Content :

1. Introduction
HVD7 40.5KV 1600A outdoor HV AC vacuum circuit breaker VCB has many visual advantages like reasonable design, fashionable appearance, high safety and reliability, simple maintenance, long electric life. It is the ideal upgraded products of 35KV outdoor oil circuit breakers.
HVD7-40.5-1600 vacuum circuit breaker is applicable for three-phase power system of AC 50HZ. It is used to make and break the load current, overload current and short-circuit current.

2. Applicable environment
3.1 The ambient temperature should be -30degree~ +40degree(-40degree in the frosty area);
3.2 Altitude should not exceed 2000m(over 2000m is plateau type);
3.3 The wind pressure should not exceed 700Pa(equal to wind speed 34m/s);
3.4 Air pollution degree: 3, that of antifouling type: 4;
3.5 The installation site should be free from the fire, explosion, chemical corrosion and serious vibration.


1. Main technical parameters
Rated voltage: 33kv 36KV
1 minute power frequency withstand voltage, dry test: 95 kv
1 minute power frequency withstand voltage, wet test: 80 kv
Lightning impulse withstand voltage(peak value): 185 kv
Rated current: 1600A / 2000A
Rated short-circuit breaking current: 20KA, 25KA, 31.5KA
Rated short-circuit making current(peak): 50KA, 63KA, 80KA
Rated operating sequence: O-0.3s-CO-180s-CO
Rated short-time withstand current: 20KA, 25KA, 31.5KA
Rated peak withstand current: 50KA, 63KA, 80KA
Rated short-circuit duration: 4 s
Rated control voltage: AC220,110; DC220,110
Rated short-circuit breaking current break times: 20 times
Full-break time: