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MARINE ELECTRO TECHNOLOGY
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3351803
Code: 3351803
Credits: 5
Semester 5
ETC
MARINE ELECTRO TECHNOLOGY
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MARINE ELECTRO TECHNOLOGY Syllabus — Unit-wise Content
The official GTU curriculum for MARINE ELECTRO TECHNOLOGY (subject code 3351803) as prescribed for ETC · Semester 5 divides the course into 5 units, covering 23 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 (3351803)Unit 1 3Ø Induction motor 1.a Principle of 3Ø system. 1.b Explain how a rotational field is produced in a 3 phase induction motor.
- 1.1. Principle of operation and theory of action, slip speed, rotor to stator relationship, rotor frequency, rotor e.m.f. and current.
- 1.2. Construction, types - Squirrel cage - Single and double cage, Wound rotor
- 1.3. Equivalent circuit relationship between rotor IR loss and the rotor slip, torque/slip characteristics, starting torque and maximum running torque, reversing, speed control of induction motor.
- 1.4. Starting of induction motor, method of starting D.O.L, Star/Delta, Auto, Testing of motor, Single and three phase induction motor principle and operational characteristics, starting control constructional details.
- 1.5. Maintenance of different types of induction motors
Unit 2 Alternators- General 2.a Explain the working principle of an alternator. 2.b Construction of alternators 2.c Stator windings &
- 2.1. Arrangement of alternators, construction of salient pole and cylindrical- rotor types.
- 2.2. Types of stator windings, single and double layer windings, e.m.f equation of an alternator, distribution and pitch factor, waveform of generated e.m.f., alternator on load, percentage regulation, internal voltage drop, production of rotating magnetic field,
- 2.3. Resultant magnetic field distribution, mathematical , reversal of direction of rotation of rotating field.
- 2.4. Synchronization of alternator with bus bar/alternator.
- 2.5. Cooling system of alternator.
- 2.6. Maintenance of different types of alternators Marine Electro technology W.e.f. AY 2018-19 Page 3 of 5
Unit 3 Armature reaction in synchronous alternator 3.a Paralleling of alternators. 3.b Excitation in generators.
- 3.1. Armature reactance, prediction of voltage regulation, open circuit test, short circuit test, Synchronous impedance ,torque/angle characteristics, infinite bus bar, synchronizing current, torque and power, hunting of phase swinging, parallel operation of alternators,
- 3.2. A.c. generators in parallel-excitation control, throttle control, load sharing KW and KVA, principle of action of three phase synchronous motor effect of varying load and excitation, methods of starting
- 3.3. Advantages and disadvantages of synchronous motor.
- 3.4. Maintenance of synchronous motors
Unit 4 Power Generation Equipment & Automatic Voltage Regulation: 4.a Electrical & electronic symbols.
- 4.1. Overview of marine electrical systems the basic components / systems and the conditions under which they have to function
- 4.2. Electrical and Electronic Symbols and Interpretation of flow Diagram and circuits. Mandatory requirements for electrical installations
- 4.3. Electrical control system of Prime Mover. Construction of brushless high speed alternators.
- 4.4. Automatic Voltage Regulators, rapid voltage response of alternators. Paralleling of alternators.
Unit 5 Alternative Source of Power & Distribution 5.a Emergency generators& starting methods. 5.b Electrical distribution. E.S.B & M.S.B
- 5.1. Emergency Generator & Different starting method including auto -start, emergency batteries and its different types & duties, Location of emergency power.
- 5.2. Different Emergency loads, Rules & Regulation of emergency power, Maintenance of Emergency power source on board. Shore Supply - Specifications as per Voltage /frequency ,Precautions while taking shore supply.
- 5.3. Different electrical diagrams and their uses, electrical signals. Type of Distribution, Distribution network on board.
- 5.4. Main & emergency switch board, construction, different switch gear & protective devices, Grounded and Insulated neutral systems. Marine Electro technology W.e.f. AY 2018-19 Page 4 of 5
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