Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 75
otor-. Motor Performance Curves, curves employed to exhibit the running and start-ing properties of motors. When a motoris running, the following quantities can bemeasured: Input, output, torque, speed, cur-rent, copper losses, iron losses, mechanicallosses. One of these being plotted… … o 2 J t s 6 Fig. 1.—Curves for Heyland 4-bhp Single-phase Motor the torque being plotted horizontally. Fig. 2shows a typical set of starting curves. Other curves are sometimes given, show-ing the performance of a motor as it runsup to speed in conjunction with a controller,and other auxiliary gear.…
Electrical engineering
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