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VCB 12KV 630A Vacuum Withdrawable Circuit Breaker High Stability

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VCB 12KV 630A Vacuum Withdrawable Circuit Breaker High Stability

VCB 12KV 630A Vacuum Withdrawable Circuit Breaker High Stability
VCB 12KV 630A Vacuum Withdrawable Circuit Breaker High Stability

Large Image :  VCB 12KV 630A Vacuum Withdrawable Circuit Breaker High Stability

Product Details:
Place of Origin: China
Brand Name: KNKONG
Certification: CB,ISO,IEC
Model Number: VS1-12
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: Standard export packaging
Delivery Time: 15 working days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 1000 Unit per month

VCB 12KV 630A Vacuum Withdrawable Circuit Breaker High Stability

Description
Voltage: From 12KV To 24KV Current: From 630A To 2000A
Breaking Current: 25KA Max Type: Withdrawable
Standard: GB,ISO,IEC Manufactory: KNKONG-ELECTRIC
High Light:

630A Vacuum Withdrawable Circuit Breaker

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VCB Withdrawable Circuit Breaker

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12KV Withdrawable Circuit Breaker

VCB 12KV 630A VS1 series vacuum circuit breaker withdrawable type

Voltage: 12KV

Current: 630A

Breaking current: 25KA

Type: withdrawable

 

 

 

VS1-Series circuit breaker features high stability and high reliability

From the operating mechanism, the transmission components of the VS1 series vacuum circuit breakers have been optimized. The modular spring mechanism is easy to maintain in use, the repair time is shorter after power failure, the parts are more versatile, and the compatibility with the vacuum interrupter is better, which greatly improves the performance of the equipment.

 

Normal service condition

Altitude ≤1000m
Ambient temperature Max +40℃
Min -15℃

Ambient humidity:

Maximum average humidity

24 hours ≤95%
1 month ≤90%
Maximum water vapor pressure 24 hours ≤2.2kpa
1 month ≤1.8kpa

 

Technical Parameters

No. Item Unit Parameter
1 Rated voltage KV 12
2 Rated frequency Hz 50/60
3

 

Rated insulation level

1min power frequency withstand voltage(r. m. s)

 

KV

42(phase-to-phase, phase-to-earth)

48(across the isolating distance)

Lighting impulse withstand voltage (peak)

75(phase-to-phase, phase-to-earth)

85(across the isolating distance)

 

 

4

 

 

Rated current

 

 

A

630 630 1250 1600
1250 1250 1600 2000
    2000 2500
    2500 3150
      4000
5 Rated short-circuit breaking current

 

KA

20 25 31.5 40
6 Rated short-time withstand current 20 25 31.5 40
7 Rated short-circuit marking current 50 63 80 100
8 Rated peak withstand current 50 63 80 100
9 Rated duration of short-circuit s 4
10 Rated operating sequence   O-0.3s-O/C-180s-O/C
11 Breaking times of rated short-circuit current Times 30/20 times(40KA)
12 Mechanical endurance Ops 20000
13 Rated single capacitor bank breaking current

 

A

630
14 Rated back-to-back capacitor bank breaking current 400
15 Double-earth fault breaking current 27.4
16 Allowable maximum contact erosion

 

mm

3
17 Clearance between open contacts 10±1
18 Over stroke 3.5±0.5
19 Non-simultaneity of 3-phase opening and closing

ms

 

≤2
20 Bounce duration of contact closing ≤2
21 Average breaking speed (instant breaking 6mm)

m/s

 

1.1±0.2
22 Average making speed 0.8±0.2
23 Making time

ms

 

≤100
24 Breaking time ≤50

 

 

25

 

Resistance of each phase main circuit

 

μ Ω

630A ≤50
1250A ≤45
1600A~2000A ≤35
≥2500A ≤25
26 Contact breaking bounce amplitude mm ≤2

 

27

Rated operating voltage Rated operating voltage(V)AC/DC

 

V

24* 110 220
Scope of normal operation voltage Opening:65%-120% rated voltage, in case the voltage is lower than 30% rated voltage, opening operation is not allowed
28 Rated voltage of energy storage motor V AC110/220,DC110/220
29 Energy storage time S ≤15

 

VCB 12KV 630A Vacuum Withdrawable Circuit Breaker High Stability 0

Contact Details
Knkong Electric Co.,Ltd

Contact Person: Antonio

Tel: +8613607680651

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