EE3205 Electrical Machines and Drives - Hand Written Notes for all five units

Hand Written Notes for all five units.
The notes cover the following topics in detail....
UNIT I    CIRCUITS AND TRANSFORMERS
D.C. Voltage, current, power – Ohms law – series, parallel circuits – Kirchoff’s laws – mesh
analysis – A.C. voltage – sinusoidal waves, hasor representation – power factor – complex
power – basic idea of transformers – simple problems.

UNIT II ELECTRICAL MOTORS
Constructional details, principle of operation and performance characteristics of D.C. motors,
single phase induction motor, three phase induction motor, synchronous motors, universal
motors, stepper motors and reluctance motor.


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UNIT III SPEED CONTROL AND STRATING
Speed control of D.C. motors – three phase induction motors – starting methods of D.C. motor
and three phase induction motor – electrical braking – simple problems.

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 UNIT IV ELECTRICAL DRIVES
Type of Electrical Drives – Selection & factors influencing the selection – heating and cooling
curves – loading condition and classes of duty – determination of power rating – simple problems.

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UNIT V SOLID STATE DRIVES(QUALITATIVE TREATMENT ONLY)
Advantages of solid state drives – D.C. motor control using rectifiers and choppers – control of
induction motor by V, V/f and slip power recovery scheme using inverters and A.C. power
regulators.

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Electrical machine and Drives Previous Anna university Question papers

Anna university old/Previous question papers for Mechatronics Engineering  department:  EMD- Electrical machine and Drives

BEEE May/June 2013 - Click here 

BEEE N/D 2013 - Click Here

EMD MJ 2013 - Click Here

EMD ND 2012 - click here

Electrical Machines and Drives unit-3 Hand written notes

The following notes cover the following topics 

UNIT III    SPEED CONTROL AND STRATING                        

Speed control of D.C. motors – three phase induction motors – starting methods of D.C. motor

and three phase induction motor – electrical braking – simple problems.

EMD UNIT 3 Hand written Notes - Click Here

Principle of Electrical Machines and Power System and its solution Manual - P.C.Sen - e-book Free Download

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EC 3205 –Electrical Machines and Drives - 2 Marks Questions & Answers

EC 3205 – Electrical Machines and Drives

TOPICS

                      UNIT I        CIRCUITS AND TRANSFORMERS

                      UNIT II      ELECTRICAL MOTORS

                      UNIT III     SPEED CONTROL AND STRATING

                      UNIT IV     ELECTRICAL DRIVES

                     UNIT V       SOLID STATE DRIVES(QUALITATIVE TREATMENT ONLY)

UNIT I-Electric Circuits and Transformer

1.      State Ohm’s law for magnetic circuit.

It states that the magneto motive force across the magnetic element is equal to the product of the magnetic flux through the magnetic element and the reluctance of the magnetic material. It is given by MMF = Flux X Reluctance

2.      Define leakage flux

The flux setup in the air paths around the magnetic material is known as leakage flux.

3.      Define magnetic reluctance

The opposition offered by the magnetic circuit for the magnetic flux path is known as magnetic reluctance. It is analogous to electric resistance.

4.      What is fringing?

In the air gap the magnetic flux fringes out into neighbouring air paths due to the reluctance of air gap which causes a non-uniform flux density in the air gap of a machine. This effect is called fringing effect.

5.      Mention some magnetic materials

Alnicos, chromium steels, copper–nickel alloy, nickel, cobalt, tungsten and aluminium.


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Electrical Machines & Drives Lab Manual

EE3208 ELECTRICAL MACHINES AND DRIVES  LABORATORY

OBJECTIVE
To expose the students the  operation of electrical drives and gives them hands on experience.

LIST OF EXPERIMENT

1. Load test on D.C. shunt motor.

2. Speed control of D.C. shunt motor.

3. Swinburne’s test.

4. Load test on three phase induction motor.

5. No load and blocked rotor tests  on three  – phase induction motor.

6. Load test on single phase induction motor.

7. No load and blocked rotor tests on single phase induction motor.

8. Performance characteristics of single phase transformer.

9. Study on the performance characteristics of synchronous motors.

10. Study on the performance characteristics of stepper motor.

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