No |
Item |
220KV Arresters |
1 |
Nominal voltage /Max voltage Um KV (r.m.s) |
220/252 |
2 |
Rated voltage Ur KV (r.m.s) |
200 |
204 |
216 |
3 |
Continuous running voltage Uc KV (r.m.s) |
156 |
159 |
168.5 |
4 |
DC reference voltage U1mA KV ≥ |
290 |
296 |
314 |
5 |
Operating frequency reference voltage KV (r.m.s) ≥ |
200 |
204 |
216 |
6 |
Rated gas pressure |
0.45Mpa |
7 |
Lowest gas pressure |
0.35Mpa |
8 |
Residual pressure KV£¨peak£©≤ |
Lightning impact Current under10KA |
520 |
532 |
562 |
9 |
Partial discharges under 1.1Uc PC ≤ |
10 |
10 |
10 |
10 |
Continuous CurrentμA ≤ |
300 |
300 |
300 |
11 |
Insulation voltage within tolerance |
ßÓ-ò¢ |
Lightning impact KV£¨peak£© |
1050 |
Frequency 1minKV£¨r.m.s£© |
450 |
ßÓ-ßÓ |
Lightning impact KV£¨peak£© |
|
Frequency 1minKV£¨r.m.s£© |
|
12 |
Heavy |
Single-phase |
550 |
Three-phase |
|
13 |
Size |
Single-phase |
φD |
680 |
H |
1288 |