QUESTION-4: A current transformer with a turns ratio of 400:5, has a secondary leakage impedance of j0.2 2, a burden impedance of j0.4 2 and a magnetizing impedance of j12 Q. The impedances are constant, regardless of the magnitude of the primary current. For a primary current of 460 A flowing in the main network, calculate the per unit current transformation error and the ratio correction factor. E Current transformer circuit

QUESTION-4: A current transformer with a turns ratio of 400:5, has a secondary leakage impedance of j0.2 2, a burden impedance of j0.4 2 and a magnetizing impedance of j12 Q. The impedances are constant, regardless of the magnitude of the primary current. For a primary current of 460 A flowing in the main network, calculate the per unit current transformation error and the ratio correction factor. E Current transformer circuit

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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A short transmission line connects a step-up transformer on the source side with a series impedance of j0.5 ohms (referred to the primary) to a step-down transformer on the load side with a series impedance of 50 ohms (referred to the primary). The turn ratio of the step-up transformer is 1:10 and a no-load primary voltage of 13.2 (line-to-line) kv. The step-down transformer has a turn ratio of 15:1 and it has a Y-connected, balanced load of 0.667 +j 0.111 ohms connected to its secondary side. A capacitor bank of -j0.239 ohms is added parallel to the load. Assuming an ideal transmission line, the effective impedance of the system (per phase) seen by the source would be: O A. 0.093 + j0.249 O B. 0.372 + j0.996 OC.3.72 + j9.96 O D. None of the other choices are correct O E. 0.186 + j0.498
Here is a single phase transformer, 15 kVA, 15000/380 V, 50 Hz has Ze-0.02+j0.05 perunit, R. 50 perunit, and Xm =30 perunit, (per unit = actual value/base value), for scaling of the problem. (pu). A) Compute and draw the equivalent circuit components in Qs referred to the low-voltage side, B) Low voltage side is connected to a load of 4L 90° (lagging) and HV side is supplied by 15KV, compute voltage drop on the load V2 and voltage regulation VR.
3) A three-phase transformer of 60 kVA (three-phase power), 13200/480 V (line A line) in delta-strella connection has a resistance of 0.02 PU and a reactance of 0.08 PU. For this transformer, calculate: a) The voltage regulation at full load and F.P. 0.85 in delay. (b) The regulation of voltage voltage to full cargo and F.P. Unitarian. c) The voltage regulation at full load and F.P. 0.85 in advance.
2.2. The figure below shows a radial transmission system with a generator having a per-unit voltage of 1.3 at an angle of 9 degree p.u. The load demand is 47MW at a power factor of 0.96lagging. Use the nameplate values of Transformer 2 as base values and calculate the following: Correct answers to three decimal places : 25..Per unit impedance of transformer and it's angle 26.Per unit voltage of the line and its angle 27.Per unit impedance of the line and its angle. And Reactance of the transmission line when the load consumes full-load (Ω).
The equivalent resistance and reactance referred to the secondary side of a 10 kVA, 2200/440 V, single phase transformer are 0.3 and 1.20 respectively. Then find the full load voltage regulation at (i) 0.8 lagging (ii) unity and (iii) 0.6 leading power factor.
need detailed solution and complete steps for the parts 4,5 and 6.
It is bartleybe's policy that if questions objective than you need to solve at least first 3 questions.