Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 57
ossible. This requirement should be met by having asmany commutator segments as possible ^nce the disturb-ance caused by the brushes passing from one segment to thenext may be thus reduced in the inverse proportion of thenumber of commutator segments. High-voltage generatorsusually require a large… … Fig. 15.—^Dynamotor for producing high-voltage direct current from alow-voltage direct-current supply. which is known as a dynamotor, has a single field andarmature, but two separate windings on the armature whichare insulated from one another. Each of these windings isbrought out to its own…
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