Customization: | Available |
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Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Electric Type |
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1 | Structure | Common tank | ||
2 | Arc extinguishing/insulation medium | Sf6 | ||
3 | Rated voltage (KV) | 12 | 24 | |
4 | Rated current (A) | 630 | 630 | |
5 | Rated cable charging breaking current. (A) | 25 | 25 | |
6 | Rated MAX breaking load (lock) current. (A) | 900 | 900 | |
7 | Temperature rise test current | 1.2Ir | 1.2Ir | |
8 | Rated power frequency 1 min withstand voltage ( KV) |
Phase to earth/ between phases | 42 | 65 |
Across isolating distance | 48 | 79 | ||
9 | Rated lightning impulse withstand voltage (1.2/50s) peak ( KV) | Phase to earth/ between phases | 75 | 125 |
Across isolating distance | 85 | 145 | ||
10 | Rated short time withstand current and duration (KA/S) | 20/4 | 20/4 | |
11 | Main circuit resistance (μΩ) | ≤130 | ≤130 | |
12 | Mechanical stability (times) | ≥10000 | ≥10000 | |
13 | External insulation MIN creep distance (mm) | 556 | 780 | |
14 | Phase distance (mm) | 250±2 | 250±2 | |
15 | Rated current breaking times | ≥600 | ≥600 |