A 800 kVA transformer has a primary winding resistance of 0.8Ω and a secondary winding resistance of 0.003 Ω. The iron loss is 2.8 kW and the primary and secondary voltages are 4.5kV and 310V respectively. If the power factor of the load is 0.84 determine calculate the efficiency of the same transformer for one third of the load

Q: 17.a. A power transformer with standard insulation class of 69 kv will withstand an rms test voltage…

A: Solution of question (17.a): Four options are given, we need to choose the correct option for the…

Q: Open Circuit test: 3000 V 0.5 A   350 W;   Short Circuit test: 150 V 10 A 500 W   Calculate…

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Q: At full-load, the Cu and iron losses in a 100-kVA transformer are each equal to 2.5 kW. Find the…

A: The solution is given below

Q: If the supply frequency of the transformer increases, the secondary output voltage of a transformer.…

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Q: 6. Solve the turns ratio of a three-phase transformer to transform 10,000 kVA from 230 kV to 4160 V…

A: In this question we will find turn ratio for different combinations of transformers .....

Q: 3- At full-load, the Cu and iron losses in a 100-kVA transformer are each equal to 2.5 kW. Find the…

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Q: Two tests were performed on a 40-kVA transformer to predetermine its efficiency. The results were:…

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Q: A 248 kVA transformer has 429 turns on the primary and 110 turns on the secondary. The primary and…

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Q: A 25 KVA transformer is constructed to a turns ratio of N1/N2 = 10. The impedance of primary winding…

A: Given, A transformer has S=25 kVAN1/N2=10Z1=3+j5 ΩZ2=0.5+j0.8 Ω

Q: A 250 kVA transformer has a primary winding resistance of 0.25N and a secondary winding resistance…

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Q: (c) A 50 kVA, 2300 V/460 V transformer has a primary winding resistance and reactance of 3.5 N and…

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Q: 45 The 110V output of a transformer is applied to a 220 resistive circuit, causing, 0.22Amps to flow…

A: Given: Secondary voltage, V2=110 V Resistive load at secondary, R2=22 Ω Primary current, I1=0.22 A

Q: A 600 kVA transformer has iron 3 points losses of 400 kW and copper losses of 500 kW. Its kVA rating…

A: In this  question,  we have  to find  KVA  rating  of transformer  for the maximum  efficiency,Data…

Q: In a 80 KVA, 2000/200 V power transformer, the iron and full load copper losses are 150 W and 400 W…

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Q: -V 50-Hz distribution transformer is tested for efficiency and regulation as follows OC. test( Low…

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

Q: A 250 transformer has primary and secondary winding resistances of 0.6Omega , and 0.00151…

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Q: A transformer has a turn ratio of 15:1. If the primary voltage is 7.2KV line-to-line, the primary…

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Q: A)The primary and secondary windings of a 500 kVA transformer have resistances of 0.42 2 and 0.0019…

A: Note: As per our guidelines, we are supposed to answer only one question. Kindly repost the other…

Q: 6) A 25 KVA transformer supplies a load of 12 KW at a power factor of 0.6 lagging. If additional…

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Q: 5. A 150 kVA transformer has iron-loss of 1-4 kW and full-load copper loss of 2-8 kW. Calculate (1)…

A: Given data, The value of the rating of the transformer is 150kVA. The value of the iron loss is…

Q: A 25 KVA transformer supplies a load of 12 KW at a power factor of 0.6 lagging. If additional unity…

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Q: A transformer takes a current of 0.9 A and power absorbed 82 W, when its primary is connected to a…

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Q: 1.The secondary line to line voltage of a star-delta connected transformer is measured to be400 V.…

A: Given line to line voltage at secondary is 400 V The turn ratio is 2:1

Q: Assume the below transformer is an ideal transformer. The secondary is connected to a lo of 10430°.…

A: In this question , we will find transformer voltages and currents...

