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 641
e markedupon the dial by 5, as all Avattmeters used Avith series transformers arewound for 5 amperes. In testing, connect the polyphase Avattmeter as shoAvn in Fig. 30. Bothshunt circuits of the integrating Avattmeter are connected. The main cur-rent, however, is passed through only one series coil… … Fig. 30. Load the circuit until the desired reading is obtained on the indicatingwattmeter, and keep it at a constant value AVhile the integrating wattmeteris being read. Time the revolutions of the aluminium disk for at least oneminute. To arrive at the number of watts registered by the…
Electrical engineering
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