Electrical Machines Introduces, Global e-Learning System in Education & Training in the form of Learning Resources with Computer Aided Instructions ENGINEERS PVT.LTD. Learning/Training Resources with Computer Aided Instructions in subject of Theory Module Software Module Video Module Termwork Module System Requirement:- IBM-PC Compatible with Window-OS, 128 MB RAM/Multimedia Kit Theory module Features : Theory, Figures, Photographs, Animations with controller, Highlighter tool, Note creation facility, Systematic page navigation, Printing facility, Access to Videos at appropriate locations. Electromechanical Energy Conversion Introduction, Salient Aspects of Conversions, Energy - Balance , Magnetic-field System: Energy and Co-energyLinear System, A Simple Electromechanical System,Rotary Motion Description of Simple System, Energy stored in the coils , Different Categories ,Vital Role of Air-gap, Dynamic Equations and System-model of a Simple System, List of Topics Generator Principle, Simple Loop Generator, Practical Generator, Types of Generator Brush Contact Drop, Generated E.M.F. or E.M.F. Equation of a Generator, Iron Loss in Armature, Total Loss in a D.C. Generator, Stray Losses, Power Stages, Condition for Maximum Efficiency D. C. Generators Armature Reaction and Commutation Armature Reaction, Demagnetising and Cross-magnetising Conductors , Demagnetising AT per Pole, Cross-magnetising AT per pole, Compensating Windings, Number of Compensating Windings, Commutation, Value of Reactance Voltage, Methods of Improving Commutation, Resistance Commutation, E.M.F. Commutation, Interpoles of Compoles, Equalizing Connection, Parallel Operation of Shunt Generators, Paralleling DC Generator, Load Sharing, Procedure for Paralleling D.C. Generators, Compound Generators in Parallel,Series Generators in Parallel. Generator Characteristics D. C. Motor Motor Principle, Comparison of Generator and Motor Action, Significance of the Back e.m.f., Voltage Equation of a Motor, Condition for Maximum Power, Torque, Armature Torque of a Motor, Shaft Torque (Tsh), Speed of a D.C. Motor, Motor Characteristics Characteristics of Series Motors , Characteristics of Shunt Motors, Compound Motors, Performance Curves,Comparison of Shunt and Series Motors, Losses and Efficiency Power Stages. Head Office Unit No. 5/A , The Pentagon, Near Hotel Panchami, Satara Road, Pune 411009- India Ph : +91 20 24217676 / 24218747 Telefax : +91 20 24218747 ENGINEERS PVT.LTD. AN ISO 9001:2000 CERTIFIED COMPANY http://www.softtech-engr.com Factors Controlling Motor Speed, Speed Control of Shunt motors, Speed Control of Series Motors, Merits and Demerit of Rheostatic Control Method, Series-parallel Control, Electric Braking, Electric Braking of Shunt Motors, Electric Braking of Series Motor, Electronic Speed Control Method for DC Motors, Uncontrolled Rectifiers, Controlled Rectifiers, Thyristor Choppers Thyristor Inverters, Thyristor Speed Control of Separately-excited D.C. Motor. Testing of D. C. Machines Brake Test ,Swinburne's Test (or No-load Test or Losses Method), Advantages of Swinburne's Test, Regenerative or Hopkinson's Test (Back-to-Back Test), Alternative Connections for Hopkinson's Test, Merits of Hopkinson's Test, Retardation or Running Down Test, Field's Test for Series Motor. Speed Control of D. C. Motors Working Principle of a Transformer, Transformer Construction, Elementary Theory of an Ideal Transformer, E.M.F. Equation of a Transformer, Voltage Transformation Ratio (K), Transformer with Losses but no Magnetic Leakage , Transformer on Load, Equivalent Circuit, Transformer