Overview
The GW4 series outdoor high-voltage disconnectors are outdoor high-voltage electrical equipment for AC 50Hz, with rated voltage levels of 12kV, 17.5kV, 40.5kV and 126kV. They are used for opening and closing high-voltage lines under voltage but no-load conditions, as well as for electrical isolation between high-voltage busbars, circuit breakers and other electrical equipment under maintenance and live high-voltage lines. They can also be used for opening and closing small capacitive or inductive currents.
This series of outdoor disconnectors complies with the relevant provisions of GB1985 "High-voltage AC disconnectors and earthing switches", IEC129 "AC disconnectors and earthing switches", and GB/T11022 "Common specifications for high-voltage switchgear and controlgear standards".
Main Technical Parameters
| Model | Rated Voltage (kV) | Rated Current (A) | Rated Peak Withstand Current (kA) | 4S Rated Short-Time Withstand Current (kA) |
| GW4-12 | 12 | 200A | 31.5 | 12.5 |
| 400A | 40 | 16 | ||
| 630A | 50 | 20 | ||
| 1000A/1250A | 63 | 25 | ||
| GW4-17.5 | 17.5 | 400A | 40 | 16 |
| 630A | 50 | 20 | ||
| 1000A/1250A | 63 | 25 | ||
| GW4-24 | 24 | 400A | 40/50 | 16~20 |
| 630A | 50/63 | 20~25 | ||
| 1000~1250A | 50/80 | 20~31.5 | ||
| GW4-40.5 | 40.5 | 630A | 50/63 | 20/25 |
| 1250A | 63/80 | 25/31.5 | ||
| 1600A | 80/100 | 31.5/40 | ||
| 2000A | 80/100 | 31.5/40 | ||
| GW4-72.5 | 72.5 | 630A | 50 | 20 |
| 1250A | 63/80 | 25/31.5 | ||
| 1600A | 80/100 | 31.5/40 | ||
| 2000A | 80/100 | 31.5/40 | ||
| GW4-126 | 126 | 630A | 50 | 20 |
| 1250A | 63/80 | 25/31.5 | ||
| 1600A | 80/100 | 31.5/40 | ||
| 2000A | 80/100 | 31.5/40 |
