Overview:
The isolating switch is of a unipolar type, and the three poles can be connected by a connecting rod into a three-pole type that can be linked. It is equipped with CS11 or CS8-6D manual mechanism. CS17 is used for the isolating switch with double grounding device. (The electric mechanism can be equipped as needed).
The isolation switch has reasonable structure and flexible operation: it can be used for single pole or three poles, and the installation is convenient: the touch knife is opened, and the insulation is safe and reliable. It can also be grounded or double grounded according to user needs.
Models and implication
Mainly technical parameters
| Name | Unit | GW4-12 | GW4-40.5 | GW4-72.5 | GW4-126 | GW4-126G | GW4-145 | |
| Rated voltage | KV | 12 | 40.5 | 72.5 | 126 | 126 | 145 | |
| Rated current | A | 200 400 630 1000 1250 | 630 1000 2000 2500 | 630 1250 2000 2500 | 630 1250 2000 2500 | 630 1250 | 630 1250 2000 2500 | |
| Rated short-circuit withstand current (RMS) | KA | 16 20 25 | 20 31.5 40(46) | 20 31.5 40(46) | 20 31.5 40(46) | 20 31.5 | 20 31.5 40(46) | |
| Rated peak withstand current (RMS) | KA | 40 50 63 | 50 80 100(104) | 50 80 100(104) | 50 80 100(104) | 50 80 | 50 80 100(104) | |
| 1min power frequency withstand voltage (peak) | To the ground | KV | 42 | 80 | 140 | 185 (230) | 185 | 275 |
| Fracture | 48 | 90 | 160 | 210 (265) | 210 | 315 | ||
| Lightning impulse withstand voltage (peak) | To the ground | 75 | 185 | 325 | 450 (550) | 450 | 650 | |
| Fracture | 85 | 215 | 375 | 520 (530) | 550 | 750 | ||
| Terminal horizontal tension | N | 250 | 490 (735) | 735 | 735 | 735 | 980 | |
| Monopolar weight | kg | 60 | 80 | 200 | 240 | 240 | 300 | |
| Remarks | Suitable for altitude 2000m | Suitable for 110kv altitude 4000m | ||||||
