NGR Neutral Grounding Resistors , NER Neutral Earthing Resistors 10KW-1MW

Neutral Grounding Resistors, Neutral Earthing Resistors, NGR, NER

Neutral Grounding Resistors, also named Neutral Earthing Resistor, It is used to limit the fault current for safety of equipment and personnel in industrial systems.

In solid grounding, the system is directly grounded and the fault current is limited only by the soil resistance. The fault current can be very high and can damage the transformers, generators, motors, wiring and other equipments in the system. The NGR are inserted between neutral and ground in order to increase the net resistance in the event of an earth fault and limit the current to a safe level.

General Features

1.Stainless-steel resistor elements
2. Bolted resistor element connections instead of welded connections providing assemble of spare parts on site immediately
3. High thermal capacity to absorb high currents
4. High altitude ratings
5. Rugged shock-resistant construction
6. Solid top cover sloped to prevent water accumulation

Technical Specifications

1. Operation Voltage : Up to 110 kV line to line systems
2. Rated Current : Up to 5000 A
3. Ambient Temperature : Up to 55℃ (For higher ambient temperature, consult factory)
4. Resistance Alloy : Stainless-steel (CrNi or CrAl)
5. Different Protection Degree according to demand

Jingdacheng Electronics(JDC) is a leading power resistors manufacturer in China, and we are always focusing on providing various resistors and loading solutions since it was established in 1997. With 24 years industry experiences, JDC has a professional team for resistor designing, manufacturing and quality control, and most of our managements have been working for JDC at least 10 years. Even approved by ISO9001:2014, JDC started proceeding a very high standard (Japan JIS) of manufacturing and quality inspection since we built a long partner cooperation with Japan IWAKI MUSEN in 2013. Now, JDC is providing many resistors and solutions for some top500 companies, Such as: Huawei, Yaskawa, Panasonic, Midea, etc.