Hangzhou Yongde Electric Appliances Co.,Ltd
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Outdoor Mounted Three-poles Earthing Switches With Steel Base Plate 126KV
Why use YongDe earthing switches?
Specifications:
| Parameter Table | |||||
| No | Items | Technical parameter | |||
| 1 | Rated Voltage kV | 72.5 | 126 | 252 | |
| 2 | Nominal system voltage kV | 66 | 110 | 220 | |
| 3 | Rated current A | 630;1250;1600;2000;2500;3150;4000 | |||
| 4 | Rated Short Time withstand current and Time kA/s | 25~50/4 | |||
| 5 | Rated Peak withstand current kA | 63~125 | |||
| 6 | 1min power frequency withstand voltage (effective value) kV | To earth | 140 | 230 | 460 |
| To phase | 140 | 2300 | 460 | ||
| Across Isolating DS | 180 | 230+70 | 460+145 | ||
| 7 | Lightning Impulse wishstand voltage(peak value) KV | To earth | 325 | 550 | 1050 |
| To phase | 325 | 500 | 1050 | ||
| Across Isolating DS | 385 | 550+100 | 1050+150 | ||
| 8 | Rated mechanical terminal load N | Level of lateral load | 750 | 1500 | 2000 |
| Level of vertical load | 500 | 1000 | 1500 | ||
| Vertical | 750 | 1000 | 1250 | ||
| 9 | The min distance of insulation against ground mm | 600 | 1000 | 2000 | |
| 10 | Max Man Operative Moment N. m | 200 | |||
| 11 | Motor Drive operating mechanism control voltage V | AC220,380; DC110,220 | |||
| 12 | Motor Drive operating mechanism motor voltage V | AC220,380; DC110,220 | |||
Testing:
The earthing switches are designed and tested in accordance with latest IEC specifications.