Temperature rises in electrical machines as related to the properties of thermal networks

The synthetic loading of three-phase induction motors using microprocessor controlled power electronics

“…Calculating the temperature rise of a machine based on the total power losses and loss distribution is not practical, due to the complexity of the motor construction, although attempts have been made [Bates and Tustin, 1956;Mellor, Roberts and Turner, 1991;Sarkar, Mukheijee and Sen, 1991]. The rotor temperature rise measurement has not been given much consideration by other authors when investigating the skin effect of a machine with the DF supply, due to the difficulty in accessing the rotor for measurements.…”