SF6 GIS Gas Insulated Switchgear Accessories Three-position Load Switch with Earthing
Matters need attention during operating environment
1.altitude not over 2000m, earthquake magnitude not over 8 degree
2.air temperature lower than +40℃, but not lower than -30℃. Relative temperature daily average not over 95%,
month average not over 90%.
3.the installation site with frequent serious vibration, water vapour, gas, chemical corrosive deposit,
salt mist, dust, fire and explosion hazard ,which evidently affect mechanism’s performance, is not applicable.
Technical parameter
|
NO |
Item |
Unit |
Technical data |
|
1 |
Rated frequency |
Hz |
50 |
|
2 |
Rated current |
A |
630 |
|
3 |
Rated short time withstand current |
KA |
20/25 |
|
4 |
Rated peak withstand current |
KA |
63 |
|
5 |
Rated duration of short circuit |
s |
2 |
|
6 |
Rated short circuit making current |
KA |
63 |
|
7 |
Theoretic operation |
times |
3000 |