Knkong Electric Co.,Ltd
| 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 | 12-24KV |
| normal current | 630-2000A |
| Breaking | max 25KA |
| Type | withdrawable/fixed |
| Original | Zhengzhou, CHINA |
| Manufactory | KNKONG-ELECTRIC |
| Brand Name | KNKONG |
| Model Number | VS1-12 |
| Certification | CB,ISO,IEC |
| Place of Origin | China |
View Detail Information
Explore similar products
20KA Alternating Withdrawable VCB Circuit Breaker 12KV
Embedded Pole VCB Circuit Breaker 2000A 12KV For Transformer Substation
2000A 12KV Withdrawable Circuit Breaker Modularized Mechanism
Fixed Type 205 Phase Spacing VCB Circuit Breaker Environmental Protection
Product Specification
| 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 | 12-24KV | normal current | 630-2000A |
| Breaking | max 25KA | Type | withdrawable/fixed |
| Original | Zhengzhou, CHINA | Manufactory | KNKONG-ELECTRIC |
| Brand Name | KNKONG | Model Number | VS1-12 |
| Certification | CB,ISO,IEC | Place of Origin | China |
| High Light | Embedded Pole Vacuum Circuit Breaker ，2000A Vacuum DC Circuit Breaker Modular ，25KA Fixed DC Circuit Breaker | ||
VS1 series embedded Pole type vacuum circuit breaker by modular design OEM available
Voltage: 12-24KV
Current: 630-2000A
Breaking current: MAX 25KA
Type: withdrawable/Fixed
Product overview
Our VS1 vacuum circuit breaker was independently developed by Knkong-electric.
Its high-performance brake buffer can significantly reduce the overshoot and rebound amplitude caused by the moving contact of the VS1 vacuum circuit breaker during breaking, and avoid the overshoot of the moving contact causing partial fatigue and durability of the vacuum interrupter bellows.
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 | ||||||
Company Details
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
1000000-9000000
Employee Number:
50~100
Ecer Certification：
Active Member
Knkong Electric Co., Ltd (Zhengzhou Knkong Mechanical And Electrical Co., Ltd)was established in 2012. A wholly-owned subsidiary of Henan Sanhe Electric Group. We are mainly responsible for overseas market exporting, electronic components, and technology import. Relying on a h... Knkong Electric Co., Ltd (Zhengzhou Knkong Mechanical And Electrical Co., Ltd)was established in 2012. A wholly-owned subsidiary of Henan Sanhe Electric Group. We are mainly responsible for overseas market exporting, electronic components, and technology import. Relying on a h...
Get in touch with us
Leave a Message, we will call you back quickly!