Why GIS switchgear? The advantages and applications of gas insulated switchgear are discussed 日本

Why GIS switchgear? The advantages and applications of gas insulated switchgear are discussed

With the increasing demand for reliability and efficiency in power systems, GIS Switchgear (Gas-Insulated Switchgear) has become an important part of modern power networks. Whether it is high voltage transmission or industrial applications, GIS equipment has won wide recognition for its superior performance.

GIS スイッチギアとは何ですか?

A GIS switchgear is a switchgear that uses a gas (usually SF6 gas) as an insulating medium. Compared to traditional air insulated switchgear (AIS), GIS has higher insulation performance and a smaller footprint, so it is widely used in high and ultrahigh pressure applications.

Main Advantages of GIS switchgear

コンパクトなデザインでスペースを節約

With a modular design, GIS equipment covers only 10%-20% of the footprint of traditional AIS, making it ideal for space-constrained urban and industrial applications.

高い信頼性と低メンテナンス

SF6 gas acts as an insulating medium, greatly reducing the risk of arcing and short circuits. Because the device is highly enclosed, the external environment has little impact on the device, and the maintenance requirement is low.

環境に優しいソリューション

While traditional GIS equipment relies on SF6 gas, some manufacturers are now introducing low emission or no SF6 alternatives to meet increasingly stringent environmental regulations.

厳しい環境に適応する

GIS equipment can operate in environments with high humidity, pollution or salt spray, and is suitable for coastal, mining and other extreme conditions.

GIS Ring Main Unit (RMU) : The core of the power distribution system

GIS Ring network Unit (GIS RMU) is an important subtype of gas insulated switchgear, which is widely used in medium voltage distribution network. It is commonly used in the following scenarios:

Urban distribution network

工業団地

Modernization of rural power grids

Renewable energy systems, such as wind and photovoltaic power stations

GIS RMU features:

Highly integrated: Combined with circuit breakers, isolating switches and ground switches.

Modular extensions: Module configurations can be easily added or changed on demand.

High reliability: Provides reliable fault isolation and load transfer functions to ensure the continuous operation of the power grid.

Application fields of GIS devices

Power transmission and distribution systems

In high-voltage and ultra-high-voltage substations, GIS equipment can improve the stability of power transmission and reduce power loss.

産業施設

In petrochemical, mining, steel and other industries, the power stability is very high, GIS equipment is widely used because of its reliability and compact design.

鉄道交通

Urban subway and high-speed rail systems require efficient and safe power supply systems, and GIS equipment is the first choice due to its small footprint and low maintenance requirements.

Renewable energy access

In wind and solar power plants, GIS equipment is used to integrate and protect power output, ensuring stable access to the grid from renewable energy sources.

Future Trends: The rise of green GIS devices

As environmental regulations become more stringent, GIS equipment manufacturers are developing green gas alternatives to replace traditional SF₆ gas. These alternatives not only reduce carbon emissions, but also reduce environmental risks. In the future, more SF less gas solutions will become common in the market, providing a more sustainable option for the power industry.

まとめ

As the key equipment of modern power system, GIS switchgear and GIS ring network unit have obvious advantages in reliability, space utilization and adaptability. Whether it is the upgrading of urban distribution networks or the power support of industrial parks, GIS equipment can provide efficient and reliable solutions.

If you have more needs for GIS switchgear or ring network units, please contact us for more professional customized services.

Keywords: GIS switchgear, gas-insulated switchgear, GIS RMU, GIS ring main unit, ring network cabinet, gas insulated switchgear, distribution network solution