- 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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Description of VCBI -15
VCBI series high-voltage vacuum circuit breaker is a kind of indoor high-voltage switch equipment with 50/60Hz three-phase alternating current and 15kV rated voltage, which combined the technique of the ABB Corporation in Switzerland and domestic development state and manufacturing capability. The general framework is composed by the body and operation system.
The composite insulated material insures no pollution and explosion danger with high insulation level.
The product conforms to IEC 62271, GB 1984, JB3855 and DL1403.
Technical specification of VCBI -15
Item | Unit | Data | ||
Rated voltage | kV | 15 | ||
Rated frequency | Hz | 50 / 60 | ||
Rated lightning impact withstand voltage (peak) | kV | 95 | ||
Rated short-time power frequency withstand voltage (1min) | kV | 50 | ||
Rated short-circuit breaking current | kA | 20 | 25 | 31.5 |
Rated current | A
| 630 1250 | 630 1250 1600 | 1250 1600 2000 2500 |
Rated short-time withstand current (Virtual value) | kA | 20 | 25 | 31.5 |
Rated peak withstand current (peak) | kA | 50 | 63 | 80 |
Rated short-circuit making current (peak) | kA | 50 | 63 | 80 |
Rated operating sequence |
| O-0.3s-CO-180s-CO | ||
Making and breaking times of short-circuit current | times | 30 | ||
Duration of rated short-circuit current | s | 4 | ||
Mechanical life | times | 20000 | ||
Power frequency withstand voltage of secondary circuit | V | 2000 | ||
Rated breaking current of single capacitor bank | A | 630 | ||
Rated breaking current of back to back | A | 400 | ||
Rated making surge current of capacitor bank | kA | 20 (frequency:4250Hz) | ||
Contact clearance | mm | 11 ± 1 | ||
Contact travel | mm | 3.5 ± 0.5 | ||
Bounce time of contact closing | ms | ≤2 | ||
Different period of three-phase at closing and Tripping | ms | ≤2 | ||
Average closing speed | m/s | 0.9~1.2 |
VCBI(VS1)-15kv Series High-voltage Breaker