A SECONDARY FUSION VACUUM CIRCUIT BREAKER

New Products / New Technology

The primary and secondary fused bushing circuit breaker (hereinafter referred to as“Circuit breaker”) is mainly used for AC 50Hz three-phase 12KV power system, it is used as 12 kv line segment and contact switch in city power network and 12 kv side outlet switch in medium and small sized 35 kv substations, is to achieve“Distribution automation” of the ideal switching equipment, with sub-load, load current, overload current and short-circuit current capacity. The protection CT, zero-sequence CT and zero-sequence voltage sensor with uniform parameters are characterized by wide measuring range, high measuring precision and high reliability.

THE SULFUR HEXAFLUORIDE BREAKER

New Products / New Technology

Lw36-72.5126 series outdoor high voltage Sulfur hexafluoride circuit breakers are outdoor type products, suitable for AC 50Hz in areas with altitude not exceeding 3000m, ambient temperature not lower than -30 ° C, pollution level not higher than class IV, with a maximum voltage of 126 kv. Used to cut off the rated current, fault current or transfer line, to achieve the control and protection of the power system, can also be used as a contact circuit breaker. The product uses SF6 gas as arc extinguishing and insulating medium, adopts the most advanced self-energy arc extinguishing technology in the world, and is equipped with a new type of spring operating mechanism, it has the characteristics of long electric life, low operating power, low noise, high reliability and moderate price. It can completely replace the same type of imported products.

INDOOR VACUUM CIRCUIT BREAKER

New Products / New Technology

ZN85-40.5 series indoor handcart type high voltage vacuum circuit breaker, suitable for three-phase AC 50Hz, rated voltage 40.5 kv power system, it can be used as divided and combined load current, overload current and fault current in industrial and mining enterprises, power plants and substations. The circuit breaker and operating mechanism are arranged up and down, which effectively reduces the depth of the circuit breaker. This new type of circuit breaker specially designed spring operating mechanism, installed in the circuit breaker frame, its structural characteristics are more suitable for the layout of the circuit breaker form, and become an integral part of the overall structure of the circuit breaker. The mechanism design is simple, the output curve and its performance are more suitable for the characteristics and requirements of 40.5 kv vacuum circuit breaker. The overall layout is reasonable, beautiful and concise. The utility model has the advantages of small size, flexible operation, reliable electrical performance, long service life, convenient maintenance and maintenance-free mechanism. The circuit breaker is suitable for frequent operation and various occasions and operation conditions are more stringent places.