Customization: | Available |
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Certification: | ISO9001 |
Shell Material: | Stainless Steel |
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No. | Parameters name | Unit | Parameters | ||||||
Circuit breaker | Load switch | ||||||||
1 | Rated voltage | kV | 12 | ||||||
2 | Rated current of main busbar | A | 630 | 1250 | |||||
3 | Rated frequency | Hz | 50 | ||||||
4 | Rated short time withstand current | Main circuit | kA | 25 | 31.5 | ||||
Ground circuit | 21.7 | 27.4 | |||||||
5 | Rated short-time peak current | Main circuit | 63 | 80 | |||||
Ground circuit | 54.5 | 68.5 | |||||||
6 | Rated short circuit withstand time | Main circuit | s | 4 | |||||
Ground circuit | 2 | ||||||||
7 | Rated short circuit closing current (peak) | kA | 63 | 80 | |||||
8 | Rated short circuit breaking current | 25 | 31.5 | ||||||
9 | Rated short circuit breaking times | Times | 30 | ||||||
10 | Rated operation sequence | O-0.3s-CO-180s-CO | |||||||
11 | Mechanical life | Circuit breaker (load switch) | Times | 10000 | |||||
Three-position switch | 5000 | ||||||||
12 | Rated insulation level | 1min power frequency withstand voltage (effective value) | Phase, to ground | kV | 42 | ||||
Fracture | 48 | ||||||||
Lightning impulse withstand voltage (peak) | Phase, to ground | 75 | |||||||
Fracture | 85 | ||||||||
Power frequency withstand voltage of secondary circuit | V | 2000 | |||||||
13 | Contact opening distance | mm | 9±1 | ||||||
14 | Overtravel | 3±0.5 | |||||||
15 | Interphase center distance | 210±1 | |||||||
16 | Closing contact bounce time | ms | ≤2 | ||||||
17 | Three phase asynchronous of opening | ≤2 | |||||||
18 | Opening time | highest | 17~55 | ||||||
rated | |||||||||
When the operating voltage is | Minimum | ||||||||
19 | Closing time | ms | 30~70 | ||||||
20 | Average opening speed (first 6mm average) | m/s | 1.0~1.8 | ||||||
21 | Average closing speed (after 6mm average) | 0.8~1.4 | |||||||
22 | Main conductive circuit's resistance | μΩ | ≤100 | ||||||
23 | Contact pressure | N | 3200±150 | ||||||
24 | Opening contact's rebound amplitude | mm | ≤2 |