i need ans within 15 minutes my best wishes ton 6. If P, is iron loss at full load, iron loss at maximum efficiency = .7. P, changes with load current?8. If the load is capacitive the regulation of transformer is negative/positive.9. Negative regulation means the open circuit V2 is .than load voltage.10. At no load the p.f of the transformer is highvlow.11. Open and short circuit tests are performed at rated (full load).and rated (full load).

As per the guidelines of Bartley we supposed to answer first three questions only. For solution of…

Answered: 6. If P, is iron loss at full load,…

6. If P, is iron loss at full load, iron loss at maximum efficiency =. 7. P, changes with load curent? 8. If the load is capacitive the regulation of transformer is negative/positive.

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 3.31MCQ

See similar textbooks

Related questions

Q: We wish to conncct a 6 kVA, 120/240 V transformer as an autotransformer to a 120 V source to supply…

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

Q: 1. From first principles, derive the per-phase equivalent circuit of a three-phase transformer…

A: In this section are multipart questions. I have done only one part. A transformer is an electrical…

Q: Explain in detail "phase shift in star delta transform" for positive and negative sequence voltages.…

A: Types of phase sequence in unbalanced system Positive phase sequence Negative phase sequence…

Q: 3. On what particular occasion do we need to use autotransformer? Below is given the diagram of a…

A: transformer which has two electrically secluded windings called: the essential and the optional, an…

Q: 1. What is the difference between power transformer and distribution transformer in core losses and…

A: Power transformers are generally high voltage transformers which are used stepping up and down of…

Q: Along with suitable vector show, how the transformer behaves on load and no load condition

A: Transformer No-Load condition The ammeter above will indicate a small current flowing through the…

Q: When conducting no-load test on a given single-phase transformer, the following test data were…

A: turns ratio=primary voltagesecondary voltage. No load current is sum of magnetizing current+ core…

Q: 2) With the help of illustration given below, evaluate with a discussion the points mentioned in the…

Q: Identify, which component of no load current supplies hysteresis loss, in a practical transformer?…

A: In the question choose the correct option? which component of no load current supplies hysteresis…

Q: Name two types of Transformer equivalent circuit and then compare them.

A: Since both the question are not interrelated as per the guidelines of Bartley we supposed to answer…

Q: Q1// What is the purpose of conducting experiments (o.c) and (s.c) on asingl- nhase transformer?

A: TRANSFORMER: The transformer transfers power from one circuit to another circuit without a change…

Q: Discuss the relationship between the operating frequency and the transformer size? Through your…

A: Considering the EMF equation of the transformer, E=4.44×f×Bm×N×A Here, E is emf, f is frequency, Bm…

Q: A transformer having a 360 turn primary winding takes 150 watts in power and 1.4 A in current at an…

Q: how to do a transformer empty and short-circuit test, what are the most important parameters and how…

Q: Derive step by step, the electromotive force equation for a single-phase transformer.

Q: A pure transformer is used to form a step-up autotransformer with common winding of 7200 V and 1400…

Q: A transformer has 3% resistance and 6% reactance drop. The voltage regulation at full-load, 0.8…

A: Given: A transformer at full load has, Resistance drop = 3 % Rpu=3 Reactance…

Q: a. What is Vs? b. Solve for thew load impedence Z_L. c. What is the value of the load impedance when…

Q: A 3000V/4400V, single-phase transformer takes a no-load current of 0.5A and the iron loss is 200W.…

A: We will solve this question by using the no-loaad conditions of the transformer.

Q: Detailed conclusions we can come up with after conducting open circuit test on single phase…

A: According to the question we have to, Detailed conclusions we can come up with after conducting an…

Q: what is the Formulae of short test of single phase transformer and Formulae to determine efficiency…

A: If, Wsc = Full load copper losses Isc = short circuit current Vsc = short circuit voltage Equivalent…

Q: For the ideal transformer circuit in the following figure, determine i,(t).

A: Converting the given circuit in 'S' domain

Q: A 60-Hz single-phase transformer has a turns ratio of 8. The resistances 0.90 2 and 0.05 2 and the…

Q: (a) Describe the main difference between ideal transformer and practical transformer with help of…

A: In this question need to describe the main difference between ideal transformer and practical…

Q: When conducting no-load test on a given single- phase transformer, the following test data were…

A: Need to find core loss and currents for given transformer

Q: Short discuss about transformer cooling...

A: Transformer:- A device that moves electric energy from one alternating-current circuit to one other…

Q: There is no magnetic core loss in an ideal transformer Select one: O True O False

A: The explanation is as follows.

Q: Draw the scheme of a single-phase transformer with two secondary windings and mark the main symbols…

Q: the no load current I0 is in phase with the magnetic flux

Q: talk about coreless transformer

A: The brief explanation is as follows.

Q: PROBLEM A 3300V/440V, single-phase transformer takes a no-load current of 0.8A and the iron loss is…

Q: What are the advantages of Delta connection in high power transformer?

