Product introduction

Generator neutral point often high resistance grounding, because it can effectively restrain the generator grounding fault current, so as to effectively prevent the generator stator burning, and can reduce the arc grounding transient voltage.

In the range of use

SH-FZ type generator neutral point resistor cabinet special in power plant generator neutral point with high resistance grounding installation. Grade of voltage is 6kV to 20Kv. when stator one point grounding, grounding current in a small numerical restrictions and effectively suppress the arc grounding transient overvoltage.

Description and composition - Product Model

Our company is free to calculate the resistance value according to the user's request.

Grounding transformer parameters

Insulation grade: H level

Temperature: less than 100K

Cooling mode: AN

Protection grade: paper insulation dry type transformer protection level is divided into IP00 (no shell), and IP20, IP23 (there is shell). Insulation level, impedance voltage, no-load loss, load loss in accordance with the corresponding national standards.

Insulation resistance test: high voltage and low voltage is greater than or equal to 300M.

Low pressure is greater than or equal to 100M.

In the use of the environment

It is suitable for indoor;

When environment temperature: not less than -40 DEG C, C is not higher than +40;

When the altitude does not exceed 3000m;

When relative humidity is less than 95% (25 C);

After the grid frequency: 58 ~ 62Hz (60Hz), 48 52Hz (50 Hz);

The air in the installation site should not contain chemical corrosion of gas and steam, no explosive dust.

The composition and structure of - Installation

SH-FZ type engine neutral point resistor cabinet is equipped with dry type single grounding transformer, resistor, isolation switch, lightning arrester and other electrical equipment, can be installed in the vicinity of the neutral point of the generator.

The SH-FZ generator neutral point resistor cabinet is equipped with a current transformer to measure the neutral point current and output the analog quantity.

In order to

In order to serve you better, please provide the following information when ordering:

Rated voltage of generator, transformer, voltage transformer, resistance value;

Insulation form of grounding transformer (dry or immersed);

Current transformer ratio;

The body color, walk the line, or walk the line.