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Product Details:
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| Voltage: | 12KV | Current: | 2000A |
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| Breaking Current: | 20-25KA | Type: | Fixed |
| Standard: | GB,IEC,ISO | Manufactory: | KNKONG |
| High Light: | 20KA Breaking VCB Circuit Breaker,IEC Indoor Switchgear VCB Circuit Breaker,2000A Fixed Circuit Breaker |
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12KV 2000A fixed type indoor VCB 205 phase spacing VS1-12
Voltage: 12KV
Current: 2000A
Breaking current: 20KA
Type: Fixed
Phase spacing: 205
Product overview
The vacuum circuit breaker is suitable for 12kV, three-phase AC 50Hz indoor switchgear, and can be used as a protection and control unit for substation equipment in industrial and mining enterprises. The spring operating mechanism of VS1 series circuit breaker adopts modular and independent frame design, which can be operated with KYN28-12(24) central and fixed switchgear. These circuit breakers can be fixedly installed or assembled with a truck as a trolley unit
VS1-Series circuit breakers are Class M2.c2 and E2 model
Vs1-Series circuit breaker is available for the environment. Maintenance-free and capable of frequent operation. Compared with traditional circuit breaker products. These breakers have their mechanical endurance raised to 20 000 ops from 10, 000 ops with an enormous improvement. The type test for capacitive current breaking shows an extraordinarily low restrike probability. These products feature prolonged electrical endurance and free maintenance.
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) |
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| Lighting impulse withstand voltage (peak) |
75(phase-to-phase, phase-to-earth) 85(across the isolating distance) |
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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
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≤2 | ||||||
| 20 | Bounce duration of contact closing | ≤2 | |||||||
| 21 | Average breaking speed (instant breaking 6mm) |
m/s
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1.1±0.2 | ||||||
| 22 | Average making speed | 0.8±0.2 | |||||||
| 23 | Making time |
ms
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≤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 | ||||||
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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 | ||||||
Contact Person: Antonio
Tel: +8613607680651
