Answered: If P, and P2 be the iron and copper…

If P, and P2 be the iron and copper losses of a transformer on full load, the ratio of P, and P2 such that maximum efficiency occurs at 75% of full load 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 3.32MCQ

See similar textbooks

Related questions

Q: If a transformer has some losses, the efficiency of transformer is given as_ o n=…

A: Efficiency of transformer is the ratio between output power and input power.

Q: A transformer has 500 primary turns and 3000 secondary turns. If the primary voltage is 240V,…

Q: The open circuit and short circuit tests of a transformer show 200 W and 142 W respectively. The…

Q: Draw the typical volt-ampere characteristic (U2=f(I2)) in a loaded voltage transformer. Denote the…

Q: L1 R1 R1 L2 N1:N2 12 Lm Rc V1 V2

Q: How does change in frequency affect the operation of a given transformer? with a decrease in…

A: Transformer:

Q: An ideal transformer is the one having no losses with some resistance in the winding. Select one: O…

A: Transformer is static device which work on Faraday's Law of electromagnetic induction. If the…

Q: An ideal transformer with a 500 turns primary and 125 turns secondary windings delivers 400W to a…

Q: 1. Explain the working principle of transformer with neat sketch and what are the losses occurred in…

A: Working principle of transformer Transformer is a electrical passive device it amplifies voltage at…

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

Q: If P₁ and P2 be the iron and copper, losses of a transformer on full-load, what is the ratio of P₁…

A: Given, Iron loss, P1 Copper loss, P2 Maximum efficiency occurs at 75% of full load.

Q: A certain 60-Hz, 20-kVA, 8000/240 V-rms transformer is operated with a short-circuited secondary and…

A: Calculating source voltage Calculating equivalent impedance

Q: Find the power absorbed by the 10-0 resistor in the ideal transformer circuit given in the figure.…

A: The solution is given below

Q: a. What is Vs? b. Solve for thew load impedence Z_L. c. What is the value of the load impedance when…

Q: A transformer is needed that will cause an actual load resistance of 25 Ω to appear as 100 Ω to an…

A: The circuit diagram is shown below: Transfer RL on primary side;

Q: In the circuit given in the figure, Interface Circuit refers to the ideal transformer with the…

Q: An Ideal transformer circuit diagram is shown below. Find I1, l2, V1, and V2 values.

Q: 3. The low-voltage winding of a 3000/200-V, 50-Hz, a single-phase transformer has 80 turns and…

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

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

Q: What is the difference between a step-down and step-up transformer? Give one instance for each where…

A: Step up transformer : Transformer is electrical device which transfer electrical energy from one…

Q: A transformer has an efficiency 80% ,with primary voltage V, is 300V and a load R=2k2. Pour= 700kw,…

A: V1 ,V2 are primary and secondary voltages respectively I1 ,I2 are primary and secondary currents…

Q: 3. WRITE IN DETAIL ABOUT TRANSFOERMER, WHAT IS STEP DOWN TRANSFORMER USED FOR? with the help of…

A: A transformer is a static device, which converts electrical power from one circuit to the other…

Q: 3. An ideal transformer with a 500 turns primary and 125 turns secondary windings delivers 400W to a…

Q: You have been assigned to select a transformer to supply a peak power of 100 kW to a load that draws…

A: Given a transformer is supplying the peak load of 100 kw for small time and very less load in the…

Q: -.18 For the transformer shown in Figure P13.18, N = 1,000 turns, h = 16 cm, A¡ = 4 cm², ½ = 22 cm,…

A: Given data: The number of turns is: 1000 The relative permeability is: 1500 a) The magnetic circuit…

Q: The primary of a certain transformer takes 1 A at a power factor of 0.4 when connected across a 230…

Q: Two tests were performed on a 4-kVA , 200/400 V transformer to in order to determine its efficiency.…

Q: What is transformer? Can we use dc supply for transformer?

A: A transformer is static electrical equipment that transmits AC electrical power from one circuit to…

Q: Draw the scheme of a single-phase transformer with two secondary windings and mark the main symbols…

Q: 1. An ideal transformer with N, 2400 and N2 = 400 is connected with an imped %3D across winding 2,…

Q: A transformer is working at its maximum efficiency with iron-loss of 500 W, then its copper-loss…

A: The following image consists of a proof that at maximum efficiency , Iron losses = copper losses.

Q: For the ideal transformer derive the relation between the following terms: a) N₁ arid N₂ b) Land L2…

A: (a) Given the primary turn ratio is N1 and N2.

