35kV MV Indoor Vacuum Circuit Breaker/VCB for Switchgear, VAC85-36(40.5)kV

1. General description

VAC85-36(40.5)kV/T2000A-31.5kA type indoor M.V. vacuum circuit breaker is suitable for the power system tri-phase AC 50Hz, rated voltage 36(40.5)kV, for industrial and mining enterprises power plants and substations, as the division of load current, overload current, fault current purposes.

The indoor vacuum circuit breaker is arranged with upper and lower structure, effectively reduce the depth of circuit breaker. The spring operating mechanism designed for this new type vacuum circuit breaker installing in the breaker frame, Its structure feature is more suitable for upper and lower type of vacuum circuit breaker and becomes a key part of breaker overall structure simple design, output cuive, and performance are more suitable for the characteristics and requirement of 36(40.5)kV indoor vacuum circuit breaker.

The Technical Specifications of this indoor vcb define its electrical and mechanical parameters for high-voltage indoor switchgear applications. The vacuum circuit breaker model VAC85-36(40.5)kV is suitable for power system three-phase AC 50Hz with rated voltage of 36(40.5)kV, designed for industrial and mining enterprises, power plants, and substations for the division of load current, overload current, and fault current purposes. This mv switchgear switch features an upper and lower structure arrangement that effectively reduces the breaker depth, making it ideal for space-constrained switchgear installations. The indoor vacuum circuit breaker incorporates a spring operating mechanism designed specifically for this new type of vacuum circuit breaker, installed in the breaker frame with structural features more suitable for upper and lower configurations. This indoor vcb offers rated currents of 1250A, 1600A, and 2000A, with rated insulation level of 95kV power frequency withstand voltage and 185kV lightning impulse withstand voltage. Each vacuum circuit breaker undergoes comprehensive testing to ensure reliable performance. Proper installation of this indoor vacuum circuit breaker ensures safe and dependable operation in 35kV class distribution networks.

2. Main technical parameter

3.After the overall adjustment of the circuit breaker,it shall meet the parameter requirements listed in Table II: