Home / Electrical Machines / Electrical Machines Objective Questions Electrical Machines • Electrical Q & A Electrical Machines Objective Questions S Bharadwaj ReddyLeave a comment Electrical Machines Questions & Answers 1. Magnetic Circuits Principle of Energy Conversion Excited Magnetic Systems 2. Basic Concepts in Rotating Machines Reluctance Motor Doubly Excited Magnetic Systems Elementary Synchronous Machines Singly Excited Electric Field Systems Torque Production and Dynamic Equations Terms Pertaining to Rotating Machines Rotating Magnetic Field – 1 Rotating Magnetic Field – 2 3. Constructional Features of Rotating Electrical Machines Features of Rotating Electrical Machines-1 Features of Rotating Electrical Machines-2 Features of Rotating Electrical Machines-3 4. Principles of Electro mechanical Energy Conversions Generated Emfs 5. Rating and Loss Dissipation Losses and Efficiency – 1 Losses and Efficiency – 2 Machine Ratings Cooling(Loss Dissipation) 6. Electrical Machine Applications/ Armature Reaction and Commutation Machine Applications Action of Commutator 7. Electromechanical Energy Conversions EMF Generated in the Armature Torque in DC Machines 8. DC Machines Circuit Model of DC Machines Methods of Excitation MMF and Flux Density Waveforms in DC Machines Effect of Brush Shift and Compensation Windings Efficiency and Testing of DC Machines DC Machine Applications 9. DC Generators Operating Characteristics of DC Generators Rotating Amplifiers 10. DC Motors Operating Characteristics of DC Motors DC Motor Starting Speed Control of DC Motors Permanent Magnet DC (PMDC) Motors 11. Synchronous Machines EMF Polygon – 1 EMF Polygon – 2 Production of Torque in Non-Salient Pole Machines MMF Produced by Distributed Windings Excitation Systems for Synchronous Machines Flux and MMF Phasors in Synchronous Machines Physical Concepts of Synchronous Machine Operation Power Factor Control of Synchronous Machines Two Reaction Theory of Salient Pole Machines Power Angle Characteristics of Synchronous Machines Measurement of Xd and Xq Synchronous Machine Applications 12. Synchronous Generators Phasor Diagram of a Cylindrical Rotor Alternator Voltage Regulation of an Alternator Operating Characteristics of Alternators and their Ratings 13. Synchronous Motors Synchronous Motor Phasor Diagram Power Factor Correction by Synchronous Motors Starting of Synchronous Motors 14. Efficiency and Regulation Power Flow Through an Inductive Impedance – I Power Flow Through an Inductive Impedance – II Efficiency of Synchronous Machines Losses and Efficiency 15. Synchronous Machine Stability Synchronizing Power and Synchronizing Torque Synchronous Machine Stability Hunting and Damper Windings 16. Induction Machines Induction Motor as a Transformer Principle of Operation Flux and MMF Phasors and Waves in Induction Motors Rotor Frequency Rotor EMF, Current and Power Induction Motor Phasor Diagram Equivalent Circuit Analysis of the Equivalent Circuit Operating Characteristics of Induction Motors Determination of Equivalent Circuit Parameters Power Factor Control of Three Phase Induction Motors Induction Generator Applications of Polyphase Induction Motors Circle Diagrams of Induction Machines 17. Starting of Induction Motors Starting of Polyphase Induction Motors-I Starting of Polyphase Induction Motors-II 18. Armature Windings Armature Windings 19. Transformers Transformer Construction Ideal Two Winding Transformer Transformer Phasor Diagram Equivalent Circuit of Transformer Open Circuit and Short Circuit Test Voltage Regulation of Transformer Transformer Losses and Efficiency Parallel Operation of Single Phase Transformers Transformer as a Magnetically Coupled Circuit Three Phase Transformers Autotransformers Previous Post:Pressure to Current (P/I) Converter PrincipleNext Post:Electronic Devices & Circuits Quiz – Set 1 Related Articles Electrical Q & A Top Electrical Engineering Interview Questions for Freshers July 11, 2016 Electrical Q & A Latest Transformers Questions and Answers September 3, 2017 Electrical Q & A Latest Electrical Motors Questions and Answers August 22, 2017 Electrical Machines Induction Motors Faults and Protection April 25, 2016 Electrical Machines Synchronous Generator Salient Pole vs Non Salient Pole April 28, 2016 Electrical Q & A • Multiple Choice Questions Stepper Motors Objective Questions & Answers January 10, 2018 Electrical Machines Types of AC Motors and DC Motors March 7, 2016 Electrical Machines Difference Between Squirrel Cage and Slip Ring Motors March 7, 2016 Electrical Q & A Electrical Drives Questions & Answers April 18, 2016 Electrical Q & A Electrical Machines Objective Questions & Answers June 28, 2018 Electrical Q & A Power Electronics Interview Questions Part-1 April 18, 2016 Electrical Machines Transformer Tap Changing Working Principle June 17, 2016 Also Read : Types of Transformers March 9, 2016 Protection Relays Interview Questions & Answers January 24, 2016 Top 50 Electrical Engineering Questions & Answers December 17, 2015 Leave a Reply Cancel reply Your email address will not be published. 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