China 35kv Mv Compact Sf6 Gas Insulated Ring Main Unit Switchgear, Find details about China Switchgear, Ring Main Unit from 35kv Mv Compact Sf6 Gas Insulated Ring Main Unit Switchgear
No. | Item | Unit | Parameter | |
1 | Rated voltage | KV | 40.5 | |
2 | Power frequency withstand voltage | dry | 80/95 | |
wet | ||||
Lightning impulse withstand voltage | 170/185/200 | |||
3 | Rated current | A | 630 | |
4 | Rated short circuit breaking current | KA | 20/25(V)31.5(F) | |
5 | Rated breaking current loop | A | 630(C) | |
6 | Rated cable charging breaking current | A | 50(C) | |
7 | Rated cable charging breaking current | A | 10(C) | |
8 | Rated excitation transformer breaking current | A | 16 | |
9 | Rated making current peak | KA | 50/2.5(/) (main switch/earth) | |
10 | Rated peak withstand current | |||
11 | Rated short time withstand current | 20 | ||
12 | Rated short time withstand time | S | 4 | |
13 | Mechanical life | times | C/F(2000)V(10,000) |