A widely utilised approach to managing fault currents is the installation of neutral earthing resistors (NERs). NERs, sometimes called Neutral Grounding Resistors, are used in an AC distribution networks to limit transient overvoltages that flow through the neutral point of a transformer or generator to a safe value during a fault event.
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Ampcontrol’s neutral earthing resistors (NERs) protect vital equipment such as switchgear, generators and transformers from damage in the event of faults in AC distribution systems.