Product Overview
Hybrid SF6 Gas Insulated Switchgear (HGIS) for High Voltage Substations
High Voltage GIS Switchgear for Reliable Power Transmission and Substation Applications
Hybrid SF6 Gas Insulated Switchgear (HGIS) is a compact and reliable high-voltage switching solution that combines gas-insulated switching components with air-insulated busbar systems. Designed for modern power transmission and distribution networks, Hybrid GIS helps reduce substation space requirements while maintaining high operational reliability and installation flexibility.
It is widely used in high-voltage substations, power plants, utility grids, and renewable energy projects, providing efficient switching, protection, and isolation for electrical power systems.
Key Features
Compact and Space-Saving Design
The integrated modular structure reduces substation footprint and makes Hybrid GIS suitable for projects with limited installation space.
High Operational Reliability
Gas-insulated switching components provide dependable electrical insulation and switching performance under demanding operating conditions.
Faster Installation and Commissioning
Factory-assembled modules help simplify on-site installation, reduce construction work, and improve project efficiency.
Reduced SF6 Gas Consumption
Compared with some conventional GIS configurations, hybrid designs can reduce SF6 usage, depending on the equipment design and voltage level.
Flexible System Configuration
Hybrid GIS combines gas-insulated equipment with air-insulated busbars, allowing flexible integration into different substation layouts.
Hybrid (SF6) GIS Technical Specifications
The following table uses a 145 kV HGIS product as a reference example. Actual specifications depend on the selected model and manufacturer.
Parameter | Specification |
|---|---|
Product Name | Hybrid SF6 Gas Insulated Switchgear |
Product Type | HGIS |
Rated Voltage | 145 kV (reference model) |
Rated Frequency | 50 / 60 Hz |
Rated Current | Up to 3150 A (reference model) |
Rated Short-Circuit Withstand Current | Up to 40 kA (reference model) |
Insulation Medium | SF6 Gas |
Busbar Type | Air-Insulated Busbar |
Installation | Outdoor Substation |
Configuration | Modular / Customized |
Applicable Standards | IEC / Applicable Local Standards |
Main Components
Circuit Breaker: Interrupts normal load currents and fault currents.
Disconnector: Provides electrical isolation for maintenance.
Earthing Switch: Grounds isolated equipment for maintenance safety.
Gas-Insulated Module: Provides insulation and switching functions within sealed compartments.
Air-Insulated Busbar: Connects electrical equipment within the substation.
Current Transformer (CT): Supports current measurement and protection.
Operating Mechanism: Controls circuit breaker opening and closing.
Working Principle of an Hybrid (SF6) GIS
Working Principle
A High Voltage Insulator works by providing electrical isolation between energized conductors and grounded structures.
The insulating material prevents current leakage while the mechanical structure supports electrical conductors and withstands mechanical forces caused by wind, vibration, and operational conditions.
Why Choose Our Hybrid (SF6) GIS
Flexible Product Solutions
Different equipment configurations, operating arrangements, and installation options can be provided according to application requirements.
Technical Documentation Support
Product specifications, drawings, and supporting documents can be provided according to the selected model and project requirements.
Application-Based Selection
Our team can review the intended application and technical requirements to help determine a suitable product configuration.
Project-Oriented Support
Our technical team can review project requirements and provide suitable equipment solutions for different power system applications.
F.A.Q.
Supporting Subheading
A High Voltage Insulator is an electrical component used to provide insulation and mechanical support for high-voltage conductors and equipment.
Common materials include porcelain, glass, and composite silicone rubber depending on application requirements.
They are widely used in substations, transmission lines, switchyards, and power distribution systems.
High voltage insulators are commonly designed according to IEC standards such as IEC 61109 and IEC 60383 depending on the product type.
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WHAT WE DO
Applications
Our high-voltage electrical equipment supports a wide range of power infrastructure projects, from substations and transmission networks to power generation and industrial electrical systems. Equipment selection and configuration depend on the specific application, system requirements, and technical ratings.
High-Voltage Substations
Designed for integration into high-voltage substation infrastructure, supporting power system operation and electrical equipment arrangements.
Power Transmission Networks
Suitable for high-voltage transmission infrastructure, supporting network operation and the integration of electrical equipment.
Power Grid Protection System
Designed for power grid substations and transmission networks, supporting reliable voltage conversion and stable electricity distribution.
Industrial Power Supply System
Suitable for industrial substations and power infrastructure where high-voltage electrical equipment is required.
Solar & Wind Energy Station
Designed for solar and wind power projects, supporting efficient energy conversion and reliable integration with the electrical grid.
Hydropower Plant
Suitable for hydroelectric power stations, providing efficient voltage conversion and reliable power transmission from generation to the grid.
Offshore Substation
Designed for solar and wind power projects, supporting efficient energy conversion and reliable integration with the electrical grid.
Railway Electrification
Railway electrification systems provide reliable power for modern rail transportation, ensuring safe, efficient, and stable train operations.