Ground Directional Overcurrent Relay, when Single Line to Ground Faults occur.
Polarization voltage is
A. Equal to the phase voltage of the system
B. equal to the voltage, zero sequence pressure of the phase that causes short-circuit grounding
C. Approximately 3 times the zero-sequence current of the phase that causes short-circuit grounding
D. Approximately 3 times the pressure of the zero sequence of the phase that causes short-circuit grounding
Show Answer
Answer: D
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