Start Current

Autotransformer $I subscript m o t o r space s t a r t end subscript equals fraction numerator percent sign T A P over denominator 100 end fraction cross times I subscript d o l end subscript$

Autotransformer $I subscript L i n e space s t a r t end subscript equals open parentheses fraction numerator percent sign T A P over denominator 100 end fraction close parentheses squared cross times I subscript d o l end subscript$

Star Delta $I subscript s t a r end subscript equals 1 third cross times I subscript d e l t a end subscript$

» Formulae for Rotating Machines