i need the answer quickly Q5-A 800 KVA transformer During the day it is loaded as follows:For 4 hours500 KW at 0.8 p.flagFor 4 hours700 KW at 0.9 p.f lagFor 4 hours300 KW at 0.95 p.flagIf the iron loss equal 7.5Kw and copper loss equal 14.2 KW, determine its all dayefficiency.ANS. 95.86%

Answered: Image /qna-images/answer/b704bb2a-e6e9-4ba8-bb7e-1189e4f85453.jpg

QS-A 800 KVA transformer During the day it is loaded as follows: 500 KW at 0.8 p.f lag For 4 hours For 4 hours 700 KW at 0.9 p.flag For 4 hours 300 KW at 0.95 p.flag If the iron loss equal 7.5Kw and copper loss equal 14.2 KW, determine its all day efficiency. ANS. 95.86%

QS-A 800 KVA transformer During the day it is loaded as follows: 500 KW at 0.8 p.f lag For 4 hours For 4 hours 700 KW at 0.9 p.flag For 4 hours 300 KW at 0.95 p.flag If the iron loss equal 7.5Kw and copper loss equal 14.2 KW, determine its all day efficiency. ANS. 95.86%

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 3.57P: A two-winding single-phase transformer rated 60kVA,240/1200V,60Hz, has an efficiency of 0.96 when...

See similar textbooks

Related questions

Q: An impedance draws a current i = 10 cos (wt – 30°) Amp from a voltage v = 220 sin (wt + 30°) Volts.…

Q: 1. True or False? The primary purpose of section views is to help feature exterior detail without…

Q: the combination network of Fig. 7.97, determine: VCE- 20 V VDS. ' 2.2 ΚΩ 40 ΚΩ D + VB.VG 10 ΚΩ IB ť…

Q: 13. The main dimensions of electric machines (inner diameter of the stator D, length of the core and…

A: In this question we need to choose a correct option

Q: (b) A medical technology company is designing a new portable defibrillator for reviving patients…

A: In this question we need to find a value of capacitor and dielectric constant

Q: current element currying 20 mA in a az direction lies along the entire z axis. Find H in rectangular…

Q: The Excess-3 code of 6 is O a. 0110 O b. 0111 O C. O d. 1001 None of the above

A: In this question, We need to choose the correct options What is excess 3 code of the 6 ?

Q: // For the figure below, obtain the actual value of Io. 14 6Ω www 2 V 1, 2Ω www I = 15 A 7Ω 1 η Τ 4Ω…

A: We need to find out current for given circuit

Q: it produces an output four times the peak voltage O Voltage Tripler O Voltage Quadrupler O Full-Wave…

Q: (b) Design a non-inverting amplifier to provide a closed loop gain of 60. Draw the schematic and…

A: Note: Please note that both the sub parts are not interlinked to each other hence according to the…

Q: Using only one ideal operational amplifier, 2 resistors, and a 3.3 nF capacitor, design apo ed obeto…

Q: 1. Fill-in the blanks with the correct answer or chose the correct answer. the blue wire 1-3. Given…

A: Fill-in the blanks with the correct answer or chose the correct answer.

Q: choose the correct answer

A: In this question, We need to choose the correct options What is average value of the 240V- electric…

Q: 1. A PT100 RTD has a positive temperature coefficient (a) of 0.00392 /°C. It is being used to…

A: An liquid level transmitter are devices used for measuring the liquid levels in the storage tanks.…

Q: Q21. What is the drive output frequency when switch S1 only is closed and the analog inputs are…

A: According to the question, for the given wiring schematic as shown below We need to find the…

Q: capacitor in series with a 200 ohms resistor draws a current of 0.3 ampere from 120 volts, 60 hz…

A: We need to find out the value of capacitor for the given circuit

Q: 14. With an increase of number of turns of the stator winding of the induction motor * air gap…

A: Induction motor:- It is a type of AC motor. In induction motor squirrel cage or the wound type rotor…

Q: 'f we have a point charge for which Q=4* 10-16 and m- 10 10-26 kg is moving in Combined fields E=…

A: Given,Point charge, Q=4×10-16 CMass, m=10×10-26 kgElectric field, E=100ax-200ay+300az V/mMagnetic…

Q: A2 Answer ALL parts (a)-(d) (a) Explain the difference between an ideal current source and a real…

