Electrical Machines 3.1... Problem 3SPECIAL TRANSFORMERS3.1 In a current transformer thewinding is closed.(a) Primary(b) Secondary(c) Both(d) None of the above3.2 What is the advantage of an autotransformer over a dual transformer?(a) Low power(b) Less winding materials(c) Half load(d) None of the above

in current transformer primary winding is connected in series with the linw . So, primary winding…

Answered: 3.1 In a current transformer the…

Engineering

Electrical Engineering

3.1 In a current transformer the winding is closed. (a) Primary (b) Secondary (c) Both (d) None of the above

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: 5- A single phase transformer has N = 200 turns ,N2 = 400 turns, connected to 120 V D.C source…

A: (5) Given, Number of primary turns(N1)= 200 Number of secondary turns (N2)= 400 Primary voltage…

Q: A IcA B The voltage ratio in the following transformer equals to, Inc VAN/N1 Van/N2 Van/N1 Vab/N2

A: In this question, choose the correct option What is the voltage ratio of the given transformer.

Q: а:1 120V Np = 40 30V Ns For the transformer circuit above calculate "a" and Ns a = Ns

A: Given data, Vp = 120 V. Vs = 30 V. Np = 40.

Q: _It is required to generate alternating voltage using (single transformer 2KVA),( single transformer…

A: Single transformer T1 = 2 KVA Single transformer T2 = 100 KVA

Q: A 2 KVA transformer has iron loss of 150 W and full-load copper loss of 250 W. The maximum…

A: Given a 2 kVA transformer has, Iron loss, Pi=150 W Full load Cu loss, Pcu=250 W

Q: The eddy current loss in a 2300 V, 60-Hz transformer is 280 W. What will be the eddy current loss if…

Q: The purpose of the short circuit test of a transformer is to determine iron losses of its iron core…

A: Short circuit test is used to determine the copper losses of the transformer. Open circuit test is…

Q: QUESTIONS: 1. A transformer is rated at 120V primary/23V secondary. What peak to peak secondary…

Q: 404. If the output power of a transformer is 600 W whereas the losses are 200 W, the efficiency of…

A: Given: Output power of transformer, Po=600 W. Losses = 200 W.

Q: 7- One of the reasons leads to prefer the core type transformer more than the shell type is: a) Its…

A: As per the guidelines, the first question will be answered. The leakage reactance provided by the…

Q: 4.5 A 60HZ, 120/24 V, single-phase transformer has 300 turns in its primary winding, determine the…

Q: Label the terminals of the transformers in Figure 3 according to their proper polarity markings.…

Q: In the experiment No.4, the open circuit test is performed in the single phase transformer in order…

A: Open circuit test is conducted on low voltage side of transformer at rated voltage and rated…

Q: 6) A transformer takes 100V at primary and gives 50V at secondary, its turn ratio equals ... ....…

A: Primary voltage =100V secondary voltage= 50V

Q: Question 1: What is the power observed in the energy analyzer when the rated voltage(U1) is applied…

A: Note:- According to Bartleby guidelines we are supposed to answer one question at a time kindly…

Q: 404. If the output power of a transformer is 600 W whereas the losses are 200 W, the efficiency of…

A: Given: The output power of transformer, Pout=600 W. The power Losses = 200 W.

Q: A 25 kVA, 550/220 V transformer has a rated copper loss of 350 watts. With the low voltage winding…

A: KVA rating of transformer = 25 KVA Copper losses = 350 watts Applied short circuit…

Q: In the experiment 3, the determination of efficiency of a single phase transformer under no-load…

A: during the no-load test the secondary side of the transformer is open-circuited, consequently the…

Q: 3. Calculate the voltage output by the secondary winding of a transformer if the primary voltage is…

Q: Explain any one domestic application of transformer in detail. At least 250 words The liter in Word

A: We need to explain a domestic application of a transformer.

Q: A-60 kVA Transformer at full load the copper losses 1000 W while the core losses 500 W. What is the…

A: Given a single phase transformer with, Power rating, S=60 kVA. Copper loss, Pcu=1000 W. Core loss,…

Q: 1- Why generally the voltage is applied to H.V. side? 2-Draw the exact equivalent circuit of the…

A: The solution is given below

Q: öialg äbäi A 220/1100 V transformer takes no- load current of 5A and absorbs 200 W. What is no load…

A: In this question , single phase transformer is given...No load current is given..No load losses…

Q: 31. The all-day efficiency of a transformer depends primarily on (a) its copper loss (b) the amount…

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

Q: (b) With neat diagram explain current transformer (any 4 points) and also write an applicatio…

A: the fallowing represents the circuit connections of typical current transformer

Q: How do we determine which sides of a Transformer is a primary and secondary? Explain briefly your…

Q: A 2 kVA transformer an iron loss of 150 watts and full load copp 6, loss of 250 watts. The maximum…

A: Iron loss, Pi = 150 W Copper loss, Pc = 250 W

Q: Due to opening , Which winding of current transformer will damage Answer:

A: Answer is secondary winding of ct will damage If secondary of CT Gets opened , secondary current I2…

Q: 1. The most commonly used liquid for transformer insulation is (a) mineral oil (b) askerals (c)…

A: We need to select correct option for given statement

Q: In a typical unit substation the majority of the connections to ground are made in the_. A. High-…

A: The substation is part of the electrical power system.

