550kv AC System Gapless Metal Oxide Surge Arrester (Y20W5-444)
Parameters:
Rated voltage: 444KV
Nominal discharge current: 20KA
Shed diameter: 412/380
Creepage distance: 17052mm
Height: 5824mm
Gross weight: 1355kg
High current impulse: 120KA
Lightning impulse withstand 1425KV
Switching impulse withstand: 1050/1175
Type |
Nominal System Voltage |
Rated Voltage |
Continuous Operating Voltage |
MRV under 1/5 μ s Steeo Discharge Current |
MRV under 8/20 μ s Lightning Discharge Current |
MRV under 30/60 μ s Operating Discharge Current |
Minmum Reference Voltage under 1 mA DC |
4/10 μ s High Current Impulse Twice (KA) |
2mS SW through-flow capacity A/18 |
Line Discharge Class |
10KA |
20KA |
10KA |
20KA |
0.5KA |
2KA |
Y10W5-420/960 |
500 |
420 |
318 |
1075 |
|
960 |
|
852 |
|
565 |
100 |
1500 |
4 |
Y20W5-420/1046 |
500 |
420 |
318 |
|
1070 |
|
1046 |
|
858 |
565 |
100 |
2000 |
5 |
Y10W5-444/1015 |
500 |
444 |
324 |
1137 |
|
1015 |
|
900 |
|
597 |
100 |
1500 |
4 |
Y20W5-444/1106 |
500 |
444 |
324 |
|
1238 |
|
1106 |
|
907 |
597 |
100 |
2000 |
5 |
Y10W5-468/1070 |
500 |
468 |
330 |
1198 |
|
1070 |
|
950 |
|
630 |
100 |
1500 |
4 |
Y20W5-468/1166 |
500 |
468 |
330 |
|
1306 |
|
1166 |
|
956 |
630 |
100 |
2000 |
5 |