It is a known factor that not all loads benefit from voltage reduction / optimisation. Could you please identify suitable loads for energy saving by voltage reduction?
Although it is true to say that not all loads offer energy saving from voltage reduction, most loads will benefit from being fed with a reduced voltage as their designed voltage is probably at or closer with a reduced voltage than it is with the unregulated mains supply, and the added benefit of keeping the phases balanced to within 1% is always preferable. Loads which generally offer significant energy savings include Refrigeration, chillers, motors (excluding VSD), lighting (most types except those with high frequency ballast), some temperature controlled equipments, pumps, although there is no definitive list.
