Transformers and Generators Lab (1BEEL306)

Transformers and Generators Lab

Course Code 1BEEL306 
Scheme 2025
Type of Course Professional Core Course Lab 
Semester III
Teaching Hours/Week (L:T:P) 0:0:2
 CIE Marks 50
Total Hours of Pedagogy L:T:P: (SL&TW) 0:0:28:2 
SEE Marks 50
Credits 01 
Total Marks 100
Examination type (SEE) Practical 
Exam Hours 3

List of experiments

(1)Open-circuit and short-circuit tests on a single-phase step-up/step-down transformer and predetermination of: (i) Efficiency and regulation, and (ii) Parameters of the equivalent circuit.

(2)Polarity Test and Star–Delta Connection of Three Single-Phase Transformers with Efficiency and Regulation under Balanced Load.

(3)Determination of Combined and Individual Transformer Efficiencies using Sumpner’s Test.

(4)Parallel operation of two dissimilar single-phase transformers of different kVA ratings and determination of load sharing.

(5)Separation of hysteresis and eddy current losses in a single-phase transformer.

(6)Comparison of performance of three single-phase transformers in delta–delta and V–V (opendelta) connections under load.

(7) Scott connection for conversion of 3 phase supply to 2 phase supply and plot of secondary side voltages with respect to load variation.

(8)Direct load test on a three-phase synchronous generator to determine efficiency and regulation.

(9) Determination of voltage regulation of an alternator by the EMF and MMF method.

(10) Determination of power-angle characteristics of a synchronous generator and determination of maximum power developed.

(11) Performance of a synchronous generator connected to an infinite bus under constant load and variable excitation.

(12) Slip test and determination of 𝑋𝑑 and 𝑋𝑞.

Textbooks:

(i)Electric Machines, D. P. Kothari, et al, 4th Edition, 2011.

(ii)Electric Machines, Ashfaq Hussain, Dhanpat Rai & Co, 2nd Edition, 2013.

(iii)Electric Machinery, P.S. Bimbhra, Khanna Publishers.

(iv) Theory & Performance of Electrical Machine, J.B. Gupta, S.K. Kataria & Sons.