






◆Installation method: side-mounted, middle-mounted
◆Ambient air temperature: upper limit +40C, lower limit -30C; ;
◆Altitude: ≤2000m (if the altitude needs to be increased, the rated insulation level should be increased accordingly);
◆Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);
◆Amplitude: earthquake intensity 8 degrees;
◆Contamination level: Class I;
◆Maximum daily temperature difference: no more than 25C.
|
Main technical parameters |
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|
NO. |
Project |
Unit |
Parameter |
|||||
|
GN27-40.5/630-20 |
GN27-40.5/1250-31.5 |
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|
1 |
Rated voltage |
kv |
40.5 |
40.5 |
||||
|
2 |
Rated current |
A |
630 |
1250 |
||||
|
3 |
Rated short-time withstand current(effective value,time) |
KV/4S |
20 |
31.5 |
||||
|
4 |
Rated short-time withstand current |
KV |
50 |
80 |
||||
|
5 |
Lightning impulse withstand voltage |
ground and between poles |
KV |
185 |
185 |
|||
|
fracture |
KV |
215 |
215 |
|||||
|
6 |
1min power frequency withstand voltage |
ground and between poles |
KV |
95 |
95 |
|||
|
fracture |
KV |
115 |
115 |
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