MV3401 Syllabus - Marine Electrical Machines - 2021 Regulation Anna University

MV3401 Syllabus - Marine Electrical Machines - 2021 Regulation Anna University

MV3401	MARINE ELECTRICAL MACHINES	LTPC

3104

OBJECTIVES:

• To expose the students to the Electrical equipment’s fitted on boards ships, the concepts of electrical measurements and electrical distribution systems.
• To make the students to understand the concepts of Electricity production.
• To impart knowledge on measurements, cable faults and AC Machines used in Marine Engineering.
• To understand Principles of operation and construction details of synchronous motors, induction machines.
• To impart knowledge on Speed control and trouble shooting in induction machines.

UNIT I	PRINCIPLES OF D.C. MACHINES AND GENERATORS	9+3

Principles of DC machines – construction – winding and E.M.F equations – armature reaction – commutation – brush shift – compensating winding – D.C. generator – their characteristics- methods of excitation – parallel operation – performance equations. D.C. Motor –their characteristics – starting and reversing – speed – torque equations – starters– speed control including electronic method of control – testing of D.C. machines for finding out the losses and efficiency – braking of D.C. motor, Ward-Leonard control.

UNIT II	TRANSFORMERS	9+3

Transformers – types and applications – operating principle – E.M.F. Equations – phase diagrams under no load and load conditions – leakage resistance – equivalent circuits –voltage regulation – losses and efficiency – open circuit and short circuit tests – parallel operation – three phase transformers – core and shell type – current and potential transformers – auto- transformers (single phase and three phase) - specification of coolants.

UNIT III	ALTERNATORS	9+3

Alternators – general arrangement – construction of salient pole and cylindrical rotor types – types of stator windings – E.M.F equation – distribution and pitch factor –waveform of E.M.F. generated – rotating magnetic field – armature reaction – voltage regulation – load characteristics – open circuit and short circuit tests – E.M.F and M.M.F. methods – parallel operation of alternators – KW and KVA sharing – Brushless alternator – static excitation system.

UNIT IV	SYNCHRONOUS MOTORS	9+3

rinciple of operation of 3-phase synchronous motor. – operation of infinite bus bars torque/angle characteristics – hunting – methods of starting – merits and limits of synchronous motor over others

UNIT V	INDUCTION MACHINES	9+3

Three phase induction motor –Principle of operation and theory of action – slip speed–rotor to stator relationship – rotor frequency – rotor e.m.f. and current – equivalent circuit relationship between rotor IR loss and rotor slip – torque/Slip characteristics – starting torque and maximum running TorqueEffect of change in supply voltage on Torque-Induction generator.

TOTAL: 60 PERIODS

OUTCOMES: Upon successful completion of the course, students should be able to:

CO1: Operate D.C. Machines.
CO2: Operate and Maintain Transformers.
CO3: Design features of Alternators – their construction and operation.
CO4: Synchronous the motor.
CO5: Operate and maintain induction machines

TEXT BOOKS:

1. Edmund G R, Kraallavers, “Advanced Electo-technology For Marine Engineers”, 2nd Ed. Reeds Vol 07, Adlard Coles Nautical, London, 2010.
2. W. Laws, “Electricity Applied To Marine Engineering”, 4th edition, The Institute Of Marine Engineers, London, 1998.
3. IHerman, “Electrical Transformers and Rotating Machines”, 3rd Ed. Cengage, First Indian Reprint 2012 ( Yesdee Publishings Pvt. Ltd.).
4. Edmund GR Kraal, Stanley Buyers, Christopher Lavers, “Basic electro-technology for marine engineers”, 4th Ed. Reeds Vol 06,2013.
5. Hughes Edward, “Electrical technology”, 2nd edition, “ELBS with DP Publications”, USA, 1996.
6. I.J Nagrath and D.P Kothari, “Basic Electrical Engineering”, 2nd Edition, McGraw Hill Publishing Co., Ltd., New Delhi, 2002.

REFERENCES:

1. Uppal S.L., "Electrical Power", 13th Edition, Khanna publishers, Mumbai, 2002.
2. Berde M.S., "Electric Motor Drives", 1st Edition, Khanna Publishers, Mumbai, 1995.
3. W. Laws, “Electricity Applied To Marine Engineering”, 4th edition, The Institute Of Marine Engineers, London, 1998.
4. Gorti Ramamurthi, “Handbook of Electrical Power Distribution”, 2nd Ed.Universities Press, 2009