Neutral Earthing Resistors

 Current ratings up to 8,000 Amps
 Full compliance with ANSI-IEEE 32, Terminology and Test Procedure for Neutral Grounding Devices
 Stainless steel resistors and enclosures as standard, IP23 to IP54

 Type-tested standard designs

Main features of our grounding resistors include:

USE Co. can supply neutral earthing resistors for voltages up to 132kV and for any current and time rating. NERs are a key component of the earth fault protection scheme in the majority of medium voltage electricity generation and distribution systems.

Neutral Earthing Resistors (NERs) sometimes called Neutral Grounding Resistors are employed in medium-voltage AC distribution networks to limit the current that would flow through the neutral point of a transformer or generator in the event of an earth fault. NERs 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.