Baoding MingRui Optoelectronics Technology Co.,Ltd

Neutral Grounding Resistors are employed in medium-voltage AC distribution networks to limi the current that would flow through the neutral point of a transformer or generator in the event of an earth fault. NGRs 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. Features of all Mingrui grounding resistors include: Current ratings up to 2,000 Amps Full compliance with ANSI-IEEE32, Terminology and Test Procedure for Neutral Grounding Devices Stainless steel resistors and enclosures as standard Type-tested standard designs Options include: Supply of resistors banks only for incorporation into customers’ own enclosure Shock tested marine designs Provision of CTs, heaters, special cabling, etc. Interlocked off-load by pass isolators Single or multiple vacuum contactors Mingrui manufactures neutral grounding resistors for voltages up to 36kV and for any current and time rating. NGRs are a key component of the earth fault protection scheme in the majority of medium voltage electricity generation and distribution systems.