(a) Answer the following questions. (i) Explain briefly the main funetion of a power transformer in an AC system. (ii) State the relationship between voltage, current, and the number of windings on the primary and secondary sides of an ideal power transformer.

(a) Answer the following questions. (i) Explain briefly the main funetion of a power transformer in an AC system. (ii) State the relationship between voltage, current, and the number of windings on the primary and secondary sides of an ideal power transformer.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter5: Components, Symbols, And Circuitry Of Air-conditioning Wiring Diagrams

Section: Chapter Questions

Problem 15RQ: What is the purpose of a transformer? Draw the symbols for a transformer.

See similar textbooks

Related questions

Q: Derive the equation of induced voltage in secondary winding of transformer (load side).

Q: 3. An 100-kVA, 2500/125-V, 50-Hz, step-down transformer has the following parameters: R₁ = 1.50, X₁…

A: Given that ,Rated output k VA.Induced EMF ratio Volts.Turns ratio is .Supply frequency Hz.R1 =…

Q: What is the relationship between the power losses and the load current of a power transformer?…

Q: An iron core is most often used in an AC transformer to 1.provide a better coupling between the…

A: An AC transformer is a device used to transfer electrical energy between two or more circuits…

Q: Draw and explain the efficiency characteristics of transformer and regulation characteristics of…

Q: A single phase, 50-Hz transformer has 80 turns on the primary winding and 400 turns on the secondary…

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

Q: C3 (ii). The primary and secondary winding of an transformer has 95 turns and 20 turns,…

A: Note :- As C3 (ii) & (iii) are not linked with each other. Both have different questions. So as…

Q: From the short circuit test and open circuit test in #19 and #20, the equivalent circuit of a…

Q: Can I have a little help with this , or an explanation to how to get started . A solution would be…

Q: Discuss the relationship between the operating frequency and the transformer size? Through your…

A: Considering the EMF equation of the transformer, E=4.44×f×Bm×N×A Here, E is emf, f is frequency, Bm…

Q: What is the basic functions of transformer? What is short circuit test ?

A: A transformer is made up of two electrically separate coils and works on the Faraday principle of…

Q: An 100-kVA, 2500/125-V, 50-Hz, step-down transformer has the following parameters: R₁ = 1.50, X₁ =…

A: Given information is,Rated output k VA.Induced EMF ratio Volts.Turns ratio is .Supply frequency…

Q: 8- In core design of power transformer the number of steps increased as the cross-sectional area…

A: In core designing of the power tramsformer, the number of steps are more as the cross section area…

Q: Electrical Engineering... What is the function of potential transformer? Drawbacks ?

A: Transformers are passive electromagnetic devices that transfer electrical power magnetically from…

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: A 23-kVA, 2300/230-V, 60-Hz, step down transformer has the following resistance and leakage-…

Q: A 3000/200-V, 50-Hz, 1-phase transformer is built on a core having an effective cross-sectional area…

A: Given, A 3000/200-V, 50-Hz, 1-phase transformer Primary voltage, E1 = 3000 V Secondary voltage, E2 =…

Q: Draw an equivalent circuit for a real transformer. Briefly discuss the reason that each element…

A: Given: To draw an equivalent circuit for a real transformer and its elements is described as:

Q: DC 200 V was applied to the primary of a transformer with a conversion ratio of 1/5. Obtained from…

Q: What assumptions did we make in deriving the relationships between the voltages and currents in an…

A: The assumption is given as: The first necessary thing is a coil having resistance, and losses are…

Q: 3/The core of a 300-kVA, 15000/650 V, 50-Hz, 1-ph, core type transformer has across- section of 30…

A: In the given question we note that The core of = 300 KVA , 1500/ 650 V Cross section area is…

Q: Draw the general diagram of a single-phase transformer and briefly show how it works.

A: Transformer: A transformer is just a stationary device that converts electric energy from one…

Q: 5. Transformer cores are laminated in order to (a) simplify its construction (b) minimise eddy…

A: Transformer is a static device which is used to step up /down the current or voltage level without…

Q: The efficiency of a transformer will be maximum when ........................? (A) copper losses =…

Q: 2. A single-phase, 50-Hz, core-type transformer's no-load voltage ratio is 1,200/440. If the maximum…

A: Since you have asked multiple questions , we will solve the first question for you . If you want any…

Q: Q2/ Fill in the blanks: 1- The two windings of a transformer is ........ linked. 2- If a transformer…

A: In this question we will write transformer related questions.....

