A single-phase, 250-kVA, 11-kV/415-V, 50-Hz transformer has 80 turns on the secondary. Calculate (a) the approximate values of the primary and secondary currents, (b) the approximate number of primary turns, and (c) the maximum value of the flux.

A single-phase, 250-kVA, 11-kV/415-V, 50-Hz transformer has 80 turns on the secondary. Calculate (a) the approximate values of the primary and secondary currents, (b) the approximate number of primary turns, and (c) the maximum value of the flux.

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 3.28MCQ

See similar textbooks

Related questions

Q: 1. Determine I, in the circuit shown by mesh analysis jan -jin ee

A: In this question we will find mesh current I 1.....

Q: 1. Design an Op Amp Summerto implement the ffequation: Vo = 4v1 + v2- 8v, - 6v,

Q: need to convert the drawing from a handwritten drawing to a typeface on the computer, please OPEN…

A: We have to type the given image in computer.

Q: Determine the equivalent capacitance between points a and b. 8 µF 6 µF a 6 µF 3 µF: 12 μF bo 10 µF

A: When two capacitor connected in series Ceq=( C1*C2)/(C1+C2) When capacitor connected in parallel…

Q: irections: Solve the following problems completely. Enclose your final answer in a BOX. 1. If the…

A: The solution is given below

Q: 3. A coil is connected across 220 v 60 hz mains. The current in the coil is 4 A and the power…

A: given a coil is connected across 220 V supply and frequency is 60 Hz. current through coil is 4 A…

Q: eres; 5.11 The transformers indicated below are in parallel. Transformer 1 Transformer 2 10 KWA 7.5…

Q: An automatic pressure control system measured the output as 8 psi. If error signal is 5 psi, such…

A: Given Output = 8 psi Error signal = 5 psi Set pint = ?

Q: Given Vdc =10 V in the circuit below, what is the maximum value of R that can be used for this…

Q: 2. By nodal analysis, determine the voltage V, in the circuit shown. V, 21 jsn v 42 -jio| 201

Q: Determine the values of V1, V2, and V3 for the circuit shown below. 80 WW- V1 30 V: 60 V3 30V

Q: (c) Refer to the circuit in Fig 7.2 for this part of the question: (i) Given Vs = 10 V, Ip = 15 mA,…

A: As per our company guidelines we are supposed to answer only first 3 subpart kindly repost the other…

Q: need to convert the drawing from a handwritten drawing to a typeface on the computer, please

A: The given drawing is shown below:

Q: λλ 3λ Sketch |Ed| and |Id| for d=0, '8'4' 8 Zg=Zo Kr=-1 Zo S.C

A: Distance is considered from load end

Q: For a two-port reciprocal network, the three transmission parameters are A = 4, B =7 and C= 5. What…

Q: Problem 3.3 For each of the circuits shown in Fig. P3.2 a.) identify the resistors connected in…

Q: is the amount of torque load on the motor that causes it to slip.

A: Torque in machine varies as speed changes from zerp to maximum. There are diffeeenr types of…

Q: Compute the cost per hour at 7.50 pesos per kwh of electrifying the house. If the appliances inside…

Q: Q1): Find the T.F of DE (h[n]) Engineering Analytics Transform Y[n]=2X[n] -Y[n-1] +X[n-1] -Y[n-1]+…

Q: There are two loads connected in parallel and powered from a 7200-V source. The first load is 50-kVA…

Q: Q6: chose the correct answer for the following: 1-the Nyquist sampling rate for the signal: S(t) =…

A: We need to find the Nyquist sampling rate for the above given signal.

Q: 1.1. Consider the RC circuit shown in Figure 1. Find the differential equation of the system. + R…

Q: 4. AP'N abrupt junction silicon diode has Na = 10" cm and Np= 5x1015 cm. Given 7, (in N) = 0.1µus,…

A: A PN junction refers to a combination of PN layers inside a semiconductor material.A PN abrupt…

Q: 3. Using nodal analysis, determine the current through the 2+j5 ohms impedance. 1 jsn 2

Q: Short Circuit T-L, sketch the SW Pattern for Ed sketch the Variation of Zd with distance ,d3D0,…

A: First I provided z impedance plot and then Ed plot

Q: Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent to two…

Q: Q 6\ for the class -B Power amplifier shown in fig(3), the input voltage is to be Vs = lo sina t ,…

A: According to the question, for the given class B amplifier as shown below

Q: if the resistor R1 and R2 terminals are connected across each and R3 is connected along single…

Q: 2. The rms value of the voltage in a 60 cycle is 230 V. What is the equation of the sinusoidal wave?

A: We need to find out equation of given voltage.

Q: 2. In the circuit shown, find the current through the capacitor using Kirchhoff's Law

Q: it is a type of motor oprerates on a "closed feedback" system.

A: Answer : Servo motor

Q: Det voi, A, Ra R2 iro 1 R, RA

Q: Question 1 of 40 For maximum efficiency of a transformer, the ratio of iron loss to copper loss is:…

A: This question belongs to electrical machine . It is based on the concept of efficiency of a…

Q: What is i, in the following circuit? 4.9 A 3Ω 3 32(4 )1 A

A: For the calculation of unknown current We use nodal analysis Assume branch current leaving the…

Q: 5.10 Solve all praghraphs 2.6 Solve all praghraphs 1)The binary number 10101 is equivalent to the…

A: In this question we will find binary to decimal equivalent, force , inductance etc...

Q: what voltage of battery will work in 6v solar panel? can i connect 2 pieces of 6v solar panel to…

A: The solution is provided in the following section.

