Answered: transformer takes a current of 1A when…

transformer takes a current of 1A when its primary is connected to a 200 volt, 50 Hz supply, the secondary being on open circuit. If the power absorbed is 100 watts, determine (a)

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter4: Symbols

Section: Chapter Questions

Problem 7SQ: The symbol shown is a(n) a. iron core transformer. b. auto transformer. c. current transformer. d....

See similar textbooks

Related questions

Q: 120 V 60 Hz 0.25 A HH" I C₁ 470 μF www.1 RL 1 ΚΩ

A: Given Circuit: To determine: The transformer has a turns ratio of 9.45, what is the dc load…

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: When a transformer takes a current of 0.8 A and its primary is connected to a 235 V, 50 Hz supply,…

Q: The circuit for a 20-KVA, 220/3960 V, 50-Hz transformer is shown in Figure (1). The open- circuit…

Q: 1. In a transformer, which options are correct: A. Works on Faraday’ law and Ampere’s law B. DC…

Q: 2-An ideal transformer consists of a primary winding (100 turn) and a secondary winding (1000 turn).…

A: Given here an ideal transformer primary winding turns and secondary winding turns and secondary…

Q: Solve the problem and illustrate the circuit. Answers must be in 3 decimal places A 480/220 V, 60-hz…

A: In this question we need to find the cross-sectional area in the core in cm and the primary and…

Q: What is the function of the DC motor armature Choose one answer: a. Performs the function of force-…

A: According to guidelines we need to solve only the first question. According to the question we have…

Q: A 100/S00 V. 1 KVA, 50 Hz transformer was put through open and short-circuit tests to find its…

Q: For problem 1-3, consider Figure 1. 2:1 120 Vrms ooooo rellle D. 84.9 V 2. The dc voltage at the…

A: We need to analyse the given half wave rectifier circuit

Q: 4. In a transformer, which options are correct: A. Works on Faraday' law and Ampere's law B. DC…

A: Transformer is a static device the transfer electrical energy from one electrical circuit to another…

Q: The open-circuit voltage of 240V and the full load secondary voltage of 220 V, then the % regulation…

A: The open-circuit voltage of 240V the full load secondary voltage of 220 V, then the % regulation of…

Q: A 200-kVA, 3-phase, 50-Hz transformer has a voltage ratio (line voltages) of 33/11-kV and is…

A: Given:Rating of transformer=200kVAThe transformer is delta/star connectedvoltages are given as…

Q: 1. Explain why transformer saturation occurs at a lower voltage value when the frequency of the ac…

Q: AC power of 100 volts and 1 ampere enters a transformer with 2 coils and exits the transformer with…

Q: Example 2-5. A 15-kVA, 2300/230-V transformer is to be tested to determine it excitation branch…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

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

Q: 4. The power measured in an open circuit test on a transformer corresponds to: A) Losses in…

A: to find the power losses measured in open circuit test of the transformer

Q: A single phase transformer is connected to a 660 V supply . The voltage to turn ratic transformer is…

A: In this question we will find transformers primary and secondary turns and area of core...

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

A: Given: A 200/100 V transformer with f1=50 Hzf2=40 Hz Transformer is to be excited at 40 Hz from 100…

Q: 68. A transformer has a core loss of 64 W and a copper loss of 144 W when it is running 20%…

Q: Question three: A single phase, 4600/460 V, 60 Hz, transformer is connected to a 60 Hz, 4600V power…

A: In the single phase transformer 4600/460V , 60Hz Maximum flux density Bm= 0.85T Per turn induced…

Q: A 100 kVA, 1000 V / 300 V, 50 Hz, single-p nsformer has an iron loss of 550 W and a fu d copper loss…

Q: 2.) Apply the core concepts of Faraday's law to solve the following questions a) State Faraday's Law…

A: We have given the following problem

Q: A short-circuit test is carried out on a single-phase, 10 MVA, 66 kV/7.2 kV transformer T as shown…

A: Given information: The value of the rated primary current is:

Q: Example 2-2. The equivalent circuit impedances of a 20-kVA, 8000/240-V, 60-Hz transformer are to be…

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

A transformer takes a current of 1A when its primary is connected to a 200 volt, 50 Hz
supply, the secondary being on open circuit. If the power absorbed is 100 watts,
determine (a) the iron loss current, (b) the magnetizing current.

