EconiQ^™ gas-insulated switchgear (GIS) ELK-04, 145 kV

EconiQ ELK-04, 145 kV is the most robust SF₆-free gas-insulated switchgear (GIS). It combines a low carbon footprint, superior reliability and low lifecycle costs in a flexible product layout.

It is sustainable and eco-efficient product proven to significantly reduce the CO₂ equivalent (CO₂ eq) emissions during the complete lifecycle of the product, compared to the SF₆ solution.

Based on the well-known modular design of ELK-04 with the largest installed base of any sub-transmission GIS worldwide. It offers easy operation at high-performance ratings and broad flexibility for optimizing substation layouts.

EconiQ ELK-04, 145 kV is using a gas-mixture of Fluoronitriles (C4-FN), Carbon dioxide (CO₂) and Oxygen (O₂). This mixture essentially eliminates the CO₂ equivalent emissions of the insulation medium compared to SF₆ gas.

EconiQ is Hitachi Energy’s eco-efficient portfolio for sustainability where products, services and solutions are proven to deliver exceptional environmental performance.
 

• Power transmission
• Integration of renewable power generation units to the grid
• Offshore and onshore wind power connections

• Most reliable eco-efficient GIS solution on the market
• Exceptional engineering design
• Using a well-proven gas circuit breaker technology
• Softer switching characteristic of gas circuit breakers with low stress to neighbouring quipment
• Based on the ELK-04 product family with the largest installed base of any sub-transmission GIS
• Earthquake resistant up to ground acceleration of 1g

• Future proof to environmental regulations
• No risk of accidental leakage of SF₆
• Transparent environmental performance, thanks to the detailed product life cycle assessment