1100kV 6300A Gas Insulated Substation GIS
The 1100kV 6300A Gas Insulated Substation (GIS) is designed for controlling, measuring, protecting, and transforming electric transmission lines. It consists of a circuit breaker, current transformer, disconnector, earthing switch, main busbar, incoming and outgoing line bushing and local control cabinet.
Technical Specifications
Overview
High-Voltage Gas Insulated Substation
The 1100kV GIS is a high-performance electrical substation enclosed in a sealed environment with insulating gas for reliable power transmission. Designed for demanding applications, the system integrates circuit breakers, disconnectors, and busbars into space-saving, gas-tight modules. This configuration enhances operational safety and grid stability while providing protection against environmental factors in space-constrained installations.
Key Performance Metrics
Performance Highlights
Technical Specifications
Electrical Parameters Table
| Parameter | Value |
|---|---|
| Rated Frequency | 50/60 Hz |
| Rated Peak Withstand Current | 135 kA |
| Rated SF6 Annual Leakage | ≤0.5% |
Insulation Levels
Dielectric Strength
- Power Frequency Withstand (To Earth/Between Poles): 1100 kV
- Power Frequency Withstand (Across Isolating Distance): 1100(+635) kV
- Lightning Impulse Withstand (To Earth/Between Poles): 2400 kV
- Lightning Impulse Withstand (Across Isolating Distance): 2400(+900) kV
Operating Environment
Rated SF6 Gas Pressure (20°C)
- CB Compartment: 0.65 MPa
- Others: 0.45 MPa
Features
- Core Capabilities
- 1100kV Voltage Level8000A Busbar Capacity50kA Breaking CapacitySpace-Efficient Design
