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Gas-Insulated Switchgear

XD|GE provides high performance, compact and flexible Gas-Insulated Switchgear (GIS) solutions for high to ultra-high voltage power transmission and distribution networks. Supporting a voltage range of 72.5 up to 800kV, XD|GE has delivered more than 20,000 bays around the world.

With a compact, modular design that reduces installation space and maintenance requirements, normal operating life is more than 30 years ensuring a lower total cost of ownership. GE designs and delivers technology solutions that provide among the highest level of performance and reliability to meet customer’s operating requirements.



The XD|GE Gas-Insulated Switchgear requires low maintenance operation during its total life time. The main components including circuit breakers, disconnectors, earthing switches, and operating mechanisms are designed for a normal operation of more than 30 years.

XD|GE Gas-Insulated Switchgear Product Portfolio

Unit ZF7-72.5 2F7A-126 2F7A-145 2F9-252 2F9-393 ZF9-420 ZF8-550 ZF8-800
Rated voltage kV 72.5 126 145 252 363 420 550 800
Rated current A 3150 3150 3150 4000 4000 4000 4000/5000/6000 5000
Rated frequency Hz 50/60 50/60 50/60 50/60 50/60 50 50/60 50
Rated power frequency withstand voltage, 1 min (*) kV 160 230 275 460 520 650 740 960
rated lightning impulse withstand voltage (*) kV 350 550 650 1050 1175 1425 1675 2100
Rated short circuit breaking current kA 40 40 40 50/63 50/63 50/63 50/63 50
(*) Phase to earth

Features & Benefits

Reliability: Reliability is designed in by reducing the number of moving parts and enclosing live parts to protect the insulation system against external operation.

Durability: We manufacture our products for strength including cold flanging and welding of high-strength aluminum enclosures, epoxy resin casting of insulators, and high-strength aluminum alloy casting using the latest digital machinery technology. Our advanced designs also provide exclusive sealing technology to ensure a leakage rate of less than 0.5% per year.

Compact & Flexible: All XD|GE GIS are designed to optimize the space needed for installation and have customizable electrical setups that allow for new adaptations and upgrades at any time. The compact, modular design along with completely insulated active components allow for maximum performance even with limited space.

Ease of Maintenance: An ergonomic design provides easy bay resulting in less time needed for maintenance and repair.

Lower Cost of Ownership: Top quality materials and components ensure a maximum life cycle (> 30y) and reduced maintenance over the life of the product. Our designs use advanced materials such as aluminum for enclosures to reduce weight thereby reducing the costs of civil work and foundation preparation.