7EE6.5 ELECTRICAL MACHINE DESIGN
 

1. GENERAL: Basic principles of electrical machine design. Factors and limitations in design, Main dimensions, output equations and output co-efficient, classification of magnetic materials and allowable flux densities. Calculation of magnetic circuits, magnetizing, current, coils for given ampere-turns. Real and apparent flux densities. Tapered teeth. Carter's coefficient, leakage fluxes reactances. Classification of insulation materials and their temperature ranges.

2. ARMATURE WINDING: General features of armature windings, single layer and double layer and commentator windings, integral and fractional slot windings, winding factors.

3. HEATING COOLING AND VENTILATION: Heat dissipation, heat flow, heating cooling curves. Heating cooling media. Quantity of cooling media. Types of enclosures. Ratings, heat dissipation. Methods of ventilation.

4. APPLICATION OF ABOVE DESIGN PRINCIPLES TO THE FOLLOWING DESIGN: Power transformers & Distribution Transformer, Induction amchines and synchronous machies.

RECOMMENDED BOOKS:

1. A.K. Sachney electrical machine design 2.V.N. Mittle Electrical Machine Design

2. R.K. Agrawal-Electrical machine Design