Q: Discuss the types of transformers with their applications. Explain with a neat diagram an isolation…

A: A transformer is a stationary machine that transfers the power from one circuit to another which is…

Q: 391. A transformer has maximum efficiency at load copper loss (P.), is of full load. The ratio of…

A: Given, Transformer maximum efficiency at load factor, x=34.

Q: What are the advantages of Delta connection in high power transformer?

A: Transformer : It is an electrical device used to transform the voltage from one level to another.…

Q: An ideal transformer is one which has No losses and magnetic leakage Core of stainless steel and…

A: Correct option is No losses and magnetic leakage an ideal transformer haven't any losses and…

Q: If P1 and P2 be the iron and copper losses of a transformer at full load, and the maximum efficiency…

A: Given, Iron loss= P1 Copper loss= P2 As the maximum efficiency of the transformer is at 75% of the…

Q: An ideal transformer with a 500 turns primary and 125 turns secondary windings delivers 400W to a 4Ω…

Q: Find out the equivalent inductance for the combination when 2 inductances L1 and L2 are connected in…

A: Note as there two different questions and we are asked to solve one question at a time. So repost…

Q: A transformer has 800 primary turns and 2000 secondary turns. If the primary voltage is 160V,…

Q: Q4) A transformer is rated 20k V/200k V, 350MVA and has an internal impedance of j6.42 as seen from…

A: Rating of the transformer= 20kV/200kV, 350MVA

Q: 3. An ideal transformer with a 500 turns primary and 125 turns secondary windings delivers 400W to a…

Q: • The mutual inductance of 2-winding IT in terms of the physical parameters of the transformer.

A: Mutual inductance is defined as changes in flux linkages of coil with respect to change in current…

Q: Derive the mutual-inductance of 2-winding IT in terms of the physical parameters of the transformer.

A: To derive the mutual-inductance of 2 winding inductive turn in terms of the physical parameter of…

Q: (a) What will happen if the primary of a transformer is supplied with a DC supply? Show that emf per…

Q: Describe the difference of output for a power supply versus control power transformer.

A: to describe the difference of output for a power supply versus control power transformer.

Q: A 7200-240-V, 60-Hz transformer is connected for step-up operation, and a 144/46°-2 load is…

A: Given data, The value of turn ratio is n2n1=7200240. The value of load resistance is R = 144∠46∘ Ω…

Q: Explain the working principle of a transformer.

Q: Which of the following is not a property of an Ideal Transformer Select one: a. L1= b. k=1 C. L2= d.…

A: In this question , we will find which is not a property of an ideal transformer...

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

If P, and P2 be the iron and copper losses of a transformer
on full load, the ratio of P, and P2 such that maximum
efficiency occurs at 75% of full load is

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

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

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.
An ideal transformer with N1=1000andN2=250 is connected with an impedance Z22 across winding 2. If V1=10000VandI1=530 A, determine V2,I2,Z2, and the impedance Z2, which is the value of Z2 referred to the primary side of the transformer.
Consider a source of voltage v(t)=102sin(2t)V, with an internal resistance of 1800. A transformer that can be considered as ideal is used to couple a 50 resistive load to the source. (a) Determine the transformer primary-to-secondary turns ratio required to ensure maxi mum power transfer by matching the load and source resistances. (b) Find the average power delivered to the load, assenting maximum power transfer.
For the transformer in Problem 3.10. The open-circuit test with 11.5 kV applied results in a power input of 65 kW and a current of 30 A. Compute the values for GcandBm in siemens referred to the high-voltage winding. Compute the efficiency of the transformer for a load of 10 MW at 0.8 p.f. lagging at rated voltage.
For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the rated voltage on the other winding? (a) Yes (b) No
In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across a transformer, the voltage base is changed in proportion to the transformer voltage ratings. (a) True (b) False
An ideal transformer has no real or reactive power loss. (a) True (b) False
A 23/230-kV step-up transformer feeds a three-phase transmission line, which in turn supplies a 150-MVA,0.8 lagging power factor load through a step-down 230/23-kV transformer. The impedance of the line and transformers at 230kVis18+j60. Determine the tap setting for each transformer to maintain the voltage at the load at 23 kV.
For developing per-unit equivalent circuits of single-phase three-winding transformer, a common Sbase is selected for all three windings and voltage bases are selected in proportion to the rated voltage of the windings (a) True (b) False
The ideal transformer windings are eliminated from the per-unit equivalent circuit of a transformer. (a) True (b) False
For an ideal 2-winding transformer, the ampere-turns of the primary winding, N1I1 is equal to the ampere-turns of the secondary winding, N2I2 (a) True (b) False
If P1 and P2 be the iron and copper losses of a transformer at full load, and the maximum efficiency of the transformer is at 75% of the full load, then what is the ratio of P1 and P2 ?