XIV. EXPERIMENTS. 



PAGE. 



21. Determination of Power and Phase Relations in a 



Circuit Containing Resistance, Self-induction, and 

 Capacity 116 



22. Determination of Regulation of a Transformer . . . . 130 



23. Determination of Drop in a Transformer (Direct- 



Reading Method) 135 



24. Determination of Ratio of Windings of a Transformer 



(Without Alternating Current) 138 



25. Determination of Magnetising Current of a Trans- 



former at Various Voltages 141 



26. Determination of No-Load Current and Watts with 



Varying Frequency 146 



27. Separation of Losses in a Transformer 149 



28. Determination of Copper Losses in a Transformer . . 152 



29. Efficiency Test of a Transformer on Non-inductive 



Load 157 



30. Efficiency Test of a Transformer on Inductive Load . . 160 



31. Determination of Efficiency of a Transformer by 



Split Dynamometer 169 



32. Determination of Efficiency of a Pair of Transformers 



by Sumpner's Method 172 



33. Test of Uniformity of Ratio of Transformation in a 



Series of Similar Transformers 178 



34. Determination of Magnetisation Curve of an Alter- 



nator at No-Load 196 



35. Determination of Magnetisation Curve of an Alter- 



nator at Full Non-inductive Load 201 



36. Determination of the Characteristic of an Alternator . . 214 



37. Determination of Excitation Required to Maintain 



Constant Voltage 237 



38. Determination of Short - Circuit Magnetisation 



Curve, or Short-Circuit Characteristic -\A 



39. Determination of Relation Between Speed and 



Voltage of an Alternator at No-Load, at Full 

 Load, and on Short-Circuit 248 



40. To Synchronise an Alternator with Another Already 



Running 263 



41. To Start a Synchronous Motor and Ascertain the 



Limits of Excitation for which it will start . . . . 269 



42. Determination of the Effect of Variation of the 



Excitation of a Synchronous Motor 271 



