VSG-12 Indoor High Voltage Vacuum Circuit Breaker with Nylon Poles (12kV VCB)
VSG-12 series indoor high voltage vacuum circuit breaker is an advanced switchgear designed for 12kV triphase AC 50Hz power systems. Featuring a specialized nylon pole (nylon tube) construction, this 12kV VCB offers superior insulation reliability and mechanical stability in demanding environments.
VSG-12 Indoor High Voltage Vacuum Circuit Breaker with Nylon Poles
Product Overview
The VSG-12 series is a high-performance indoor vacuum circuit breaker (VCB) designed for three-phase AC 50Hz power systems with a rated voltage of 12kV. Featuring an advanced nylon pole (nylon tube) construction, this breaker ensures superior insulation reliability and mechanical stability.
It is a premier choice for the protection and control of electrical equipment in power plants, substations, and industrial and mining enterprises. The VSG-12 is highly compatible with various fixed-type medium voltage cabinets, including GG-1A(Z) and XGN2-12(Z).
Key Features
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Enhanced Insulation: Utilizes specialized nylon poles to provide excellent dielectric strength and stable operation.
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Standard Compliance: Fully accords with the GB 1984 standard for High Voltage AC Vacuum Circuit Breakers.
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Versatile Operation: Can be equipped with CT17 or CT19 model spring energy store operating devices, or CD17/CD10A model DC magnetic operating devices.
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Integrated Design: The frame structure houses the vacuum interrupters and operating mechanism, ensuring a compact and robust build for long-term service.
Technical Specifications & Application Environment
To ensure safe and reliable operation, the VSG-12 must be used within the following parameters:
| Parameter | Requirement |
| Ambient Temperature | -25°C to +40°C |
| Altitude | ≤ 1000 meters |
| Relative Humidity | Daily average ≤ 95%; Monthly average ≤ 90% |
| Saturated Vapor Pressure | Daily average ≤ 2.2kPa; Monthly average ≤ 1.8kPa |
| Earthquake Intensity | Not exceeding 8 degrees |
Installation Requirements
The installation site must be free from the following:
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Fire or explosion hazards.
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Serious filth or conductive dust (heavy pollution).
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Chemical erosion or corrosive gases.
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Violent or severe mechanical vibration.
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