Surge Arresters

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