Civil Engineering - Shridhar University
Civil Engineering - Shridhar University Civil Engineering - Shridhar University
coupled circuit and magnetic field view point, rotating magnetic fields, torque production in synchronous, induction and DC machines. Synchronous Machines I Theory of non-salient pole synchronous machines, basic synchronous machine models, equivalent circuit and phasor diagrams of synchronous machines, saturation effects, armature reaction, open circuit, short circuit and zero power factor lag tests on synchronous machines, synchronous reactance, SCR, voltage regulation of alternators by synchronous impedance, MMF and zero power factor method, excitation systems of alternators Synchronous Machines II Generator input and output, steady state power angle characteristics, parallel operation of synchronous machines, load sharing, operation of synchronous machines with infinite bus bars, synchronizing torque, active and reactive power flows, general load diagram, V-curves. Synchronous Machines III Theory of salient pole synchronous machines, two-reaction theory, phasor diagram, power angle characteristics, determination of Xd and Xq, stiffness of coupling synchronous motors, phasor diagrams, starting of synchronous machines, damper winding. Polyphase Induction Machines Cage and slip-ring induction motors, equivalent circuit, phasor diagram, normalized torque- speed (slip) relationship, starting and speed control of induction motors, cogging and crawling, double cage induction motors, testing of induction motors, circle diagram. Text Books: 1. Electrical Machines by Smarajit Ghosh, Pearson Education 2. Performance & Design of A.C. Machines by M.G. Say, C.B.S. Publishers Reference Books: 1. Electric Machines by Nagrath & Kothari, TMH Pbs. 2. Electric Machines by P.K. Mukherjee & S.Chakravarti, Dhanpat Rai 3. Electrical machines by B. R, Gupta, New age international.
BT402 Material Science & Engg 3 1 0 3 PURPOSE The purpose of this course is to develop comprehension of the rapidly changing technological scenario and the requisite expertise for appropriate selection of materials for specific engineering applications. INSTRUCTIONAL OBJECTIVES At the end of the course, the student will be able to Understand electrical properties of materials, Understand the properties and applications of semi conducting materials, Understand general properties and applications of magnetic and dielectric materials, Understand the behaviour of materials on exposure to light, Understand general properties and application of modern engineering and bio materials, and get familiarized with the concepts of Nano Science and Technology ELECTRONIC AND PHOTONIC MATERIALS Electronic materials: Importance of Classical and Quantum free electron theory of metals - Fermi energy and Fermi Dirac distribution function - Variation of Fermi level with temperature in intrinsic and extrinsic semiconductors - Hall effect - Dilute Magnetic Semiconductors (DMS) and their applications - High temperature Superconductivity. Photonic materials: LED and LCD materials - Photo conducting materials - Nonlinear optical materials (elementary ideas) and their applications. MAGNETIC, DIELECTRIC AND MODERN ENGINEERING MATERIALS Magnetic materials: Ferrites and garnets - Magnetic bubbles and their applications - Giant Magneto Resistance (GMR) - Colossal Magneto Resistance (CMR). Dielectric materials: Various polarization mechanisms in dielectrics (elementary ideas) and their frequency and temperature dependence - Dielectric loss - Piezo electric and ferro electric materials and their applications. Modern engineering materials: Shape memory alloys - Metallic glasses - Advanced ceramics and composites. BIO MATERIALS Classification of biomaterials - Comparison of properties of some common biomaterials - Effects of physiological fluid on the properties of biomaterials - Biological responses (extra and intra
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coupled circuit and magnetic field view point, rotating magnetic fields, torque production in<br />
synchronous, induction and DC machines.<br />
Synchronous Machines I<br />
Theory of non-salient pole synchronous machines, basic synchronous machine models,<br />
equivalent circuit and phasor diagrams of synchronous machines, saturation effects,<br />
armature reaction, open circuit, short circuit and zero power factor lag tests on synchronous<br />
machines, synchronous reactance, SCR, voltage regulation of alternators by synchronous<br />
impedance, MMF and zero power factor method, excitation systems of alternators<br />
Synchronous Machines II<br />
Generator input and output, steady state power angle characteristics, parallel operation of<br />
synchronous machines, load sharing, operation of synchronous machines with infinite bus<br />
bars, synchronizing torque, active and reactive power flows, general load diagram, V-curves.<br />
Synchronous Machines III<br />
Theory of salient pole synchronous machines, two-reaction theory, phasor diagram, power<br />
angle characteristics, determination of Xd and Xq, stiffness of coupling synchronous motors,<br />
phasor diagrams, starting of synchronous machines, damper winding.<br />
Polyphase Induction Machines<br />
Cage and slip-ring induction motors, equivalent circuit, phasor diagram, normalized torque-<br />
speed (slip) relationship, starting and speed control of induction motors, cogging and<br />
crawling, double cage induction motors, testing of induction motors, circle diagram.<br />
Text Books:<br />
1. Electrical Machines by Smarajit Ghosh, Pearson Education<br />
2. Performance & Design of A.C. Machines by M.G. Say, C.B.S. Publishers<br />
Reference Books:<br />
1. Electric Machines by Nagrath & Kothari, TMH Pbs.<br />
2. Electric Machines by P.K. Mukherjee & S.Chakravarti, Dhanpat Rai<br />
3. Electrical machines by B. R, Gupta, New age international.
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