GW23-126、252 SINGLE-ARM FOLDING HORIZONTAL RETRACTABLE OUTDOOR HIGH- VOLTAGE AC DISCONNECTING SWITCH
Product Overview
GW23-252 high-voltage disconnecting switch is a two-post horizontal telescopic three-phase AC 50Hz outdoor high-voltage switchgear.It isused in power systems with a rated voltage of 252kV. It is used for switching operations under no-load conditions, and for electrical equipment and For electrical isolation between live circuits.
The product complies with GB1985 and IEC62271-102 standards
Working Environment
1. The altitude does not exceed: 2000m
2. Ambient temperature: -40℃ ~+40℃
3. Maximum wind speed: 34m/s 4. Anti-seismic ability: horizontal acceleration: 0.250g; vertical：0.125g acceleration: 0.125g
5.10mm 5. The thickness of icing does not exceed 10mm
6. Insulator pollution level: Ⅲ (25mm/kV), Ⅳ (31mm/kV)
7. There should be no flammable,explosive, chemical corrosion and be no frequent and severe vibrations
Main Technical Parameters
| No. | Item | Unit | Data | ||
| 1 | Rated voltage | kV | 252 | ||
| 2 | Rated current | A | 3150 | ||
| 3 | Rated short-time withstand current | kA | 50 | ||
| 4 | Rated peak withstand current | kA | 125 | ||
| 5 | Rated short time power frequency voltage | To earth | kV | 460 | |
| Fracture | 460+145 | ||||
| 6 | Rated lightning impact voltage | To earth | kV | 1050 | |
| Fracture | 1050+200 | ||||
| 7 | Terminal rated pull force | Longitudinal | N | 1500 | |
| Horizontal | 1000 | ||||
| Vertical | 1250 | ||||
| 8 | Bending Failure Load of Pillar Insulator | N | 8000 | ||
| 9 | Grounding switch induced current switching capability test | Electromagnetic coupling | Rated inductive current | A | 80 |
| Rated inductive voltage | kV | 1.4 | |||
| Electrostatic coupling | Rated inductive current | A | 1.25 | ||
| Rated inductive voltage | kV | 5 | |||
| 10 | Open and close bus conversion current | A | 1600 | ||
| 11 | Mechanical life | Times | 3000 | ||
| 12 | Single pole weight of disconnecting switch | kg | 1050 | ||
Appearance And Installation Dimensions
