Primary winding of transformer is made-up of __________________________ material. a. insulated copper conductor b. Cold Rolled Grain Oriented (CRGO) conductor c. Cold Rolled Grain Oriented (CRGO) Silicon Steel d. insulated CRGO conducto

Primary winding of transformer is made-up of __________________________ material. a. insulated copper conductor b. Cold Rolled Grain Oriented (CRGO) conductor c. Cold Rolled Grain Oriented (CRGO) Silicon Steel d. insulated CRGO conducto

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 3.15P: Rework Problem 3.14 if the transformer is delivering rated load at rated secondary voltage and at...

See similar textbooks

Related questions

Q: (b) Discuss about the tap changing transformer and synchronous condenser methods of voltage control…

Q: A typical single-phase transformer has a certain value of voltage regulation when connected to the…

Q: Why it's improctical carry out actual load test on large rating transformer

A: When a huge transformer is fully loaded, it can carry a lot of current and voltage. As a result,…

Q: Clear print on the keyboard and correct or dislike In regards to the model of a real transformer,…

A: Transformer is an ac static electrical device that transfers electrical energy from one electrical…

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: From the topic of insulation resistance testing of a transformer, what specific precaution needs to…

A: This question is from "Power System And Protection". Under which we are going to study about…

Q: Indicate the relevant changes in transformer performance (output voltage, losses, regulation, no…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: If required, what type of diagram must indicate the calculated load, demand factors, conductor type…

Q: What will be the corresponding CT connection configuration for differential protection scheme, if…

A: Given To determine CT connection configuration for differential scheme, if transformer is connected…

Q: What is the difference between two transformer with same voltage level and same rating current, but…

A: The transformer is a static electrical device that changes the voltage or current from one level to…

Q: A15 The rating of transformer is stated in terms of

A: In this question , we will writr rating of transformer..

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

A: Transformer is a static electrical device which transfers power from one circuit to another circuit…

Q: Answer the following questions 1. What physical and construction characteristics impact the value of…

A: Since you have asked multiple questions, we will solve the first question for you. If youwant any…

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

Q: What are the objectives of implementing a short circuit test on a single phase transformer?

A: Given What are the objectives of implementing a short circuit test on a single phase transformer

Q: Discuss the potential transformer with neat schematic diagram.

Q: Construct the Equivalent Circuits of Transformer for distribution substation referred to the primary…

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

A: Need to find the excitation branch element Rc on the low voltage side solve as below

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: Assume a single phase transformer with primary and secondary winding. Explain what would happen if a…

A: Transformer is a static device which is used to step up/down the voltage or current level without…

Q: The per-unit system calculations method eliminates the need for explicit voltage-level conversions…

A: in the per-unit system each voltage is represented in terms of its base value

Q: difference between single phase and three phase transformer?

A: The transformers in an electrical system are used to convert the high potential to low potential or…

Q: transformer the core loss is 100 watt at 40 Hz and 72 watt at 37 Hz, then eddy current and…

A: In this question , we have to find out Eddy current losses and hysteresis losses...

Q: Power transformer divided into two categories which are dry type and oil-immersed transformer, with…

A: You have asked multiple independent questions. We are authorized to answer one question at a time.…

Q: 1. Explain how a fuse saving scheme is performed using a recloser. ii. What is a sectionalizer and…

A: Note: Since you have not specified any question to be answered, as per our honor code, we are…

Q: The figure below shows the equivalent circuit of a nominal 240V-120V, 1000 VA, single-phase…

Q: For short circuit test on 400v/1200v transformer which voltage side will be shorted?

A: The explanation is as follows.

Q: Explain the operation in detail with diagram for transformer used for welding Please don’t…

A: 1. Welding transformer is a step down transformer. 2. Core of primary winding is thin and has more…

Q: Why does the power factor of a load affect the voltage regulation of a transformer? In sentence form

A: Voltage regulation of transformer is dependent on no load voltage and full load voltage of…

Q: 11-Which of the following could be the most accurate description of the device seen in the picture?…

A: Given image and we need to find correct option

Q: A typical single-phase transformer has a certain value of voltage regulation when connected to the…

A: The problem is related to voltage regulation of transformer. The voltage regulation is positive for…

Q: During the load test of single-phase transformer, when the secondary terminal voltage increases, the…

Q: In which of the following transformer, the secondary winding is directly connected to primary…

A: Need to find the correct option for the given statement

Q: Find the elements of the equivalent circuit relative to the secondary of a single-phase transformer.…

A: Given: The no-load voltages in the primary and secondary circuits are 200 volts and 400 volts,…

Q: A 50-kVA 13.8-kV/208-V (rms, line-line) ∆−Ythree-phase distribution transformer has a per-unit…

A: Dear student as per our guidelines we are supposed to solve only one question in which it should…

