3 Phase Automatic Changeover Switch Circuit Diagram. Circuit diagram 3 phase automatic ch. All the wiring connections are same as above for manual operation of three phase changeover switch but the switching operation is automatic.
All the wiring connections are same as above for manual operation of three phase changeover switch but the switching operation is automatic. In case of emergency breakdown the automatic transfer switch will automatically divert the switching position to the generator supply and when the main supply restores it will. Fig 5 shows 4 poles 3 phase automatic transfer switch ats connection to the main distribution board.
This contact being in series with the coil of the other contactor will not allow the other contactor to close.
3 phase manual changeover switch wiring diagram or three phases manual transfer switch wiring diagram. Of the system switch r is the switch controlling the red phase switch y is the switch controlling the yellow phase switch g is the switch controlling the green phase switch o is the reset switch and the buzzer is the gen fault indicator. Three phase auto changer circuit. A contactor when closed opens its own auxiliary contact.