Ningbo, Zhejiang, China
Business Type: Manufacturer/Factory, Trading Company
No. | Item | unit | Parameter | |
1 | Rated voltage | KV | 12 | |
2 | Main busbar rated current | A | 630 | |
3 | Rated current | A | 630 | |
4 | Rated frequency | HZ | 50 | |
5 | Rated short-time withstand current | KA | 20 | |
6 | Rated short time continual time | S | 4 | |
7 | Rated peak withstand current | KA | 50/125 | |
8 | Rated short-circuit making current | KA | 50 | |
9 | Rated active load breaking current | A | 630 | |
10 | Rated closed loop breaking current | A | 630 | |
11 | Rated cable-charging breaking current | A | 10 | |
12 | The earthing switch rated short-time resistance current | KA | 20 | |
13 | Grounding switch rated short circuit duration | S | 4 | |
14 | Grounding switch rated peak withstand current | KA | 50 | |
15 | Rating insulation level | 1min Power frequency withstand voltage | KV | (phase to phase/ phase-to-ground) 42; (isolating distance) 48 |
lightning impulse withstand voltage (peak value) | KV | (phase to phase/ phase-to-ground) 75; (phase to phase/ phase-to-ground) 85 | ||
16 | major loop resistance | ≤400 | ||
17 | mechanical life | Load switch | time | 5000 |
Earthing switch | time | 2000 | ||
18 | subsidiary loop 1min Power frequency withstand voltage | KV | 2 | |
19 | SF6 Rated Gas pressure (20ºC gauge pressure) | Mpa | 0.04 | |
20 | SF6 Gas annual Leakage rate | 1% | ||
21 | Protection grade | IP4X |