| 摘要 |
1,061,580. Control of several D.C. motors. QUALTER HALL & CO. (SALES), Ltd. Aug. 20, 1965 [Sept. 1, 1964]. No. 35820/64. Heading H2J. In a D.C. traction system, two series motors have their field windings connected in series and their armatures are in parallel. In a multiplemotor system, the motors are arranged in two groups, and the groups are arranged for seriesparallel control. The arrangement is such that if one motor loses its load, the other motor will develop additional torque. |