Q: 4Ω 202 402 692 202 Ω '8Ω

Q: A point charge of 10C moves with a uniform velocity of ù = (3x − 42) m/s in an electromagnetic field…

A: Given,Point charge, q=10CUniform velocity, u→=3x^-4z^m/sElectric field, E→=1x^-3y^+8z^ V/mMagnetic…

Q: Q1. Express the sequence: x(n) = 1 2 3 0 n=0 n=1 n=2 otherwise

Q: Questions ??-??. Consider an ideal RLC series circuit shown in the figure below. The current in the…

Q: 7- Iron loss in the rotor of a 3-phase induction motor (a) Very low frequency of emf induced in the…

A: In this question, We need to choose the correct options Iron losses in the rotor of the 3 phase…

Q: 3. Given the circuit below, derive the equation for Vout. 100k 1M Vin 100k + U1 Vout 10k

Q: Draw the circuit diagram of an op-amp voltage follower. b) What value is its voltage gain? c)…

A: In this question we will write about voltage follower...

Q: Provide answers for the following: a) In Karnaugh Maps, what distinguishes cells that are…

A: Karnaugh maps are used in digital circuits in order to simplify the Boolean expression which reduces…

Q: 6 For the state machine shown in Figure Q6 do the following: (a) Is this a Moore Machine or a Mealy…

A: As per our guidelines we are supposed to be answer the first three subparts only. Kindly repost the…

Q: Q1\ A. what's the Mechanics? B. Evaluate each of the following and express with SI units having an…

A: A. Mechanics is the branch of Physics responsible for the study of motion when under force or…

Q: The resistance and resistivity of a wire of 0.35 mm diameter and 200 cm length was tested. The…

A: Given data, Length of wire l = 0.35 mm = 0.35×10-3 m Diameter d=200 cm = 0.2 m Voltage V = 3 V…

Q: Q4: Find the current in the resistor (30) by using thevnin theorem? 8 ww 24 V 5 V D (a) www B

A: Given An electrical circuit,we need to use Thevenins theorem to find the current through the 3 ohm…

Q: For a series RLC Circuit the inductor is variable. Source voltage is 200√2 sin100nt. Maximum current…

Q: A 10 kW, 250 V, dc shunt motor with an armature resistance of 0.8 Ω and a field resistance of 275 Ω…

A: DC shunt motor is known as a wound DC motor it is a self excited DC motor the field winding is…

Q: 3. A 4-pole, single-phase, squirrel-cage induction motor operates from a 115 V, 50 Hz supply The…

Q: Which phenomenon occurs at point P? Crests - Troughs

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: 1. Consider the LTI system with impulse response h[n] = u[n] (i) Can this system be implemented…

Q: Q/ For the circuit below, VCC=20 Volt, Bd.c.=83, RC=4K ohm, RS= 3K ohm, R1=500K ohm. Find : loss-8…

Q: Q1: Answer the following sentences with (True) or (False) then correct the false sentences: V 2- The…

A: --> The above statement is False. --> The correct statement is " The side lobes appear in a…

Q: copper coil, when connected to a 30-volt supply, initially takes a current of 3 A and has a mean…

Q: Choose the correct answer.

Q: 2. How two identical single phase transformers each of rating 5kVA, 200V/100V, 50Hz be used to step…

A: Two transformer can be used for three phase transformation , this arrangement is called V-V…

Q: A DC motor has forward transfer function as shown in figure 2(a) is configured in a unity feedback.…

A: The Given Transfer function ass+b To Determine the values of k and kf to reduce the percent…

Q: Answer ALL parts (8) Consider the circuit in Figure A4. (a) Explain its operation with the aid of…

A: Given the circuit, as shown below: a) We need to explain its operation with the aid of diagrams.b)…

Q: Q1: Answer the following sentences with (True) or (False) then correct the false sentences: 1- When…

A: The given statement is: 1. When the HPBW increase, the directivity of the antenna increases.

