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  • VS1-12KV,fixed type (2)
  • VS1-12KV,fixed type (3)
medium voltage vacuum circuit breaker
VS1-12KV,fixed type (2)
VS1-12KV,fixed type (3)

VS1-12 Fixed type high voltage vacuum circuit breaker VCB

Model: VS1-12

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.

Outstanding Features Make You Stand Out

We play extreme caution to quality and utmost attention to detail, which makes our products so perfect.

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    Modularization of Functional Unit

    The main circuit unit and running product are coherent in interchangeability.

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    Strong Versatility

    The operating mechanism can be separated from the whole circuit breaker for convenient and easy maintenance and fix.

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    Low Maintenance

    No need of adjustment of driving unit; long-acting lubricating, reliable corrosion resistance, and high mechanical stability make low maintenance possible.

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    Long-acting Lubricating

    We apply German lubricating grease boasting lower starting torsion, stronger anti-aging and oxidation resistance.

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    Strong Corrosion Resistance

    Utilizing zinc-nickel alloy plating line with a German process to make sure our corrosion resistance is 5 to 7 times stronger than ordinary zinc-plating process.

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    Strong Expandability

    This product can easily realize diverse arrangements and combinations to meet functions like expandability and control.

  • Product Detail
  • Technical Parameters
  • Technical Drawings

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.
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%
Drawing

VS1-12KV,fixed type

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