GIS Gas Insulated Switchgear
The Gas Insulated Switchgear (GIS) is designed for reliable power control and protection in medium- and high-voltage substations. Using SF6 gas as the insulation medium, it provides a compact structure, strong insulation performance, and stable operation across voltage levels from 10kV to 220kV, making it suitable for utility, industrial, and urban substation applications.
Warranty 1 year
Product Overview
GIS gas insulated switchgear is a high-voltage switchgear system that uses SF6 gas as the insulation and arc-extinguishing medium, commonly applied in medium and high voltage power systems from 10kV to 220kV.
The equipment adopts a fully enclosed structure and integrates circuit breakers, disconnectors, earthing switches, busbars, and related components to achieve power control, protection, and distribution.
With compact structure, high reliability, and strong environmental adaptability, DHDL GIS switchgear is widely used in substations, urban distribution networks, industrial power systems, and projects with limited space or complex operating conditions.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | GIS Gas Insulated Switchgear |
| Voltage Range | 10kV–220kV |
| Insulation Medium | SF6 gas insulation and arc-extinguishing medium |
| Main Components | Circuit breaker, disconnector, earthing switch, busbar, enclosure, and monitoring components |
| Application | Substations, urban distribution networks, industrial power systems, and space-limited power projects |
| Customization | Voltage level, rated current, circuit configuration, layout arrangement, control system, and applicable standards can be customized |
Product Features
Compact Footprint
The three-phase common enclosure design significantly reduces the required installation area, making it suitable for space-limited substations and urban power projects.
High Reliability & Low Maintenance
Stable switching performance and a fully sealed structure support long-term reliable operation while reducing exposure to external conditions and lowering maintenance requirements.
Flexible Modular Design
Modular configuration and flexible connection options make system expansion, layout adjustment, equipment replacement, and future project upgrades more convenient.
Strong Environmental Adaptability
The sealed GIS structure is suitable for high altitude, heavy pollution, humidity, dust, and other complex operating environments.
Applications
Utility Distribution Networks
Reliable transformer solutions for urban and rural power distribution systems, helping ensure stable voltage conversion and continuous power supply.
Industrial Facilities
Suitable for factories, workshops, production lines, mining sites, and industrial power systems that require long-term stable operation.
Renewable Energy Projects
Applied in solar power plants, wind farms, energy storage stations, and microgrid systems for power conversion and distribution.
AI Data Center Power Infrastructure
Suitable for data center campus substations, medium-voltage power intake systems, and reliable power distribution infrastructure supporting high-density computing loads.
Why Choose DHDL Transformer
DHDL provides reliable transformer manufacturing, strict quality control, and project-based technical support for power distribution, industrial, commercial, and renewable energy applications.
Manufacturing Capability
- Transformers
- Distribution Cabinets
- Prefabricated Substation
- Energy Storage Cabinets
- Charging Piles
Quality Control
- Material inspection
- Winding and assembly control
- Drying and oil treatment process
- Routine testing
- Final inspection before delivery
International Standards
- IEC
- ANSI
- IEEE
- GB
- Project-specific technical requirements
GIS gas insulated switchgear is widely used in substations, power plants, renewable energy projects, urban power grids, industrial parks, and space-limited power distribution sites that require high reliability and compact installation.
Compared with AIS, GIS uses SF₆ gas insulation and offers a smaller footprint, higher operating reliability, less environmental impact, and lower maintenance requirements, especially for urban, coastal, high-altitude, and harsh environments.
GIS can be supplied for 72.5kV, 126kV, 145kV, 170kV, 252kV, and higher voltage levels, with configurations available according to project requirements.
Yes, GIS can be customized based on system connection scheme, number of bays, current capacity, short-circuit breaking capacity, installation method, and control and protection requirements.
GIS is designed and manufactured according to the IEC 62271 series standards, with relevant test reports and certification documents available according to project requirements.
Please provide the system voltage, single-line diagram, rated current, short-circuit current, number of bays, installation environment, and project requirements so we can provide a complete technical solution and quotation.
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