A single-phase ground fault automatic processing method and processing system
A single-phase ground fault, automatic processing technology, applied in the direction of instruments, short-circuit testing, emergency protection circuit devices, etc., can solve the problems that the current characteristics of single-phase ground fault are not as good as short-circuit between phases, detection difficulties, interference, etc., and achieve obvious electrical characteristics , easy maintenance and high accuracy
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[0028] see Figure 1a-Figure 1c As shown, the single-phase-to-ground fault automatic processing system using the disturbance of the faulty phase-to-ground switch switching process includes a faulty phase-to-ground arc extinguishing device configured on the substation busbar and a terminal configured along the distribution line. The terminal is internally integrated for Module 1 for realizing the incremental principle of faulty phase-to-ground and module 2 for realizing the incremental principle of faulty phase-to-ground disconnection.
[0029] Among them, the fault phase grounding type arc extinguishing device configured on the busbar of the substation includes a fault phase separation phase grounding switch, a neutral point neutral resistor and its switching switch, and the neutral point neutral resistance R and its switching switch K are connected in series to form The branch circuit of the fault phase is connected in parallel with the phase separation and grounding switch o...
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