EE8002 Design of Electrical Apparatus (DEA)
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2.Design of rotor& Ring squirrel cage **
3.Im,d,l,Z's,In,ae UNIT-5 1.Brushless DC 2.Design of salient pole machines
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UNIT I DESIGN OF FIELD SYSTEM AND ARMATURE
Major considerations in Electrical Machine Design – Materials for Electrical apparatus – Design of Magnetic circuits – Magnetising current – Flux leakage – Leakage in Armature. Design of lap winding and wave winding.
UNIT II DESIGN OF TRANSFORMERS
Construction - KVA output for single and three phase transformers – Overall dimensions –
design of yoke, core and winding for core and shell type transformers – Estimation of No
load current – Temperature rise in Transformers – Design of Tank and cooling tubes of
Transformers. Computer program: Complete Design of single phase core transformer
UNIT III DESIGN OF DC MACHINES
Construction - Output Equations – Main Dimensions – Choice of specific loadings – Selection of number of poles – Design of Armature – Design of commutator and brushes –
design of field Computer program: Design of Armature main dimensions
UNIT IV DESIGN OF INDUCTION MOTORS Construction - Output equation of Induction motor – Main dimensions – choice of specific loadings – Design of squirrel cage rotor and wound rotor –Magnetic leakage calculations – Operating characteristics : Magnetizing current - Short circuit current – Circle diagram - Computer program: Design of slip-ring rotor
UNIT V DESIGN OF SYNCHRONOUS MACHINES
Output equations – choice of specific loadings – Design of salient pole machines – Short circuit ratio – Armature design – Estimation of air gap length – Design of rotor –Design of damper winding – Determination of full load field MMF – Design of field winding – Design of turbo alternators -Computer program: Design of Stator main dimensions-Brushless DC
Machines