QUESTION 12 An 6.6 kV, three-phase star-co armature resistance is 1.2 Qa Determine efficiency of the me a. 61% b. 67% c. 83% d. 96% e. 73% f. 88% g. 92% h. 78%

Q: A 440/110 V single phase transformer when operated at no load has 6 A No current takes at 0.25…

A: solution: Given data; single phase transformer: 440/110 V, no load current Io=6 A, cosϕo=0.25,…

Q: he de-rating of a heavily loaded transformer with harmonic currents is known as... O Q-factor O…

A: This method, used  to estimate by how much a standard transformer should be de-rated so that the…

Q: Write the short notes on Reactive Power compensation for test transformer. (Submit Through Turnitin…

A: The management of reactive power to improve the performance of alternating-current (ac) power…

Q: The flux linking of winding 2 if the current in the winding 1 is -4 A, and the current in winding 2…

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

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Q: Explain the operation of a single phase transformer at no-load. Draw the phasor diagram and…

A: Transformer is a static device which transfers power from one circuit to another circuit without…

Q: Q5:Choose the correct answer from the given alternatives (answer five only) 1.In an ideal…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Transformation ratio in a single phase transformer is given by .. a. E, /E2 b. N, /N2 c. E, /E, С.…

A: Transformer ratio is an important ratio used in various calculations. It is the ratio of…

Q: What is the relationship between turn ratio and voltage of transformer?

A: In this question we will discuss about the relationship between turn ratio and voltage of…

Q: If the open circuit voltage is 227V and the full load voltage is 207V, then the percentage…

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Q: A single phase 500/200 V ,55HZ transformer has an efficiency of 98% at full-load. Determine the…

A: Given input frequency = 55 Hz and no load terminal voltage = 200 volts full load terminal voltage =…

Q: Identify, which component of no load current supplies hysteresis loss, in a practical transformer?…

A: In the question choose the correct option?    which component of no load current supplies hysteresis…

Q: What conclusions you can come up with after implementing open circuit test on single phase…

A: Conclusions from open circuit test on single phase transformer

Q: construction H.W What is the Transformer construction? Give me types of transformer?

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Q: I need help with solving the question.

A: 7. Transformers are classified based on their construction into two main categories: Core type…

Q: A 400/230V, 50Hz, single phase  transformer has 200 turns on high  voltage side. Find turns ratio,…

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

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: 3. A 3200/400 single-phase transformer has winding resistance and reactance of 30 and 132…

A: In this question,  We need to determine the equivalent terms in primary side and secondary side.

Q: When rated voltage at rated frequency is applied to a single phase transformer the hysteresis and…

A: Given, Hysteresis loss, Ph1=420 W Eddy current loss, Pe1=150 W Voltage in increased by 10%, V2=1.1…

Q: What is the advantages and disadvantages fot testing transformer?

A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…

Q: We have a transformer designed to operate at 60 Hz. The voltage ratings are 4800 V rms and 240 V rms…

A: Given: A transformer is designed to operate at a frequency: f1=60 Hz New frequency is f2=120 Hz…

Q: Detailed conclusions we can come up with after conducting open circuit test on single phase…

A: According to the question we have to, Detailed conclusions we can come up with after conducting an…

Q: what is the Formulae of short test of single phase transformer and Formulae to determine efficiency…

A: If, Wsc = Full load copper losses Isc = short circuit current Vsc = short circuit voltage Equivalent…

Q: The efficiency of the I.M of the same :rating as transformer is

A: Effeciency of Induction motor compared to transformer:

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

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

Q: PRINCIPLE OF OPERATION OF A SINGLE-PHASE IRON CORE TRANSFORMER.

A: Given: PRINCIPLE OF OPERATION OF A SINGLE-PHASE IRON CORE TRANSFORMER. According to question:…

Q: current supplies hysteresis loss, in a practical transformer? a. None of these b. IM c. IC d. I0

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Q: draw a three-phase transformer equivalent circuit and also explain how formulas were derived

A: This is a 3 phase transformer equ6 circuit.

Q: THE PERCENTAGE RESISTANCE AND REACTANCE OFA1-F TRANSFORMER ON LOAD ARE 3% AND 6 %…

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Q: Core losses of a single phase 400/240 V, 20 kVA, 50 Hz transformer is 700 W. Maximum efficiency of…

A: Given, Core losses of a single phase 400/240 V, 20 kVA, 50 Hz transformer is 700 W. (Pi=0.7 kW)…

Q: difference between induction motor and transformer

A: Given: Difference between induction motor and transformer.

Q: Short discuss about transformer cooling...

A: Transformer:- A device that moves electric energy from one alternating-current circuit to one other…

Q: three-phase, dry-type transformer has a voltage rating of 600-208Y/120 V. The voltage applied to the…

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