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…
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…
Equivalent Circuit of Synchronous Motor: By assuming linearity of the magnetic circuit, it is possible to obtain simple Equivalent Circuit of Synchronous Motor. The validity of this assumption stems from…
What is Synchronous Motor | Construction | Advantages: A synchronous Motor is one of the important types of electric machines; in fact all generating machines at power stations are of…
DC Machine Applications: Whenever the application of any machine is considered, its operating characteristics along with its economic and technical viability as compared to its competitors are the essential criteria.…
Hopkinsons Test on DC Machine: This is a regenerative test in which two identical dc shunt machines are coupled mechanically and tested simultaneously. One of the machines is made to…
Testing of DC Machine or Swinburne Test: Testing of DC Machine or Swinburne Test - Machine efficiency, in general, has been discussed already. The approach here will be to apply…
Characteristics of Separately Excited DC Generator: With the advent of silicon-controlled rectifiers, the importance of the dc machine as a generator has considerably reduced as SCRs can be employed to…