E1 3. For ideal transformer on no load E2 ... ...
Q: Q2/A/ What are the conditions for satisfying parallel operation of single phase transformer? Deduce…
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Q: Derive emf equation for an ideal transformer
A: We will use faraday law to derive EMF equation of ideal transformer.
Q: 1. From first principles, derive the per-phase equivalent circuit of a three-phase transformer…
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Q: For an ideal 2-winding transformer, an impedance Z2 connected across winding 2 (secondary) is…
A: For a 1-phase transformer, the basic relation is given as:
Q: Q14 An ideal transformer is rated at 2700/12O 9.6KVA, and has 5o turns on the seund side. Caleulate…
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Q: How does change in frequency affect the operation of a given transformer? with a decrease in…
A: Transformer:
Q: Q3) What are the elements finding from no-load test of single phase transformer?
A: At no load test rated voltage is applied with secondary open circuited. At no load only magnetizing…
Q: 1) How can you prove that Lsec = Lan (RI/ Rs) for matching impedance with the ideal transformer?
A: We are authorized to answer the only single question at a time since you have not mentioned which…
Q: 18. An ideal 50-Hz, core-type transformer has 100 primary-turns and 200 secondary- turns. The…
A: The data given in the question are: N1=100, N2=200, V1=220V, Bm=1.2T,f=50Hz The cross sectional are…
Q: Q1// What is the purpose of conducting experiments (o.c) and (s.c) on asingl- nhase transformer?
A: TRANSFORMER: The transformer transfers power from one circuit to another circuit without a change…
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: how to do a transformer empty and short-circuit test, what are the most important parameters and how…
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Q: A delta-star transformer has phase to phase voltage transformation ratio of a:1. What is the line to…
A: Given: Delta phase voltageStar phase voltage=a1
Q: Derive step by step, the electromotive force equation for a single-phase transformer.
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Q: 1. The RMS value of induced emf in the primary N1 winding is E1 =; E2 = 2. In ideal transformer on…
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Q: A three-phase transformer is given. The number of turns of the high voltage winding is N1=850 and…
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Q: For the ideal transformer circuit in the following figure, determine i,(t).
A: Converting the given circuit in 'S' domain
Q: A 60-Hz single-phase transformer has a turns ratio of 8. The resistances 0.90 2 and 0.05 2 and the…
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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: Explain the steps that are required to use an ideal transformer in order to match a 500 ohn load…
A: Solution- Let, Where Vs = source voltage Zs = source impedance ZL = load…
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: An ideal transformer with N, = 2400 and N2 = 400 is connected with an impedance Z2 across winding 2,…
A: In this question, We need to determine the impedance Z2 " Referred to primary side? We know…
Q: (a) Describe the main difference between ideal transformer and practical transformer with help of…
A: In this question need to describe the main difference between ideal transformer and practical…
Q: Calculate the value of the impedance seen by the source if the step-down transformer turns ratio a;…
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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: Short discuss about transformer cooling...
A: Transformer:- A device that moves electric energy from one alternating-current circuit to one other…
Q: Draw the scheme of a single-phase transformer with two secondary windings and mark the main symbols…
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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: the no load current I0 is in phase with the magnetic flux
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Q: talk about coreless transformer
A: The brief explanation is as follows.
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: 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: a. The primary of a certain transformer takes 1 A at a power factor of 0.4 when connected across a…
A: (a) Part (i) Consider the transformer is on open-circuit. Draw the circuit diagram of an equivalent…
Q: Q1. what are the advantages of transferring parameters from 1 side of transformer to other side?…
A: Advantages of transferring parameters from 1 side of transformer to other side- 1.Easy to calculate…
Q: As given in the figure, an ideal transformer with a 2: 1 winding ratio is fed from a 240 Volt source…
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Q: Write the voltage as a function of the transformer turns ratio for the following circuits respecting…
A: This question belongs to electrical machine . It is based on the concept of relation between…
Q: 8. What is a cascaded transformer? Explain why cascading is done? Describe with neat diagram, a…
A: The transformer has a primary and a secondary side. It converts electrical power to electrical power…
Q: - Draw the phasor diagram of an ideal transformer on No-load.
