Abstract
Lately, many people may think that there is no need to study direct current motors because their use in industries is very lacking. But finally in recent years direct current motors have developed there are several reasons to continue the popularity of dc motors, the maximum efficiency of long compound dc motors is 43.8081% with large emf against 193.9960 V at load current or load current 5, 91 A and the minimum efficiency of a three-phase induction motor with a rotor winding is 17.8196% with a large emf against 204.9520 A and a load current of 3.42 A. Induction motors are the most widely used machines in industry. In its application, induction motors are widely used for daily needs, as well as for industry. Accurate calculation of back emf and motor efficiency is needed to determine the actual condition of the induction motor which ultimately aims to optimize the overall system performance. The efficiency level of the induction motor is influenced by the losses. The maximum efficiency of a three-phase induction motor with a rotor winding is 84.6419% with a counter emf of 370.8318 V at a load current or a stator current of 5.16 A and the minimum efficiency in a three-phase induction motor with a rotor winding is 80.5003% with a large The counter emf is 369.4386V and the load current is 5.94 A. In this final project, the effect of loading and efficiency is to be analyzed which is a very important problem in electric motors because the motor will continue to be loaded, it will affect the magnitude of the back emf and the efficiency of an electric motor. motorcycle.
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