Dynamics of Synchronous Machine: The Kinetic Energy of the Rotor at Dynamics of a Synchronous Machine is where J = rotor moment of inertia in Kg-m2 ωsm = synchronous speed in rad (mech)/s But where P…
Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive - In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with…
Block Diagram of a General Purpose CRO and its workings: The modern time-domain General Purpose CRO, regardless of its sophistication, consists of the following main units. Cathode ray tube (CRT) — display device. Power supplies…
Derivation of Single Phase Quantity from Three Phase System: It will be seen later that auxiliary channels or pilot wires are used to transmit information from one end of the line to the other end.…
Filter Fundamentals in Network Analysis: Filter Fundamentals in Network Analysis - The complete study of behavior of any filter section needs calculations of its characteristic impedance (Z0), propagation constant (γ), attenuation constant (α) and phase…
Various Pilot Devices in Motor Control: Motor control devices may be classified as primary control devices and pilot control devices. Pilot devices control the primary control devices which in turn controls (connects or disconnects) the…
Attenuators in Network Analysis: In various transmission equipments, it is many times required to supress or reduce the levels of the currents and voltages at certain points. To fulfill the need of attenuation, a four…
Universal Relay Torque Equation Derivation: Universal Relay Torque Equation - Most of the protection relays consist of some arrangement of electromagnets. These electromagnets have either current windings or voltage windings and in some cases both…
Application of State Estimation in Power System: Application of State Estimation in Power System - In real-time environment the state estimator consists of different modules such as network topology processor, observability analysis, state estimation and…
Digital to Analog and Analog to Digital Converters Interview Questions and Answers: 1. Why conversion of an analog signal into an equivalent digital signal is essential? Ans. Because most sensors have analog output while much data…