Answered: 1-Why the transformer core made from…

1-Why the transformer core made from lamination plates? 2- Why core losses remain almost constant at any load? 3- Why O.C.T. is generally performed on L.V. side (not at H.V. side)?

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 BCSQ: Why is it important to reduce the moisture within a transformer to acceptable levels during...

See similar textbooks

Related questions

Q: The maximum flux density in the core of a 3000/240-V, 50 Hz single-phase distribution transformer is…

Q: What is the material commonly used for construction of transformer core? Draw the B- H curve for…

Q: Where do an Iron loss occur? 17. What type of material is used for transformer core to reduce…

A: In this question we will write about iron loss and hysteresis loss and losses varies with load...…

Q: A certain single-phase transformer with full load copper loss and core-loss is loaded at full load.…

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: 2- At no-load the power input to transformer equal to 3- The value of resistance between primary and…

A: Note:- as per our company guidelines we are supposed to answer only first three subparts in case of…

Q: 2. What is unique about the High Voltage Test Transformer?

Q: A single phase transformer with the maximum value of flux 0.0991wb and an effective cross sectional…

Q: Explain the working principle of "Transformer" as usual Electromagnetic induction application.

A: Transformer: An item utilized in the transfer of electric energy is a transformer. AC current is…

Q: Report: 1.Compute the Core losses(no-load loss) of the Transformer. ? 2.Compute the exciting branch…

A: As per the policy , I am attempting the only first question as of my knowledge please ask the second…

Q: When rated voltage at rated frequency is applied to a single phase transformer the hysteresis and…

A: Given, Hysteresis loss, Ph1=420 W Eddy current loss, Pe1=150 W Voltage in increased by 10%, V2=1.1…

Q: 3. If a transformer is operated at rated frequency but at voltage higher than the rated value, how…

A: Given that the transformer is operating at a rated frequency but higher voltage The RMS value of…

Q: Drive the condition of maximum efficiency of single phase transformer?

A: The efficiency of single phase transformer is mainly dependent upon the following two factors. 1)…

Q: Short circuit test on a single phase transformer is performed to determine_____________ a.…

A: Need to Find the correct option

Q: In experiment :(separation of iron losses in single-phase transformer ),K1 belonging with hysteresis…

A: Given: Separation of iron losses in single phase transformer K1 belonging with the hysteresis K2 for…

Q: Draw the exact equivalent circuit diagram of the transformer ? How can the value of magnetising…

A: The equivalent diagram of a transformer when the transformer’s parameters represent or are drawn on…

Q: The magnetic core of a 100 kVA, 60 Hz core-type transformer is wound with 5268 turns on the HV side…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: What is the leakage flux in a transformer ? How can the leakage flux be minimized ?

A: We need to define the leakage flux and how can we reduce or minimise the leakage flux.

Q: A certain single-phase transformer with full-load copper loss and core loss is loaded at full load.…

Q: What is the difference in connection between a voltage transformer and a current transformer?

A: We know that the electrical instruments are not directly connected to the control apparatus or the…

Q: What is the type of core material of the transformer?

Q: 1. When a transformer is supplied at 400 V, 50 Hz, the hysteresis loss is found to be 310 W and eddy…

A: Given: At V1=400 V and f1=50 Hz Hysteresis loss, Ph1=310 W and Eddy current loss is, Pe1=260 W At…

Q: .Compute the Core losses(no-load loss) of the Transformer. ?

A: As per our policy i have attempted only one question. The basic flow chart of types of losses in…

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: Question 1 The shell type transformer has more leakage flux compared to core type transformer True…

A: The leakage flux in core type transformer more than that of shell type transformer .Because the core…

Q: A 50 MVA 230/115-kV, A-Y three-phase connected power transformer has a per unit resistance of 0.015…

A: Given rating of transformer : 50 MVA HV side 230 V assuming primary side LV side 115 V assuming…

Q: talk about coreless transformer

A: The brief explanation is as follows.

Q: What are the reasons for using transformer oil in power transformers and why are mineral oils…

A: The explanation is as follows.

Q: What are the advantages and disadvantages of back to back test on two similar single phase…

A: Solve for theory

Q: 3/The core of a 300-kVA, 15000/650 V, 50-Hz, 1-ph, core type transformer has across- section of 30…

A: In the given question we note that The core of = 300 KVA , 1500/ 650 V Cross section area is…

Q: Q1: During the separation of transformer core losses experiment: 1. Why should always keep the ratio…

Q: A transformer core is laminated in order to .

