ZW30-40.5 series outdoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz high-voltage switchgear mainly used for control and protection of 40.5KV power transmission and transformation systems. It can also be used for normal operation and short-circuit protection of multiple power grids and industrial and mining enterprises, and can be used as a connecting circuit breaker and for opening and closing capacitor groups.

ZW30-40.5 outdoor high-voltage vacuum circuit breaker is equipped with CT17-IVB spring energy storage operating mechanism, which can remotely control electric energy storage, electric opening and closing operations, as well as on-site manual energy storage, manual opening and closing operations.
Advantages:
Three column structure, small footprint, small volume, and light weight;  
It can carry 6 outdoor current transformers, and the measurement accuracy of the transformers can reach 0.2 and 0.2S levels, and the protection accuracy can be 5P and 10P levels;  
Can avoid the trouble of disassembling the circuit breaker when the current transformer fails;  
The creepage distance of porcelain bottles is 3.1 cm/kV, suitable for any area with an altitude of 3000 meters (Class II polluted area) or 1000 meters (Class IV polluted area) and below.  

Mechanical characteristic parameters of ZW30-40.5 outdoor high-voltage vacuum circuit breaker:

ZW30-40.5 Outdoor High Voltage Vacuum Circuit Breaker