Introduction

Mingrui is the professional manufacture of resistor. We are engaged in the manufacturing and supplying of Neutral Earthing Resistors, which are used to limit the current flow during an earthing fault on an alternative current distribution system.The Neutral grounding resistor is applicable to 6~35kv power distribution grid of cable lines in city large

These Resistors are connected amid the neutral position of a Generator and Earth or Transformer and Earth. They are extensively used in miming, industrial installations and power distribution. These Resistors are designed to operate in harmful working conditions and environmental changes. Our products are highly appreciated for their reliability and durability. 

Application: Neutral grounding resistor to protect power transformers and generators from damaging currents in the event of earth fault.

Operation Environment

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

FAQ

Notice for purchase

1. system rated voltage(kv)
2. short-time withstand current;(A)
3. normal resistance;(Ω)
4. with current transformer or not; transformation ratio, capacity and compound deviation of the current transformer;
5. method of wiring (optional): a. wire in from the top, and out at the bottom, b. wire in and out from the bottom, c. wire in and out from the side, d. wire in from the side and out at the bottom;
6. durable time for short-time withstand current;(S)
7. material of resistance cabinet, protection grade of (IP), color code and installation site of the resistor cabinet;
8. with earth record and temperature and humidity control equipment or not