Tests. Transformer Three-Phase Transformer, Three-phase Transformer Connections, Star/Star or Y/Y Connection, Delta-Delta or D-D Connection,Wye/Delta or Y/D Connection, Delta/Wye or D /Y Connection, Open-Delta or V - V connection, Power Supplied by V - V Bank . Transformer: Three Phase Characteristics of D.C. Generators, Separately-excited Generator, No-load Curve for Self-excited Generator, Critical Resistance for Shunt Generator, How to Find Critical Resistance Rc?,Critical Speed NC, Conditions for Build-up of a Shunt Generator, Other Factors Affecting Voltage Building of a DC Generator, External Characteristic, Voltage Regulation, Internal or Total Characteristic, Series Generator, Compound-wound Generator, How to Calculate Required Series Turns?, Uses of D.C. Generators. Classification of A.C. Motors,Induction Motor: General principle ,Squirrel-cage Rotor, Phase-wound Rotor, Production of Rotating Field,Three-phase Supply ,Why Does the Rotor Rotate ?, Slip,Frequency of Rotor Current, Starting Torque,Torque/Speed Curve . Induction Motor Basic Principle, Stationary Armature, Rotor,Damper Windings,Speed and Frequency Armature Windings, Single-layer Winding, Concentric or Chain Windings, Two-Layer Winding . Alternators Email - [email protected],[email protected] Email - [email protected],[email protected] Delhi:-011-51015900, 9811011517 Mumbai:-093238-64571 Kolkata:-09339395900 Bangalore:-+91-80–25091247, 25091254/57 Hyderabad:- +91-40-55837709, 093469-30907 Ahmedabad:-+91-79-26635268, 98250-14387 Baroda:-0265-2483570,9426324610, Goa:-0832-227973,9326107690 Jaipur:-0141-2671429,9314509193, Lucknow:-9415080327, Guwahati:-0361-263571,9864094394 Raipur:- 9826140080 Nagpur:-9422165232 Surat:- 9824134900 Branch Offices
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Electrical Machines Introduces, Global e-Learning System in Education & Training in the form of Learning Resources with Computer Aided Instructions
ENGINEERS PVT.LTD.
Learning/Training Resources with Computer Aided Instructions in subject of
Theory Module
Software Module
Video Module
Termwork Module
System Requirement:- IBM-PC Compatible with Window-OS, 128 MB RAM/Multimedia Kit
Theory moduleFeatures : Theory, Figures, Photographs, Animations with controller, Highlighter tool, Note creationfacility, Systematic page navigation, Printing facility, Access to Videos at appropriate locations.
Electromechanical Energy Conversion
Introduction, Salient Aspects of Conversions, Energy - Balance , Magnetic-field System:Energy and Co-energyLinear System, A Simple Electromechanical System,Rotary Motion Description of Simple System, Energy stored in the coils , Different Categories ,Vital Role of Air-gap, Dynamic Equations and System-model of a Simple System,
List of Topics
Generator Principle, Simple Loop Generator, Practical Generator, Types of Generator Brush Contact Drop, Generated E.M.F. or E.M.F. Equation of a Generator, Iron Loss in Armature, Total Loss in a D.C. Generator, Stray Losses, Power Stages, Condition for Maximum Efficiency
D. C. Generators
Armature Reaction and Commutation
Armature Reaction, Demagnetising and Cross-magnetising Conductors , DemagnetisingAT per Pole, Cross-magnetising AT per pole, Compensating Windings, Number ofCompensating Windings, Commutation, Value of Reactance Voltage, Methods of Improving Commutation, Resistance Commutation, E.M.F. Commutation, Interpoles of Compoles, Equalizing Connection, Parallel Operation of Shunt Generators, Paralleling DC Generator, Load Sharing, Procedure for Paralleling D.C. Generators, Compound Generators in Parallel,Series Generators in Parallel.
