2. A 60-Hz single-phase transformer has a turns ratio (a = Nı/N2) of 0.5. The resistive load on thesecondary is 48 N.Primary winding resistance: R1 = 0.25 NSecondary winding resistance: R2 = 2.2 NPrimary winding leakage reactance: X1 = 2.02Secondary winding leakage reactance: X2 = 5.0 2Exciting admittance: NegligibleIf the applied voltage at the terminals of the primary is 2400 V, determine V2 at the loadterminals of the transformer, neglecting magnetizing current.a.b. If the voltage regulation is defined as the difference between the voltage magnitude at theload terminals of the transformer at full load and at no load in percent of full-load voltagewith input voltage held constant, compute the percent voltage regulation.

The secondary side voltage of transformer,

Answered: 2. A 60-Hz single-phase transformer has…

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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Similar questions

RL Circuit For the circuit in Figure 3 a switch is in the left position (as shown) for a long time and then moved to the right at timet = (a) Draw "Circuit A" at time t = 0¯, the configuration just before the switch is flipped (b) Draw "Circuit B" at time t = 0+, the configuration just after the switch is flipped (c) Find the expression i,(t) which describes the current through inductor for time t > 0 (d) Find the expression vi(t) which describes the voltage across the inductor for time t > 0 Figure 4 50 Ω ЗА 800 mH i 5 A 600 2
Transformers
q3
In no load phasor diagram of practical transformer, the magnetizing current is with flux 4. In phase 90 Degree out of phase Lagging by 60 Degrees Leading by 60 Degrees
A 50 Hz, Scott connected transformer supplies an unbalanced two phase load at ( 400 V) per phase. For the leading phase the load has a resistance of (13.3 ohm) and capacitor of (318) micro farad in series. For the other phase the load consists of resistance (10) ohm and an inductance of (42.3) mH. Calculate both mathematically and graphically the lines currents on 3-phase side. The main transformer primary to secondary turns ratio is (12/1).
In no load phasor diagram of practical transformer, the magnetizing current Imag is with flux Ø O Leading by 30° O Lagging by 60° In phase O 90° out of phase
4. 100 kVA, 6800-240 V, 50 Hz single phase step down transformer has the following parameters: RLs=0.0082 RHs=2.62 Rfe-HS=50002 XLs=0.015N XHs=5.2N Xm.Hs=88002 Transformer is delivering 80% of rated load at rated voltage and 0.95 lagging power factor. Determine the following: a) The equivalent impedance of the transformer referred to primary. b) Input impedance of the combined transformer and load. c) Actual input voltage at HV side. d) Input impedance if load is disconnected. e) Exciting current at no load.
Current transformer has Select one: O a. No relation between primary windings and its secondary windings O b. More secondary windings than its primary windings O C. Primary windings equal to secondary windings O d. More primary windings than its secondary windings
The equivalent circuit impedances of a 20-kVA, 8000/240-V, 60-Hz transformer are to be determined. The open-circuit test and the short- circuit test were performed on the primary side of the transformer, and the following data were taken: Open-circuit test (on primary) Short-circuit test (on primary) 8000 V V= 489 V I0.214 A 2.5 A P= 400 W P= 240 W Find the impedances of the approximate equivalent circuit referred to the primary side, and sketch the circuit.
Why we used isolation transformer
A single phase transformer has a 600 turns in the pri- mary and 1200 turns in the secondary. The cross sec- tional area of the core is 905 sq.cm. If the primary winding is connected to a 50 Hz supply at 400V. The peak flux density is wb/m²
In no load Phasor diagram of practical transformer, the core loss current Ic is with primary voltage Vp. O Lagging O in phase O Leading O 90 degrees out of phase

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