VSG 12kV Indoor Vacuum Circuit Breaker

Description

VSG 12kV Indoor Vacuum Circuit Breaker Overview

The VSG is a three-phase AC 50 Hz indoor vacuum circuit breaker for 12 kV power systems. The existing page describes fixed and withdrawable installation options, a modular integrated spring operating mechanism, and an optional sealed-pole primary circuit.

The page identifies switching and protection of normal load and fault current as intended duties. Final current and short-circuit ratings are not consistently documented in the current body, so they should be confirmed for the selected configuration rather than inferred from generic range text.

Operating Conditions

• Ambient temperature: -10°C to 40°C
• Maximum daily average relative humidity: 95%
• Maximum monthly average relative humidity: 90%
• Maximum daily average saturated vapor pressure: 2.2 kPa
• Maximum monthly average saturated vapor pressure: 1.8 kPa
• Maximum altitude: 1,000 m unless otherwise specified
• Maximum earthquake intensity: 8
• No fire, explosion, severe contamination, chemical corrosion, or violent vibration

Configuration Points

• Installation form: fixed or withdrawable
• Operating mechanism: integrated modular spring mechanism
• Primary-circuit option: sealed pole as described on the existing page
• System: three-phase AC 50 Hz, 12 kV

Selection Guidance

Confirm the rated current, prospective short-circuit current, operating sequence, installation form, switchgear interface, control voltage, auxiliary contacts, and site conditions. These values must be matched as one tested configuration.

Information for an Inquiry

Provide the required current and fault level, fixed or withdrawable arrangement, operating sequence, switchgear model, control voltage, auxiliary-contact requirement, altitude, humidity, and seismic requirement.

FAQ

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