Electrical Machines and Applications
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Electrical Machines and Applications Syllabus — Unit-wise Content
The official GTU curriculum for Electrical Machines and Applications (subject code 3132407) as prescribed for PE · Semester 3 divides the course into 4 units, covering 79 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3132407)Unit 1 Transformers
- Single Phase Transformer Working principle
- EMF equation
- Transformer on no load and on load
- vector diagram
- exact and approximate equivalent circuit
- O.C & S.C. test on transformer
- regulation of transformer
- losses &efficiency
- condition for maximum efficiency
- All day efficiency
- Efficiency curve
- Sumpner’s test
- Auto transformer
- Saving of conductor material
- Parallel operation
- Parallel with equal and unequal voltage ratio. 3 Phase transformers: Construction
- Scott connection
- Instrument transformers
- Current transformers and potential transformers
- Application of Transformer 12 Subject Code: 3132407 W
Unit 3 Phase induction motor
- rotating magnetic field
- principle of operation
- frequency of rotor current
- rotor EMF, rotor current
- expression for torque
- conditions for maximum torque
- torque slip characteristics
- starting torque in squirrel cage and slip ring motors
- effect of change in supply voltage on torque
- slip and speed
- relation between full load torque and maximum torque
- Power stages in induction motor
- vector diagram and equivalent circuit
- circle diagram
- construction and calculation
- speed control of 3 phase motor
- starting methods for 3 phase induction motors
- need for starter and types of starter
- applications Single phase motor: Double revolving field theory
- starting methods
- no load and block rotor test
- equivalent circuit
- types of single phase motor
- applications. 12 3 DC Machines: DC Generator: Electromechanical Energy Conversion Principal
- Constructional features
- EMF equation of dc generator
- methods of excitation
- losses and condition for maximum efficiency
- armature reaction
- interpoles and compensating winding
- methods of improving commutation
- Types and characteristics of separately excited and self excited dc generator
- DC Motor: Working principle
- force and torque in magnetic field System
- voltage equation
- condition for maximum power
Unit 4 Synchronous Machine
- Alternator Basic principle
- pitch factor
- distribution factor
- EMF equation
- alternator on load
- voltage regulation
- synchronous impedance method
- MMF method
- ZPF method
- parallel operation
- synchronization of alternator
- Synchronous motor: Basic principle
- methods of starting
- Characteristics and application
Unit 5 Introduction to Special Machine
- General construction
- characteristics and applications
- AC & DC Servo motors
- Amplidyne and Metadyne
- Printed Circuit Motors
- Brushless DC motors
- Reluctance Motor
- Stepper Motor
- Linear Induction Motor
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