Product definition
Introduction
JN22-40.5/31.5 series indoor HV earthing switch is researched and developed by XI’AN HV Electric research organization, with advanced design and steady performance, simple structures, simple mounting end adjustment suitable for electric power system with 40.5KV, Three-phase, AC 50Hz.Support with KYND-40.5 and other various kinds of HV switchgear and as earthing protedion. II is complied with GB 1985-2004 and IEC129 standard.
Working condition
1. Altitude： w 1000m
2. Ambient temperature：-10°C ~+407Man
3. Earthquake intensity： w 8degree
4. Appliable in the place without corrosive, flammable gas and water place
Mainly technical parameters
| Item | Unit | data | |
| Rated voltage | KV | 30 | |
| Maximum voltage | KV | 40.5 | |
| Rated short time withstand current (thermal stability) | THE | 31.5 | |
| Rated short circuit withstand time | S | 4 | |
| Rated short circuit making current | THE | 80 | |
| Rated peak withstand current (dynamic stability) | THE | 80 | |
| Rated insulation leve | Main Power Frequency Withstand Voltage | KV | 95 |
| Lightning Impulse Withstand Voltage | 185 | ||
| Central Distance Between Poles | time | 300;350;400 |
Outline and installation dimension
Cabinet backwards
| B | H |
| 280 | 750 |
| 300 | 790 |
| 350 | 890 |
| 400 | 990 |
Order notes
1. vindicate product specification, rated voltage stability current, central distance between poles.
2.If shaft needed.please indicate right or left operation mechanism according Io the operation position shows in the drawing above.
3.If sensors with electric display device needed, please indicate type NO..
4.Please consult with us if any special request.
