chinese 126kv high voltage circuit breaker manufacturer china sf6 gas circuit breaker factory

150kv 145kv 132kv 126kv Sf6 Circuit Breaker using the principle of self-energy arc extinguishing, the diameter and weight of the pressure cylinder are greatly reduced, and the operating work is reduced, making the use of a spring operating mechanism a reality. Each circuit breaker consists of three single-poles and three spring mechanisms mounted on three brackets, which can perform single-pole operation and three-pole electrical linkage. The spring operating mechanism is installed on the side of the bracket, and the electrical control system is placed in the mechanism box. The upper part of the single-pole circuit breaker body is a single-break arc extinguishing chamber, the middle is the pillar porcelain sleeve, and the lower part is used for sealing, opening springs and buffers.

Working Environment：

◆Installation method: side-mounted, middle-mounted

◆Ambient air temperature: upper limit +60C, lower limit -30C; ;

◆Altitude: ≤3000m 

◆Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);

◆Amplitude: earthquake intensity 8 degrees;

◆Contamination level: Class I;

◆Maximum daily temperature difference: no more than 25C.