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1. General
VS1 series vacuum circuit breaker is indoor high voltage switchgear with rated voltage 7.2-12kV, three-phase AC 50Hz, It is used for the This product conforms to the national standard GB1984-2003 "Alternate current high-voltage circuit breaker", and international standard IEC 62271-100"High-voltage alternate current circuit breaker". 2. Service Environment Altitude:1000m and below; Environmental temperature is from:-15~40°C; Environmental humidity: Daily average of relative humidity≤95% Daily average saturated vapor pressure≤2.2×10-3Mpa Monthly average of relative humidity≤90% Monthly average saturated vapor pressure≤1.8×10-3Mp No operating in such environment as subject to dust, dirt, smog, corrosive/flammable gas, vapor and salt pollution. Earthquake intensity: No more than 8 degree. 3. Technical dataCode | Item | Unit | Data |
1 | Rated voltage | kV | 12 |
2 | rated frequency | Hz | 50 |
3 | Rated lighting impact withstand voltage(peak value) | kV | 75 |
4 | power frequency withstand voltage (1 min) | kV | 42 |
5 | Rated current | A | 630 630 1250 1250 1250 1600 |
6 | Rated short-circuit breaking current | kV | 20 25 31.5 |
7 | Rated short-time withstand current (virtual value) | kV | 20 25 31.5 |
8 | Rated peak withstand current (peak value) | kV | 50 63 80 |
9 | Rated short-circuit making current (peak value) | kV | 50 63 80 |
10 | Duration of rated short-circuit current | s | 4 |
11 | Rated operating order |
| 0-0.3-CO-180S-CO 0-180S-CO-180S-CO |
12 | Rated breaking current of single/symmetrical capacitor bank | A | 630/400 (40kA:800/400) |
13 | Rated making surge current of capacitor bank | kV | 20 (frequency:4250Hz) |
14 | Contact clearance | mm | 11±1 |
15 | Contact travel | mm | 3.5±0.5 |
16 | Bounce time of contact making | ms | ≤2 |
17 | Out of simultaneity of three-phase making and breaking | ms | ≤2 |
18 | Average breaking speed | m/s | 0.9~1.2 |
19 | Average making speed | m/s | 0.5~0.8 |
20 | Breaking time (rated voltage) | ms | 20~50 |
21 | Making time (rated voltage) | ms | 35~70 |
22 | Rated operation voltage of making and breaking | V | AC110/220, DC110/220 |
23 | Rated voltage of energy storage motor | V | AC110/220, DC110/220 |
24 | Rated power of energy storage motor | W | 70,100 (40kA) |
25 | Energy storage time | s | ≤15 |
26 | Permitted abrasion thickness of moving and fixed contacts | mm | ≤3 |
27 | Rebound amplitude of contact breaking | mm | ≤2 |
28 | Main circuit resistance |
| 630A ≤50µΩ 1250A ≤45µΩ |
33kV Vacuum Circuit Breaker/ MV vacuum circuit breaker VS1