(B)- Indicate whether the following statemenits are true or false and correct the false statements 1-By field Diverter method, the speed of d.c series motor can be controlled a above rated value F 2- if the supply frequency in a transformer is doubled, eddy current loss also doubled 3- A d.c series motor should not be started with load 4- Compensating winding in dc generator carries field current 5-A single -phase transformer has its maximum efficiency at 60% of full load. At full load copper loss will be coual to core loss

(B)- Indicate whether the following statemenits are true or false and correct the false statements 1-By field Diverter method, the speed of d.c series motor can be controlled a above rated value F 2- if the supply frequency in a transformer is doubled, eddy current loss also doubled 3- A d.c series motor should not be started with load 4- Compensating winding in dc generator carries field current 5-A single -phase transformer has its maximum efficiency at 60% of full load. At full load copper loss will be coual to core loss

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.9P

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