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

The 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 life cycle costs in a flexible product layout.

It is a sustainable and eco-efficient switchgear that has proven capabilities to reduce the CO₂ equivalent (CO₂ eq) emissions during the complete life cycle of the product, compared to conventional SF₆ and other SF₆-free technologies.

EconiQ ELK-04, 145 kV uses a gas-mixture of carbon dioxide (CO₂), oxygen (O₂) and small amounts of fluoronitrile (C4-FN) that delivers significantly lower life cycle assessment (LCA) ratings over the lifetime of the equipment.

The eco-efficient equipment is based on the solid legacy of ELK-04, 145 kV, which has the largest installed base of any sub-transmission GIS in the world. It uses the same proven gas-circuit breaker technology that has been utilized for decades in transmission systems.

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 in the market
• Exceptional engineering design
• Based on well-proven and reliable gas circuit breaker technology

• No risk of accidental leakage of SF₆
• Excellent environmental performance due to the minimum use of material