The primary and secondary windings of a 40 kVA, 6600/250 V single-phase two-winding transformer have resistances of 10 Ω and 0.02 Ω, respectively. The leakage reactance of the transformer referred to the primary is 35 Ω.  Calculate the percent full-load regulation at unity power-factor. Neglect the no-load current

Q: A short circuit test on 15kVa, 2400/240V, 60Hz transformer yields the following results: 6.25A, 132V…

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Q: Exercise 2 Determine the voltage drop through a 120KVA, 3300-400Y V, three-phase transformer having…

A: The solution is given below

Q: 2) The following no-load results are obtained at the excitation branch of a 10, 20 kVA, 2400/240 V,…

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Q: 1) An ideal transformer, connected to a 240V mains supplies 12V, 150W lamp. Calculate the…

A: As per our policy, i have attempted 1 question. 1)  Given V1=240 voltsV2=12 volts Calculating turn…

Q: Consider a single phase transformer with primary and secondary turns of 1000 and 200 respectively…

A: Given:R1=10.5ΩR2=2.5ΩX1=12.5ΩX2=2.5ΩRm=15.55KΩXm=10KΩK=1000200=5

Q: A 150 kVA, 2400/240V, single phase transformer has the following circuit model parameters: R¡ = 0.2…

A: As per the information given in the question the circuit will be,

Q: (d) A step-down transformer is rated 10KVA, 7500/250 V and has the following equivalent circuit…

A: In this question,  We need to determine the equivalent winding impedance referred to the high…

Q: a  200kVA, 4000V/2000V, 50Hz single-phase transformer has 100 secondary turns. The transformer…

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Q: The maximum efficiency at Full-load and Unity power factor of a 1-phase, 25 kVA, 2000/1000V, 50Hz…

A: At maximum efficiency, iron loss = copper loss Output power at full load = kva rating * power factor…

Q: Consider a 4.5-kVA, 500/200 V single-phase transformer supplying full-load current at 0.8 lagging…

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Q: The equivalent circuit of a 22KVA, 11700/520 V, 60HZ, single-phase loaded transformer when referred…

A: In this question we need to find a voltage regulation of the given transformer.

Q: A 10 kVA, 1000 V / 200 V, 50 Hz, single phase transformer has HV and LV sidewinding resistances as…

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Q: Problem 4 A single-phase, 10KVA, 2200/220V transformer has the following parameters: R1=4.0 N,…

A: GIVEN:              KVA…

Q: Question 1. The primary side-reduced equivalent circuit parameters of a three-phase Δ/Δ connected 50…

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Q: A 220/400 V, 10 KVA, 50 Hz, single phase transformer has copper loss of 120 W at full load. If it…

A: η  x ​   =  xkVA×100×cosϕ xkVA×100×cosϕ+Pi+x2Pc​×10098 = 1x10x1000x11x10x1000x1+Pi+1x1x120 x 100Pi =…

Q: 43. A 250KVA, 2000/400V, single phase transformer achieved its variable loss equal to its fixed loss…

A: Given information about a single phase transformer: Rated power S=250 KVA. The induced EMF ratio is…

Q: A 10 kVA, 200/400 V, 50 Hz, single-phase transformer gave the following test results: Open Circuit…

A: Wi=120 WWcu=200 W

Q: QI/A 100-kVA distribution transformer has a maximum efficiency of 98 % at 50 % full- load and unity…

A: TRANSFORMER: The transformer transfers power from one circuit to another circuit without a change…

Q: ) An ideal transformer, connected to a 240V mains supplies 12V, 150W lamp. Calculate the transformer…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: The equivalent circuit of a 22KVA, 11700/450 V, 60HZ, single-phase loaded transformer when referred…

A: The given data in the question are: 22KVA, 11700/450V, 60Hz,VS=450V, IS=37.037∠25.84°A The rated…

Q: 15-kVA, 2400:240-V, 60-Hz, single-phase transformer has the following circuit parameters expressed…

A: According to given diagram, all parameters are given but only load current is asked. So the…

Q: 1. A 30KVA, 6000/230V, 50Hz single phase transformer has HV and LV winding resistances of 10.2Ω and…

A: Given information about a single phase transformer is, Rated output power S=30 KVA. Induced EMF…

Q: 2. A 50-kVA distribution transformer has full-load efficiency at 1.0 power factor of 96%, the copper…

