- Contact Person : Mr. Gene Pan
- Company Name : Zhejiang Changkai Electrical Co., Ltd.
- Tel : 86-0577-61730881
- Fax : 86-0577-61730882
- Address : Zhejiang,Yueqing,Dongfang Road East section Wengyang Industry Zone Yueqing
- Country/Region : China
- Zip : 325606
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Company profile:
China·ZheJiang ChangKai Electrical CO.,LTD was locate d at coastal zone of south of Zhejiang province, that is ,Beautiful Yandan mountain of scenery YueQing known as China Electric Municipality. It possesses one hundred and eighty employees in total, thirty percent of which is various of professional technician. The company has completely pass ed the ISO9001 Quality System certification and obtain ed the production license, CCC Authentication, testing certification. Right of self-supporting importing and exporting.
Technical parameter:
serial number | Item | Uint | Data | ||||
20KV | 25KV | 31.5KV | 40KV | ||||
1 | Rated voltage(KV) | KV | 12 | ||||
2 | Rated current(A) | A | 630,1000 1250 | 1250,1600 | 1250,1600 2000,2500 | 1600,2500 3150 | |
3 | Rated short-circuit break current | KV | 20 | 25 | 31.5 | 40 | |
4 | Rated short-circuit close current(peak value) | KV | 50 | 63 | 80 | 100 | |
5 | Rated peak value withstand current | KV | 50 | 63 | 80 | 100 | |
6 | 4SRated little withstand current | KV | 20 | 25 | 31.5 | 40 | |
7 | Rated in sulation level | Industrial frequency withstand voltage | KV | 45(fracture48) | |||
Thunder impulse withstand voltage | 75(fracture84) | ||||||
8 | Rated operation order | Off-0.3s on and off-180s-on and off | |||||
9 | Mechanical life-span | times | 10000 | ||||
10 | Rated short-circuit cruuent break and close time | times | 30 | 20 | |||
11 | Speak and move organization amount equal to the voltage of the floodgate(DC) | V | 110,220 | 220 | |||
12 | Speak and move mechanism amount shut the electric current of floodgate(DC) | A | 71 | 128 | |||
13 | Speak and move organization amount assign the voltage of the floodgate(DC) | V | 110,220 | ||||
14 | Speak and move organization amount assign the electric current of floodgate(DC) | A | 3.0,1.5 | ||||
15 | Switching distanc of the contact | mm | 11±1 | ||||
16 | Ultra journey(touches the head spring and compress length) | mm | 4±1 | ||||
17 | three-phass breaking into,shut floodgate sex of the same period | ms | ≤2 | ||||
18 | Touch the head and shut a floodgate of time of bouncing | ms | ≤2 | ||||
19 | Average speed of breaking brake | m/s | 1.2±0.3 | ||||
20 | Average speed of closing brake | m/s | 0.6±0.2 | ||||
21 | Time of breaking brake | Operate it under the voltage highest | s | ≤0.06 | |||
Operate it under the voltage the mostlow | ≤0.08 | ||||||
22 | Time of closing brake | s | ≤0.2 | ||||
23 | Each the resistance of main return circuit | μΩ | ≤40 | ≤20 | |||
24 | Allowance abrasion cumulated thickness of the moving and stationary contact | mm | 3 | ||||
25 | Oil buffer buffers the journey | mm | 10 |
Display:
ZN28 Series indoor High-voltage Vacuum Breaker,vacuum circuit breaker