31. The all-day efficiency of a transformer dep primarily on (a) its copper loss (b) the amount of load (c) the duration of load (d) both (b) and (c). 32. The marked increase in kVA capacity produced by connecting a 2 winding transformer as an autotransfomer is due to (a) increase in turn ratio (b) increase in secondary voltage (c) increase in transformer efficiency (d) establishment of conductive link between primary and secondary. 33. The kVA rating of an ordinary 2-winding transformer is increased when connected as an autotransformer because (a) transformation ratio is increased (b) secondary voltage is increased (c) energy is transferred both inductively and conductivity (d) secondary current is increased. 34. The saving in Cu achieved by converting a 2-winding transformer into an autotransformer is determined by (a) voltage transformation ratio (b) load on the secondary (c) magnetic quality of core material (d) size of the transformer core. H

31. The all-day efficiency of a transformer dep primarily on (a) its copper loss (b) the amount of load (c) the duration of load (d) both (b) and (c). 32. The marked increase in kVA capacity produced by connecting a 2 winding transformer as an autotransfomer is due to (a) increase in turn ratio (b) increase in secondary voltage (c) increase in transformer efficiency (d) establishment of conductive link between primary and secondary. 33. The kVA rating of an ordinary 2-winding transformer is increased when connected as an autotransformer because (a) transformation ratio is increased (b) secondary voltage is increased (c) energy is transferred both inductively and conductivity (d) secondary current is increased. 34. The saving in Cu achieved by converting a 2-winding transformer into an autotransformer is determined by (a) voltage transformation ratio (b) load on the secondary (c) magnetic quality of core material (d) size of the transformer core. H

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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