Q: Which of the following is responsible for transforming an electrical signal to a physical output in…

A: The thing which is responsible for transforming an electrical signal to a physical output in the…

Q: Example23/ Two transformers (-) are designed to match a line having a Z, = 3002, ZR = 750 find…

Q: (a) What type of filter is represented by the circuit in Fig. 6? Show your steps and state all the…

Q: 6. What frequency will be developed if the speed is: а. 900 грm b. 1650 rpm

Q: What is the condition of a unipolar stepper motor if the resistance reading is always low?

A: An electrical motor is called stepper motor when the motor can be controlled on each step division…

Q: Example23/ Two transformers (4) are designed to match a line having a Z, = 3002 , Zr 750 find Stable…

Q: What is the value of current flowing through the silicon diode? 4 2 12 4.7 V 7Ω 1Ω

A: Given circuit,

Q: 3. Charging a capacitor through a resistor. The capacitor initially starts with no charge. Refer to…

A: The solution is given below

Q: The equivalent circuit parameters of a 230 V, single phase, 6 pole, 60-Hz induction motor are: R1 =…

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

Q: Determine the values of V1, V2, and V3 for the circuit shown below. 80 WW- V1 30 V2 60 V3 30V

Q: Vet lokv 어이 hint: Vo = (To 2- Va) 5 kN

Q: 3-50 KVA, transformer bank supplies the following initial loads of 40KW,0.80 lagging pf. Determine…

Q: What is the equivalent resistance between the terminals a and b? 6 N ww 6 N bọ 6 N 2 N 8 N ww ww

Q: 3. Using nodal analysis, determine the current through the 2+j5 ohms impedance. 1 jsn

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

JA single-phase, 250-kVA, 11-kV/415-V, 50-Hz transformer has 80 turns on the secondary.
Calculate (a) the approximate values of the primary and secondary currents, (b) the approximate
number of primary turns, and (c) the maximum value of the flux.

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 with 1 images

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

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
1. A 100 kVA, 3300/400 V, 50 Hz single phase transformer has 110 turns on the secondary. Determine: i. The number of turns on the primary. ii. The maximum value of the flux in the core. iii. The approximate value of primary and secondary full load currents.
The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type transformer operates with a flux of 0.05 Wb. Find (i) number of H.V. and L.V. turns per phase. (ii) e.m.f. per turn (iii) full load H.V. and L.V. phase-currents.
Q/ A 40-kVA, 3,300/240-V, 50 Hz, 1-phase transformer has 660 turns on the primary. Determine: the of secondary (a) (b) the (c) the approximate value of primary and secondary full- load currents. number turns on the maximum value of flux in the core
A 3.5 kV / 120V, 50 Hz, single phase transformer is to have an approximate e.m.f per turn of 33V and operate with a maximum flux density of 1.35T. Determine, (a) The number of primary and secondary turns. (b) The cross sectional area of the core.
1) A 12 kVA, 4400V/230V, 50 Hz single-phase transformer has 150 secondary turns. Determine (a) the primary and secondary current,(b) the number of primary turns, and (c) the maximum value of the flux.
10. In a transformer, the leakage flux of each wind- ing is proportional to the current in that winding because (a) Ohm's law applies to magnetic circuits (b) leakage paths do not saturate (c) the two windings are electrically isolated (d) mutual flux is confined to the core. 11. In a two-winding transformer, the e.m.f.per turn in secondary winding is always.........the induced e.m.f. power turn in primary. (a) equal to K times (b) equal to 1/K times (c) equal to (d) greater than. 12. In relation to a transformer, the ratio 20: 1 indi- cates that (a) there are 20 turns on primary one turn on secondary (b) secondary voltage is 1/20th of primary voltage (c) primary current is 20 times greater than the secondary current. (d) for every 20 turns on primary, there is one turn on secondary.
A 100 kVA, 3300/400 V, 50 Hz single phase transformer has 110 turns on the secondary. Determine: i.The number of turns on the primary. ii.The maximum value of the flux in the core. iii.The approximate value of primary and secondary full load currents.
1. A 40 kVA, 3300/240, 50 Hz single phase transformer has 660 turns on the primary, Determine: i. The number of turns on the secondary. ii. The maximum value of the flux in the core. iii. The approximate value of primary and secondary full load currents.
A 40 KVA , 3300/240V ,50hz , 1phase transformer has 660 turns on the primary. Determine a. The number of turns in the primary b. The maximum value of flux in the core c. The approximate value of primary and secondary full load current.
4. The portion of the flux that goes through one of the transformer coils but not the other one is called. A) Average flux B) Mutual flux D) Leakage flux C) Total flux 5. The fundamental component of the magnetization current ------- the voltage applied to the core by ------ 90°: A) Lags, 45° B) Leads, 45°. D). Leads, 90°. C) Lags, 90°. 6. The ----- are resistive heating losses in the core of the transformer. A) Hysteresis losses. B) Copper losses. C) Leakage flux losses. D) Eddy current losses. 7. The total rotational losses of an induction motor are a combination of: A) Friction losses B) Windage losses. C) Core losses. D) Stray losses. 8. Induction motors are now the preferred A) absence of brushes. choice for industrial motors due to B) Small size. C) Less control requirements. D) rugged construction. 9. For an induction motor, if the synchronous speed is 1800 r/m, and the rotor speed 180rad/sec, then the slip will be: A) 5.5 % C) 6% B) 4.5% D) 4% 10. The lower the speed of an…
BListen Tron Joss in a transformer: Cais dependent on load current. b) is a function of the resistance of the primary and the secondary windings. Cis a function of eddy currents and hysteresis effects in the transformer core. d) ) can be reduced by ¼ by reducing the current by 2.