Discussion on “potential transformer testing” (Craighead), and “the testing of instrument transformers” (Agnew and Silsbee), Boston, Mass., June 28, 1912. (see proceedings for June, 1912)

Clayton H. Sharp: Regarding the last statement of Dr. Wenner, in his abstract of the paper by Messrs. Agnew and Silsbee, I find it rather surprising, inasmuch as the identical method for testing current transformers, with the exception of the vibration galvanometer detector, has been in use in our laboratory for two or three years, and a description of it was presented to the convention of the Institute three years ago, I think, at Frontenac. The method is absolutely identical with the one described in the TRANSACTIONS of the Institute, to which I refer, and we included a satisfactory detector, so that I do not see how in presenting a description of this method the statement could be made that no satisfactory detector was at hand. It was indicated at that time.