A 246 kVA transformer has a primary winding resistance of 0.55 and a secondary winding resistance of 0.002 Q. The iron loss is 3 kW and the primary and secondary voltages are 4 kV and 245 V respectively. If the power factor of the load is 0.85,then determine the efficiency of the transformer on 25 % load.

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Q: 300kVA transformer has primary and secondary winding resistances of 0.5Ω, and 0.0015Ω respectively.…

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Q: A 20-ohm resistance is connected across the secondary winding of a single-phase power transformer…

A: Given:-Secondary voltage,V2=150vResistance is connected across secondary winding,∴R2=20ΩSupply…

Q: Find the efficiency of a 150 kVA transformer at 25 % full load at 0.8 p.f. lag if the copper loss at…

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Q: A transformer takes a No load current of 0.76 A and power factor of 0.179 lag, when its primary is…

A: To analyze and calculating the parameter of the transformer, it is advised to draw an equivalent…

Q: The single-phase transformer in the following figure has a load voltage Zl of 120 Vrms. If the load…

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Q: Compute the copper losses at full load if a 500KVA transformer has 90% efficiency at both half-load…

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Q: A 400 kVA transformer has a primary winding resistance of 0.5 2 and a secondary winding resistance…

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Q: The single-phase transformer in the following figure has a voltage on the Zl load of 120 Vrms. If…

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Q: Consider a 100 kVA, 2400/240 V single-phase transformer that must be connected as an autotransformer…

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Q: A 10-kVA, single-phase transformer has its primary connected to a 2000-V supply. It has 60 turns on…

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Q: 1-A single phase transformer with a ratio of 6600 400 V takes to no-load current of 0-7 A at 0-24…

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

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Q: At the end of a one-phase supply line with a series impedance of 1+j2 ohms, a 50 kVA, 2400/240 volt,…

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Q: A 260 kVA transformer has a primary winding resistance of 0.35 Q and a secondary winding resistance…

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Q: A transformer takes a No load current of 0.29 A and power factor of 0.405 lag, when its primary is…

A: Given,  No load current (Io)= 0.29 A No load power factor= 0.405 lagging No load supply voltage…

Q: Homework 01: A 400-kVA transformer has a primary winding resistance of 12 and a secondary winding…

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Q: A 30 KVA, 24000/220 V, Y A connected transformer bank is operated at full load with an efficiency of…

A: Given S =30 KVA  V1 =24000∠0° VV2 =220∠-5.77° V Efficiency η =96% Voltage regulation =11% Primary…

Q: A) A single-phase transformer with a ratio of 440/110-V takes a no-load current of 5A at 0.2 power…

A: In the single phase transformer. What is primary current Ip = Io + IS '  Where Is' is secondary…

Q: A 400-kVA transformer has a primary winding resistance of 12 and a secondary winding resistance of…

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Q: A 298 kVA transformer has a primary winding resistance of 0.65 N and a secondary winding resistance…

A: Disclaimer:  Since you have asked multipart questions, we will solve the first three subpart for…

Q: A single-phase transformer rated 55 KVA is connected to 400/230 V,49.5HZ supply, has an efficiency…

A: The solution can be achieved as follows.

Q: (c) In a 25 KVA, 1000/400 V, 1- o transformer, the core loss and full load copper losses are 200 W…

A: Efficiency = (output power/input power )×100. Input power = output power + iron losses + copper…

Q: A 220 / 400 V, 7.5 KVA, 50Hz single phase transformer has a full load copper loss of 110 W.…

A: A 220 / 400 V, 7.5 KVA, 50Hz single phase transformer has a full load copper loss of 110 W.…

Q: A 1-ph transformer 25kVA, 330/110V, 50Hz, Req2 = 0.04522 and Xeq2 = 0.0650 draw the Kapp regulation…

A: Single Phase Transformer:  An electrical device that accepts single-phase alternating current and…

Q: 2- Find the efficiency of a 150 kVA transformer at 25 % full load at 0.8 p.f. lag if the copper loss…

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Q: A 800 kVA transformer has a primary winding resistance of 0.8Ω and a secondary winding resistance of…

A: In the question A 800 kVA transformer primary winding resistance 0.8Ω  secondary winding resistance…

Q: A transformer rated at 1000 kVA is operating near capacity as it supplies a load that draws 900 kVA…

A: According to the question, we have to find, real power delivered to the load and how mu ch…

Q: A 1-ph transformer 25kVA, 330/110V, 50Hz, Req2 = 0.0452 and Xeq2 = 0.06592 draw the Kapp regulation…

A: Single Phase Transformer: A single phase transformer is a transformer that uses only one phase of…

Q: Problem 2 A 23-kVA, 2300/230-V, 60-Hz, step down transformer has the following resistance and…

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Q: 10. The primary and secondary winding of a 50 kVA, 6600/220 V transformer have resistance of 7.8 ohm…

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Q: 1. Find the all-day efficiency of a transformer having maximum efficiency of 96% at 30-kVA load at…

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Q: A 10KVA single-phase transformer provides a no-load secondary voltage of 110 volts. If the…

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Q: A three-phase Δ-Δ transformer is used to step down a line voltage of  625 kV, to supply a plant…

A: Note: As per the rules we can answer only 3 sub-parts, please post the remaining sub-parts as the…

Q: A 4160.240 V single-phase 60 Hz transformer is rated for 95 kVA. It is determined that at full load…

A: Find the efficiency of the transformer.  If iron losses and copper. Losses are given Power factor…

Q: A 200 – kVA transformer with impedance of 5 percent and the power factor of the load is 85 percent.…

A: Given, A transformer with KVA rating, S=200 kVA Impedance, Z=5% Power factor, cosϕ=85%=0.85 Primary…

Q: A 258 kVA transformer has a primary wihding resistance of 0.7 Q and a secondary winding resistance…

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Q: Determine the efficiency of a 150 kVA transformer at 50% of full load and 0.8 power factor lagging…

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Q: A 40-kVA transformer has iron loss of 450 W and full-load Copper loss of 850 W. If the power factor…

A: Given, kVA rating of transformer, S=40 kVA Iron loss, Pi=450 W Copper loss, Pcu=850 W Power factor,…

Q: A 600 kVA transformer has a primary winding resistance of 0.60 and a secondary winding resistance of…

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Q: A single-phase transformer rated 65 KVA is connected to 400/235 V,50HZ supply, has an efficiency of…

A: The solution can be achieved as follows.

Q: Q/ A 600 kVA, 1-ph transformer has an efficiency of 92 % both at full-load and half-load at unity…

A: Given,  A 600 KVA ,1-ph transformer has, Efficiency at full load and half load at  is 92% and unity…

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: Q29. A 800 kVA transformer has a primary winding resistance of 0.8Ω and a secondary winding…

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Q: A single-phase ideal transformer is rated at 1OKVA, 240V/120V. Calculate the following: a. Rated…

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Q: 9. A 10-kVA, 2000/400-V, single-phase transformer has resistances and leakage reactances as follows:…

A: Given, Primary voltage, V1 = 2000 V Secondary voltage, V2 = 400 V So, transformation ratio,…

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

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.