Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1345
r vary in strength^ the instrument would not read correctly^but the magnets are so treated that the falling off in strengthover a number of years is inappreciable. The strip or shunt for portable instruments is alwaysinside the case, while for switchboard instruments the shunt 1310 Steam… … Fig. 613external shunts for ammeters. 1000 and 5000 ampere sizes Such a switchboard instrument is shown in Fig. 614 andFig. 615. A Voltmeter is made by removing the metal strip or shuntconnecting the terminals and placing a resistance coil inseries with the moving coil. Electro Meters 1311 As it…
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