Type: Eco-Efficient SF6-Free Extra-High-Voltage Gas-Insulated Switchgear / Modular GIS Platform (550 kV)
Features: Engineered for extra-high-voltage networks up to 550 kV, this sustainable GIS platform delivers high-performance operational reliability alongside low life-cycle ownership costs. It replaces conventional SF6 insulation with an eco-efficient mixture of carbon dioxide (CO2), oxygen (O2), and C4-fluoronitrile (C4-FN), virtually neutralizing the greenhouse gas impact of the insulating medium and markedly lowering total lifetime CO2-equivalent emissions. Built on a modular arrangement, it simplifies field operation while offering flexible arrangement options to streamline and optimize complex substation layouts.
Applications: Extra-high-voltage power transmission networks, integration of utility-scale renewable power generation plants into grid infrastructure, and heavy industrial plant substation systems.
| Technical Parameter / Specification | 550 kV |
| Rated Maximum Voltage | 550 kV |
| Power-Frequency Withstand Voltage (1 min) | 740* kV |
| Lightning Impulse Withstand Voltage (BIL) | 1675* kV |
| Rated System Grid Frequency | 50 / 60 Hz |
| Nominal Continuous Current Rating | 5000 / 6300 A |
| Short-Time Thermal Withstand Current | 63 kA |
| Peak Dynamic Withstand Current | 171 kA |
| Deployment / Environment | Indoor / Outdoor |
