Fault processing method for power distribution network connected with ground through small resistor of oil field
A technology of distribution network fault and small resistance grounding, applied in electrical components, emergency protection circuit devices, etc., can solve the problems of low power supply reliability, unstable system operation, and oil pumping units not working normally, so as to reduce faults. The effect of reducing the scope of power outages, reducing the loss of power outages, and improving the efficiency of fault repair
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[0025] As shown in the figure, a fault handling method for an oil field distribution network grounded through a small resistance includes the following steps:
[0026] Firstly, set up the oil field distribution network. The oil field distribution network is composed of a bus connected to the power supply and a plurality of series-connected pumping units connected to the bus. Two adjacent groups of pumping units are connected through circuit breakers; pumping unit; several pumping units are preset for each pumping unit;
[0027] Secondly, when the oilfield distribution network is working normally, the generator of the terminal pumping unit provides reactive power for the terminal pumping unit, and the generators of the pumping units other than the terminal pumping unit are in hot standby state;
[0028] Again, when a fault occurs in the oilfield distribution network, find the location of the fault point; disconnect the line at the fault point by opening the circuit breaker, and...
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