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Gas-insulated transmission line (GIL): Hitachi Energy's high standard of quality control and advanced R&D processes ensure superior product quality.
The outstanding product design expertise with project emulation and highly experienced engineers enable a best-in-class gas-insulated line to customers worldwide.
GIL offers can be customized to project requirements related to temperature variations, ensuring proper foundations or solving vibration challenges due to multiple factors (e.g. transformer connection, cross-railway etc.)

Hybrid Switchgear for 72.5 to 420 kV: Plug And Switch System (PASS) switchgear is a compact hybrid switchgear fully assembled and high-voltage tested in factory, for rapid installation and energization. The PASS product family covers voltages from 72.5 to 420 kV with breaking current capability ranging from 31.5 to 63 kA. PASS encloses all functions of a complete switchgear bay in a single module.
The hybrid design makes use of traditional air-insulated busbar to connect with other equipment in the substation, while enclosing all high-voltage bay functions in a single-phase gas-insulated housing, allowing outdoor installation and a significant space saving compared to traditional AIS equipment.

Air-insulated switchgear (AIS): Hitachi Energy focuses on the continual development of new technologies to increase the eco-efficiency, availability and reliability of AIS substations products and have a century of practical experience to rely on. AIS primary substation equipment contains of a portfolio up to 1100 kV including live tank circuit breakers (LTB), dead tank circuit breakers (DTB), instrument transformers, disconnectors, surge arresters, monitoring and controlled switching.

In addition to our product technology, Hitachi Energy proudly stands with our customers via our global Service organization. Hitachi Energy offers significant risk management opportunities, in order to reduce our customers project risk profile. We are your partner in the project, with unsurpassed experience, to ensure you reach your milestones.

Gas-insulated switchgear (GIS): Gas-insulated high-voltage switchgear (GIS) is a compact metal encapsulated switchgear consisting of high-voltage components such as circuit-breakers and disconnectors, which can be safely operated in confined spaces. GIS is used where space is limited, for example, extensions, in city buildings, on roofs, on offshore platforms, industrial plants and hydropower plants. Hitachi Energy has always been and continues to drive innovation in GIS technology in ratings, operations, switching technology, smart control and supervision, and compactness. As a result, Hitachi Energy's GIS offers outstanding reliability, operational safety and environmental compatibility. It provides a complete range of products for all ratings and applications from 72.5 kV to 1200 kV matching current and future requirements for modern switchgear.

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