Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 378
nism. Each revolution of the synchronoscope pointerrepresents one cycle difference in frequency between thealternators. The deflection of the pointer from zero at anyinstant represents the phase angle between the machines. The synchronoscope is not intended to be kept energizedwhen not in use or to… … Fig. 422. -Synchronism indicator that operates on the electrodynamometer principle. is plugged in circuit; if necessary, the synchronism indicatormay be plugged in for a moment in order to determinewhether the incoming machine is fast or slow. Just as thelamps can be checked against the…
Electric machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
