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Surge arrester products, services and solutions | Hitachi Energy

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Surge arresters are an essential component for increasing the reliability of the electricity network as they serve as the primary protection against atmospheric and switching overvoltages. Hitachi Energy has more than 75 years of experience in designing and manufacturing surge arresters. The business provides a complete range of products for low, medium and high voltage applications, comprising of solutions for AC and DC systems up to 1,100 kV.

Hitachi Energy is pioneering a new digital solution designed to enhance its innovative Spark Prevention Unit (SPU) technology that is driving grid resilience against wildfires. The Wireless SPU Indicator adds a significant advantage to keep important assets available. By enabling remote monitoring, utilities optimize their maintenance programs and replacement planning.

Hitachi Energy´s surge arresters are the primary protection against atmospheric and switching overvoltages. They are generally connected in parallel with the equipment to be protected to divert the surge current. The Online Buyer´s Guide can assist you in the selection of the appropriate surge arrester for your given application.

In this compelling film produced by BBC StoryWorks, we share the journey of our customer United Energy in building a resilient and reliable grid in Victoria, one of the highest fire-risk areas in the world. With the help of our innovative technology, United Energy has significantly reduced the risks of fire starts, protecting communities, wildlife and the environment. 

Externally gapped line arresters (EGLA) assuring protection of 765 kV extra-high voltage network of American Electric Power against lightning and switching surges

Hitachi Energy's PEXLINK line surge arrester concept safeguards high voltage network against lightning strikes

Hitachi Energy's surge arresters are the primary protection against atmospheric and switching overvoltages. Hitachi Energy offers a complete range of surge arresters for high and medium voltage applications. The range comprises of AC and DC solutions up to 1,100kV and arresters for special applications like railways, DC-voltage limiting devices and many other purposes. The designs comply with the IEC 60099-4 and ANSI/IEEEC62.11.

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© Hitachi Energy Ltd. 2024. All rights reserved

medium voltage surge protection © Hitachi Energy Ltd. 2024. All rights reserved