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Brushless DC Motor

Brushless DC Motor: The term Brushless DC Motor is applied to many configurations of ac synchronous motors in which semiconductor control is used to control stator currents such that maximum…

Short Circuit Current in Synchronous Generator

Short Circuit Current in Synchronous Generator: The Short Circuit Current in Synchronous Generator being electrical in nature is much faster than the electromechanical dynamics discussed already. It will, therefore, be…

Slip Test on Synchronous Machine

Slip Test on Synchronous Machine: Direct and quadrature axis reactances of a salient-pole synchronous machine can be estimated by means of a test known as the Slip Test on Synchronous…

Construction of Cylindrical Rotor Synchronous Machine

Construction of Cylindrical Rotor Synchronous Machine: As stated earlier the Cylindrical Rotor Synchronous Machine offers constant permeance to mmf waves irrespective of the mechanical position of the rotor and is,…

Separately Excited DC Motor for Dynamic Analysis

Separately Excited DC Motor for Dynamic Analysis: Separately Excited DC Motor for Dynamic Analysis - The DC machines are quite versatile and are capable of giving a variety of V-A…

Field Control Method of DC Shunt Motor

Field Control Method of DC Shunt Motor: The Field Control Method of DC Shunt Motor are in general much more adaptable speed drives than ac motors which are associated with…

External Characteristics of Compound Generator

External Characteristics of Compound Generator: External Characteristics of Compound Generator - The causes of voltage drop in the terminal voltage from no-load to full-load in a shunt generator can be…

Self Excited DC Generator

Self Excited DC Generator: Rather than arranging a separate dc source for excitation purposes, practical generators are always excited from their own armature terminals, this method of excitation being known…