Читать книгу Gas Insulated Substations - Группа авторов - Страница 14

Today, metal‐enclosed gas‐insulated switchgear (GIS) is indispensable for safe and reliable power grids. The long experience of more than 50 years of worldwide operation in all climatic zones, onshore and offshore installations, speak for an excellent. GIS is mainly used where space is at a premium or environmental conditions significantly impact the reliability of insulators.

This means above all in urban and coastal areas, where load and the importance of reliability is increasing worldwide. The compact size in combination with modular functions offers a high degree of design diversity, enabling not only outdoor but also more easily indoor and underground installation with the least environmental impact. GIS also stands for more safety; the accessible points of live system parts can be reduced to a minimum. If the connections are realized with gas‐insulated lines (GIL) or power cables and without overhead lines, this can even become possible altogether. Today, GIS are available for AC and increasingly also for DC applications.

The GIS success is therefore well‐founded; GIS are made to ensure the best possible balance between design, materials used, maintenance effort, and maintenance intervals.

The development continues, on the way to a carbon‐free economy, alternative gases to SF₆ without greenhouse effect have become more and more important in recent years and will be one of the main innovation drivers for the future. Climate neutrality is only achievable with greenhouse and F‐gas‐free technologies enabling electrical power grids with zero emission.

In addition, digital technologies entering including artificial intelligence enabling even higher reliability and more effective operations management.

I hope you enjoy finding all the latest information on GIS in one book, and I am sure that the book will help you to find answers to specific technical aspects and details.

Dr. Mark Kuschel

CTO High Voltage Gas‐insulated Switchgear

Siemens Energy, Switchgear Factory Berlin, Germany, 2021