Do you want to stabilize your mains at a power level of 3 Kw? The standard system with a motor powered Variac, is that the Variac handle the error power. So if your voltage is +- 10% the power will be +- 20%, so you need a Variac to handle 3 kW X .2 = 600 W, or 2.5 A at 230 V.
Did I guess right ?
Frank
- - - Updated - - -
Do you want to stabilize your mains at a power level of 3 Kw? The standard system with a motor powered Variac, is that the Variac handle the error power. So if your voltage is +- 10% the power will be +- 20%, so you need a Variac to handle 3 kW X .2 = 600 W, or 2.5 A at 230 V.
Did I guess right ?
Frank