Q: What is an electrical transformer? Discuss basic principles of operation and applications of…

A: Let us aassume we have a transformer in this we have a core ,primary winding(N1 turns) secondary…

Q: QS/A single phase, 50-Hz transformer has 80 turns on the primary winding and 400 turns on the…

Q: 4. A single-phase, 50 Hz transformer has 25 primary turns and 300 secondary turns The…

Q: Consider the following open circuit transformer as shown in figure below which operate at: the…

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

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

What is the purpose of a transformer? Draw the symbols for a transformer.
What is the relationship between the power losses and the load current of a power transformer? Explain briefly.
C3 (ii). The primary and secondary winding of an transformer has 95 turns and 20 turns, respectively. If the primary is connected to 205 V, 50 Hz mains and the cross-sectional area of the core is 325 cm2. Calculate (a) the maximum flux density, and (b) the voltage induced in Secondary Winding. The Maximum flux density is The voltage induced in Secondary Winding is C3 (iii). The armature of a 6 pole DC shunt generator has 30 slots and is wave wound with 10 conductors per slots. The shunt field resistance of 78 ohms and an armature resistance of 2 ohms. The flux per pole is 0.02 Wb and total brush drop is 2 V. If the load resistance of 26 ohms is connected across the armature terminals and the generator is driven at 845 rpm. The Armature current is The power absorbed by the load is
Electrical Engineering... What is the function of potential transformer? Drawbacks ?
DC 200 V was applied to the primary of a transformer with a conversion ratio of 1/5. Obtained from seconderexplain the reason for this by typing the voltage value to be?
What assumptions did we make in deriving the relationships between the voltages and currents in an ideal transformer?
4. In a transformer, which options are correct: A. Works on Faraday’ law and Ampere's law B. DC current in the primary winding will produce voltage output in the secondary winding C. Copper losses are caused by reluctance in magnetic circuit D. Frequency of input power source will not govern the voltage induced in secondary circuit. 5. Voltage ratio of input voltage and output voltage in IDEAL transformer depends on: A. Leakage flux B. Magnetization current C. Copper loss current D. Turns ratio 6. The core of transformer must have A. Low reluctance C. High reluctance B. High resistance D. Low resistance 7. An overexcited synchronous motor behaves like: B. Resistive load D. DC generator A. Inductive load C. Capacitive load 8. The amount of real power delivered by a synchronous generator connected to an infinite bus can be controlled by adjusting A. System frequency C. Full load frequency B. No load frequency D. Terminal voltage
A 3000/200-V, 50-Hz, 1-phase transformer is built on a core having an effective cross-sectional area of 150 cm2 and has 80 turns in the low-voltage winding. Calculate (a) the value of the maximum flux density in the core (b) the number of turns in the high-voltage winding.
Draw the general diagram of a single-phase transformer and briefly show how it works.
Q3/The core of a 300-kVA, 15000/650 V, 50-Hz, 1-ph, core type transformer has across- section of 30 cm × 30 cm. Find (i) the number of H.V. and L.V. turns per phase and (ii) the e.m.f. per turn if the maximum core density is not to exceed 1.5 Tesla. Assume a stacking factor of 0.75.What will happen if its primary voltage is increased by15% on no- load ?
1. In a transformer, which options are correct:A. Works on Faraday’ law and Ampere’s lawB. DC current in the primary winding will produce voltage output in the secondary windingC. Copper losses are caused by reluctance in magnetic circuitD. Frequency of input power source will not govern the voltage induced in secondary circuit.2. Voltage ratio of input voltage and output voltage in IDEAL transformer depends on:A. Leakage fluxB. Magnetization currentC. Copper loss currentD. Turns ratio3. The core of transformer must have:
A 23-kVA, 2300/230-V, 60-Hz, step down transformer has the following resistance and leakage- reactance values: R1=40, R2=0.040, X1=120, and X2-0.120. The transformer is operating at 75% of its rated load. If the power factor of the load is 0.866 leading. Determine the efficiency of the transformer.