Neutral grounding resistor enclosure(NGR) for transformer or generator

The NGR or NER used for the neutral point of transformer in 6-35kV system to realize grounding by resistors to avoide damage. Type: THT-ZTProduct use: This product used for the neutral point of transformer in 6-35KV system to realize grounding through resistors in the power system to avoid the damage when the earth fault current occurs..The resistors can adopt stainless steel or nickel-chromium alloy, featuring high conductivity and high temperature resistance, with the maximum applicable temperature up to 1,400°C, small temperature coefficient, stable resistance value, corrosion resistance, flame-proof and explosion-proof performance and high reliability. Our company can provide U.S.-made resistor discs depending on customers’ requirements.Depending on different use conditions, the resistor cabinets can be divided into indoor and outdoor-type ones. The in-line method can adopt up-in - down-out and down-in-down-out, etc., and the cabinet top is equipped with through-wall casing pipes when the up-in-down-out method is adopted. In addition, the cabinet is equipped with special lifting devices.As a standard product, the THT-ZT-type neutral grounding resistor cabinet can run with resistors or reactance in parallel, able to satisfy the requirements of ever-increasing of power grids and ever-decreasing of grounding resistance.

Ambient temperature: -40°C~60°C

Altitude: less than 4000m

Relative humidity: less than 95% (25°C)

Codes and standards: IEEE-32 ,DL/T 780-2001

Rated frequency: 50/60HZ

Location: outdoor/indoor

Enclosure: aluminum-zinc plates, stainless steel plates or cold-rolled steel plates according to your requirements.

Resistor material: stainless steel

Degree of protection: design as required

Neutral grounding resistor enclosure(NGR) for transformer or generator