Generator Characteristics
D. C. MotorMotor Principle, Comparison of Generator and Motor Action, Significance of the Back e.m.f., Voltage Equation of a Motor, Condition for Maximum Power, Torque, ArmatureTorque of a Motor, Shaft Torque (Tsh), Speed of a D.C. Motor, Motor Characteristics Characteristics of Series Motors , Characteristics of Shunt Motors, Compound Motors, Performance Curves,Comparison of Shunt and Series Motors, Losses and Efficiency Power Stages.
Head OfficeUnit No. 5/A , The Pentagon, Near Hotel Panchami, Satara Road, Pune 411009- India
Ph : +91 20 24217676 / 24218747Telefax : +91 20 24218747ENGINEERS PVT.LTD.
AN ISO 9001:2000 CERTIFIED COMPANYhttp://www.softtech-engr.com
Factors Controlling Motor Speed, Speed Control of Shunt motors, Speed Control of SeriesMotors, Merits and Demerit of Rheostatic Control Method, Series-parallel Control, ElectricBraking, Electric Braking of Shunt Motors, Electric Braking of Series Motor, ElectronicSpeed Control Method for DC Motors, Uncontrolled Rectifiers, Controlled Rectifiers, Thyristor Choppers Thyristor Inverters, Thyristor Speed Control of Separately-excited D.C. Motor.
Testing of D. C. Machines Brake Test ,Swinburne's Test (or No-load Test or Losses Method), Advantages of Swinburne's Test, Regenerative or Hopkinson's Test (Back-to-Back Test), Alternative Connections for Hopkinson's Test, Merits of Hopkinson's Test, Retardation or RunningDown Test, Field's Test for Series Motor.
Speed Control of D. C. Motors
Working Principle of a Transformer, Transformer Construction, Elementary Theory of an Ideal Transformer, E.M.F. Equation of a Transformer, Voltage TransformationRatio (K), Transformer with Losses but no Magnetic Leakage , Transformer on Load, Equivalent Circuit, Transformer Tests.
Transformer
Three-Phase Transformer, Three-phase Transformer Connections, Star/Star or Y/Y Connection, Delta-Delta or D-D Connection,Wye/Delta or Y/D Connection, Delta/Wye or D /Y Connection, Open-Delta or V - V connection, Power Supplied by V - V Bank .
Transformer: Three Phase
Characteristics of D.C. Generators, Separately-excited Generator, No-load Curve for Self-excited Generator, Critical Resistance for Shunt Generator, How to Find Critical Resistance Rc?,Critical Speed NC, Conditions for Build-up of a Shunt Generator, OtherFactors Affecting Voltage Building of a DC Generator, External Characteristic, Voltage Regulation, Internal or Total Characteristic, Series Generator, Compound-wound Generator, How to Calculate Required Series Turns?, Uses of D.C. Generators.
Classification of A.C. Motors,Induction Motor: General principle ,Squirrel-cage Rotor,Phase-wound Rotor, Production of Rotating Field,Three-phase Supply ,Why Does theRotor Rotate ?, Slip,Frequency of Rotor Current, Starting Torque,Torque/Speed Curve .
Induction Motor
Basic Principle, Stationary Armature, Rotor,Damper Windings,Speed and FrequencyArmature Windings, Single-layer Winding, Concentric or Chain Windings, Two-Layer Winding .
Alternators
Email - [email protected],[email protected] - [email protected],[email protected]
Delhi:-011-51015900, 9811011517 Mumbai:-093238-64571 Kolkata:-09339395900 Bangalore:-+91-80–25091247, 25091254/57 Hyderabad:- +91-40-55837709,093469-30907 Ahmedabad:-+91-79-26635268, 98250-14387 Baroda:-0265-2483570,9426324610, Goa:-0832-227973,9326107690 Jaipur:-0141-2671429,9314509193,
Lucknow:-9415080327, Guwahati:-0361-263571,9864094394 Raipur:- 9826140080 Nagpur:-9422165232 Surat:- 9824134900
Branch Offices
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