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

The primary winding of a 50-Hz transformer has 480 turns and is fed from a 6400-V supply. Determine (a) the peak value of the flux in the core, and (b) the secondary voltage if the secondary winding has 20 turns.
Question three: A single phase, 4600/460 V, 60 Hz, transformer is connected to a 60 Hz, 4600V power supply. The maximum flux density in the core is 0.85 T. If the induced voltage per turn in 10V, determine (a) The primary turns (N1) and the secondary turns (N). (b) The cross-sectional area (A) of the core.
Solve the problem and illustrate the circuit. Answers must be in 3 decimal places A 480/220 V, 60-hz single phase transformer has a maximum flux density of 1 Tesla. If the voltage/induced per turn is 1.5 Volts, determine the cross-sectional area in the core in cm and the primary and secondary number of turns.
Example 2-2. The equivalent circuit impedances of a 20-kVA, 8000/240-V, 60-Hz transformer are to be determined. The open-circuit test and the short-circuit test were performed on the primary side of the transformer, and the following data were taken: Open-circuit test (on primary) Short-circuit test (on primary) Voc = 8000 V Vsc = 489 V loc = 0.214 A Isc = 2.5 A Voc = 400 W Ps = 240 W
In the T-shaped equivalent circuit of the transformer for the load mode, indicate the resistance in which power will be released, equal to the electrical losses of the secondary winding. Select one: O a. 12 O b.11 O c. Zload O d. l2 O e. Im Clear my choice Which of the listed quantities determines on the substitution circuit the resistance of the magnetization branch Rm Select one: O a. Dol, Do2 O b. Pel - electrical losses O C. Pst - losses in steel O d. K-transformation ratio O e. om - mutual induction flow Clear my choice
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
The circuit for a 20-kVA, 220/3960 V, 50-Hz transformer is shown in Figure (1). The open- circuit test and the short-circuit test was performed on this transformer and the following data were taken: Open-Circuit test: Voc=240 V, Ioc=2.8 A, Poc=260 W Short-Circuit test: Vsc = 350 V, Isc=7.6 A, Psc = 420 W 1) Find the values of Rc, XM, Rp and Xs for this transformer. 2) Find the equivalent circuit of this transformer referred to the high-voltage side and draw the circuit. j 0.163 Q jXM 0.02 02 jXs
1. Explain why transformer saturation occurs at a lower voltage value when the frequency of the ac power source is decreased?
A 100 KVA, 11,000/2200 V, 60 Hz, single-phase power system transformer gave the following test results: Open-circuit test: V = 2200 V, I = 1.59 A P = 980 W Short-circuit test: V = 580 VI = 9.1 A P = 1100 W a) Determine the voltage regulation of the transformer when supplying rated load at 2200 V and a lagging power factor of 0.8. Use the approximate circuit. b) Find the efficiency of the transformer when supplying rated load at 0.8 power factor lagging
2-An ideal transformer consists of a primary winding (100 turn) and a secondary winding (1000 turn). The secondary winding is connected to a resistance (50 ohm). The amount of electric current in the secondary winding which equil to , when the voltage on the secondary winding is 100 volts
A 200 V/100 V, 50 Hz transformer is to be excited at 40 Hz from 100 V side. For the exciting current to be constant, the applied voltage should be ?
For problem 1-3, consider Figure 1. 2:1 re 120 Vrms ellee reelle Figure 1 1. The peak voltage at the secondary winding of the transformer is A. 60 V B. 120 V C. 169.7 V D. 84.9 V 2. The dc voltage at the load is A. 27 V B. 54 V C. 38.16 V D. 76.32 V 3. The peak current at the load is A. 272.7 mA B. 771.4 mA C. 386 mA D. 545.4 mA RL 220 Ω