do not try to electric short for braking it just makes them spin faster
i've never heard of this. maybe the user was opening the circuit and not shorting?
adam
my 30 pole motor conversion shows this feature quite readily.
At 1750 rpm, shorting the motor causes 9 amps of line current to flow, which is only 240 watts of copper loss, combined with 50 watts iron loss makes about 1/2 hp shaft input (open circuit would be 100vac at 435 hz).
But into a resistive load, the motor would have no problem delivering 3 amps at 100vac per phase, which would be 900 watts of real power.
imagine for a moment the copper windings have zero resistance, and the rotor has no iron loss.
all of a sudden, turning the rotor is effortless.
maximum torque will be at some point where the leakage inductance or airgap inductance's reactance is equal to the load resistance+ copper resistance.
if i'm not mistaken that is.