It should be remembered that in the case of industrial use requiring frequent departures, this specification must be strictly determined, provided for in the design of the device and the motor must be suitably adapted so that it is capable of acting in this manner. However, through the regulators of some machines, it may be necessary to carry out different starts in a relatively short time, making it impossible for the motor to cool properly. The very slow start-up times that can occur when the motor torque is subtly greater than the heavy-duty torque converter should be avoided, as the overcurrent current absorbed at the moment the rated speed is not reached can cause the motor to heat up and cause serious accidents.
In the same way, a counter-current braking, thus, by means of motor lacing tools inversion, generally represents the cost equivalent to three starts. From a broader point of view, in all cases it is essential to ensure that the starting torque is sufficient by choosing a suitable motor, verifying if the power line has specifications necessary to limit the reduction of the starting voltage, keeping the load coupled to the motor under proper operating conditions so that it does not exhibit an abnormal resistant torque.