Transformers and Generators Lab
Course Code BEEL305
CIE Marks 50
Teaching Hours/Week (L:T:P: S) 0:0:2
SEE Marks 50
Credits 01
Total Marks 100
Exam Hours 03
Examination nature (SEE) Practical
Experiments
1 Open Circuit and Short circuit tests on single phase step up or step down transformer and
pre- determination of (i) Efficiency and regulation (ii) Calculation of parameters for equivalent circuit.
2 Sumpner’s test on similar transformers and determination of combined and individual transformer
efficiency.
3 Parallel operation of two dissimilar single-phase transformers of different kVA and determination of load.
4 Polarity test and connection of 3 single-phase transformers in star – delta and determination of efficiency
and regulation under balanced resistive load.
5 Comparison of performance of 3 single-phase transformers in delta – delta and V – V (open delta)
connection under load.
6 Separation of hysteresis and eddy current losses in single phase transformer.
7 Investigate the voltage and current ratios of a multi-tapped transformer and verify the ideal transformer
ratio.
8 Voltage regulation of an alternator by EMF and MMF methods.
9 Power angle curve of synchronous generator or Direct load test on three phase synchronous generator to
determine efficiency and regulation.
10 Performance of synchronous generator connected to infinite bus, under constant power and variable
excitation & vice - versa.
11 Model transformer in Simscape for Automatic Voltage Regulation.
12 Simulate power angle curve of generator in MATLAB.
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