Single-phase grounding in the operation of the generator, is the most common fault, fault point in arc grounding will further expａnd the stator winding insulation damage and even lead to core burn sintering, such as not timely detection and rapid resection, or interturn short circuit fault will become alternate with. Based on the above reasons, the widespread adoption of generator neutral point of high resistance grounding, grounding to limit the current, avoid the harm of various overvoltage, achieved good operating experience.

Neutral point via resistance grounding mode in the 1990 s used in the distribution network system in our country, has been widely used in urban power supply system, power plants, subways, metallurgy, petrochemical systems, etc.

Enuoer Electric focused on power neutral protection device, over voltage protection device and the development of relay protection device, the introduction, in the 90's and digesting foreign advanced technology, using imported special stainless steel alloy resistance, R & D and production of the ENR-FNR series of generator neutral grounding resistor cabinet of neutral grounding resistor of complete sets of equipment, is the first domestic resistance R & D, production of neutral point in power system device manufacturers. ENR-FNR series generator neutral grounding resistance of complete sets of equipment in the thermal and electrical performance, fully able to meet the electricity neutral requirement for the equipment, can withstａnd high temperature, high resistivity, temperature coefficient of resistance is small, and has high tensile strength, good toughness and excellent mechanical properties, is 0.4KV ~ 35KV turbine uses special equipment of high resistance grounding. At present, our company production of this kind of device has been widely applied in city power supply system, power plant, metallurgy and petrochemical, subway system, operating experience accumulated a lot of successful, for the good effect to improve the reliability, security system.

Ordering instructions

When placing order, please let us know the following parameters:

1.the system of rated voltage (kV);

2.short-term allow current (A);

3.nominal resistance (Ω);

4.short flow time allow (S);

5.grounding variable volume (if necessary) : (kVA) (or short allow current: A);

6.shell forms: indoor or outdoor.

7.cabinet put oneself in another's material: cold rolled steel or stainless steel;

8.shell color: according to user requirements, such as no special requirements, use computer grey;

9.into the outlet mode: top down out, down into the bottom out, side in side out, side in bottom out, customers can choose;

10.whether contained in to zero sequence CT: CT ratio and capacity. Note: customers have other requirements can be in an interview with order or provide a written request.