mechanisms for interlocking two or more switches
H02B 1/20 - Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
A system and method of interlocking a plurality of electrical panel switches includes an interlock assembly having an interlock. The interlock has a first position that allows connection of one of utility power and power from an alternate power supply, such as a generator, to the electrical panel and prevents connection of the other of the utility power and generator power. The interlock has a second position that allows connection of the other of the utility power and generator power and prevents connection of one of the utility power and generator power to the electrical panel. The interlock also is constructed to control the positioning and sequence of operation of neutral connections between the power sources and the electrical panel.
An interlock assembly for use with a pair of aligned multiple switch assemblies configured to control the supply of electrical power to an electrical panel. Each multiple switch assembly includes a two-pole transfer switch for a pair of "hot" conductors, and a single-pole transfer switch for a neutral connection. The interlock assembly is movably mounted relative to both of the multiple switch assemblies, and is configured to control a sequence of connection and interruption of each neutral connection relative to switching the hot conductors associated with switching each multiple switch assembly. The interlock assembly prevents the "hot" conductors of each multiple switch assembly from being connected without the associated respective neutral connection having been made in advance. The interlock assembly also ensures that the neutral connection of each multiple switch assembly is interrupted without previous interruption of the connection of the respective "hot" conductors.
A switch assembly for an electrical panel configured to receive electrical power from either a first power supply or a second power supply. The switch assembly includes a transfer switch operable to electrically connect the panel to receive electrical power from the second power supply when power is interrupted from first power supply. An indicator light at the panel illuminates so as indicate that electrical power from the first electrical power supply is restored while the transfer switch is positioned to receive electrical power from the second electrical power supply. A light switch is connected to selectively interrupt illumination of the indicator light. An interlock member interconnects the light switch and the transfer switch so that movement of the interlock member to connect the electrical panel to receive electrical power from the first power supply simultaneously moves the light switch so as to interrupt illumination of the indicator light.
A neutral connection arrangement for use with a pair of aligned transfer switch assemblies of an electrical panel. The first transfer switch assembly is operable to regulate electrical connection of a neutral conductor of a utility service, and the second transfer switch assembly is operable to connect a neutral conductor of a generator. The neutral connection arrangement may be in the form of a neutral bracket apparatus that includes a bracket having a first mount member, a second mount member, and a third mount member. The first mount member is attached at the first neutral bus of the electrical panel, and the second mount member is attached at the second neutral bus of the electrical panel located opposite the first neutral bus. An elongated body portion electrically connects the first and second mount members. The third mount member is generally U-shaped and extends from the elongated body portion for electrical connection to the first and second transfer switch assemblies. Alternatively, the neutral bracket apparatus may have an outer end secured to one of the neutral buses of the panel, and an inner end that is supported at the center of the panel by an insulating block. The neutral bracket has an inner connection member at the inner end, which is engaged by the switches. In another version, the neutral connection may be made via a neutral terminal secured to an insulating block. The terminal is engaged with an inner connection member, which in turn is engaged by the switches.
42 - Scientific, technological and industrial services, research and design
Goods & Services
TESTING SERVICES IN THE NATURE OF CERTIFICATION TESTING OF PARTS, ASSEMBLIES AND PRODUCTS OF OTHERS FOR COMPLIANCE WITH SAFETY AND/OR PERFORMANCE STANDARDS
09 - Scientific and electric apparatus and instruments
Goods & Services
Devices or systems for providing an alert as to an actual or potential harmful or damaging situation or condition on a premises, namely sensors, transmitters, controls, recorders, lights and alarms; auxiliary power supplies and apparatus for providing, transforming, testing, connecting or otherwise facilitating the installation or use of an auxiliary power supply
