Circuit Breaker

Vs1-12 Medium Voltage Fixed Type Insulation Cylinder Vacuum Circuit Breaker Vcb Panel

Product Name:
VS1(ZN63A)-12

Description:

VS1-12 indoor high voltage vacuum circuit breaker applies to power system of rated voltage 12kv as a protective and control unit for power grid equipment and industrial power equipment. It can equip with KYN28(GZS1), XGN, GG-1A and other types of switchgear panels. Related products: isolated handcart, fuse handcart and voltage transformer handcart.

VS1-12 series of indoor vacuum breaker with common insulated cylinder is three-phrase A.C. 50 Hz indoor power distribution equipment with the rated voltage of 12KV. It’ s used for protecting controlling the electrical equipment in the fields of industry and mining enterprise, power plants and substation.This type vacuum circuit breaker conforms to national standards and the stipulation of IEC standard, the capability reaches grade of M2-E2-C2.
The product adopts composite insulation way,spring charged operation and rod push mechanism,with the characteristics of small volume, compact design and reliable operation. It can easily match with the switchgear and meet the “Five Preventions” demands.
This kind of vacuum circuit breaker can be used for many kinds of switchgear like KYN28(GZS1). This series of products include:VCB truck isolation truck and Fuse truck, etc.

Applying Ambient Conditions:
1. Ambient temperature: -10℃–+40℃
2. Ambient humidity: the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%;
3. Earthquake intensity: not exceed 8 degrees
4. Saturated vapor pressure: average pressure of a day should be no more than2. 2kPa,the average pressure of a month should be no more than 1.8kPa;
5.The height above sea level: less than 1000m;(not including special requirements)
6.1t should be installed in the places without fire, explosion, serious filth, chemical corrosion and violent VS1 ration.

Technical Parameters

No. Item Unit Data
1 Rated voltage kV 12
2 Rated frequency Hz 50
3 Rated insulation level 1min power frequency withstand voltage kV 42
Rated lightning impulse withstand voltage kV 75
4 Rated current A 630/1000/1250/1600/2000/ 2500/3150/4000
5   Rated short circuit breaking current Rated short-time withstand current (virtual value) kA   20/25/31.5/40/50
6   Rated short circuit making current  Dynamic stability rated current kA   50/63/80/100/125
7   Rated short-circuit breaking current breaking time Times   (above 40kA)
8   Rated short-circuit duration S   4
9 Rated operation sequence   O-0. 3s-CO-180s-CO, O-180s-CO-180s-CO(above 40kA)
10  Mechanical life Times  30000
11 Rated breaking current of single capacitor bank A 630
12 Rated breaking current of back to back capacitor bank A 400
13 Maximum D.C componen   50%
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