Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 370
unt across the high potential terminals. The spark gap is setfor the desired voltage by the use of a calibration curve, or by a preliminarycalibration by means of a voltmeter connected to the low-tension side, theratio of transformation being known. The apparatus to be tested is thenconnected to… … Fig. 17. High Potential Testing Transformer. Transformers for Constant; Secondary Current. Several methods have been tried with more or less success to obtain con-stant current at the secondaries of transformers. The simplest and earliest system for obtaining a constant current in thesecondary is…
Electrical engineering
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