Capacitive grounding current distributed compensation method and device for medium-voltage power supply system
A technology of ground capacitance current and decentralized compensation, which is applied in the direction of emergency protection circuit devices, circuit devices, emergency protection circuit devices, etc. for limiting overcurrent/overvoltage, can solve the problems of low power supply reliability and achieve continuous solutions The effect of increasing capacity, reducing generation and development, and ensuring reliability
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[0017] Dispersely install the decentralized compensation ground capacitance current transformer on the line with relatively large ground capacitance current in the system. The decentralized compensation ground capacitance current transformer installed on each line only compensates the ground capacitance current of the line where it is located, and the compensation capacity is The ground-to-ground capacitance current of the line is 1.1 times, and the sum of the ground-to-ground capacitance current of the entire grid decentralized compensation is 40-60% of the system's ground-to-ground capacitance current, and the rest is comprehensively compensated through the arc suppression device of the substation.
[0018] The device that realizes above-mentioned technical scheme of the present invention to take is:
[0019] The substation is connected with the arc-suppressing coil for centralized compensation of the substation, and the decentralized compensation ground capacitance current t...
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