Do voltage optimisers require annual maintenance?

Domestic type voltage optimisers are generally sold as ‘fit and forget’ types and use static torroidal core technologies. Larger voltage optimisers for commercial or industrial sites including single and three phase systems may be either static transformer or mechanical stabiliser types and should be inspected for wear and tear and maintained annually. Fixed voltage optimisers should also be checked to ensure that their voltage reduction settings match the needs of the site; the mains power supply voltage on a site can change during a 24hour period with load and seasonal demands.



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