Vacuum Electrical Power Interrupter Long Service Life 7.56 Making Current
About Us :
Founded in 1958, Guoguang Electric Co., Ltd. Chengdu. is one of the Soviet Union's aids 156 key projects during the 1stFive-Year plan, and also a comprehensive factory dedicated in manufacturing of microwave electron. In October of 2000, the factory is reorganized into a share-holding corporation that set foot in science research, manufacturing and trading. The headquarter and the manufacturing base are situated in the state-level economic and technological development zone of Longquanyi District, Chengdu city. The manufacturing base area is 133,340m2 and the total area of structure is 80,000m2. The total asset of the company is nearly 900 million RMB and net asset is 600 million RMB. Over 1100 staff members have been employed and over 30% of them are medium and high ranking technicians.
Parameter
| No. | MAIN TECHNICAL DATA | Unit | ||
| 1 | Rated Voltage | kV | 1.14 | |
| 2 | Lightning Impulse Withstand Voltage (Peak) | kV | ||
| 3 | Short-time (1min) Power-frequency Withstand Voltage | kV | 5 | |
| 4 | Rated Frequency | Hz | 50/60 | |
| 5 | Rated Current | A | 630 | |
| 6 | Rated Short-time Withstand Current | kA | 8 | |
| 7 | Rated duration of Short-circuit | s | 1 | |
| 8 | Rated Breaking Current | A | 6300 | |
| 9 | Limiting Breaking Current | kA | 6.3 | |
| 10 | Rated Making Current | kA | 7.56 | |
| 11 | Rated Operating Frequency | AC-3 | Operations/h | |
| AC-4 | ||||
| 12 | Short-time Operating Frequency | Operations/h | 3000 | |
| 13 | Utilization Category | AC | ||
| 14 | Electrical Endurance | AC-3 | Operations | 3*106 |
| AC-4 | 6*104 | |||
| 15 | Mechanical Endurance | Operations | 5*106 | |
| 16 | Clearance Between Open Contacts | mm | 1.2~1.5 | |
| 17 | Contact Closing Force Due to Bellows and Atmosphere | N | 105~140 | |
| 18 | Counter force of Contacts at Full Stroke | N | 120~160 | |
| 19 | Circuit Resistance at Min. Rated Contact Force | μΩ | ||
| 20 | Contact Limit Erosion | mm | 1 | |
| 21 | Mass of Moving Parts | kg | 0.6 | |
| 22 | Internal Gas Pressure | Pa | ≤1.33*10-3 | |
| 23 | Shelf Life | Year | 10 | |
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