Neutral Grounding Resistor
Product Description
Neutral Grounding Resistor,China
Neutral Grounding Resistors are used for resistance grounding of industrial power systems. They are usually connected between earth ground and the neutral of power transformers, power generators or artificial neutral transformers. Their main purpose is to limit the maximum fault current to a value which will not damage generating, distribution or other associated equipment in the power system, yet allow sufficient flow of fault current to operate protective relays to clear the fault.
Features & Capabilities:
- NGRs protect power transformers and generators from damaging fault currents
- Available for systems rated 240v to 127kv line-line
- Current ratings up to 20000 amps
- All NGRs designed and tested per IEEE32
- Certified test reports and installation/maintenance instructions accompany each NGR
- Standard enclosures are painted or mill-galvanized, with stainless steel, hot-dipped galvanized, and aluminum as options
- will optionally package CTs, PTs, disconnect switches, grounding transformers, and heaters in the NGR cubicle
- Technical papers on the theories of Resistance Grounding readily available
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