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12KV Withdrawable Vacuum Circuit Breaker Modularized Mechanism
12KV Withdrawable Vacuum Circuit Breaker Modularized Mechanism
Specifications
Brand Name :
KNKONG
Model Number :
VS1-12
Certification :
CB,ISO,IEC
Place of Origin :
China
MOQ :
1
Payment Terms :
L/C, T/T, Western Union
Supply Ability :
1000 Unit per month
Delivery Time :
15 working days
Packaging Details :
Standard export packaging
Normal Voltage :
12KV
Normal Current :
630-2000A
Breaking current :
20-25KA
Type :
withdrawable
Original :
China
Manufactory :
KNKONG-ELECTRIC
Description

VS1 12KV withdrawable vaccum circuit breaker modularized mechanism

Voltage: 12KV

Current: 630-2000A

Breaking current: 20KA

Type: withdrawable

Product overview

VS1 series circuit breakers are completely independently developed by Knkong. The modular mechanism makes installation, maintenance, testing and operation easier. Compared with traditional circuit breakers, it has more stable operation, higher safety and longer service life. It can meet the application needs of customers in 12kV and 24kV power transmission and distribution systems and is widely used in electric power, energy, petrochemical, metallurgy, manufacturing, transportation, construction, environmental protection and other industries.

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

Special service condition

For special operating conditions, please consult the manufacturer:
The site elevation does not exceed 1000m
Allows to reduce the dielectric strength of air
Reduce current carrying capacity
Provide additional ventilation for heat dissipation
Other precautions should be negotiated with the manufacturer according to section 2.2 of IEC 62271-1

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

Product tags

12kv vacuum circuit breaker

,

vacuumbcircuit breaker

,

meiden vacuum circuit breaker
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12KV Withdrawable Vacuum Circuit Breaker Modularized Mechanism

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Product Detail
Brand Name :
KNKONG
Model Number :
VS1-12
Certification :
CB,ISO,IEC
Place of Origin :
China
MOQ :
1
Payment Terms :
L/C, T/T, Western Union
Contact Supplier
12KV Withdrawable Vacuum Circuit Breaker Modularized Mechanism

Knkong Electric Co.,Ltd

Active Member
5 Years
henan, zhengzhou
Since 2012
Business Type :
Manufacturer
Main Products :
Medium Voltage Switchgear, Low Voltage Switchgear, Metal Enclosed Switchgear
Total Annual :
1000000-9000000
Employee Number :
50~100
Certification Level :
Active Member
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