品牌:
Description
JN22-40.5/31.5 Indoor HV Earthing Switch is used for 3 phase rated voltage 40.5kV, AC 50Hz power system , high voltage switchgear with KYN61-405, high voltage electrical equipment maintenance as the use of ground fault protection. The switch conforms to the national standard GB1985-2004 " AC high voltage disconnectors and earthing switches" and IEC62271-102.
Environment condition
- Ambient temperature: -25℃~+40℃
- Altitude: ≤1000m
- Relative humidity: monthly average ≤90%; daily average: ≤95%
- Earthquake intensity: ≤8 degree
Technical Data
| Rated voltage (kV) | 35 | |
| Max. voltage (kV) | 40.5 | |
| Rated short-time withstand current(thermal stability) (kA) | 31.5 | |
| Rated short-circuit duration (s) | 4 | |
| Rated short-circuit making current (kA) | 80 | |
| Rated peak withstand current (dynamic stability) (kA) | 80 | |
| Inter-pole center distance (mm) | 350, 400 | |
| Rated insulation level | 1min.PF withstand voltage (kV) | 95 |
| Lightning impulse withstand voltage (kV) | 185 | |
Outline & Mounting Dimensions
