{"id":1024,"date":"2021-12-27T19:24:49","date_gmt":"2021-12-27T19:24:49","guid":{"rendered":"https:\/\/itgeeks.in\/home\/?p=1024"},"modified":"2021-12-27T19:24:51","modified_gmt":"2021-12-27T19:24:51","slug":"2k6me-304-electrical-machines","status":"publish","type":"post","link":"https:\/\/itgeeks.in\/home\/?p=1024","title":{"rendered":"2K6ME 304 ELECTRICAL MACHINES"},"content":{"rendered":"\n

Module I (12 hours)<\/strong>
DC Generators EMF equation – Armature reaction – Power flow diagram voltage build up- Internal and external characteristics – Control of terminal voltage DC Motors: Back EMF – Torque and speed equations- Power flow diagram- Losses – componentsefficiency- Performance characteristics – Starting method using 3 point starter- Speed control.
Module II (14 hours) .<\/strong>
Transformers: Ideal and real transformer – Equivalent circuit – Phasor diagram – Losses – efficiency and regulation – All day efficiency – OC and SC tests- Auto transformers – Voltage and current relationships – Saving of copper – Three phase transformers- Star and Delta connections . 3 phase induction motors -Production of torque – slip and frequency of rotor current – torque slip characteristics- no-load and blocked rotor tests- equivalent circuit -losses and power flow.
Module III (13 hours)<\/strong>
Starting methods for three phase induction motors – direct on line starting – auto transformer starting – star delta starting – rotor resistance starting Alternators – Voltage regulation \u2013 predetermination – EMF method – MMF method – Synchronizing with 3 phase mains Control of Permanent magnet stepper motors
Module IV (13 hours)<\/strong>
Electrical drives: advantages of electrical drives – parts of electrical. drives – choice of electric drives – status of DC and AC drives – dynamics of electric drives’ – fundamental torque equations – multiquadrant operation – equivalent values of drive parameters – components of load torque – nature and classification of load torque. Electrical drives: power semiconductor device- SCR – symbol and characteristics – input-output characteristic of AC to DC,. AC to AC and DC to DC converters (no derivation) – three phase induction motor drives- stator voltage control and slip power recovery scheme.<\/p>\n\n\n\n

Text books<\/strong>
1.\u00a0A Text Book of Electrical Technology- B.L. Thereja, A.K.Thereja for Module 1-3
2. Dubey et.al , Thyristorised power controllers, Narosa publications. for Module 4
Reference books<\/strong>
1. Nagarath I. J. & Kothari. D. P.; Electric Machines, Tata McGraw Hill<\/a>
2.\u00a0Stephen J Chapman, Electric Machinery Fundamentals, McGraw Hill.<\/a>
3. Tara V.D., Electrical Machines & Power Systems, Prentice Hall.
4.\u00a0Fitzgerald A.E. & Kingsley, Electrical \u00a5achinery, McGraw Hill.
5. Puchestein, Lloyd & Cenrad, Alternatirig Current Machines, Asia Publishing House.
6. Vincent Del Toro, Electrical Machines and Power Systems, Prentice Hall
7. M.D and Kanchandani K.B., Power Electronics, Tata Mc Graw Hill.
8.Electric Drives \u2013 N.K.De and P.K. Sen , Prentice Hall of India.<\/p>\n\n\n\n

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S3 Question Papers<\/a><\/div>\n\n\n\n
Notes<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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