Q: 20Kva , 2000/200V single-phase transformer has a primary resistance of 1.8Ω and secondary resistance…

A: In this question we will find copper losses in transformer .....

Q: A 25 KVA transformer supplies a load of 12 KW at a power factor of 0.6 lagging. Find the percentage…

A: A 25 KVA transformer supplies a load of 12 KW at a power factor of 0.6 lagging. S=25 KVAP=12…

Q: 1. A 50 kVA, 6360/240 V transformer gave the following test results : S.C. test: Voltage across…

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Q: Draw the graph of efficiency against load current when the transformer is loaded 12:48 PM

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Q: 10. A 50 kVA transformer has an efficiency of 98% at full-load, 0.8 pf and an efficiency of 96.9% at…

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Q: At full load, the Cu and iron losses in a 100-KVA transformer are each equal to 2.5 KW. Find the…

A: Given, At Full load, 100 KVA Pcu=Pi=2.5 KW

Q: 400 V / 2400 V single phase transformer is supplied with a primary current of 20 A, then the rating…

A: In this we will find rating of transformer..

Q: The primary and secondary winding of a 26 kVA transformer has 400 turns and 40 turns, respectively.…

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Q: A 300 kVA transformer has a primary winding resistance of 0.4 0 and a secondary winding resistance…

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Q: A 2 kV / 289 V transformer has the secondary turns of 27. The number of Primary turns of a…

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Q: 3. A 50 kVA single-phase transformer has a full load copper loss of 560 W and an iron loss of 500 W.…

A: Efficiency = output power / output power + total losses. Total losses = iron loss + cupper loss.…

Q: 21. The following figures were obtained from tests on a 30-kVA, 3000/110-V transformer: O.C. test:…

A: Efficiency = output power/ (output power ×iron loss + cupper loss). Active power = apparent power…

Q: Q/ The primary resistance of a 440/110-V transformer is 0.5 Q and the secondary resistance is 0.04…

A: A 1-ph  440/110 Volts transformer has, Primary resistance (R1)= 0.5 ohm Secondary resistance (R2)=…

Q: Calculate the all-day efficiency of a 100-kVA transformer operating under the following conditions:…

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Q: Determine the necessary transformer turn ratio for transferring maximum power to a 160 load from a…

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Q: 6. A 125 kVA transformer having a primary voltage of 2000 V at 50 Hz has 182 primary turns and 40…

A: In this question, =  Primary voltage Vp= 2000V Primary side , Number of turn N1= 182 Secondary side,…

Q: A 250 kVA transformer has a primary winding resistance of 0.250 and a secondary winding resistance…

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Q: A transformer takes a current of 0.9 A and power absorbed 82 W, when its primary is connected to a…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: A 16 Q resistance is connected across the secondary winding of a single-phase power transformer…

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Q: A 200 kVA transformer has a primary winding resistance of 0.292 and a secondary winding resistance…

A: Given that Primary  votage =2kV=2000vsecondary voltage=200vprimary resistance=0.292Ωsecondary…

Q: (c) A 50 kVA, 2300 V/460 V transformer has a primary winding resistance and reactance of 3.5 2 and…

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Q: A 310 kVA transformer has a primary winding resistance of 0.65 and a secondary winding resistance of…

A: we need to calculate I1, I2, PC and effciency at 75% load.

Q: A single phase 240/120V transformer has the following parameters. R = 10, R = 0.5N, X = 62, X, = 20,…

A: Hello. Since your question has multiple sub-parts, we will solve first-three sub-parts for you. If…

Q: A 100 kVA distribution transformer has an iron loss of 2.0 kW and a total load copper loss of 4.5…

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Q: Example 5 A 600 kVA transformer has a primary winding resistance of 0.62 and a secondary winding…

A: Given S=600 KVA R1=0.6 Ω R2=0.002 Ω Piron =2.6 kW V1=6 kVV2=330 V

Q: A 100 KVA transformer transformer has a maximum efficiency 97%, 1 pf and occurs at a load of 95 KVA.…

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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.