Hi there folks. This is my first post and I hope someone can help regarding some questions I have regarding 'voltage optimisers'.
As I understand them, they are basically transformers and reduce incoming supply voltage. What effect do they have on older equipment?
Would I be correct in thinking that anything designed for older equipment - pre1995, 240v should function correctly at voltages as low as 216v (240v less 6% - lowest supply voltage, less again 4% of 240v for max volt drop within installation). Post 1995, 230v equipment should be capable of running at 207v for the same reasons.
It is proposed that our incoming voltage is reduced to 220v. Surveys have shown that it will go as low as 217v including site volt drops due to supply variations. I am confident that the majority of equipment will be fine as it is mostly post 1995.
The problem may be some older three phase crane motors whose plates give an operating voltage range of 400-440v.
If the supply voltage, single phase,is reduced to 220, dropping to 217 occassionally - i.e. averaging 380v three phase, dropping to as low as 375v, will the motors still work? What problems am I likely have with them. Will I have to change inverter setups?
Any help anyone can give would be greatly apreciated.