Zago Electric
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Model: (GTP7.1)-40.5 Series
The 40.5 kV SF6 gas-insulated metal-enclosed switch equipment employs micro-positive pressure SF6 gas as the insulating medium, with dual gas chambers and top busbar extension connections. It is applied in 40.5 kV transmission and distribution systems to receive and distribute electrical energy, implementing control, measurement, protection, and intelligent monitoring of the power system. It is suitable for various load types and frequent operation scenarios, serving industrial conditions, thermal power, wind power, photovoltaic, and energy storage facilities.
| Items | Unit | Parameter |
|---|---|---|
| Rated voltage | kV | 40.5 |
| Rated current | A | 1250 / 2500 |
| Rated frequency | Hz | 50 |
| Rated power frequency withstand voltage (To ground) | kV | 95 |
| Rated lightning impulse withstand voltage (Peak) | kV | 185 |
| Rated short-circuit breaking current | kA | 25, 31.5 |
| Rated short-circuit closing current (Peak) | kA | 63, 80 |
| Insulating gas | - | SF6 |
| Annual gas leakage rate | %/Y | ≤0.05 |
| IP grade (Air box / Cabinet) | - | IP65 / IP4X |
| Material (Cabinet) | - | Aluminum-zinc coated plates |
| Material (Gas tank) | - | Stainless steel plates |
