In one aspect, the present invention discloses a system measuring fluid flow from one location to another location for a hydro-turbine electric power plant system comprising a fluid source connected to a trash rack structure, an intake structure, an air ventilation structure and at least one conduit, the assembly comprising: a plurality of sensors disposed at differing locations from the fluid source and the fluid flow through the conduit; at least one sensor disposed adjacent to a downstream area of the fluid flow and one sensor adjacent to the intake structure; a processor adapted for receiving data from the sensing means and generating at least an output related to the turbine discharge; wherein; the measured differential head provided by at least one of the means is used to determine fluid discharge at the air ventilation structure and entire flow inside the conduit; and data collected by all sensing means is used to determine the turbine discharge.
KOREA ELECTRIC POWER CORPORATION (Republic of Korea)
TNB RESEARCH SDN. BHD. (Malaysia)
Inventor
Park, Myung-Soo
Kim, Bum-Shin
Kang, Yeon-Kwan
Im, Hyeon-Soo
Lim, Mook-Tzeng
Ng, Guat-Peng
Abstract
The present invention relates to a palm by-product pretreatment system comprising: a washing tank for settling palm by-products in washing water to wash the palm by-products; a washing water supply means for supplying washing water into the washing tank; a conveyor for moving the palm by-products in the washing tank; a recirculation water buffer tank for storing recirculation water that has been used to wash the palm by-products; and a recirculation water supply means for resupplying the recirculation water into the washing tank.
In one aspect, the present invention discloses an impulse hydro turbine comprising: a rotatable turbine wheel mounted to a shaft comprising a rim to which a plurality of buckets being attached radially, the buckets being spaced apart from each other and distributed on said rim at a predetermined distance; at least one nozzle means spaced from the turbine wheel, the nozzle means having an opening for discharging jet stream of water towards the turbine wheel; wherein: the nozzle's opening is non-circular shape and producing a narrow jet stream thickness as it travels across the bucket to the opposite side. Further, the hydro turbine in accordance with the preferred embodiments of the present invention has smallest bucket area of contact for every kJ/s of the delivered kinetic power of the nozzle jet stream and the highest deflected jet stream angle relative to the bucket tangential velocity among the impulse hydro turbines; hence ultimately it will be able to improve turbine output and turbine efficiency of the impulse hydro turbines.
F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
F01D 1/16 - Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor characterised by having both reaction stages and impulse stages
4.
SYSTEM AND METHOD FOR DETERMINING QUALITY OF POWER CABLE INSULATION USING TANGENT DELTA MEASUREMENT
The present invention relates to an improved system and method for determining quality of power cable insulation using tangent delta measurement. The system (100) comprises a grounded enclosure (101), a power cable (102), a voltage source (104), a power amplifier (103), a current monitor (105) and an oscilloscope (106). The power cable (102) and the power amplifier (103) is contained in the grounded enclosure (101) and are interconnected to the voltage source (104), the current monitor (105), the oscilloscope (106) and the voltage probe (107) during testing. The present invention utilizes an input signal of low voltage and high frequency generated from and amplified by the voltage source (104) and the power amplifier (103) respectively, as well as short power cable samples for determining the quality of the power cable (102) insulation through tangent delta measurement based on an output signal obtained. The present invention also provides a method for determining quality of power cable insulation through an input signal generated and amplified by the voltage source (104) and the power amplifier (103) respectively.
G01R 31/12 - Testing dielectric strength or breakdown voltage
G01R 27/26 - Measuring inductance or capacitanceMeasuring quality factor, e.g. by using the resonance methodMeasuring loss factorMeasuring dielectric constants
5.
AN IONIZATION DEVICE WITH VARIABLE HOLDING MECHANISMS FOR GASES OR AIR TREATMENT SYSTEMS
There is disclosed in one aspect, an ionization device 100 which is a non-thermal plasma ionization device for air, a mixture of different gases or flue gas treatment systems; the device comprising: at least one grounded electrode 101 comprising an inner surface; at least one live electrode 102 adapted to be retained within the first electrode for inducing dielectrical discharge; a dielectric barrier 103 positioned in a 10 manner such that it is enveloping the live electrode means; a holder 104 comprising a plurality of retainers sized to receive and hold the live electrode 102 within the grounded electrode 101; and is adapted to be removably secured to the grounded electrode 101; whereby the surface of the barrier is separated from the electrode thereby forming a space there between for non-thermal plasma region; 15 and forming a pathway for receiving air to be treated.
The present invention provides a method (100, 200) for obtaining failure prognostic information of electrical power equipment based on degradation of dielectric insulation fluid that is immersed in components of said power equipment that include electrical windings and tap-changers comprising a step (107) of computing a rate of change with respect to time of each of a plurality of sets of tertiary (106a, 106b, 106c) and secondary (105a, 105b, 105c) first order chromatic parameters obtained for a plurality of time instances and which have been grouped according to parameter type of insulation fluid degradation, such as "Dissolved Gas Analysis (DGA)", "Acidity, Water Content, Dielectric Strength (AWD)" and a step (108) of assigning scores to said plurality of sets of tertiary (106a, 106b, 106c) and secondary (105a. 105b, 105c) first order chromatic parameters at said plurality of time instances and the rate of change with respect to time of said sets of tertiary (106a, 106b, 106c) and secondary (105a, 105b, 105c) first order chromatic parameters.
According to the present invention, there is provided a method to minimize human intervention during decision making process while controlling the electrical power system by identifying the initiating element that cause a tripping of the transmission overhead lines and capable of identifying the potential future protection system failures that can initiate a cascading of tripping or total national blackout. A method of producing flashover analysis signal as a protection system analysis comprising processing a neutral current (7), three phase current profile (4, 5, 6), three phase voltage profile (1, 2, 3), and a plurality of digital signal (8) of a transmission line using an artificial neural network to calculate pickup time, reset time, DEF confirmation time or total fault clearance time. A method of producing flashover analysis signal comprising as a flashover signature analysis (50) to identify the cause of the flashover as a current transformer explosion (39), tree encroachment (41 ), crane (44), lightning strike (47) or polluted insulator (46).
G01R 31/08 - Locating faults in cables, transmission lines, or networks
H02H 7/26 - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
G01R 31/12 - Testing dielectric strength or breakdown voltage
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