This document introduces the features and functions of gas-insulated metal-enclosed switchgear, including economic efficiency, high reliability, safe fully enclosed structure, high gas tightness, low operating costs, and maintenance-free. The equipment has the advantages of small size, light weight, and long service life, making it suitable for sensitive environments such as residential areas and city centers. Additionally, the equipment meets environmental requirements and has a compact structure and flexible modular system.
The Siemens 8DN9 Gas‑Insulated Switchgear (GIS) is a metal‑sealed, high‑voltage device rated up to 252 kV, 50 kA short‑circuit current and 3150 A continuous current. This manual provides detailed information on the equipment’s construction, technical specifications, and safety requirements.
It includes step‑by‑step operating procedures, arc‑extinguishing chamber description, transformer and current‑transformer modules, typical layout diagrams, and maintenance guidelines to ensure reliable performance in high‑voltage substations. This manual is written in Chinese.
| Rated Voltage | 252 kV |
|---|---|
| Frequency | 50/60 Hz |
| Operating Temperature Range | -25 °C to +40 °C |
The 8DN9 GIS is rated for 252 kV.