Experiment 4 Load Test on a D.C. Shunt Motor

Chapters in this book

1. Frontmatter i
2. Contents v
3. Experiment 1 To Determine Internal Resistance of a Battery 1
4. Experiment 2 Load Test on a D.C. Series Generator 5
5. Experiment 3 Load Test on a D.C. Series Motor 9
6. Experiment 4 Load Test on a D.C. Shunt Motor 13
7. Experiment 5 Load Test on a D.C. Shunt Generator 19
8. Experiment 6 Load Test on a D.C. Compound Motor 23
9. Experiment 7 Load Test on a D.C. Compound Generator 29
10. Experiment 8 No-Load Test on a Separately Excited D.C. Generator (Magnetization Characteristic) 33
11. Experiment 9 No-Load Test on a D.C. Shunt Generator (Magnetization Characteristic) 37
12. Experiment 10 No-Load Test on a D.C. Shunt Motor (Swinburne Test) 41
13. Experiment 11 To Perform a Hopkinson Test on Two Identical D.C. Shunt Machines 47
14. Experiment 12 Open-Circuit Test and Short-Circuit Test on a Single-Phase Transformer 51
15. Experiment 13 Load Test on a Single-Phase Transformer 57
16. Experiment 14 Back-to-Back Test on Two Identical Transformers (Sumpner Test) 61
17. Experiment 15 Separation of Losses in a Single-Phase Transformer (Separation of Eddy Current and Hysteresis Loss) 65
18. Experiment 16 Separation of Losses in a D.C. Shunt Motor 69
19. Experiment 17 To Perform a Load Test on a Three-Phase Slip-Ring Induction Motor 73
20. Experiment 18 To Perform a No-Load and Blocked Rotor Test on a Three-Phase Squirrel Cage Induction Motor 79
21. Experiment 19 No-Load Test and Short-Circuit Test on a Three-Phase Alternator 85
22. Experiment 20 A Load Test on a Three-Phase Synchronous Generator 91
23. Experiment 21 To Determine Regulation of a Three-Phase Alternator at Full Load, Lagging Power Factor, and Leading Power Factor 95
24. Experiment 22 To Determine the V-Curve and Inverted V-Curve of a Synchronous Motor 99
25. Experiment 23 To Determine Regulation of a Three-Phase Alternator for Full Load at a Power Factor Using the Zero Power Factor Method or the Potier Triangle Method 103
26. Experiment 24 To Determine the Regulation of a Three-Phase Alternator at a Load and Its Power Factor by the MMF Method 109
27. Experiment 25 To Measure the Iron Loss at Different Flux Densities with a Lloyd Fisher Magnetic Square 113
28. Experiment 26 Study of Overcurrent Relay (I.D.M.T. Type) and Determination of the Time-Current Characteristic 121
29. Experiment 27 Study of the Instantaneous Relay and Determination of the Pickup and Reset Values 125
30. Experiment 28 Study of the Directional Overcurrent Relay 127
31. Experiment 29 Study of the Percentage Differential Relay 131
32. Experiment 30 To Plot Burden Current Characteristics of the Given Current Transformers 135
33. Experiment 31 For the Given Current Transformer and Burden to Find the Ratio and Phase Angle Error 141
34. Experiment 32 To Plot the Power-Angle Curve of a Three-Phase Salient Pole Synchronous Generator 147
35. Experiment 33 Determination of X_d and X_q by Slip Test 153
36. Experiment 34 To Study the Effect of the Brush Separation and Brush Shift on the Speed and Power Factor of the Schrage Motor 157
37. Experiment 35 To Plot Magnetization Characteristics and Load Characteristics of Metadyne Generators 163
38. Experiment 36 To Plot the Magnetization Characteristic and Load Characteristic of an Amplidyne Generator 169
39. Experiment 37 To Determine Negative Sequence and Zero Sequence Reactions of a Synchronous Machine 173
40. Experiment 38 To Determine Parameters of a Single-Phase Induction Motor 177
41. Experiment 39 Measurement of a Small Resistance by Kelvin’s Double Bridge 183
42. Experiment 40 Calibration of a Watt-Hour Meter by a Standard Wattmeter 187
43. Experiment 41 Calibration of A.C. Wattmeter by a Standard Voltmeter and Ammeter 191
44. Experiment 42 Calibration of an Ampere-Hour Meter by a Standard Ammeter 193
45. Experiment 43 To Find an Unknown Inductance with Hay’s Bridge 195
46. Experiment 44 To Determine a Value of High Resistance by the Loss of Charge Method 199
47. Experiment 45 Calibration of a Wattmeter and Ammeter by Crompton’s Potentiometer 203
48. Experiment 46 Study of an Impulse Generator (1.6 Million Volts) 207
49. Experiment 47 To Determine the Breakdown Voltage of an Oil Sample 213
50. Experiment 48 To Determine the Breakdown Characteristics 219
51. Experiment 49 To find the voltage distribution across a string of a suspension insulator having five units, and to determine the efficiency of a string of insulators and to plot a graph between percentage voltage and the number of insulators from the line end 227
52. Questions and Answers in Electrical Engineering 231