11kV 3 Phase Drawout VCB, Vacuum Circuit Breaker (IEC)

11kV 3 Phase Drawout VCB, Vacuum Circuit Breaker (IEC)

VYG series vacuum circuit breakers are widely used in power plants, substations, petrochemical plants, metallurgical industries, mining, manufacturing industry, airport, subway, seaport and residential areas, etc.

VYG series vacuum circuit breakers can be integrated into air insulated switchgear(our KYN28 series metal-clad switchgear), a perfect replacement for the sleeve type air insulated vacuum circuit breaker.

VYG series vacuum circuit breakers can run stably under following conditions:

Altitude: 1000m

While application at 1000m and above, please specify your conditions.

 Ambient temperature:

Max:  +40℃       Min.: -15℃             Daily average:≤+35℃

Humidity:        Daily average RH:95%             Monthly average RH:90%

Daily average saturated vapor pressure:       ≤2.2×10-3Mpa

Monthly average saturated vapor pressure:     ≤1.8×10-3Mpa

Earthquake withstand ability:     not exceed         Grade 8

Horizontal acceleration:

Synthetic seismic wave      0.25g

Sinusoidal wave                   0.15g

 VYG series full encapsulation solid insulated vacuum circuit breakers, adopt the first full encapsulation structure and the latest solid insulating technology in the world, are in real sense solid insulated vacuum circuit breakers with high performance. 

Internal structure of embedded pole is isolated from outside environment, not subject to ambient factors, such as dust, pollution, moisture or condensation, etc. The embedded pole is maintenance free. VYG series has high environmental adaptability and can run in adverse conditions.

With high performance, VYG series meet Class C2-E2-M2 requirements of Chinese National Standard GB1984-2003 and International Standard IEC62271-100, and other relevant standards.

VYG series has a full range of ratings and dimensions to meet different demand in industry.

The embedded pole of VYG series are made by special VULCANIZE process to create a cushion between the vacuum interrupter and the epoxy resin, ensuring a high reliability of the embedded poles.

VYG series adopts advanced solid insulating technology for outer insulation of its vacuum interrupter, making it environmentally friendly.

Technical Data

Outline Dimension