Electric Motor Speed Torque Characteristics: A Electric motor speed torque characteristics is defined as the relationship between the speed at which it operates and the torque it develops, ω = f(T).…
Difference between Converter Fed and Chopper Fed DC Drives: Difference between Converter Fed and Chopper Fed DC Drives - For speed control of a dc motor it is necessary that…
Special Features of Thyristor Drive Motors: The most commonly used dc motors for thyristor drive are separately excited and series excited dc motors. The thyristor drive motors usually differ from…
Thyristor Control of 3 Phase Synchronous Motor: The synchronous motor is a constant speed motor and it develops torque only at synchronous speed which is directly proportional to supply frequency.…
Starting and Speed Control of Single Phase AC Series Motor: The starting and speed control of single phase AC series motor is carried out by varying the applied voltage. As…
Difference Between AC and DC Welding: The Difference between AC and DC welding is given in table below Particulars DC Welding AC Welding Equipment Motor-generator set or rectifier is required…
Control of Traction Motors Interview Questions and Answers: 1. The resistors employed for control of traction motors are designed for short-time rating. Why ? Ans. Because control resistors are required…
Electric Traction Motors Interview Questions and Answers: 1. Why the magnetic circuit of a traction motor is not made of cast iron ? Ans. Because cast iron cannot withstand continuous…