The stop button is connected in series so will effectively override the start button.
Start by checking battery voltage and then use a test light to check for power at the starter when the button is pressed. If you have power at the starter with the button pressed it could be a bad starter. If no power at the starter then check into wiring and/or relays.
because at the starting the induction motor drawn a heavy current thats why we use starter to increase the starting resistance of the induction motor!
You never need a starter for a three-phase motor.
A starter is unnecessary because the stator produces a rotating magnetic field.
by motor starter
Star delta starter
you can't
U cannot get more than one starter without trading kyogre239
yes
(single-phase assumed). It will probably just sit and buzz, drawing the starting current. But give it a spin and it will start up in either direction.
capacitive start motors start by themselves however a normal single phase induction motor requires a starter motor to 'kick-start' the motor into action.
I assume a 3 phase, AC induction motor. A star delta starter or a soft starter can be used. A soft starter is better compared to a star delta starter, but it is more expensive.