JN17-12/40 High voltage Eaething Switch
Short Description:
JN17-12/40 (old type is JN15-12/40) series indoor high voltage earthing switch is a new design and improved product of our company according to the ES1 type, the structure is assembled, suitable with electric power system with 3-10KV,Three-phase, AC 50(60)Hz, support with various kinds of HV switchgear and as earthing protection.It is manufactured comply with GB1985-2004 and IEC129 standard.
Detail
Product Definition
Introduction
JN17-12/40 (old type is JN15-12/40) series indoor high voltage earthing switch is a new design and improved product of our company according to the ES1 type, the structure is assembled, suitable with electric power system with 3-10KV,Three-phase, AC 50(60)Hz, support with various kinds of HV switchgear and as earthing protection.It is manufactured comply with GB1985-2004 and IEC129 standard.
Working Condition
1.Ambient temperature:-10~+40℃
2.Altitude:≤1000m(sensor height:140mm)
3.Relative humidity:Day average relative humidity ≤95%
Month average relative humidity ≤90%
4. Earthquake intensity: ≤8degree
5. Dirtiness degree:II
Mainly technical parameters
| Item | Units | Data | |
| Rated voltage | kV | 12 | |
| Rated short time withstand current | kA | 40 | |
| Rated short circuit withstand time | s | 4 | |
| Rated short circuit ,aking current | kA | 100 | |
| Rated peak withstand current | kA | 100 | |
| RatedInsulationlevel | 1min power frequencyWithstand voltage | kV | 42 |
| Lighting Impulsewithstand voltage | kV | 75 | |
| Mechanism life | time | 2000 | |
