GP-NER 33kV Neutral Earthing Resistors Cabinet
GP-NER series neutral earthing resistors are applied to city electric power customer such as large-scale industrial enterprise, airport, harbor, metro ect., large generators and service power supply system in power plant, others.
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GP-NER series neutral earthing resistors are applied to city electric power customer such as large-scale industrial enterprise, airport, harbor, metro ect., large generators and service power supply system in power plant, others.
The components of GP-NER series neutral earthing resistors are made of special stainless steel electric-heat metal imported from US. They are with outstanding characters such as high temperature-resistant capability, excellent anti-oxidation performance, strong tensile characteristics, high resistivity and stable resistance value, what’s more, it can sustain electric and thermodynamic performance even under 1000℃ , which enables safe and reliable operation.
According to different connection mode or various customer requests, are can provide epoxy resin to cast dry type transformer, zero sequence current transformers, single phase disconnecting switches. Heater and thermo/humidity controllers etc.
| Voltage | 0.4kV~110kV |
| Rated current | optional |
| Nominal resistance | optional |
| Current duration | 10s, 30s, 60s, 10mins, continuous |
| Incoming and outgoing line | top in bottom out, bottom in and out, side in and out, side in bottom out, etc. |
| Installation site | Indoor/Outdoor |
| Allowable temperature rise | 760℃ for 10s, 30s, 60s and 610℃ for 10min and 385℃ for continuous |
| Zero sequence current transformer | Optional |
| Compliance | Meets international safety standards such as ISO, IEEE |
▪ Targeted, and protection in place
▪ Compact structure, easy to install
▪ Selection of sophisticated, fully guarantee the quality of products
▪ The monitoring function is complete, and provide analog output
▪ Strong technical force, courteous service
We have professional R&D team and advanced equipment. The company introduces and localizes advanced foreign technologies, and has always focused on the research, development and production of neutral earthing products which have good effect on reducing overvoltage and improving security and reliability of power systems. The company developed series of neutral earthing stainless steel resistor cabinets with import special stainless-steel alloy for 6~35kV power systems. Earthing capacitance currents in a cable power system is comparatively large.
The product is made of high quality imported stainless steel or domestic stainless steel electric metal material. It has the characteristics of high conductivity, high temperature coefficient, corrosion resistance, high temperature resistance, high oxidation resistance, high tensile strength and stable resistance. The product runs safely and reliably.
Altitude: No more than 4000m
Ambient temperature: -40°C~+60°C
Relative humidity: No more than 95% (25°C)
Installation site: There should be free of chemical etching gases, steam or explosive dust in the air
Power frequency: 48~52Hz (50Hz system), 58~62Hz (60Hz system)
Installation environment: Indoor, outdoor
Installation point of resistor: Normally the neutral point voltage displacement shall not be more than 3% of phase voltage, Special operation conditions shall be stated at the time of ordering.
GreenPower provides professional smart switchgear solutions. Contact us immediately for free consultation and quotation. Our professional team will provide you with full service and technical support throughout the process.
Email: [email protected]
Tel: +86-18989782765
Fax: 057785500968