A: Transformer : It is an electrical device used to transform the voltage from one level to another.…

Q: An ideal transformer is one which has No losses and magnetic leakage Core of stainless steel and…

A: Correct option is No losses and magnetic leakage an ideal transformer haven't any losses and…

Q: a. The primary of a certain transformer takes 1 A at a power factor of 0.4 when connected across a…

A: (a) Part (i) Consider the transformer is on open-circuit. Draw the circuit diagram of an equivalent…

Q: ignored in an ideal transformer while considered in a practical 2. Which parameters are transformer…

A: According to guidelines we need to solve only the first question. according to the question we have…

Q: Write the voltage as a function of the transformer turns ratio for the following circuits respecting…

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

Q: entage resistance and percentage reactance of a transformer are 1% and 4%, respectively. What is…

A: we need to find out voltage regulation ay power factor 0.8 lagging and 0.8 leading.

Q: What is ideal transformer?

A: The transformer is the device that is used to step up or step down the voltage, and it works on the…

Q: A single-phase transformer, working at unity power factor has an efficiency of 90 % at both…

Q: A) Name two types of Transformer equivalent circuit and then compare them.

A: We are authorized to answer one question at a time so answering only 1 please upload other question…

Q: 1. Discuss in detail about the tap changing turansformers. Explain how tap: changing transformer is…

A: Tap changing transformer

Q: (B)- Explain briefly, How can be minimized the core lossés in transformer

A: Core loss in transformer : Core on the transformer exist only when the transformer is energized it…

Q: A transformer has a reactive drop of 6% and a resistive drop of 2.5%. Determine the lagging power…

A: The voltage regulation is given by the expression as shown below: In terms of the values of the…

Q: 1-Why should the supply frequency be maintained constant? 2-which side is kept open in case of open…

A: The open-circuit test, or no-load test, is one of the methods used in electrical engineering to…

Q: Define all the losses in the transformer with the diagram and then define the hysterisis loss with…

A: When the transformer is woking on the no-load condition, there are two components of the losses.…

Q: Calculate the total equivalent resistance, in terms of the primary winding, of a 10 to 1 ratio…

A: The transformer problem on basic turn ratio can be solved easily as shown below.

Q: A single phase 400 V, 50 Hz transformer has an iron loss of 5000 W at the rated condition. When…

A: Given, A single phase transformer at 400 V, 50 Hz transformer has an iron loss, Pi=5000 W (first…

Q: Explain the working principle of a transformer.

Question

i need ans within 15 minutes my best wishes ton

6. If P, is iron loss at full load, iron loss at maximum efficiency = .
7. P, changes with load current?
8. If the load is capacitive the regulation of transformer is negative/positive.
9. Negative regulation means the open circuit V2 is .than load voltage.
10. At no load the p.f of the transformer is highvlow.
11. Open and short circuit tests are performed at rated (full load).and rated (full load).

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 3

VIEW

Step by step

Solved in 3 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

For the transformer in Problem 3.10. The open-circuit test with 11.5 kV applied results in a power input of 65 kW and a current of 30 A. Compute the values for GcandBm in siemens referred to the high-voltage winding. Compute the efficiency of the transformer for a load of 10 MW at 0.8 p.f. lagging at rated voltage.
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
Consider an ideal transformer with N1=3000andN2=1000 turns. Let winding 1 be connected to a source whose voltage is e1(t)=100(1| t |)volts for 1t1ande1(t)=0 for | t |1 second. A2- farad capacitor is connected across winding 2. Sketch e1(t),e2(t),i1(t),andi2(t) versus time t.
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
An ideal transformer with N1=1000andN2=250 is connected with an impedance Z22 across winding 2. If V1=10000VandI1=530 A, determine V2,I2,Z2, and the impedance Z2, which is the value of Z2 referred to the primary side of the transformer.
Consider a source of voltage v(t)=102sin(2t)V, with an internal resistance of 1800. A transformer that can be considered as ideal is used to couple a 50 resistive load to the source. (a) Determine the transformer primary-to-secondary turns ratio required to ensure maxi mum power transfer by matching the load and source resistances. (b) Find the average power delivered to the load, assenting maximum power transfer.
An ideal transformer has no real or reactive power loss. (a) True (b) False
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
A 23/230-kV step-up transformer feeds a three-phase transmission line, which in turn supplies a 150-MVA,0.8 lagging power factor load through a step-down 230/23-kV transformer. The impedance of the line and transformers at 230kVis18+j60. Determine the tap setting for each transformer to maintain the voltage at the load at 23 kV.
Rework Problem 3.14 if the transformer is delivering rated load at rated secondary voltage and at (a) unity power factor, (b) 0.8 power factor leading. Compare the results with those of Problem 3.14. -
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.
Why is it important to reduce the moisture within a transformer to acceptable levels during transformer installation?