Answer / rajendra

not work star delta method in single phase motor because this method use in 10 hp to 25 hp 3 phase motor.

Answer / omarya

star delta method is not required in single phase motor
star & delta is used only three phase load.

Answer / william lobo

Well today we have DOL direct on line starters for upto 100 hp and more too.
So Star Delta for 1 ph motor does not arise. Question itself is wrong. No practical question.

Answer / guest

Star-Delta motor starting method is for reducing the
starting current by dividing line current with 3 square
that is considered in 3 phase only, and also most of single
phase motors are small motor having small starting current
so it is no point to reduce the starting current.

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