In an electric motor, the nominal torque is the torque required to produce the nominal power at the nominal speed, and it should be noted that in the previous analyzes the motor voltage and frequency were considered constant, so the motor torque is a quadratic function of the electrical voltage. The standard NBR 7094 basically establishes three types of motors, according to the necessary values of torque, slip and starting current being the motors of category D, category H and category N.

The conjugate is an extremely important parameter, applied to analyze the behavior of the induction motor reelcraft 5600OMP. The starting or locked-rotor torque is the minimum torque value that the motor develops in the standby condition, considering that the applied voltage and frequency are nominal. The minimum torque is the minimum torque value the motor will develop during rest until the maximum torque rotation occurs. The maximum torque is the maximum torque value that the motor will develop, provided that the applied voltage and frequency are nominal and that there is no sharp decrease in the speed.