I know very little regarding electric stuff, at my location in Chiang Rai the supply appears to be all over the shop, my normal floor fan will run fine and then the speed will drop by half and after some time return to normal.
Just checking if its possible to fit a AVR on the main switch box to get a more even supply, my main concern is to the AC type invertor, that i i am sure is not getting a constant supply of required power.
In my main house in Ubon i have 3 phase and its either full whack or power off, never have any fluctuations.