Q4-(A)-A 230 V, 2.5 KVA single -phase transformer has an iron of 100 w at 40 Hz and 70 w at30Hz. Find the hysteresis and eddy current losses at 50Hz)(B)-Indicate whether the following statements are true or false and correct the false statements1- Two transformer are operating in parallel, their load sharing will depend upon per unitimpedance2- E.M.F per turn (E/N) in H.V. winding is more than the E.M.F per turn in L.V. winding3- open circuit test in transformer is performed with rated transformer current4- Transformers are rated in KVA instead of KW because KVA is fixed whereas KWdepends on load power factor5- The core losses in a transformer are independent of power factor

Answered: Image /qna-images/answer/0bc9edac-6635-4376-9f6c-49921de7c8b2.jpg

Answered: -(A)-A 230 V, 2.5 KVA single -phase…

-(A)-A 230 V, 2.5 KVA single -phase transformer has an iron of 100 w at 40 Hz and 70H Find the hysteresis and eddy current losses at 50Hz

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Related questions

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: Whether a transformer shifts an ac waveform by 0° or 180° depends on the phasing of the waveform…

A: Shifts of ac waveform by 0 to 180 degree is depending on

Q: A 209 V / 125 V single-phase transformer has a core loss of 120 W and the no-load current is 0.7 A.…

A: We need to calculate power factor .we will use given data to calculate power factor

Q: A 50 Hz, Scott connected transformer supplies an unbalanced two phase load at ( 400 V) per phase.…

Q: A single phase transformer has a full load total loss of 900 W and an iron loss of 500 W. The copper…

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

Q: In transformer, the hysteresis loss depends on load current O only flux density O both frequency and…

A: consider the given question;

Q: With a turns ratio of 12 to 1 and an input voltage of 240V and output 12V, propose a system of…

A: The solution is given below

Q: A transformer has a turn ratio of 1: 10. A resistance of 2000 ohms is connected across the secondary…

Q: Problem: For the given circuit as shown in figure a) Find the equivalent reactance b) Draw the…

A: Solution !!

Q: transformer is called single winding transformer. O Three phase O Auto O 1:1 O Isolation

A: Correct option is auto transformer that is 2nd option is correct

Q: If the turn ratio of a step-up transformer is 1:15 and the full-load secondary current is 300 A, the…

Q: The number of turns on the primary and secondary windings of a 1-p transformer are 350 and 42…

A: Given : A single phase transformer having number of turns on the primary and secondary winding are…

Q: A 5 kV/ 112 V, 50 Hz, single-phase transformer is to have an approximate E.m.f. per turn of 27 V and…

A: 5KV/112 V, 50Hz single phase transform have per turn emf= 27V. Flux density B =1.55T Flux = B.A A…

Q: In transformer, the loss which remains constant irrespective of load is

A: Correct answer is Core losses core losses in the transformer consists of hysteresis and eddy current…

Q: What would happen if primary and secondary of transformer are connected to sources of different…

A: Transformer is used to transfer electrical energy from primary winding to secondary winding.…

Q: 50-kVA, 13,200/480-V distributed transformer, the no-load current will be around Select one: O a.…

A: No loade current is always (0-5%) ofRated currentif transformer iscase1 single phaseH.V…

Q: A single-phase 800 V/100 V, 50 H transformer has a core maximum density of 1.8 Wb/m² and an effe…

Q: What are advantages of transfering parameter from 1 side of transformer to other side? Subject…

A: The advantages of transferring parameter from 1 side of the transformer to the other side are 1.…

Q: Q.4. Answer (only Two) of the followings: A. Draw the logic circuit and waveform of the 4-bits SISO…

A: Approach to solving the question: Answer explained above. Detailed explanation: Examples: Key…

Q: Open circuit test on transformers is conducted to determine O Eddy current losses O Copper losses O…

A: Electrical machines can be either DC or AC machines. Transformer is an AC machines with no rotating…

Q: The open-circuit voltage of 242 V and the full load secondary voltage of 234 V, then the %…

Q: In transformer, the eddy current loss can be minimized by using thin size copper conductors using…

A: Transformer have 2 types losses In the question the eddy current losses can be minimised by???

