Description
The ZF12-72.5/126/145 GIS is an advanced gas-insulated switchgear designed for high-performance electrical applications. This innovative switchgear features a three-phase sharing enclosure that utilizes a self-energized control device in the circuit breaker. By harnessing the energy generated from the arc, this design significantly enhances arc quenching capability, resulting in a superior breaking capacity while reducing the necessary operating force. Both the circuit breaker and the earthing and disconnecting switch are equipped with robust spring and motor operating mechanisms, ensuring improved operational reliability and efficiency in high voltage scenarios.
Specifications
| Item | Unit | ZF12-72.5 | ZF12-126 | ZF12-145 |
|---|---|---|---|---|
| Rated Voltage | kV | 72.5 | 126 | 145 |
| Rated Current | A | 3150 | 3150 | 3150 |
| Rated SF6 Gas Pressure (20℃) | Mpa | 0.6 (CB & CT compartment) | 0.4 (Other compartments) | 0.4 (Other compartments) |
| Rated Peak Withstand Current | kA | 100 | 100 | 100 |
| Rated Short Time Withstand Current | kA | 40 (3s) | 40 (3s) | 40 (3s) |
| Rated Short Circuit Breaking Current | kA | 40 | 40 | 40 |
| First Pole to Clear Factor | – | 1.5 | 1.5 | 1.5 |
| Over Voltage Multiple of Reversal Phase | – | 2 | 2 | 2 |
Additional Information
- Ideal for high voltage electrical distribution systems.
- Enhanced safety and operational reliability in critical applications.
