Magnetic Tape Recorder Working Principle: The major advantage of using a Magnetic Tape Recorder Working Principle is that once the data is recorded, it can be replayed an almost indefinite…
Concentric Vane Repulsion Type Moving Iron Instrument: A variation of the radial vane instrument is the concentric vane Repulsion Type Moving Iron Instrument. The instrument has two concentric vanes. One…
Types of Single Phase Synchronous Motor: There are two types of single phase synchronous motor, namely, Reluctance Motor Hysteresis Motor Construction of Reluctance Motor and Torque Speed Characteristics: The reluctance…
Speed Control of Induction Motor: Stepless control of speed of induction motors cannot be carried out as efficiently and inexpensively as for dc motors. Various methods of Speed Control of…
Brushless DC Motor: The term Brushless DC Motor is applied to many configurations of ac synchronous motors in which semiconductor control is used to control stator currents such that maximum…
Armature Reaction in Synchronous Motor: The Simple circuit model of the synchronous machine was obtained in Sec. 8.3 by making the assumption that the magnetic circuit of the machine is…
Field Control Method of DC Shunt Motor: The Field Control Method of DC Shunt Motor are in general much more adaptable speed drives than ac motors which are associated with…
Energy Density Formula in Magnetic Circuit: The Energy Density Formula of transformers, ac machines and several other electromagnetic devices are excited from ac rather than dc sources. With ac operation,…