Star To Delta Wiring Diagram. Star delta starter is a common used in domestic and industry sector to drive variant application such as chiller water pumpmachineryair compressor and many more equipment. Low starting torque.
How star delta control diagram works is shown by animation and changing color. In the above star delta starter control circuit wiring diagram with timer and normally close push buttonnormally open push button switch. Line voltage on primary side 3 x phase voltage on primary side.
One is power circuit and another one is control circuit.
Secondary phase voltage k x primary phase voltage. Now transformation ration k secondary phase voltage primary phase voltage. Secondary phase voltage k x primary phase voltage. The initial connection should be in the star pattern that results in a reduction of the line voltage by a factor of 13 577 to the motor and the current is reduced to 13 of the current at full.