please solve the question lmlmlmlm Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of thetransformer equivalent circuit are: R₁ = 0.5 2, R2 = 0.005 Q2, Xı = 0.5 Q. X2-0.005 0. Theexcitation impedance parameters referred to LVS are: Re 500 2 and X - 50 9. Thetransformer is fully-loaded at 0.8 PF lagging and the load voltage is maintained at 200 V.Using the approximate L-equivalent circuit, the voltage regulation of the transformer is:3.45%5.2 %0.7%71%32

Given data 20kVA, 50Hz, 2000/200V transformer R1 = 0.5, R2 = 0.005, X1 = 0.5, X2 = 0.005, Rc = 500…

Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer equivalent circuit are: R1 = 0.5 2, R2 = 0.005 2, X1₁ = 0.5 2, X2= 0.005 2. The excitation impedance parameters referred to LVS are: Rc = 500 2 and XM transformer is fully-loaded at 0.8 PF lagging and the load voltage is maintained at 200 V. = 50 Q2. The Using the approximate L-equivalent circuit, the voltage regulation of the transformer is: 3.45 % 5.2 % ● 0.7% 7.1%

Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer equivalent circuit are: R1 = 0.5 2, R2 = 0.005 2, X1₁ = 0.5 2, X2= 0.005 2. The excitation impedance parameters referred to LVS are: Rc = 500 2 and XM transformer is fully-loaded at 0.8 PF lagging and the load voltage is maintained at 200 V. = 50 Q2. The Using the approximate L-equivalent circuit, the voltage regulation of the transformer is: 3.45 % 5.2 % ● 0.7% 7.1%

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 3.26P: A bank of three single-phase transformers, each rated 30MVA,38.1/3.81kV, are connected in Y- with a...

See similar textbooks

Similar questions

For an ideal 2-winding transformer, an impedance Z2 connected across winding 2 (secondary) is referred to winding 1 (primary) by multiplying Z2 by (a) The turns ratio (N1/N2) (b) The square of the turns ratio (N1/N2)2 (c) The cubed turns ratio (N1/N2)3
The ratings of a three-phase three-winding transformer are Primary(1): Y connected 66kV,15MVA Secondary (2): Y connected, 13.2kV,10MVA Tertiary (3): A connected, 2.3kV,5MVA Neglecting winding resistances and exciting current, the per-unit leakage reactances are X12=0.08 on a 15-MVA,66-kV base X13=0.10 on a 15-MVA,66-kV base X23=0.09 on a 10-MVA,13.2-kV base (a) Determine the per-unit reactances X1,X2,X3 of the equivalent circuit on a 15-MVA,66-kV base at the primary terminals. (b) Purely resistive loads of 7.5 MW at 13.2 kV and 5 MW at 2.3kV are connected to the secondary and tertiary sides of the transformer, respectively. Draw the per- unit impedance diagram, showing the per-unit impedances on a 15-MVA,66-kV base at the primary terminals.
The direct electrical connection of the windings allows transient over voltages to pass through the auto transfonner more easily, and that is an important disadvantage of the autotransformer. (a) True (b) False
In per-unit equivalent circuits of practical three-phase transformers, under balanced thr-phase operation, in which of the following connect ions would a phase-shifting transformer come up? (a) Y-Y (b) Y- (c) -
A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters: Resistance of the 2400-V winding: R1=0.75 Resistance of the 240-V winding: R2=0.0075 Leakage reactance of the 2400-V winding: X1=1.0 Leakage reactance of the 240-V winding: X2=0.01 Exciting admittance on the 240-V side =0.003j0.02S (a) Draw the equivalent circuit referred to the high-voltage side of the transformer. (b) Draw the equivalent circuit referred to the low-voltage side of the transformer. Show the numerical values of impedances on the equivalent circuits.
For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the rated voltage on the other winding? (a) Yes (b) No
With the American Standard notation, in either a Y-or-Y transformer, positive- sequen quantities on the high-voltage side shall lead their corresponding quantities on the low-voltage side by 30. (a) True (b) False
A bank of three single-phase transformers, each rated 30MVA,38.1/3.81kV, are connected in Y- with a balanced load of three 1, Y-connected resistors. Choosing a base of 90MVA,66kV for the high-voltage side of the three-phase transformer. spify the base for the low-voltage side. Compute the per-unit resistance of the load on the base for the low-voltage side. Also, determine the load resistance in ohms referred to the high-voltage side and the per-unit value on the chosen base.
A single-phase transformer has a voltage ratio on open circuit of 7900/660 V. The primary and secondary resistances are 0.55 ohm and 0.035 ohm respectively. The corresponding leakage reactances being 4.22 ohm and 0.18 ohm. The load is equivalent to a coil of resistance 3.85 ohm and inductive reactance of 4.2 ohm. Determine the terminal voltage of the transformer and the output in kW when supplying a given load using approximate equivalent circuit when the applied voltage is 7912 V. Your answer
Seconday winding of transformer is made-up of material. O insulated CRGO conductor O insulated copper conductor O Cold Rolled Grain Oriented (CRGO) conductor Cold Rolled Grain Oriented (CRGO) Silicon Steel
In no load phasor diagram of practical transformer, the magnetizing current Imag is with primary voltage Vp. O Leading by 30° O 90° out of phase O In phase O Lagging by 60°
Help me to solve the average current, peak current, transformer