ECN Forum Forums Technical Discussion Electrical Theory and Applications Braking of single phase induction motor

If I remember correctly, injecting a DC equal to 250% the Induction Motor's FLA will result in a Braking effort of 25% the Starting Torque.
This is for "Standard" Squirrel-Cage Rotor type Induction Motors (not Wound Rotor or Synchronous).

So look at supplying 250% the Motor's rated FLA.

DC Voltage will be what ever is required to drive 2.5x the FLA into the Stator Windings (around 6-12VDC may be ample).

-- Scott (EE)