- Contact Person : Ms. LI YAN
- Company Name : Chengdu Xuguang Electronics Co., Ltd.
- Tel : 0086-28-83967045
- Fax : 0086-28-83967779
- Address : Sichuan,Chengdu,XINGONG AVENUE 318#, EAST INDUSTRY ZONE,610500 XINDU DISTRICT,
- Country/Region : China
- Zip : 610500
vacuum interrupter
CERAMIC VACUUM INTERRUPTER FOR CIRCUIT-BREAKER
MAIN TECHNICAL DATA TYPE: TD-24/1250-20A1(2378-G)
Data | Unit | Value |
Rated Voltage | kV | 24 |
Lightning Impulse Withstand Voltage (Peak) | kV | 125 |
Short-time (1min) Power-frequency Withstand Voltage | kV | 65 |
Rate Frequency | Hz | 50 |
Rated Current | A | 1250 |
Rated Short-time Withstand Current | kA | 20 |
Rated Duration of Short-circuit | s | 4 |
Rated Peak Withstand Current | kA | 50 |
Rated Short-circuit Making Current | kA | 50 |
Rated Short-circuit Breaking Current | kA | 20 |
Max. Dc component |
| 40% |
Electrical Endurance |
Class | E2 |
Rated Single Capacitor Bank Breaking Current | A | 400 |
Rated Back-to-back Capacitor Bank Breaking Current | A | 400 |
Mechanical Endurance | Operations | 10000 |
Clearance Between Open Contacts | mm | 13±1 |
Contact Closed Force Due to Bellows and Atmosphere | N | 110±40 |
Counterforce of Contact at Full Stroke | N | 200±40 |
Circuit Resistance at Min. Rated Contact Force | μΩ | ≤18 |
Contact Limit Erosion | mm | 3 |
Mass of Moving Parts | kg | 1.2 |
Internal Gas Pressure | Pa | <1.33×10-3 |
Shelf Life | Year | 20 |
Rated Operating Sequence | O 0.3s - CO 180s CO | |
MECHANICAL DATA OF VACUUM SWITCH EQUIPPED WITH THE INTERRUPTERS
Data | Unit | Value |
Average Opening Speedfirst 6mm | m/s | 1.4±0.2 |
Average Closing Speedlast 6mm | m/s | 0.8±0.2 |
Contact Bounce Duration at Closing Operation | ms | ≤2 |
Out of Simultaneity of Contact Closing and Opening | ms | ≤1 |
Rated Contact Pressure | N | 1800+/-400 |
Max. rebound of contact at opening Operation | mm | 2 |
Overtravel during Opening | mm | ≤2 |
Note 1 : Rated characteristics to be given on request;
2 : Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-100 and GB1984-2003
vacuum interrupter
