Derivation of Transmission Loss Formula: An accurate method of obtaining a general derivation of transmission loss formula has been given by Kron. This, however, is quite complicated. The aim of…
What is Sinusoidal Pulse Width Modulation?: In Sinusoidal Pulse Width Modulation the pulse-width instead of being uniform as in the waveform of Fig. 11.55 is a sinusoidal function of its…
Static Scherbius Drive Circuit Diagram: A basic scheme of a Static Scherbius Drive Circuit Diagram converter cascade, that is employed for recovery of slip power in electrical form itself, is…
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.…
Three Phase Semi Converter feeding Separately Excited DC Motor: Large-kW motors are fed from 3-phase supply through three Phase Converters. In a three Phase Semi Converter, the ripple frequency of…
DC Motor Control through Converters: DC motor control is conveniently and efficiently achieved by phase-controlled converters wherein the ac input voltage is converted to a controlled dc output. The commutation…
Block Diagram of Electrical Drives | Advantages | Applications: Block Diagram of Electrical Drives - Invention of thyristor led to emergence of semiconductor drives in early sixties. The improvements in…
Gate Turn Off Thyristor (GTO) - Symbol, Operations and Applications: Conventional thyristors are used as ideal switches in power electronic applications. They have the capability of blocking several thousand volts…