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.
Selection details for VSG-12 Indoor High Voltage Vacuum Circuit Breaker with Nylon Poles (12kV VCB)
To confirm the required vacuum circuit breaker configuration for your project, include:
- Rated voltage, continuous current and short-circuit breaking current
- Fixed or withdrawable arrangement, pole spacing and cabinet dimensions
- Closing/tripping and charging-motor voltages, secondary plug and interlocking interfaces
Drawings and quotation requirements
Send the model reference, application, quantity and destination country together with the relevant drawing or existing equipment information. Confirm the selected configuration against a model-specific drawing and ratings sheet before ordering; request the applicable test documentation for your project requirements.
Request model confirmation and a technical quotation · Compare related 12kV Vacuum Circuit Breaker / Vacuum Circuit Breaker.
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