performance, big current capability, the operating time be long, large scale of resistance and endure heating ability, but may also combined with the current transformer to provide the simulation quantity output to the protection and the supervisory system.
The THT-FZG resistance counter as the standard product, it can combine with the resistance or the reactance parallel operation. It is convenience to increase the capacity of the small power plant.
Application Conditions
1.Using in Indoors or outdoors.
2.Ambient temperature: Not lower than -20°C and not higher than +60°C
3.The altitude above sea level does not exceed 3000 meter.
4.Relative humidity: not more than 95%(25°C).
5.Frequency of power system: 58~62Hz (for 60Hz system),48~52Hz(for 50Hz system).
6.Under the normal state, the neutral point displacement does not surpass (1~3) % of the operating phase voltage
7.The air of the installing place should not include chemical etching gas, steam, and explosive dust.
Type Structure
The THT-FZG resistor counter is made of stainless steel material, whose protection ranks IP43, the value of the resistor basis user request and can install the current transformer to measure the neutral point electric current which is offering to the protection installment.
Notice of Application
1. resistance counter should connect between the neutral of generator and earth.
2.In early power system, you could choose bigger rated resistor for the current of capacitance is small. You can use two same resistors in parallel way when you want to extend power system and even more.
3.You should consider that the maximum way of operating when emergency power supply investing before you statistical electrical power system current of capacitance.
4.You should tell us the rated voltage, resistor ,current and the ratio of current transformer.
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