Q: while doing short- circuit test on the transformer, the side which is shorted *

A: While performing a short circuit test in transformer, the low voltage side of transformer is short…

Q: Q5) Choose the correct answer: 1. Three phase, Y-connected transformer is normally supplied form. a.…

A: As per the guidelines of Bartleby we supposed to answer 1st three sub part of the question . for…

Q: Transformers are extensively used in the electrical practice.explain the general construction of a…

A: A transformer is a device that is mostly used in electrical system. it is used to connect circuits…

Q: The high-voltage side of a step-up transformerhas 800 turns, and the low-voltage side has 100 turns.…

A: The transformer ratio in a transformer is the ratio the number of turns on primary side to the…

Q: What is the full load secondary current of a 3300/230 V, 46 kVA * :transformer

A: Given, Transformer rating (S) =46kVA Secondary voltage (V2) = 230V

Q: Q3-A)-Indicate whether the following statements are true or false and correct the false statements…

Q: A 2 kVA transformer an iron loss of 150 watts and full load copper loss of 250 watts. The maximum…

Q: may be used for extending the range of voltmeter. O current transformer O voltage transformer O…

A: We need to tell about method to increase the range of voltmeter .

Q: may be used for extending the range of an ammeter. current transformer O voltage transformer O…

A: To extend the range of an ammeter

Q: Quèstion 1 The shell type transformer has less leakage flux compared to the core type transformer…

A: Solution - True The shell type transformer has less lekage flux compared to core type transformer…

Q: Assertion (A): The regulation of the good transformer should be less than 3 percent. Reason (R):…

A: The percentage difference in the output voltage from no-load to full-load is the transformer's…

Q: me the circuit in figure 1(a) and calculate the reading of dc voltmeter if the io of step down…

Q: Q3-A)- Indicate whether the following statements are true or false and correct the false statements…

Q: An AC voltage of 12.0 V is applied to the primary of a transformer that has 3 times as many turns in…

Q: Calculate the load current and load voltage in the transformer circuit. (2390/710 turns), 350 ohm,…

A: Given data, N1=2390N2=710V1=28V R=350Ω

Q: device may be used for extending the range of voltmeter. O shunts O voltage transformer O series…

A: Given Device used to extending the range of voltmeter

Q: A 50 kVA 2000/200 V transformer has the resistance referred to secondary is 30 Q. The equivalent…

A: resistance referred to primary = secondary referred resistance ×primary voltagesecondary…

Q: Part 1. Identify the parts of the transformer. Use the words below. Iron Core Primary Coil Secondary…

Q: 13. A transformer has a turns ratio of 5. If a 100-2 resistor is connected across the secondary,…

A: The turns ratio given in the question is: N1N2=51 The resistance referred to primary can be…

Q: The purpose of the short circuit test of the transformer is to measure the copper losses.…

A: In this question we need to verify the given statement is true or false.

Question

Electrical Machines 3.1...

Problem 3
SPECIAL TRANSFORMERS
3.1 In a current transformer the
winding is closed.
(a) Primary
(b) Secondary
(c) Both
(d) None of the above
3.2 What is the advantage of an autotransformer over a dual transformer?
(a) Low power
(b) Less winding materials
(c) Half load
(d) None of the above

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

Mathematical Modeling of Mechanical System

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 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
The ideal transformer windings are eliminated from the per-unit equivalent circuit of a transformer. (a) True (b) False
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. -
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
An ideal transformer has no real or reactive power loss. (a) True (b) False
With the American Standard notation, in either a Y-or-Y transformer, positive- sequen quantities on the high-voltage side shall lead their corresponding quantities on the low-voltage side by 30. (a) True (b) False
For an ideal 2-winding transformer, the ampere-turns of the primary winding, N1I1 is equal to the ampere-turns of the secondary winding, N2I2 (a) True (b) False
The direct electrical connection of the windings allows transient over voltages to pass through the auto transfonner more easily, and that is an important disadvantage of the autotransformer. (a) True (b) False
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.
A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters: Resistance of the 2400-V winding: R1=0.75 Resistance of the 240-V winding: R2=0.0075 Leakage reactance of the 2400-V winding: X1=1.0 Leakage reactance of the 240-V winding: X2=0.01 Exciting admittance on the 240-V side =0.003j0.02S (a) Draw the equivalent circuit referred to the high-voltage side of the transformer. (b) Draw the equivalent circuit referred to the low-voltage side of the transformer. Show the numerical values of impedances on the equivalent circuits.
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.
In per-unit equivalent circuits of practical three-phase transformers, under balanced thr-phase operation, in which of the following connect ions would a phase-shifting transformer come up? (a) Y-Y (b) Y- (c) -