The Full Form of LRA is Locked Rotor Amps.
The amps that an electric motor draws for about half a second that are about 5X the normal amp draw of the motor are called locked rotor amps. Regarding DC motors, the voltage across the motor, is proportional to the RPM of the motor. The current through the motor is proportional to the torque produced by the motor.
LRA
means
Locked Rotor Amps
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