Q- Electrical machines A single-phase 100 kVA, 1000 V/100 V, 50 Hz transformer has a voltage drop of 5% across its series impedance at full load. Of this, 3% is due to resistance. The percentage regulation of the transformer at full load with 0.8 lagging power factor is.

Q- Electrical machines A single-phase 100 kVA, 1000 V/100 V, 50 Hz transformer has a voltage drop of 5% across its series impedance at full load. Of this, 3% is due to resistance. The percentage regulation of the transformer at full load with 0.8 lagging power factor is.

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 3.33MCQ: The direct electrical connection of the windings allows transient over voltages to pass through the...

See similar textbooks

Related questions

Q: 2. Calculate Vout. 9V o 5V o R3 1K R4 2K R1 5K + 1 R2 3K Vout

Q: 1. Consider two coaxial, very long, cylindrical, thin shells. Both shells have length L. The inner…

Q: Q2/(1101101) Ex-3+(3F.6)16- (157.2)8=( )BCD(3321) O 0110 0111.0011 0001 0111 O 0110 1110.0001 0011…

Q: A unity feedback system with G(S) = K S(S+20)(S+40) is operating at 20% overshoot. Design a…

A: Here, given system is standard third order system as it contains three poles and no any zero. With…

Q: The value of Ic and VCE At the Q point for following circuit if oc=200 VBB 15V RB ww 47 ΚΩ Rc • 330…

A: Given, The circuit is, And βDC=200.

Q: Q9/G(A,B,C,D,E,F)={(2,3,5,7,22 ,23,32,33,34,35,37,39,52,53,54 ,55)+ dΣ(8,9,10,11,16,17,18,19,60,6…

Q: A 500 KVA, 1100 V, star connected alternator has an effective armature resistance of 0.2 Ω per…

Q: Find the values of R and the power supplied by the source. F 202 B Vs 792 www. RQ IA A 8 392 TIA…

Q: Example 2.8: Draw the electrical analogue circuit for the mechanical system of Fig. 2.8. Using the…

Q: Which of the following is/are a circuit with a supernode

A: To find the circuit with supernode

Q: Two small spheres, each having a mass of 0.3 g are suspended from a point by threads 20 cm long.…

A: We have two small spheres each having mass of 0.3 g and are suspended by thread of 20 cm long.…

Q: Find the Transfer Function: G(s) = V₁(s) VĄ(s) Show the details of your work. ΤΩ IF WHHE v(t) 192 IF…

Q: 6. Please prove the following: X 8(kx) * () = S(x) k where is convolution operation, and k is a…

Q: Does the common drain voltage follower produce a considerable amplification effect and if so, are…

A: An amplifier is a device that is used to increase a weak signal's strength without changing its…

Q: 6 similar amplifiers are cascaded, with lower cut-off frequency 100Hz. Bandwidth is B1=10 kHz. What…

A: The higher cut-off frequency lowers and the lower cut-off frequency rises as a result of cascading,…

Q: Q5/Find the addition result for the following operation (66)8+ (1100)EX-3+(83)10- (F2.1)16 using 2's…

Q: 1. Conditions: Continuous load rated 45A served by a conduit containing only the conductors for the…

A: Note::: you asked multiple questions as per guidelines I solved 1st question only.. remaining…

Q: 3. Conditions: A feeder with 250A of noncontinuous load and 60A of continuous load to be installed…

A: Given information, The feeder has 250 A of noncontinuous load and 60 A of continuous load. The…

Q: Q8/A switch network has 3- inputs (A, C, D) and 3- output (F,G,W), the input is binary number and…

Q: Voltage Source v www www R₂ V₂ (a) Write an equation for v₂ as a function of v₁, R₁, and R₂. That…

A: To write the equation for v2 for a function of v1, R1 , and R2 Which yields and open loop system…

Q: If IR1 = 0.065 mA and IR2 = 0.098 mA in a two branch parallel circuit, IT = 0.163 mA. True False

A: Given, In two parallel branch circuit the currents in each branch is, IR1=0.065 mA,IR2=0.098 mA. And…

Q: Q6/F1=A'B'+B'C+ABC+A'C' F2=A+B'C+A'C F3=B'+ABC F4=A'B+AB'C+A'BC' Chose the correct answer O F1=F3 O…

Q: R₁ Ⓒ S Ⓒ 2V R1 R3 ww V₂ (11-13) R1 R3 + R₂ Vx 1-1/2) (12₂) + ( 1 / 2² + R3 1 1 1 (2₁-23) (02) -…

A: Given circuit:- We have to find the KCL equation across the supernode.