Q: In transformer, the eddy current loss depends on both frequency and flux density load current only…

A: The circulating current produced in the body of the magnetic material when it is subjected to an…

Q: connection of transformer is used to convert three phase to single phase. In a DC machine, e.m.f…

A: Scott T Transformers is used to convert three phase to single phase. It uses teaser transformer…

Q: What are the different losses across the transformer? Which losses are variable? What turns ratio…

Q: What type of transformer did you build where the secondary voltage is lower than the rimary voltage?…

Q: The hysteresis loop of the core material of a transformer should have (a) a large area (b) a small…

A: When a transformer is in use, its core is taken up by many complete magnetization cycles. During…

Q: The short circuit test of a transformer gives information of

A: In this question , we will write about short circuit test of a transformer....

Q: A 1150/140V, 50 HZ, 1-phase transformer with cross sectional area of the core is 34 cm2 and maximum…

A: From the Transformer induced voltage expression

Q: single phase transformer

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

Q: A) In any transformer's core, we have two types of losses, what are they? B) Explain why the core…

A: A) In any transformer core there are 2 types of core losses. They are 1) Hysteresis Loss. 2)…

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

A: In this question, Choose the correct options What is power factor to become zero voltage…

Q: A current transformer has a phase error of +3°. The phase angle between the primary and secondary…

A: Given: A current transformer has, Phase error = +3°

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

Q: Ql-phase step down transformer 1250 KVA, 11000/2200 V, 50 Hz . The resistance /phase and leakage…

A: Given: KVA=1250, V1/V2=11000/2200Primary impedance=0.78+j4.8ΩSecondry impedance=0.01+j0.06Ω

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

Q4-(A)-A 230 V, 2.5 KVA single -phase transformer has an iron of 100 w at 40 Hz and 70 w at
30Hz. Find the hysteresis and eddy current losses at 50Hz
)
(B)-Indicate whether the following statements are true or false and correct the false statements
1- Two transformer are operating in parallel, their load sharing will depend upon per unit
impedance
2- E.M.F per turn (E/N) in H.V. winding is more than the E.M.F per turn in L.V. winding
3- open circuit test in transformer is performed with rated transformer current
4- Transformers are rated in KVA instead of KW because KVA is fixed whereas KW
depends on load power factor
5- The core losses in a transformer are independent of power factor

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 3

VIEW

Step by step

Solved in 3 steps with 3 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

In a step-up transformer, the turn ratio is 1: 20. The resistance of 100 connected across the secondary is drawing a current of 2 A. What are the primary voltage and current respectively?
I only have 40 minutes
The iron core in a transformer has the purpose of decreasing the reluctance of the magnetic path reducing hysteresis loss providing support to windings reducing eddy current loss
In no load phasor diagram of practical transformer, the magnetizing current is with primary voltage Vp. O In phase O Leading by 60 Degrees O Lagging by 60 Degrees O 90 Degree out of phase
i need the answer quickly
The table below shows some performance parameters of a certain power transformer. Full-load voltage regulation Full-load copper loss Load power factor 5% 0.5 Lagging Zero voltage regulation is obtained at a load power factor of: 0.9176 leading 08 leading 0.397 lagging 2% 0.703 leading
A Transformer having 259 V in the primary with a primary current of 14 A. For a secondary Voltage of 414 V, the current in the secondary will be O 22.38 O 0.63 O 1.60 O 8.76
A transformer has a turn ratio of 1: 10. A resistance of 2000 ohms is connected across the secondary terminals. The resistance offered to the current in primary winding will be
Tansformers
The no-load current in the transformer lags behind the applied voltage by phase angle about
Due to the increase in load, what change you saw in the transformer’s output power and the efficiency?
Rather than use transistors your friend W. Too wants to use diodes to implement logic gates. He shows you the circuit he designed shown in figure 5. If A and B can swing all the way from 0 V to VDD, does the circuit implement a logic gate? If so what gate is it and what is its static discipline? Assume the diode is modeled by an ideal diode with a series resistance RD V. DD R₁ L ΟΥ AO Bo Figure 5: Diode Based Logic Gate