Periodic Intermittent Duty: The class of duty making use of the ability of electric motors to operate with overload is called Periodic Intermittent Duty. The load on the motor is…
Motor Rating Various Duty Cycles: From the point of view of calculation of motor rating various Motor Rating Various Duty Cycles can be broadly classified as: Continuous duty. Fluctuating loads.…
Classes of Motor Duty in Electrical Drives: IS: 4722-1968 categorises various load time variations encountered in practice into eight standard Classes of Motor Duty in Electrical Drives: Continuous duty. Short…
Rating and Heating of Motors Articles: Electric Motor Power Loss and Heating: An Electric Motor Power Loss and Heating occurring in its various parts such as copper losses occurring in…
Electric Drives Articles: This Electric Drives Articles which includes the following topics: A Simple Electric Motor Characteristics of DC Motor Speed Torque Characteristic of Separately Excited DC Motor Speed Torque…
Selection of Electric Drive: For selection of electric drive motor it is essential that the conditions of service are well known. It is not sufficient to simply specify the output…
Electrical Power Engineering Multiple Choice Questions and Answers (MCQs) Part 1: 1. The basic elements of an electric drive are : (a) electric motor and the transmission system. (b) electric…
Motor Power Rating Articles: Selection of Motor Power Rating: The Selection of Motor Power Rating of a motor for a specific application must be carefully chosen to achieve economy with…