This vacuum interrupter is designed for 12KV-1000A-25KA VCB(for eastern europe), and applies welding bellows and has passed test
CERAMIC VACUUM INTERRUPTER FOR CIRCUIT-BREAKER
MAIN TECHNICAL DATA TYPE: TD-12/1000-25(2332)
Data | Unit | Value |
Rated Voltage | kV | 12 |
Lightning Impulse Withstand Voltage (Peak) | kV | 75 |
Short-time (1min) Power-frequency Withstand Voltage | kV | 20/42 |
Rate Frequency | Hz | 50 |
Rated Current | A | 1000 |
Rated Short-time Withstand Current | kA | 25 |
Rated Duration of Short-circuit | s | 4 |
Rated Peak Withstand Current | kA | 63 |
Rated Short-circuit Making Current | kA | 63 |
Rated Short-circuit Breaking Current | kA | 25 |
Max. Dc component |
| 50% |
Switch Operations of Rated Short-circuit Breaking Current | Operations | 20 |
Rated Single Capacitor Bank Breaking Current | A | 400 |
Rated Back-to-back Capacitor Bank Breaking Current | A | 400 |
Mechanical Endurance | Operations | 2000 |
Clearance Between Open Contacts | mm | 9±1 |
Contact Closed Force Due to Bellows and Atmosphere | N | 50±25 |
Counterforce of Contact at Full Stroke | N | 160±25 |
Circuit Resistance at Min. Rated Contact Force | μΩ | ≤25 |
Contact Limit Erosion | mm | 3 |
Mass of Moving Parts | kg | 0.5±0.1 |
Internal Gas Pressure | Pa | <1.33×10-3 |
Shelf Life | Year | 20 |
Rated Operating Sequence | Open 0.3s - CO 180s CO | |
MECHANICAL DATA OF VACUUM SWITCH EQUIPPED WITH THE INTERRUPTERS
Data | Unit | Value |
Average Opening Speed(first 6mm) | m/s | 1.1±0.2 |
Average Closing Speed(last 6mm) | m/s | 0.6±0.2 |
Contact Bounce Duration at Closing Operation | ms | ≤2 |
Out of Simultaneity of Contact Closing and Opening | ms | ≤1 |
Rated Contact Pressure | N | 1900±100 |
Max. rebound of contact at opening Operation | mm | ≤2 |
Overtravel during Opening | mm | ≤1 |
Note 1: Within transformer oil or equivalent isolation medium.
Note 2: Rated characteristics to be given on request.
Note 3: Meets or exceeds the electrical endurance requirements of class E2 for auto-reclosing duty per IEC 62271-100 and GB1984-2003.
