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Electrical System Design IPU EEE notes and question paper free download - Dipesh S - 05-04-2017
SYLLABUS:-
UNIT-I
Design of D.C Machines: Design specifications – output equation – output coefficient – specific loadings – choice of speed and number of poles – calculation of D and L – Armature design – choice of type of winding – number of sots – number of conductors per slot – current density – cross sectional area – slot insulation – length of air gap – field winding design – field ampere turns – excitation voltage per coil – conductor cross section – height of pole – design of ventilating ducts – design of commutator and brushes – Carter’s coefficient – real and apparent flux density.
UNIT- II
Transformers: Design – single phase and three phase – output equation – specific magnetic loading – core design – single, stepped core – windings – number of turns – current density – area of cross section of conductors – types of coils – insulation – window area – window space factor – overall dimensions – cooling – design of cooling tank with tubes – design of distribution and power transformers – design of small transformers like 230V/6-0-6V. Heating, cooling and temperature rise calculation – Continuous, short time and intermittent rating.
UNIT-III
Design of Synchronous Machines: Specific loading – output equation – output coefficient – main dimensions – types of winding – design of field system – turbo alternator – main dimensions – stator design – rotor design – damper winding design – comparison of water wheel and turbo alternators, cooling of turbo alternator. Design of three phase Induction motors: output equation – output coefficient – main dimensions – rotor bar currents.
UNIT-IV
Estimate the quantity of materials required and draw the electrical wiring layout of
(a) residential building
(b) Multi-storied building using rising mains
© factory with one number of small and high rating motor at LT ot HT supply and many number of connected loads with suitable starters/switches and control panels
(d) Cinema hall design, layout and estimation of power supply arrangement for
(1). A bulk Industrial consumer
(2) An underground power supply
(3) An Over head line to a rural consumer.
Estimate and draw the layout of
(1) indoor
(2) outdoor 11KV transformer station with all accessories – single line diagram and physical layout
Design and draw the typical earthing installation like
(1) pipe earthing
(2) Plate earthing
(3) earth mat/grid.