SUBMISSION OF DC MACHINES AND TRANSFORMERS (2130904)

Date of Submission: 05/10/2017

SEM: 3rd

Subject: DC MACHINES AND TRANSFORMERS (2130904)

Batch Distribution

A1 :  PHV                              B1 :   AAP

A2:  PKG                              B2 :   PKG

A3 : VGB                              B3 :  PAU

                                              B4 :   PHV

NOTE: AS PER THE BELOW LIST, STUDENTS ARE SUBMIT THEIR PPT  TO PROF. PALLAVI GAMIT ON DATE: 05/10/2017

GOVERNMENT ENGG. COLLEGE, BHARUCH
SEMESTER: 3RD                            SUBJECT: DCT                              DIV: A , B
DEPARTMENT: ELECTRICAL
Group will be as per serial no. of Enrollment no. of 5 student
Group NO.	Topic
1	Singly Excited Magnetic System and Doubly Excited Magnetic system
2	Pole pitch, Coil, Generated EMF in full pitched coil, Generated EMF in a short pitched coil, EMF polygon, Distribution factor, Pitch factor.
3	Simplex lap and wave windings.
4	Armature reaction
5	compensating windings – inter poles ,methods to improve commutation
6	power flow diagram ,Parallel operation of DC generators & motors
7	Necessity and types of starters – design of starters
8	Swinburne’s test – Hopkinson’s test
9	Separation of losses – retardation test – field test of dc motors – application of DC motor.
10	Testing- Open & short circuit tests, ,
11	Autotransformers - Construction, Principle, Applications and Comparison with two winding transformer
12	Scott connection – three winding transformer – tertiary winding –
13	Parallel operation of single phase and three phase transformers
14	Harmonics in  single phase and three phase transformers
15	Tap changing Transformers - No load and on load tap changing of transformers,
16	Special Transformers: Potential transformer,
17	Cooling methods of transformers
18	Pulse transformer,
19	3-phase transformer connections -
20	Current transformer,
21	Audio frequency transformer,
22	Grounding transformer
23	Polarity test
24	Sumpner’s test,
25	Separation of hysteresis and eddy current losses,
26	Equivalent circuit, voltage regulation, losses and efficiency  of single phase transformers
27	phasor diagram for single phase transformers with all loads
28	Methods of speed control of DC motors
29	performance characteristics of shunt, series and compound motors & generators
30	Principle, construction and operation of single phase transformers, Ideal transformer