Withdrawable Circuit Breaker for Kyn-28A

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Both Manual and Motorized
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Removable
• Structure: Withdrawable
• Model NO.: VSG
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Certification: ISO9001-2000
• Transport Package: Wooden Case
• Trademark: GRENO
• Origin: Xiamen, China
• Production Capacity: 5000PCS

Product Description

Withdrawable Circuit Breaker for Kyn-28A

VSG series vacuum circuit breakers, adopt the first full encapsulation structure and the latest technology in the world, are in real sense 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. VSG series has high environmental adaptability and can run in adverse conditions.

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

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

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

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

APPLICATION

VSG 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.

VSG series vacuum circuit breakers can be integrated into air insulated switchgears, a perfect replacement for the sleeve type air insulated vacuum circuit breaker.

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

1. Ambient temperature:

    Max:                                                                   +40°C

    Daily average:                                                 ≤+35°C

    Min.:                                                                   -15°C

2. 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

3. Earthquake withstand ability: not exceed Grade 8

    Horizontal acceleration:

    Synthetic seismic wave                                      0.25g

    Sinusoidal wave                                                   0.15g

TECHNICAL FEATURES

Excellent performance

• Electrical life: in compliance with Class E2 of circuit breaker, 274 operations in various short circuit currents.
• Capacitive current making/breaking capacity: Class C2, rated single/back to back capacitor bank breaking current 630/400 A
• Rated voltages:12kV

• 1. Professional manufacturer, high quality assurance.
• 2. Honesty on workmanship and materials.
• 3. Mature Technology
  4. Complete product range 
  5. Large investment in R&D,never stop upgrading products.
  6. Advanced assembly line with skillful stable workers.