Rotating Electrical Machines: We Know that electromechanical energy conversion takes place whenever a change in flux is associated with mechanical motion. Speed voltage is generated in a coil when there is relative movement between the…
Classification of Communication: There are two basic classification of communication systems, baseband systems and passband systems. In baseband systems, the signal is transmitted without modifying the frequency content. A simple intercom is an example of…
Methods of Excitation of DC Generator: The performance characteristics of a dc machine are greatly influenced by the way in which the field winding is excited with direct current. There are two Methods of Excitation…
Power Flow through Transmission Line: So far the transmission line performance equation was presented in the form of voltage and current relationships between sending-and receiving-ends. Since loads are more often expressed in terms of real…
Internal Architecture of 8275 CRT Controller: The 8275 programmable CRT controller is a single-chip device that generates all the signals which are used for interfacing a microprocessor system. The main function of the 8275 CRT…
Site Selection for Hydroelectric Power Plant: The Site Selection for Hydroelectric Power Plant includes several structures like dam, conduits intakes, surge tank, power house and many others. It requires several investigation and study to determine…
Distance Protection: Both time-graded and pilot-wire system are not suitable for the protection of very long high voltage transmission lines. The former gives an unduly long time delay in fault clearance at the generating station…
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 model of Fig. 9.23 is…
RL Driving Point Impedance: The RL networks consist of only R and L components. There is no capacitor present in such networks. The RL Driving Point Impedance of such networks is denoted as ZRL(s). The…
What is a Cooling Tower? - Types of Cooling Tower Cooling Tower is used to cool the water, and its height is about 140 Meters. The hot water is to pumped the tower top and…
