neutral grounding

Choosing Between Resistor and Reactor for Neutral Ground Impedance

Ground Fault Current Path

Faults involving ground produce high fault current magnitude especially when the transformer(s) neutral is solidly grounded. The neutral ground circuit in the transformer provides the return path for the fault currents. To limit this current, impedance – either in the form of a reactor or a resistor – is installed in the neutral circuit. See …

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