(b) Open Circuit and Short Circuit tests were conducted on a 12V/115V single phase transformer and the following results obtained: Open Circuit Test: Vp = 12V Vs = 115V I,= 2.5A Pin= 10W %D Short Circuit Test: Vp = 1.25V Ip= 16A Pin= 8W (i) Sketch the relevant equivalent circuit for each test and from these and the above results calculate the various equivalent circuit components and turns ratio. (ii) Determine the required secondary load resistance to operate at the maximum efficiency point at 12V input voltage. Indicate any approximations in the calculation. (iii) Determine the efficiency and voltage regulation for operation with this load resistance.

(b) Open Circuit and Short Circuit tests were conducted on a 12V/115V single phase transformer and the following results obtained: Open Circuit Test: Vp = 12V Vs = 115V I,= 2.5A Pin= 10W %D Short Circuit Test: Vp = 1.25V Ip= 16A Pin= 8W (i) Sketch the relevant equivalent circuit for each test and from these and the above results calculate the various equivalent circuit components and turns ratio. (ii) Determine the required secondary load resistance to operate at the maximum efficiency point at 12V input voltage. Indicate any approximations in the calculation. (iii) Determine the efficiency and voltage regulation for operation with this load resistance.

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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In single phase transformer, if the secondary turns N2 is greater than the primary turns N1, then what is the relation between V2 and V1? O a. V2 = V1 O b. V2 > V1 O c. V1 < V2 O d. V2 < V1
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Why we used isolation transformer
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