Q: Using MATLAB. Generate a square wave signal whose peak amplitude is 1 V, frequency of 1000 Hz, and…

A: Given an electrical signal with following information, Type: Square wave Amplitude = 1 Signal…

Q: A generating station is laid out as shown in Fig. 17.21. The ratings and per- centage reactances of…

A: We have an layout of generating station as shown in figure now it has three main parts, first one is…

Q: Given:μ = 1200 The core has square cross section and all dimension are in cm. 10 A N₁ 500 turns r 50…

Q: For the following system, if the input X[k]= 8(k + 1) + 2.4k and output Y[k]= 2(k)u[k], the impulse…

Q: Q4/ The decimal 793.251)= ( number number ( O 1431.204 O 1431.200 O No one of them O 1341.200 O…

A: Given that The decimal number (793.251)=( ) in octal number

Q: Simulate and plot the output x and y by using M-file script. The t is the running time (from 0 to…

A: given functions x,y and matlab code is required for t = 0 to 1000 sec

Q: Q7/Chose the correct answer for the output Q of the following circuit (Assume that A…

Q: ) A coil of inductance L and resistance of 500 is connected in parallel with a 25µf capacitor across…

A: A resonant frequency is a vibrational frequency that arises naturally from the physical…

Q: Find the transfer function, Vo(s)/V;(s), for the circuit given below. Show the details of your work.…

Q: 3. A block diagram representation of a control system is given below R(S) a) Compute the closed loop…

Q: Q2/460V,25Hp,60Hz,four pole, three phase Y-connected wound rotor induction motor has the following…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: A single-phase, half-bridge inverter feeds a resistive load, R = 10 Ohms. If the source voltage is…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: • Create a new relay logic that will simplify the logic below. + A B C HH #HE D # C * A B #F (M) DC…

Q: Q5/Find the solution of the following operation for binary numbers 11010.101-100101.010…

A: In a digital computer, signed numbers are represented using two's complement. Simply invert the…

Q: Q6/F1=A'B'+B'C+ABC+A'C' F2=A'+B'C+A'C F3=B'+ABC F4=A'B+AB'C+A'BC' Chose the correct answer O O O O O…

Q: The following transfer function is type K s(6s² +5s+1) G(s) Select one: a. 0 b. non of the choices…

A: Given: Transfer function, Gs=Ks6s2+5s+1.

Q: For the following system, if the input x[k]= 8(k+ 1) +2.4k and output Y[k]= 2(k)u[k], the in…

Q: 1. Find vo. Note that is the voltage across the 4-ohm esistor. 192 40 V 5A 292 www 892 www 40 20 V

Q: Two resistances of 4 ohms and 6 ohms in parallel are in series with another resistor of 12 ohms. If…

Q: Queston- A capacitor of 10 uF takes a current of 2A when an alternating voltage is applied across is…

A: Given- Capacitance- C=10 μF=10×10-6 F,I=2 A,V=220 V, To Find- The frequency of the applied voltage.…

Q: In the circuit shown below, find the value of supply voltage V so that 20-ohm resistor can dissipate…

A: We have an circuit as shown in figure, We have been asked to find the, supply voltage if we want…

Q: C(S) 1. Compute the transfer function () for the block diagram given below. 4 pts R(S) R(S) G1 G2 H1…

Q: Pin=10dBm IL = 1dB cable Pix 100 Pout

A: Here Amplifier circuit is given followed by the cable of IL=1dB. The gain is given =100 Pin =10dBm…

