Electricians' operating and testing manual; (1910)
Horstmann, Henry C. [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. H. Drake & co · leaf 330
e with a portable voltmeter andthe exact load can then be determined. See Figure193. A regular service meter accurately calibrated in theshop or laboratory may be used in checking up othermeters by connecting it in circuit as shown in Figure194. With the connection shown the voltage impressedon the… … Figure 194 by the drop in the series field of the other meter, isavoided. If the two meters are of the same type andcapacity the two revolving elements will rotate in uni-son when the meter being tested is correct. If themeters are of different capacity this must be takeninto account. The most…
Electrical engineering · Electric testing
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