TJC-7.2-630
1. Brief introduction
The interrupter adoption porcelain and ceramics makes to insulate the outer shell. is WCCu metal alloy material advanced technique of adoption Including bulk small. Breaking the abiliting strong the life span is long maintenance is simple .no explosion dangerous no contaminate and the noise is low . The pack vacuum r can operate the ebery kind of electric appliances equipments, and fuse match f-c cabinet
2. Vacuum Tube main technique parameter
No. | Parameter name | Unit | Value |
1 | Rated voltage | kV | 7.2 |
2 | Rated current | A | 630 |
3 | Rated frequency | Hz | 50 |
4 | Rated making current | kA | 6.3 |
5 | Rated breaking current | kA | 5.04 |
6 | Limiting breaking current | kA | 6.3 |
7 | Rated short-time withstand current | kA | 6.3 |
8 | Rated short-time withstand voltage | kV | 32 |
9 | Rated lighting impulse voltage | kV | 60 |
10 | Circuit resistance at lowest rated force | μΩ | ≤80 |
11 | Electrical life | Times | 250000 |
12 | Mechanical life | times | 500000 |
13 | Closing force due to bellows and atmosre | N | 70±20 |
14 | Force required to hold open at full stroke | N | 100±30 |
15 | Limiting abrasion of | mm | 3 |
16 | Internal gas pressure | Pa | ≤1.33×10-3 |
17 | Storage life | years | 20 |
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