Q: Do we need to have brushes in a squirrel-cage rotor type induction motor? Explain briefly your…

A: Stator and Rotor: They both are a part of Electrical motor. Major Difference between stator and…

Q: QI what are the ideal characteristics of op-AMP. for the op-AMP circuit shown prove that the voltage…

A: Given We need to list out ideal opamp characteristics. And for the given opamp circuit we need to…

Q: What are the power quality issues in the interconnected system of solar PV and wind system

A: Given Enumerate the power quality issues in the interconnected system of solar PV and wind. Please…

Q: Enlist the power quality issues for renewable energy integration

A: Renewable energy is also called green energy because it is generated from Energy resources which are…

Q: Calculate the gain (A = //V) without feedback for the circuit below. Show the details of your work.…

A: In the given question they have mentioned a common emitter amplifier with emitter resistance RE.…

Q: Q1: Answer the following sentences with (True) or (False) then correct the false sentences: 1- WL…

A: Answer: False

Question

i need the answer quickly

Q5-A 800 KVA transformer During the day it is loaded as follows:
For 4 hours
500 KW at 0.8 p.flag
For 4 hours
700 KW at 0.9 p.f lag
For 4 hours
300 KW at 0.95 p.flag
If the iron loss equal 7.5Kw and copper loss equal 14.2 KW, determine its all day
efficiency.
ANS. 95.86%

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 2 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

A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and L=40mH. (a) Determine the power factor of the circuit and state whether it is lagging or leading. (b) Determine the real and reactive power absorbed by the load. (c) Calculate the peak magnetic energy Wint stored in the inductor by using the expression Wint=L(Irms)2 and check whether the reactive power Q=Wint is satisfied. (Note: The instantaneous magnetic energy storage fluctuates between zero and the peak energy. This energy must be sent twice each cycle to the load from the source by means of reactive power flows.)
An infinite bus, which is a constant voltage source, is connected to the primary of the three-winding transformer of Problem 3.53. A 7.5-MVA,13.2-kV synchronous motor with a sub transient reactance of 0.2 per unit is connected to the transformer secondary. A5-MW,2.3-kV three-phase resistive load is connected to the tertiary Choosing a base of 66 kV and 15 MVA in the primary, draw the impedance diagram of the system showing per-unit impedances. Neglect transformer exciting current, phase shifts, and all resistances except the resistive load.
In a 160 KVA. 2000/200 V power transformer, the iron and full load copper losses are 80 W and 350 W respectively. Calculate the efficiency at 25 % load and 0.75 power factor.
Q25. The function of the iron core in the transformer is
A 15 kVa closet transformer located inside a building is used to step down the voltage for the building. It is connected to a primary 9800 V AC power source. The ratio of the number of primary windings to the number of secondary windings on the transformer is 60 to 15. a. What is the voltage and amount of current provided to the building? c. If the building consumes 3200W of power, what is its power factor? d. What is the phase angle of the secondary power source in the building?
A Step-down transformer at Van Eck power station in Windhoek operates at V=10 kV on the primary side during wintertime. The voltage drawn from the secondary side of the transformer is V = 118 Volts. What is the current in Amps, on the secondary side of the transformer if the average rate of energy consumption demand is at 112.3 kW?
A 200 – kVA transformer with impedance of 5 percent and the power factor of the load is 85percent. The primary voltage is 6,000 volts while the copper loss is 5 kW. Find the percentageregulation.
15. Find the efficiency of a 150 kVA transformer at 25 % full load at 0.8 p.f. lag if the copper loss at full load is 1600 W and the iron loss is 1400 W. Ignore the effects of temperature rise and magnetizing current. Round your answer to two decimal places. Write your answer on the space provided.
In the Open-circuit test of the transformer (OC TEST), wattmeter measures 2 kW, in the short-circuit test of the transformer (SC TEST) wattmeter measures 200kW. Find the core loss of the transformer?
A 246 kVA transformer has a primary winding resistance of 0.55 and a secondary winding resistance of 0.002 Q. The iron loss is 3 kW and the primary and secondary voltages are 4 kV and 245 V respectively. If the power factor of the load is 0.85,then determine the efficiency of the transformer on 25 % load.
A 2000-kVA, 6,600/400-V, 3-phase transformer is delta-connected on the high voltage side and star-connected on the low-voltage side. Determine its % resistance and % reactance drops, % efficiency and % regulation on full load 0.8 p.f. leading given the following data : S.C. test; H.V. data : 400 V, 175 A and 17 kW O.C. test; L.V. data: 400 V, 150 A and 15 kW
three transformers delivers a 1.5MVA 0.866 power factor load connected Y on the primary side and delta on the secondary side step the voltage up from 600 to 17320 volts calculate: a the ratio of transformation of each transformer b the kilovolt ampere and kilowatt load on each transformer c the current delivered to the load d the current in the primary line wires e the current in each secondary transformer windings f the current in each primary transformer winding