Tuned Power Lines in Transmission: Equation (5.23) characterizes the performance of a Tuned Power Lines in long Transmission line. For an overhead line shunt conductance G is always negligible and…
Types of Forced Commutation: It was observed from the discussion on choppers and inverters that in thyristor systems fed from dc supply, the forward current does not pass through zero…
Induction Motor Speed Control Methods: The only way to control the speed of a synchronous motor is to control the input frequency and voltage such as to keep V/f constant.…
Starting Methods of Induction Motor: Starting Methods of Induction Motor - At the time of starting the motor slip being unity, the load resistance with reference to the approximate circuit…
Constant Current Limiting Circuit: A block of series regulation using simple Constant Current Limiting Circuit is shown in the Fig. 2.119. It is also called short circuit protection circuit as…
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.…
Shunted Armature Speed Control: Shunted Armature Speed Control - It is a variation of rheostatic control. As is obvious from Fig. 7.59, the principle used in achieving control is that…
Rheostatic Control Method: Rheostatic Control Method - Series armature-resistance control : Here the applied armature voltage is varied by placing an adjustable resistance Re in series with the armature as…