Answered: connection of transformer is used to…

connection of transformer is used to convert three phase to single phase. In a DC machine, e.m.f causes current flow in the circuit, only when it is

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 3.2MCQ: For an ideal transformer, the efficiency is (a) 0 (b) 100 (c) 50

See similar textbooks

Related questions

Q: A 200/100 V, 50 Hz transformer is to be excited at 40 Hz from the 100 V side. For the exciting…

A: Excitation current = E/X

Q: In a single phase transformer, what test to be conducted to measure the iron losses directly .…

A: In the question Draw the single phase diagram to measure iron losses. Which method is used to…

Q: Answer by true or false * True False while conducting short- circuit on transformer the low voltage…

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

Q: Determine

Q: Berry type transformer has has more than two magnetic circuits. Select one: O True False

Q: A 25 KVA single phase transformer has turns ratio of 100/29. If low voltage side is connected to 250…

A: Solution: Given data; KVA =25 KVA, single phase transformer ; turns ratio=N1N2…

Q: b) Sketch four (4) types of possible connections for a three-phase transformer bank.

A: Three-phase transformer bank is in the transmission line and is studied in the power electrical…

Q: A 3000/200V ,50hz. , single phase transformer has a cross sectional area of 150 cm2 for the core. If…

Q: A load impedance of 52 ohms is connected to the secondary winding of the transformer with 208 volts.…

A: Using ohms law I=V/R Given voltage is 208 volts And impedance of 52 ohms

Q: 5. How many turns must the primary windings of 220/110 v, 60 Hz ideal transformer have if the core…

Q: 1. What happen when the two transformers are operated in parallel having un equal turn's ratio. 2.…

A: 1: If two transformers with different transformation ratios (un-equal turn's ratio) are connected in…

Q: Q1// What is the purpose of conducting (O experiments (o.c) and (s.c) on asingle phase transformer?

A: A transformer is an electrical machine which is used in AC circuit to either step up or step down…

Q: In a wye connected transformer E L = E P. True or false

A: In a wye connected transformer E L = E P. True or false

Q: In a transformer the no-load voltage is 250 V. Calculate the percentage of voltage regulation if the…

A: According to the question we have to find the value of voltage regulation and the terminal voltage…

Q: The line to ground voltage on the high voltage side of a step-up transformer are 100 kV, 33 kV, 38…

A: Given that A Phase voltage is 100 kV. B Phase voltage is 33 kV. C Phase voltage is 38 kV. The…

Q: Two 100-kW, single-phase transformers are connected in parallel both on the primary and secondary.…

A: In this question we need to find a load share by transformer

Q: 11) Which phenomenon is used in transformer to change the values of alternating voltages and…

A: Given that Which phenomenon is used in transformer to change the values of alternating voltages and…

Q: In transformer, which is always working with its secondary short circuited.

A: In the question, fill the blank In......... Transformer, which is always working with it's…

Q: The low voltage winding of a 400/230 V single phase, 50 Hz transformer is to be connected to a 25…

Q: Explain conditions of 3-phase transformer to be connected in parallel.

Q: How is the EMF of a three phase transformer

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

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

A: A transformer is an electrical machine which is used in AC circuit to either step up or step down…

Q: Two transformers are to be operated in parallel such that they share load in proportion to their KVA…

A: Given: Two transformers are to be operated in parallel with share load to their kVA ratings. Rating…

Q: A single phase 50 cps transformer is required to have a no load voltage ratio of 3300/440 volts. The…

Q: A 50 kVA transformar has a core loss of 500 W and full load core loss of 900 W. The load at which…

Q: A three-phase 50 Hz transformer core has a cross-section of 400 cm?. If the flux density be limited…

A: A 3-ph, transformer has, Core cross-sectinal area(A)= 400 square cm Flux density (B)= 1.2 Wb/m2…

Q: A 35KVA, transformer has 50 Hz frequency input with voltage values given as 300/220V, with primary…

A: It is given that: kVA=35 kVAf=50 HzV1V2=300220N1=550

Q: In no-load phasor diagram of the transformer, the magnetizing current is to primary voltage.

