resistant neutral earting syste
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resistant neutral earting syste
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Neutral Earthing Resistors (NERs) are one of the commonest types of earthing systems in medium-voltage AC distribution networks.
Neutral Earthing Resistors
Neutral Earthing Resistors (NERs) are one of the commonest types of earthing systems in medium-voltage AC distribution networks. Also called Neutral Grounding Resistors, they limit the current that would flow through the neutral point of a transformer or generator in the event of an earth fault. Earthing resistors limit fault currents to a value that does not cause any further damage to switchgear, generators or transformers beyond what has already been caused by the fault itself.
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