40.5kV Indoor Gas-Insulated Switchgear
This indoor gas-insulated switchgear is designed for a three-phase AC power system at 50Hz and 40.5kV. It is used for switching load current, overload current, and fault current, as well as transforming and isolating lines.
Technical Specifications
Product Overview
40.5kV Indoor Gas-Insulated Switchgear
The ZFN13-40.5(Z) GIS is a robust, metal-enclosed and metal-armoured switchgear utilizing SF6 gas for superior insulation. Engineered for high performance, it features a longitudinal three-pole layout and utilizes a vacuum interrupter with a spring mechanism for frequent operational reliability. Integrated with a 3-position switch for busbar disconnection and earthing, this system provides comprehensive mechanical and electric interlocking for enhanced safety.
Key Features
System Highlights
- SF6 gas-insulated medium
- Vacuum interrupter with spring mechanism
- Reliable 3-position switch configuration
- Advanced mechanical and electric interlocks
- Intelligent module integration for smart grid requirements
Electrical Ratings
Rated Performance
40.5 kV
Rated Voltage
1,250 A
Rated Current
31.5 kA
Short-time withstand current
Insulation Performance
| Characteristic | To Earth/Pole | Across Isolating Distance |
|---|---|---|
| 1min Power Freq Withstand (kV) | 95 | 110 |
| Lightning Impulse Withstand (kV) | 185 | 215 |
Operational Specs
SF6 Gas Management
- CB Compartment Pressure: 0.6 MPa
- Other Compartments Pressure: 0.4 MPa
- Annual Leakage Rate: ≤0.5%
- Operating Frequency
- 50/60 Hz
