HVD7 33KV 36kv Outdoor Vacuum Circuit Breaker VCB

1. Introduction

HVD7 33KV 36kv outdoor HV AC vacuum circuitbreaker VCB has many visual advantages like reasonable design, fashionableappearance, high safety and reliability, simple maintenance, long electriclife. It is the ideal upgraded products of 35KV outdoor oil circuit breakers.

HVD7-40.5 vacuum circuit breaker isapplicable for three-phase power system of AC 50HZ.It is used to make and breakthe load current ,overload current and short-circuit current.

2. Applicable environment

3.1The ambient temperature should be -30℃~+40℃(-40℃in the frosty area);

3.2Altitude should not exceed 2000m(over2000m is plateautype);

3.3The wind pressure should not exceed 700Pa(equal to wind speed 34m/s);

3.4Air pollution degree: Ⅲ,that of antifouling type:Ⅵ;

3.5The 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: 95kv

1 minute power frequency withstand voltage, wet test: 80kv

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: 20times

Full-break time: ≤80 ms

Mechanical life: 10,000 times