Q: y₂ (1)=2[u(t)-u(t-1)] + [1+cos (πt-n)]-[u(t-1)-u(1-2)]

A: Given: y2t=2ut-ut-1+1+cosπt-π.ut-1-ut-2

Q: b- Fill in the blanks (Answer Two Only) 1- Give an application of three phase AC voltage controller.…

Q: If the source charge of 10 µC is located at the origin, determine the electric force on a charge of…

Q: b S1 Answer: a t=0 个 1A (S_2 is in the upper left corner, not s_1) 1. Find V (t) for t≥ 0. 1. V₂(t)…

Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

Question

Q-Electrical machines
A single-phase 100 kVA, 1000 V / 100 V, 50 Hz transformer has a voltage drop
of 5% across its series impedance at full load. Of this, 3% is due to resistance.
The percentage regulation of the transformer at full load with 0.8 lagging
power factor is.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

For an ideal 2-winding transformer, the ampere-turns of the primary winding, N1I1 is equal to the ampere-turns of the secondary winding, N2I2 (a) True (b) False
A single-phase 50-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down transformer at the load end of a 2400-volt feeder whose series impedance is (1.0+j2.0) ohm. The equivalent series impedance of the transformer is (1.0+j2.5) ohms referred to the high-voltage (primary) side. The transformer is delivering rated load at a 0.8 power factor lagging and at a rated secondary voltage. Neglecting the transformer exciting current, determine (a) the voltage at the transformer primary terminals, (b) the voltage at the sending end of the feeder, and (c) the real and reactive power delivered to the sending end of the feeder.
Consider Figure 3.4. For an ideal phase-shifting transformer, the imda nce is unchanged when it is referred from one side to the other. (a) True (b) False
Three single-phase, two-winding transformers, each rated 450MVA,20kV/288.7kV, with leakage reactance Xeq=0.10perunit, are connected to form a three-phase bank. The high-voltage windings are connected in Y with a solidly grounded neutral. Draw the per-unit equivalent circuit if the low-voltage windings are connected (a) in with American standard phase shift or (b) in Y with an open neutral. Use the transformer ratings as base quantities. Winding resistances and exciting current are neglected.
For developing per-unit equivalent circuits of single-phase three-winding transformer, a common Sbase is selected for all three windings and voltage bases are selected in proportion to the rated voltage of the windings (a) True (b) False
The leakage reactance of a three-phase, 300-MVA,230Y/23-kV transformer is 0.06 per unit based on its own ratings. The Y winding has a solidly grounded neutral. Draw the per-unit equivalent circuit. Neglect the exciting admittance and assume the American Standard phase shift.
An ideal transformer has no real or reactive power loss. (a) True (b) False
In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across a transformer, the voltage base is changed in proportion to the transformer voltage ratings. (a) True (b) False
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.
A single-phase 100-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 60 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: (a) primary voltage, (b) load impedance, (c) load impedance referred to the primary, and (d) the real and reactive power supplied to the primary winding.
Consider the oneline diagram shown in Figure 3.40. The three-phase transformer bank is made up of three identical single-phase transformers, each specified by X1=0.24 (on the low-voltage side), negligible resistance and magnetizing current, and turns ratio =N2/N1=10. The transformer bank is delivering 100 MW at 0.8 p.f. lagging to a substation bus whose voltage is 230 kV. (a) Determine the primary current magnitude, primary voltage (line-to-line) magnitude, and the three-phase complex power supplied by the generator. Choose the line-to-neutral voltage at the bus, Va as the reference Account for the phase shift, and assume positive-sequence operation. (b) Find the phase shift between the primary and secondary voltages.
A three-phase transformer is rated 1000MVA,220Y/22kV. The Y-equivalent short-circuit impedance, considered equal to the leakage reactance, measured on the low-voltage side is 0.1. Compute the per-unit reactance of the transformer. In a system in which the base on the high-voltage side of the transformer is 100MVA,230kV what value of the per-unit reactance should be used to represent this transformer?