Q: The efficiency of a transformer will be maximum when ........................? (A) copper losses =…

Q: • Q1: During the separation of transformer core losses experiment: 1. Why should always keep the…

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: 3: Show the effect of the frequency on the following parameters in transformer: (a) Flux density…

A: Need to find the effect of frequency on the following parameter in transformer

Q: Why are single-phase distribution transformers made whit the low-voltage winding in two sections? A-…

A: Single-phase distribution transformers made with the low-voltage winding in two sections to minimize…

Q: What are the objectives of conducting an open circuit test on single phase transformer?

A: In transformer its important to judge its performance parameters such as efficiency, regulation etc.…

Q: When the transformer is supplied at 400 V, 50-hz the hysteresis loss is found to be 300 W and eddy…

A: Given data, The value of voltage is V1 = 400 V. The value of frequency is f1 = 50 Hz. The value of…

Q: 4. Why the efficiency of the transformer is high at half load compared to full load?

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

Q: e) What are the specifications for new insulating oils for transformer and switchgears? What are the…

A: The transformer oil has excellent electrical insulating properties and it can stand very high…

Q: List the materials used for construction of following parts (1) commutator (2) Transformer core (3)…

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: 2- Why the transformer core made from lamination plates?

A: We are authorized to answer the first question since the exact one wasn’t specified. Please submit a…

Q: Calculate the iron loss and copper losses of each transformer for full load condition in back to…

Q: 1- What is the purpose of laminating the core in a transformer?

A: As per bartleby guideline for more than one question asked only first is to be answered please…

Q: When rated voltage at rated frequency is applied to a single phase transformer, the hysteresis loss…

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

1-Why the transformer core made
from lamination plates?
2- Why core losses remain almost
constant at any load?
3- Why O.C.T. is generally performed
on L.V. side (not at H.V.
side)?

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

Why is it important to reduce the moisture within a transformer to acceptable levels during transformer installation?
2. What is the material commonly used for construction of transformer core? Draw the B - H curve for this material?
A transformer core is laminated in order to ....................................? (A) reduce hysteresis loss and eddy current loss (B) reduce only hysteresis loss (C) reduce copper loss (D) reduce all of the above losses (E) None of the above.
A transformer has primary and secondary turns of 1250 and 125 respectively. It has core cross-sectionof 36 cm2 and its rms flux density is to be limited to 1.4 T (to prevent core saturation). Whatmaximum 50 Hz voltage can be applied on the primary side and the corresponding open-circuitsecondary voltage?The core has a mean length of 150 cm and its relative permeability can be assumed to be 8000. Whatwould be the rms exciting current when the transformer’s primary winding is excited at a voltage ascalculated above? Also calculate the magnetizing susceptance as seen from primary and secondarysides.If the transformer were to be excited at 60 Hz, 1. What should be the maximum primary voltage for thecore flux density limit not to be exceeded? 2. What would be the magnetizing susceptance as seen oneach side in this case?
What is the leakage flux in a transformer ? How can the leakage flux be minimized ?
1.a. For performing dielectric-strength tests on insulating materials, two transformers are connected in aA. parallel combination.B. cascade arrangement.C. polyphase arrangement. 1.b. In large power transformers, the unequal voltage distribution caused by voltage surges in the winding isprevented by the use ofA. static shields.B. series capacitors.c. low-voltage arresters.
2. Why the core losses varying with the load?
A Single-phase transformer has a turns ratio 1: 2, and is connected to a purely resistive load as shown in the figure. The magnetizing current drawn is 1 A, and the secondary current is 1 A. If core losses and leakage reactances are neglected, the primary current is 1:2 llllllll A
When 2200 volts, 60 Hz is impressed on a certain transformer, the core loss is 240 Watts. When the frequency of the impressed voltage is changed to 25 Hz and the voltage is reduced to maintain the same flux density as before, the core loss falls to 75 Watts. Neglect impedance drop. What is the hysteresis loss at 60 Hz?
A 800/160V, 55 HZ, 1-phase transformer with cross sectional area of the core is 26 cm? and maximum flux density is 1.2 wb/m?. The number of turns required on the LT side will be
talk about coreless transformer
The voltage per winding of the 220V/12V, 60 Hz single phase core transformer is 2V. If the maximum flux density in the core is 1.5 T, which of the following is the cross-sectional area of the core in cm2 ?