Answered: A transformer has a turns ratio of 4:1.…

A transformer has a turns ratio of 4:1. If the secondary winding contains 30 turns, the number of turns on the primary are: Listeh a) 120 b) 1920 c) 480 O d) 30

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 3.5MCQ: For an ideal 2-winding transformer, an impedance Z2 connected across winding 2 (secondary) is...

See similar textbooks

Related questions

Q: The transformer is used to change voltage, current and frequency according to the turn ratio. O True…

A: We know that voltage and current relationships with respect to turn ratio of a transformer as…

Q: A three-winding transformer is connected to an AC voltage source as shown in the figure. The number…

A: Given- 3 winding transformer, Number of turns- N1=100,N2=50,N3=50, Currents in secondary side- 2∠30o…

Q: A Step-down transformer is given and calculate 5:1 120 V 60 Hz V2 1 k? i. Peak load and D.C. load…

A: Since it is a step down transformer therefore V2<V1 and number of turns in primary will be…

Q: The transformer has 600 primary turns and 2500 secondary turns and its primary voltage of 240V, then…

Q: DC 200 V is applied to the primary of a transformer with a conversion ratio of 1/5. From secondary…

A: The winding functions as a short circuit through the source terminals of DC when a DC voltage is…

Q: A Transformer has turns ratio of 2:15. When the secondary turns is 300, what is the primary turns?…

A: Given, For a transformer the turns ratio is N1N2=215 And the secondary turns is N2=300

Q: the circuit shown in the figure, a voltage with a peak value of 212.16 V is applied to the input of…

Q: Volt ac voltage is applied to the primary input of a transformer. A load of B ohms at the output it…

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 an ideal transformer having a 1 to 2 turns ratio, the secondary: O a) current is half the primary…

A: In case of ideal transformer, transformer used for transfer the power and stepping up and stepping…

Q: The main difference between transformer and dc motor is O The transformer has a core O The…

Q: A single phase, 500 kVA, 4400/440 V transformer has 100 turns in its secondary winding. Then find…

A: Solution: A single phase: KVA =500 KVA 4400/440 V, turns N2=100, Find: primary winding turns…

Q: An ideal transformer having 50 turns on the primary and 1250 turns on the secondary is connected to…

Q: The amount of inrush current in the primary of a transformer is limited by the........, A- amount of…

Q: The table below shows some performance parameters of a certain power transformer. Full-load voltage…

Q: The primary winding of a 50 Hz single phase transformer has 480 turns and is fed from 6400V supply.…

A: Given : A single phase transformer , f = 50 Hz With N1 = 480 turns N2 = 20 turns E1 = 6400 volts To…

Q: How do i calculate secondary current in transformer analysis

A: Given that calculate secondary current in transformer analysis

Q: A single phase 200/200 V ,55HZ transformer has an efficiency of 98% at full- load. Determine the…

A: for transformer output frequency = input frequency. and voltage regulation = no load voltage-full…

Q: A transformer with a 10/1 turns ratio has a maximum flux density of 60,000 lines/in2, when the…

A: EMF E = 4.44×frequency×Flux in the core×per phase turns. But flux = flux density× area of the core.…

Q: How do you calculate N1/N2? Ratio of primary to secondary turns of a transformer?

A: It asked how to calculate the ratio of primary to secondary turns of a transformer.

Q: Q/What is the benefit of the electrical transformer in the event of a load and in the absence of a…

A: Concept- Transformer- A transformer is a piece of electrical equipment that uses the electromagnetic…

Q: Which of the following are power losses that can occur in a practical transformer (non-ideal)?…

Q: A Transformer having 259 V in the primary with a primary current of 14 A. For a secondary Voltage of…

A: In this question , we will find transformer secondary current with given data...

Q: The equivalent resistance of the primary of a transformer having K = 6 and R1 = 0.2 ohm when…

Q: If I build a transformer and I have the following data: Primary voltage = 127V Number of turns in…

Q: The full-load copper loss of a transformer is 1600 W. At half-load, the copper loss will be O a.…

A: Given, The full load copper loss of a transformer, Pcufl=1600 W At half load, the load factor x=12…

Q: A single-phase 500 V/100 V, 50 Hz transformer has a maximum core flux density of 1.5 T and an…

Q: A Transformer having 254 V in the primary with a primary current of 10 A. For a secondary Voltage of…

A: Given : N1 = Primary Windings Turns Of The Transformer N2= Secondary Windings Turns of the…

Q: 57. A 2200/200 V transformer has a primary resistance of 2.4 2 and secondary resistance of 0.02 Q.…

Q: How does the coupling factor affect the primary and secondary voltages? For example if the turns…

Q: The open-circuit voltage of 240 V and the full load secondary voltage of 226 V, then the %…

Q: Which of the following statements is true about an ideal transformer? O It changes the magnitude of…

A: Choose the correct option Which of the following Statments is true about an ideal transform.

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

Listen
A transformer has a turns ratio of 4:1. If the secondary winding contains 30 turns,
the number of turns on the primary are:
Oa) 120
b) 1920
c) 480
Od) 30

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 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

For an ideal transformer, the efficiency is (a) 0 (b) 100 (c) 50
For an ideal 2-winding transformer, an impedance Z2 connected across winding 2 (secondary) is referred to winding 1 (primary) by multiplying Z2 by (a) The turns ratio (N1/N2) (b) The square of the turns ratio (N1/N2)2 (c) The cubed turns ratio (N1/N2)3
All values of a transformer are proportional to its __________________ ___________________.
A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding short-circuited, rated current flows when the voltage applied to the primary is 5.5 kV. The power input is read as 100 kW. Determine Req1andXeq1 in ohms referred to the high-voltage winding.
An ideal transformer has no real or reactive power loss. (a) True (b) False
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.
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.
Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage windings are connected in Y. (a) For the low-voltage side, connect the windings in , place the polarity marks, and label the terminals a, b, and c in accordance with the American standard. (b) Relabel the terminals a, b, and c such that VAN is 90 out of phase with Va for positive sequence.
How do i calculate secondary current in transformer analysis
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 ?
what is the answer for peak to peak ripple and dc output voltage? please answer in 4 decimal places thank you
It is desired to have a 4.13 mWb maximum core flux in a transformer at 110V and 50 Hz. Determine the required number of turns in the primary.