Q: How do i calculate secondary current in transformer analysis

A: Given that calculate secondary current in transformer analysis

Q: Primary of Current Transformer is having large number of turns. Select one: O True O False

A: The essential twisting of the current transformer comprises of at least one turns having a hefty…

Q: the secondary electrical current for the transformer shown in Figure with resultant flux in the core…

Q: If two transformers are operated in parallel with voltage ratio of transformer A slightly greater…

Q: In a transformer the core loss component is 90 degrees with the flux Select one: True False

A: The wires wound around the core of transformer produces flux. MMF is given by NI, where N is the…

Q: In a single-phase transformer induced electromotive force per turn on secondary winding is Select…

A: Let E2 be the induced electro magnetic force in secondary winding and N2 be the number of turns in…

Q: At 50Hz operation a single phase transformer has eddy current loss of 100 W, Its eddy current loss…

Q: In a 1-phase transformer, if the no load secondary terminal voltage is 227 V and the full load…

A: Although formula for voltage regulation is given by %VR=Vno load-Vfull loadVno load×100% Given…

Q: a single phase transformer working at unity power factor has an efficiency of 90% at both half and…

Q: In transformer , which is always working with its secondary short circuited.

A: In this question , we have to find out transformer in which secondary short circuited...

Q: In load test on single phase transformer, the secondary voltage decreases with increase in load.…

A: In the load test of the single phase transformer. This is based on the true false. Secondary…

Q: 6. In a transformer the core loss is found to be 60W at 30Hz and 90W at 40Hz, measured at the same…

Q: In a single phase transformer core losses can be found by open circuit test Select one: O True O…

A: In this question , we will find which test is for core losses...

Q: parallel different KVA

A: Transformer- A device that transfers the electrical energy between two electrical circuits which are…

Q: Which of following is a variable loss in a transformer? O Constant loss O Eddy current Hysteresis…

A: In transformer there is 2 type of loss present. 1. Contact loss 2. Variable loss.

Q: In single phase transformer, if the secondary turns Nz is greater than the primary turns N1, then…

Q: Which of the following is the correct equation for calculating the rated current for a single-phase…

Q: Three single phase 11000/220 V transformers are connected to form 3-phase transformer bank. High…

A: Given- V1=11,0003 V (star connection), V2=220 V (delta connection), To Find- Voltage ratings and…

Q: 6-Writ the procedure of no load test of Single phase transformer and draw the connection diagram of…

Q: Q/ why the Rc is in parallel with Xm for equivalent circuit of transformer ?

Q: Draw the phasor diagram of a transformer with load considering all kind of voltage drop in the…

A: Below is the phasor diagram of a transformer on Inductive Load The resistance and the leakage…

Question

Please, I want the answers in a clear line and please answer quickly

connection of transformer is used to convert three phase to single phase.
In a DC machine, e.m.f causes current flow in the circuit, only when it is

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 Answer 1

VIEW

Step 2 Answer 2

VIEW

Step by step

Solved in 2 steps with 1 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

The main difference between transformer and dc motor is The transformer has a core The transformer has two windings The transformer is a static device The transformer has a magnetic circuit
A three-winding transformer is connected to an AC voltage source as shown in the figure. The number of turns is as follows: N₁ = 100, N₂ = 50, N3 = 50. If the magnetizing current is neglected, and the currents in two windings on secondary side are 2230° and 22150°, then what is the value of the primary current in Ampere? I 0000000000- N₁ № ₂ Z 00000 00000 Z N3 H I₁₂ I₁₂₁ ¹3
11) Which phenomenon is used in transformer to change the values of alternating voltages and currents? a. Lenz's law b. Ferromagnetic core c. Faraday's Law d. Mutual induction
A) In any transformer's core, we have two types of losses, what are they? B) Explain why the core has losses.
Which of the following are power losses that can occur in a practical transformer (non-ideal)? copper loss O loss due to eddy currents V hysteresis loss O voltage drop due to coil material
The path of a magnetic flux in a transformer should have O High resistance O Low reluctance O Low resistance O High reluctance
How do i calculate secondary current in transformer analysis
opper losses Which of following is a variable loss in a transformer? O Constant loss O Eddy current Hysteresis losses O Copper loss
In this Center tapped transformer Find the peak voltage of V1 and V2, RMS voltage of V1 and V2, and Peak to peak voltage of V1 and V2
What is the transformer's ratio
In the circuit in Figure 2, the capacitor connected to the a-b terminals of the transformer anda circuit consisting of resistance is defined as a load circuit. a)Find the average power spent by the load circuit? b) How much of the average power calculated in a) by the resistance in the load circuit and how muchspent by the capacitor? Comment on the results obtained?
A single phase transformer is required to step down the voltage from 1100 V to 230 V at 50 Hz. The maximum value of the flux in the core is 0.20 Wb. Determine the number of turns in the winding in both sides.