250amp mccb with factory direct price Factory outlet
US $5.67-$6.25
12kv 17kv 22kv 24kv 630a indoor electric vacuum circuit breaker vd4
- Category: Circuit Breakers >>>
- Supplier: Yueqing,Liyond,Electric,Co.,Ltd.,[Zhejiang,China]Yueqing
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Product Overview
Description
VS1 vacuum circuit breaker(VCB) with insulated cylinder
Description:
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.
Description:
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.
Products with special requirements, specifications and dimensions that need to be improved can be designed and manufactured according to user requirements.
Product Paramenters
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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