Hangzhou Yongde Electric Appliances Co.,Ltd
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GW13 Series High Voltage Substation Equipment Free Standing Earthing Switches
GW13 Series Disconnector:
GW13 type main transformer neutral is alternating current 50Hz outdoor electric equipment.
In the event of the no bearing, it used as the transformer neutral point to connect the ground.
It also can be used as the ground connecting equipment composed with the adjustable
discharge gap, gap support isolated pillar and current mutual inductor.
GW13 Disconnector Specifications:
| No | Item | parameter | |||
| 1 | Rated Voltage kV | 72.5 | 123 | 145 | |
| 2 | Rated Current A | 630, 1250 | |||
| 3 | Rated Short Time withstand current and time kA/s | 25-40/4 | |||
| 4 | Rated Peak withstand current kA | 63-100 | |||
| 5 | 1min power frequency withstand voltage (effective value) kV | To earth | 140 | 230 | 275 |
| To phase | 140 | 230 | 275 | ||
| 6 | Lightning impulse withstand voltage v(peak value) kV | To earth | 325 | 550 | 650 |
| To phase | 325 | 550 | 650 | ||
| 7 | Rated mechanical terminaload N | Level of lateral load | 750 | 1500 | 1500 |
| Level of vertical load | 500 | 1000 | 1000 | ||
| Vertical force | 750 | 1000 | 1000 | ||
| 8 | Max Man Operative Moment N. m | 200 | |||
| 9 | control voltage V | AC220 DC110 or220 | |||
| 10 | motor voltage V | AC220 or380 DC110 or220 | |||
Motor Drive:
The earthing switch can be single-pole or three-pole operated by means of a motor-operated drive mechanism or a manual-operated drive mechanism.