(1) A dc drives are operating in--------- quadrants when the supply voltage is------ ---than the back emf, and in the -------quadrants when the supply voltage is --------than the back emf. „For a speed less than the base speed, the- -are maintained constant at their rated value (2) .and the--------İs varied to control the speed (3) In a single phase semi-converter dc drives a freewheeling diode is used to ensure- (4) In a single phase full-converter dc drives, the motor is operating in the 1" quadrants if the armature converter firing angle is--------and in the 4 th quadrants if the armature converter firing angle is---------. (5) In constant power drive, the speed is controlled by

(1) A dc drives are operating in--------- quadrants when the supply voltage is------ ---than the back emf, and in the -------quadrants when the supply voltage is --------than the back emf. „For a speed less than the base speed, the- -are maintained constant at their rated value (2) .and the--------İs varied to control the speed (3) In a single phase semi-converter dc drives a freewheeling diode is used to ensure- (4) In a single phase full-converter dc drives, the motor is operating in the 1" quadrants if the armature converter firing angle is--------and in the 4 th quadrants if the armature converter firing angle is---------. (5) In constant power drive, the speed is controlled by

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.12P

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