DC & Synchronous Machines (KIIT)
From ₹365
Instructor: Thotakura NSC Sekhar
Instructor Language: English
Course Validity: 30days/90days/365days
Compatibility: Android Mobile, Laptop/PC (Windows-8 or above)
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110+ Videos Download & Watch (68Hours of lectures, 230MB per hour) With PDF notes.
DC Generator
Principle of operation, Types of DC Machines. Armature Winding and emf equation, Armature Reaction, Brushshift and its Effects, Methods to improve commutation, Interpoles, Commutation. Power Flow Diagram, Losses and Efficiency. Characteristics of different DC Machines. Applications of separately and self excited DC Generator, Different Parts of DC Machine, Connection Diagram, Developed diagram, Equivalent ring diagram, compensating winding, dummy coils, equalizer rings.
DC Motor
Principle of operation, Back emf, Characteristics of different motors, Losses and Efficiency, Speed control of DC Motor, Necessity of starters, Testing : Swinburne’s Test and Hopkinson’s Test. Applications of different DC motors, 3 point and 4 point starter, Laboratory method for Brake Test, Rating of DC Machine
Synchronous Generator
Principle of operation, Different armature windings, Pitch factor, distribution factor, winding Factor, EMF equation, Armature Reaction, Phasor Diagram of a cylindrical alternator, Voltage Regulation: EMF Method, MMF Method and Zero power factor method, Short Circuit Ratio, Power angle characteristics of cylindrical alternator, Blondel’s two reaction theory, Direct and quadrature axis reactance, Phasor Diagram of salient pole Machine, Power angle Characteristics of salient pole alternator, Excitation systems for synchronous machines, Construction, Laboratory Methods for Determination of Xd and Xq (Slip Test), Ratings and
Applications, Parallel operation of Alternators and load sharing, Synchronizing power
Three Phase Synchronous Motor
Principle of operation, Method of Starting, Equivalent Circuit and Phasor Diagram of cylindrical rotor, Power flow diagram, Construction of V curve and inverted V curves, Synchronous condenser and power factor correction, Power angle equation for both salient and cylindrical rotor synchronous motor, Effect of load changes on a synchronous motor, Hunting, rating and applications.
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FAQs
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We are allowing this feature to reduce the stress on students while changing between pdf and videos(misuse of this facility and sharing the license with your friend will fall under the violation of license policy).
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