A: Given data, Rating of transformer S =50 KVA Efficiency η=96% Copper loss Pcu=Iron loss Pi Power…

Q: (b) Mr. Musa Al Biruni is analyzing a 100 kVA, 60 Hz, 7200-480V, single phase transformer, which has…

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Q: The following test results were obtained on a 50 kVA transformer: Open-circuit test: Vp = 3300 V; V,…

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Q: Power transformer A, has Rated power of 150MVA. Line voltage of 330/66 kV Frequency=50Hz Connection…

A: Active Power across the Load = Apparent Power ×power factor ---- 1) Putting value in equation -1)…

Q: A 125 kVA transformer having a primary voltage of 2200 V at 50 Hz has 182 primary turns and 40…

A: As per the guidelines of Bartley we supposed to answer first question only since both question are…

Q: Question 1 A 132/33 kV 250 MVA single-phase step-down transformer has the following parameters: R1 =…

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Q: 47. A 150-kVA single-phase transformer has a core loss of 1.5 kW and a full-load Cu loss of 2 kW.…

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Q: The parameters of a 1000/250V, 50HZ single phase transformer are: R1=1.3 N, X1=2.8 N, R2=0.11 N,…

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Q: Q/ 30-kVA, 2200/220-V, 50-Hz distribution transformer is tested for efficiency and regulation as…

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Q: A 2.5 kVA, 200V/40V single-phase transformer has the primary resistance and reactance of 3 and 12 Q,…

A: Transformer:  Transformer is a static electrical device which transfers power from one circuit to…

Q: The following test results were obtained on a 50 kVA transformer: Open-circuit test: V, = 3300 V; V;…

A: According to question: The turn ratio of transformer is calculated as ∵a=VpVs⇒a=3300415⇒a=7.951 Now…

Q: A single coil 800 turns instrument transformer, operating in the step-downs mode with a 25 percent…

A: Turns ratio of auto transformer =  Primary turns/ secondary turns current in load = Load volt…

Q: A transformer having a nameplate rating of 30kVA, 4160/230V, single phase, 60hz with an equivalent…

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Q: A three phase , 110 kVA ,50 Hz , 3300/420.89 V , delta-star transformer. The transformer has a…

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Q: A 13,800/138 volt, 60Hz, 25KVA transformer is designed to have an induced e.m.f. of 4 volts per turn…

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Q: Q2) A 1.5 KVA, 220/110V, single-phase transformer has the following test data: Open circuit test:…

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Q: Nominal tests 50 kVA, 20,000 / 480 V, 60 Equivalent of single phase transformer in Hz to determine…

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Q: A 15 kVA, 6000/415 V transformer is to be tested to determine its excitation branch components, its…

A: As per the guidelines of Bartley we supposed to answer first three subpart only for solution of…

Q: The equivalent circuit of a 22KVA, 11700/520 V, 60HZ, single-phase loaded transformer when referred…

A: Vpa= Vs + voltage drop in secondary. Total losses=Is2*Rs+(Vpa)2Rsh. Efficiency=output poweroutput…

Q: A 40KVA, 1200/80V, 60HZ, single-phase transformer is tested at full-load and the following results…

A: The core loss is independent of load connected to the transformer. At any load the core loss is…

Q: Q1. The equivalent resistance and equivalent reactance (high side) for a 37.5 kVA, 2400-600 V, 60 Hz…

A: Given transformer with37.5 KVA,2400/600 v,60 HzEquivalent resistance and reactance referred to…

Q: Mr. Musa Al Biruni is analyzing a 100 kVA, 60 Hz, 7200-480V, single phase transformer, which has the…

A: From the given data IP=SEP=100×1037200=13.88 AIs=SEs=100×103480=208.3 A The equivalent circuit will…

Q: 2. A 1-kVA three phase transformer has 500 turns on the primary and 100 turns on the secondary…

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Q: Q1// A 150 kVA, 2400/240V, single phase transformer has the following circuit model parameters: R¡ =…

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Q: The exciting curent of a lø, 10 kVA, 2200/220 V, 60 Hz transformer is 0.25 A when measured on the…

A: Let the base values are, Pbase=10000 VAVbase,H=2200 V=1 pu Vbase,L=220 V=1 pu  The value of the…

Q: The equivalent circuit of a 22KVA, 11700/520 V, 60HZ, single-phase loaded transformer when referred…

A: In the transformer,  Percentage voltage regulation  Secondary current is given and series impedance…

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.