Q: 10. A 6,900/230-volt transformer is provided with 24, 5, 7%, and 10 per cent taps on the primary…

A: The transformer has a voltage rating of 6900/230 V Different taps are provided on the primary side…

Q: What is the Influence of the manner the core coil assembly of the transformer on calculations of…

Q: 1. What is an inter turn insulation of the transformer winding? 2. What is the common reason for…

A: Note as there are several questions and we are asked to solve one question at a time. So I am…

Q: Indicate the relevant changes in transformer performance (output voltage, losses, regulation, no…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: is Insulation Resistance testing of a Transformer healthy? Justify

A: Introduction Electrical isolation is necessary to protect circuits, equipment, and people from…

Q: A 60-MVA, 280-kV/500-kV, single-phase transformer has the series impedance referred primary side is…

A: Base impedance=Vbase2MVAbase. per unit impedance=impedance in ohmsbase impedance.

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: A 50-MVA, 190-kV/500-kV, single-phase transformer has the series impedance referred primary side is…

A: Given single phase transformer with50 MVA,190-kv/500-kvSeries impedance referred to primary side…

Q: 1. Which do you think is better , using three(3) single phase transformer interconnected to form a…

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

15. Primary winding of transformer is made-up of __________________________ material. a. insulated copper conductor b. Cold Rolled Grain Oriented (CRGO) conductor c. Cold Rolled Grain Oriented (CRGO) Silicon Steel d. insulated CRGO conductor

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

What should be the focus of transformer preventive maintenance efforts?
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 single-phase l0-kVA,2300/230-volt,60-Hz two-winding distribution transformer is connected as an autotransformer to step up the voltage from 2300 to 2530 volts (a) Draw a schematic diagram of this arrangement, showing all voltages and currents when delivering full load at rated voltage. (b) Find the permissible kVA rating of the autotransformer if the winding currents and voltages are not to exceed the rated values as a two-winding transformer. How much of this kVA rating is transformed by magnetic induction? (C) The following data are obtained from tests carried out on the transformer when it is connected as a two-winding transformer: Open-circuit test with the low-voltage terminals excited: Applied voltage =230V, input current =0.45A, input power =70W. Short-circuit test with the high-voltage terminals excited: Applied voltage =120, input current =4.5A, input power =240W. Based on the data, compute the efficiency of the autotransformer corresponding to full load, rated voltage, and 0.8 power factor lagging. Comment on why the efficiency is higher as an autotransformer than as a two-winding transformer.
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-volt,60-Hz distribution transformer has a 1-ohm equivalent leakage reactance and a 5000-ohm magnetizing reactance referred to the high-voltage side. If rated voltage is applied to the high-voltage winding, calculate the open-circuit secondary voltage. Neglect I2RandGc2V losses. Assume equal series leakage reactances for the primary and the referred secondary.
The ratings of a three-phase, three-winding transformer are Primary: Y connected, 66kV,15MVA Secondary: Y connected, 13.2kV,10MVA Tertiary: connected, 2.3kV,5MVA Neglecting resistances and exciting current, the leakage reactances are: XPS=0.09 per unit on a 15-MVA,66-kV base XPT=0.08 per unit on a 15-MVA,66-kV base XST=0.05 per unit on a 10-MVA,13.2-kV base Determine the per-unit reactances of the per-phase equivalent circuit using a base of 15 MVA and 66 kV for the primary.
Consider the adopted per-unit system for the transformers. Specify true or false for each of the following statements: (a) For the entire power system of concern, the value of Sbase is not the same. (b) The ratio of the voltage bases on either side of a transformer is selected to be the same as the ratio of the transformer voltage ratings. (c) Per-unit impedance remains unchanged when referred from one side of a transformer to the other.
Consider a bank of this single-phase two-winding transformers whose high-voltage terminals are connected to a three-phase, 13.8-kV feeder. The low-voltage terminals are connected to a three-phase substation load rated 2.0 MVA and 2.5 kV. Determine the required voltage, current, and MVA ratings of both windings of each transformer, when the high-voltage/low- voltage windings are connected (a) Y-, (b) -Y, (c) Y-Y, and (d) -.
Why is it important to reduce the moisture within a transformer to acceptable levels during transformer installation?
Referring to the transformer connection in Question 9, if the center tap of the primary is connected to a neutral conductor on the incoming power, will it permit the secondary voltages to be balanced when single-phase loads are added?
Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit leakage reactance, are connected as a three-phase extended autotransformer bank, as shown in Figure 3.36(c). The low-voltage winding has a 110 volt rating. (a) Draw the positive-sequence phasor diagram and show that the high-voltage winding has a 479.5 volt rating. (b) A three-phase load connected to the low-voltage terminals absorbs 6 kW at 110 volts and at 0.8 power factor lagging. Draw the per-unit impedance diagram and calculate the voltage and current at the high-voltage terminals. Assume positive-sequence operation.
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.