China Grounding Switches,Grounding Switches Manufacturer
Operating Mechanism
(15)
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General Profile
JN15-12 indoor HV earthing switch absorbs advanced new technics from domestic and aborb. It conforms to GB1985 AC HV disconnect switch and earth switch, relative standards IEC60129. The apparatus applies to power system of rating below 12KV/40.5KV, and AC50/60Hz. It is suitable for various types HV switchgear for earthing protection. The holistic earthing switch consists of basis, supporting insulator, main axis, main blade, fast spring, fixed and moving contact. Additional electronic display is also available according to the user's requirement.
Technical Parameters
|
Item |
Unit |
Technical Data |
||
|
Rated voltage |
kV |
12 |
40.5 |
|
|
Rated withstand current |
kA |
31.5,40 |
31.5 |
|
|
Rated short-circuit duration |
S |
4 |
4 |
|
|
Rated short-circuit close current |
kA |
80,100 |
80 |
|
|
Rated peak value withstand current |
kA |
80,100 |
80 |
|
|
Interelectrode distance |
mm |
150/165/210/230/250 |
350/380/460 |
|
|
Rated insulating level |
1 min power frequency withstand voltage |
kV |
40/49 |
95 |
|
Lightning impulse withstand voltage |
kV |
75/85 |
185 |
|
