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Please explain open transition and closed transistion
system in Star delta Starter?and also the state difference
of both?
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Answer Posted / dave
worked for carrier a/c 35 years. in a standard open
trastion when charging from star to delta the motor
effectively slows momenatrily for a 1/5 of a scond. closed
traansition this does not happen ,the change from star to
delta is less noticeable.closed transiontion has a fourth
contactor and resistor bank to prevent that 1/5 of second
power loss to the windings .I need some wiring digrams of
closed transion staters to show the tecs how this works
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