Dynamic Braking Control of D-C Series Motors-Experimental Study of Speed-Torque Curves
|Author(s):||G. W. Heumann|
|Publisher:||IEEE - Institute of Electrical and Electronics Engineers, Inc.|
|Publication Date:||1 July 1949|
|Page(s):||560 - 564|
This paper presents the results of tests to determine the speed-torque characteristics of a d-c series motor driving a crane hoist. Direct readings of speed and torque during dynamic braking lowering operation were taken for various values of resistance in the motor circuit branches. A comparison between test data and calculated performance, using a conventional method of calculation, indicates that calculation obtains performance curves which are sufficiently accurate to forecast the performance of a practical crane hoist controller.