Delta starter circuit
circuit is used to start motor working using star connection
for some period and then switch to delta connection. This
method is used to start high power motors.
we click on "START" button, "A" relay
is activated and its contact activates relay "M",
which connects motor to power supply.
contacts of relay "A" connect motor windings in
star connection. Motor starts rotate using low voltage.
relay "ZR" is also activated by "START"
button. When time relay finishes counting its normally closed
contact activates and relay "A" is deactivated,
which activates relay "B".
"B" converts motor connection type to delta. Auxiliary
contact of relay "B" deactivates time relay "ZR".
we click on "STOP" button all relays deactivated
and motor circuit cut off power supply.
for that simulation is found here