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	Subject - unbalance load sijagur What will happen to an induction motor in delta connection, if the current in each winding are not same (unbalance). Thank you in advance JimmyDee This is a good question that I'm going to answer that I'm not really 100% sure about. I know that we build devices we call "Add-a-Phase" that produces a condition of a second and third phase to run 3 phase motors from single phase. These motors seem to run very well and I'm sure the windings are not balanced and the second and third phases are not even in the correct phase angle with each other. This is the best I can do for you. What is the condition that would cause this to happen for you? Jim sijagur Thank you Jim. This question actually based on my experience when i measure a 3 phase induction motor current, and i got that current in each phase are not same, for example : L1~10 A ; L2~11 A ; L3~12A. In my opinion, this may be caused by resitance and reactance of the windings that change after several years operation. So, if they supply with balance 3 phase voltage, the currents that flow in each winding are not same. If the windings connection are in star (Y) formation, the unbalance current will flow trough the neutral, but i'm curious if the windings connected in Delta formation. Will the unbalance current affect the motor performance? or can unbalance current causing the motor become damage? -andi- relbas First thing that you need to check if the voltage between the phases in even. Usualy motor manufacturs company will allow up to 4% differential on the voltage