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Q: 3: Show the effect of the frequency on the following parameters in transformer: (a) Flux density…
A: Need to find the effect of frequency on the following parameter in transformer
Q: A single-phase transformer, working at unity power factor has an efficiency of 90 % at both…
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Q: A) Name two types of Transformer equivalent circuit and then compare them.
A: We are authorized to answer one question at a time so answering only 1 please upload other question…
Q: True or false? An ideal transformer has no real or reactive power loss.
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Q: A transformer has a reactive drop of 6% and a resistive drop of 2.5%. Determine the lagging power…
A: The voltage regulation is given by the expression as shown below: In terms of the values of the…
Q: A Buck converter has an output power of 1950 Watts, and a source voltage of 1000V (the constant DC…
A: For a buck converter Vo=DVs.
Q: Define all the losses in the transformer with the diagram and then define the hysterisis loss with…
A: When the transformer is woking on the no-load condition, there are two components of the losses.…
Q: e) What are the specifications for new insulating oils for transformer and switchgears? What are the…
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Q: Subject: Electrical Apparatus In an ideal transformer, what is the winding that is being supplied?
A: This is a basic problem of transformer The solution is given below in the next step
Q: Explain the working principle of a transformer.
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Q: A 5000-VA, 480/120-V conventional transformer is to be used to supply power from 600-V source to a…
A: In this question , we will find required autotransformer , it's kVA rating and primary and secondary…
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- 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 has no real or reactive power loss. (a) True (b) FalseIn 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
- A bank of three single-phase transformers, each rated 30MVA,38.1/3.81kV, are connected in Y- with a balanced load of three 1, Y-connected resistors. Choosing a base of 90MVA,66kV for the high-voltage side of the three-phase transformer. spify the base for the low-voltage side. Compute the per-unit resistance of the load on the base for the low-voltage side. Also, determine the load resistance in ohms referred to the high-voltage side and the per-unit value on the chosen base.Efficiency at full-load and half the full-load at 0.8 p.f. lagging current. Equivalent reactance referred to primary & referred to secondary..........ohm , ..........ohm Equivalent resistance referred to primary & referred to secondary..........ohm , ..........ohm Regulation of transformer at 0.5 p.f. lagging current The magnetizing current and reactance component of no-load are.........amper , .........ohm The working current and resistance component of no-load are.........amper , .........ohm *A 250/125 V, five kVA single-phase transformer has a primary resistance of 0.2 ohms and reactance of 0.75 ohms. The secondary resistance is 0.05 ohm and reactance of 0.2 ohms.a) Determine its regulation while supplying full load on 0.8 leading p.f.b) The secondary terminal voltage on full load and 0.8 leading p.f.Ans.: -0.4.88%; 131.1
- Q2/3-phase.E.W.C. R using center tap transformer supplies highly inductive load, find: 1. The average load voltage with and without FWD and discusses these cases. 2-lf firing angle equal to 45°, the supply voltage is240v, transformer ratio is (2/1). Calculate the DC current& voltage of this case. 3- Draw all waveforms diagram. 4- what are the difference between the type of connection (Delta or Star).The primary ofa certain transformer takes 1 A at a power factor of 0.4 when connected across a 230 V, 50 Hz supply and the secondary is on open circuit. The number of turns on the primary is twice that on the secondary. A load taking 50 A at a lagging power factor of 0.8 is now connected across the secondary. Sketch, and explain briefly, the phasor diagram for this condition, neglecting voltage drops in the transformer. What is now the value of the primary current?6) A transformer takes 100V at primary and gives 50V at secondary, its turn ratio equals ... .... ... ...
- What are the two component of no load current of transformer and write its equation (Rule)A 50 Hz 1-phase transformer has a turn-ratio of 6. The resistances are 0.90 ohm and 0.03 ohm and the reactance’s 5 ohm and 0.13 Q for high voltage and low voltage respectively. Determine (a) the voltage to be applied to the high voltage side to obtain full load current of 200 A in the low voltage winding on short circuit (b) the p.f. on short circuit.Some power devices have bidirectional current capability Select one: O a. True b. False The voltage regulation of the transformer will depend on the load Select one: O a. For mainly inductive or resistive load, the voltage regulation is negative O b. For mainly capacitive, inductive or resistive load, the regulation is positive Oc. For mainly capacitive load, voltage regulation is positive and other loads it is negative. O d. For mainly capacitive load, voltage regulation is negative.