In a 3-Phase Transformer of 14.4 kV/400V with a power of 500 kVA, y/y connected, short circuit test power loss is 8.4 kW, open circuit test power loss is 5.4 kW. the power coefficient of the load connected to the secondere is cos22=3.2   a)Calculate the primary winding current (consider the primary winding power coefficient equal to the secondary winding power coefficient.cosɸ1=cosɸ2). b) calculate the yield.   Note: the digits are 3 after the comma. write up of households

Q: The S.C. test on a 1-phase transformer, with the primary winding short-circuited and 30 V applied to…

A: Given that  V1=200 VK=2:1=V2:V1V2=KV1=2×200            V2= 400VSecondary full load current  I2=10 A…

Q: 2. A single-phase transformer has a rating of 100KVA, 7200V/600V, 60HZ. a. If it is reconnected as…

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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: A 4 MVA, 66/13.2 Kv, 50 Hz. Delta star connected Three phase transformer has a primary resistance…

A: The current flowing in a circuit causes a voltage drop. The voltage drop should be within allowable…

Q: A 15-kVA, 2400/240-V, 60 Hz single phase transformer has the following equivalent circuit…

A: Given Data: R1 =2.5 ohmR2 = 0.0025 ohmX1 = 7 ohmX2 = 0.07 ohmRc = 32000 ohmXm = 11500 ohmLoad = 10…

Q: A 1-ph transformer 25KVA, 330/110 V, 50HZ, Req2 = 0.0452 and Xeq2 = 0.0652 draw the Kapp regulation…

A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…

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: 4.16 Consider a 50KVA, 2400/240 V, 60 Hz distribution transformer. Assume that the open-circuit and…

A: 50 KVA , 2400/240V ,60Hz distribution transformer, in which OCT and SCT is performed.

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: A single-phase transformer 100 kVA, 4400/240 V, has core loss 1080 Watt and copper loss at full load…

A: Efficiency = output power/ (output power +losses) And copper losses at any load = x2× full load…

Q: 1- A 1-phase transformer has 400 primary and 1000 secondary turns. The net cross sectional area of…

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Q: Q4:A/The primary and secondary windings of a 30 kVA 76000/230, V, 1-phase transformer have…

A: This question belongs to electrical machine . It is based on the short circuit test of 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: 2) Open circuit test is performed on a 1 ø , 15 kVA, 1200/240 V, 50 Hz transformer and the following…

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

Q: A 60HZ transformer having a 480 turn primary winding takes 80 W in power and 1.4 A in current at an…

A: No load power factor=power at noloadvoltage×current. EMF =4.44 frequency ×flux×primary turns.

Q: 2.2: The parameters of a 200/3000V, 50HZ single phase transformer are given below: R=0.018 N,…

A: (i) The equivalent circuit for the given problem is,

Q: A 10kVA 2000/400V single phase distribution transformer has a primary and secondary winding…

A: Given: S=10KVA, 2000/400V, Z1=0.5+j10 ohm Z2=0.2+j0.45 ohm pf=0.8 lag ⇒ϕ=36.86°

Q: (a) A 5 MVA 230/10.5-kV single-phase power transformer has a per-unit resistance of 1.5% and a…

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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: A 300-kVA, 3-phase, 60 Hz transformer has a voltage ratio (line voltages) of 33/11 kV and is…

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Q: 18 18. A short-circuit test was performed upon a 10-kva 2,300/230-volt transformer with the…

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

Q: A 500-kVA, 3-phase, 50 Hz transformer has a voltage ratio (line voltages) of 33/11 kV and is…

A:

Q: The efficiency of a 20 kVA 15.4 / 0.4 kV three-phase power transformer is 82,4% for a load with…

A: Given: Q=20KVAη=82.4%VHV=15400VVLV=400VVsc=30%Isc=30%STEP 1: Calculate rated current of…

Q: A 20 kVA, 220 V / 110 V, 50 Hz single phase transformer has full load copper loss = 200W and core…

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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: A 20-kVA 8000/480-V distribution transformer has the following resistances and reactances: R, = 32N…

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Q: A three phase transformer is used for ancillary services in a thermal power plant. It shows the…

A: transformation ratio = 20/6.6 = 3 for HV side of 18.5 kV, transformation ratio = 18.5/6.6 = 2.8 so,…

Q: Determine the transformer efficiency a) at full load and 0.8 power factor b) at half full-load and…

A: As per guidelines we are supposed to answer only first question if multiple questions are posted by…

Q: 33. The efficiency of a 400 kVA, 1-phase transformer is 98.77 % when delivering full load at 0.8…

A: Here we discuss about the efficiency calculations of transformer.   NOTE:- As in this 1 Q., 2…

Q: (a) The efficiency of a 320 KVA, single phase transformer is 98.5 % when delivering full load at…

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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: The efficiency of a 20 kVA 15.4 / 0.4 kV three-phase power transformer is 74,1% for a load with…

A: Given: The efficiency of a 20 kVA 15.4/0.4 kV three-phase power transformer is 74.1% for a load with…

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

A: Given data about the three phase delta-star connected transformer is: Emf induced in primary…

Q: A 5000-kVA 230/13.8-kV single-phase power transformer has a per-unit resistance of 1 percent and a…

A: (a) The open-circuit test was performed on the low-voltage side of the transformer, so it can be…

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 10-kVA, 450/120V, 50-Hz transformer has the following circuit parameters: R, = 0.12 n, R, = 8.533…

A: As per Bartleby guidelines, since you have posted a question with multiple sub-parts, we will solve…

Q: The efficiency of a 20 kVA 15.4 / 0.4 kV three-phase power transformer is 75,4% for a load with…

A: Here, Given data 3-ϕ power transformer, Pout=20 KVAVPri=15.4 kVVSec=0.4 kVη=75.4%PF=1 The Short…

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

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Q: Provide an analysis for the transformer mentioned below. The followings are the reading from the…

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

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

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Q: A 10-kVA, 440/3300-V, 1-phase transformer, when tested on open circuit, gave the following figures…

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Q: Q1) The parameters of the equivalent circuit for a 12 KVA, 120/480 V, 60 Hz transformer are, Ri-0.1…

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

Q: A 500-kVA, 3-phase, 50 Hz transformer has a voltage ratio (line voltages) of 33/11 kV and is…

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

Q: The efficiency of a 20 kVA 15.4 / 0.4 kV three-phase power transformer is 73% for a load with unity…

A:

Q: 2. A 4800/240-V, single phase transformer is rated at 10 kVA. It has an equivalent impedance…

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

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.