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

Utility Distribution Networks

Reliable transformer solutions for urban and rural power distribution systems, helping ensure stable voltage conversion and continuous power supply.

Industrial Facilities

Industrial Facilities

Suitable for factories, workshops, production lines, mining sites, and industrial power systems that require long-term stable operation.

Renewable Energy Projects

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

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

  • Oil immersed transformers
  • Dry type transformers
  • Pad mounted transformers
  • Distribution transformers
  • Power transformers

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

What is GIS gas insulated switchgear used for?

GIS is used for power control, protection, isolation, and distribution in medium and high voltage substations, urban grids, and industrial power systems.

Why does GIS use SF6 gas?

SF6 gas provides excellent insulation and arc-extinguishing performance, allowing GIS equipment to achieve a compact structure and reliable operation.

Where is GIS most suitable?

GIS is suitable for projects with limited space, high reliability requirements, heavy pollution, humid environments, and complex operating conditions.

What information is needed for quotation?

Please provide voltage level, rated current, short-circuit current, system diagram, incoming and outgoing circuit quantity, installation environment, quantity, and applicable standards.

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