2 speed motor 3 phase 380 volt motor

[bergie]

thanks mikilanis your drawing looks perfect . 2 overload relays. 5barware sorry but the 2 overload current contacts just makes no sense. what is it for? the rest of the drawing looks good.

[mikilianis]

The contact on the overload unit, usually identified by the numbers 95 and 96 is a normally closed contact( which open when the overload unit opens the circuit due to excessive current drawn by the motord ) and is used in the control circuit in series with the stop, when the contact opens the contactor is de-energised

[bergie]

http://www.theforumsa.co.za/forums/a...4&d=1395062004

mikilianis, i actually meant 5barware's drawing of the overload contacts.he has drawn it connected it to the star point,which doesnt make sense.

[mikilianis]

Hi bergie apolagies maybe 5barware is useing the star point as neutral and energising the coils from a live to the star point I do not know maybe it is the chinese way of wireing up a cotactor strange I must admit.