A transformer takes a current of 0.52 A, when its primary winding is connected to a 212V, 50HZ supply, the secondary being open circuit. If the power absorbed is 63 watts then the No load power factor is

A transformer takes a current of 0.52 A, when its primary winding is connected to a 212V, 50HZ supply, the secondary being open circuit. If the power absorbed is 63 watts then the No load power factor is

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.57P: A two-winding single-phase transformer rated 60kVA,240/1200V,60Hz, has an efficiency of 0.96 when...

See similar textbooks

Related questions

Q: A 205 /405 V, 10 KVA, 50HZ single phase transformer has a copper loss of 170 W at full load, unity…

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

Q: A transformer takes a current of 0.87 A, when its primary winding is connected to a 242V, 50HZ…

A: No load power to transformer = Voltage×current×power factor at noload Given no load power = 67 w…

Q: QI) A 5 KVA, 2300/230 50HZ transformer was tested for the iron losses with normal excitation and…

Q: A transformer takes a current of 0.75 A, when its primary winding is connected to a 196V, 50HZ…

A: The no load power factor is 0.44. The detailed solution is provided below.

Q: A 210 / 405 V, 6 KVA, 50HZ single phase transformer has a copper loss of 115 W at full load, unity…

A: In this question we will find output power and iron loss...

Q: A transformer takes a No load current of 0.21 A and power factor of 0.68 lag, when its primary is…

A: Given that I0=0.21 Acosϕ=0.68 lag

Q: A 25 Kva ,2500/250 V single phase transformer is designed to have a induced voltage of 2.5…

Q: A 225 / 430 V, 8 KVA, 50HZ single phase transformer has a copper loss of 105 W at full load, unity…

A: Given information are: Voltage Rating⇒VPrimary/VSecondary=225/430V Power Output of single phase…

Q: A 225 / 425 V, 8 KVA, 50HZ single phase transformer has a copper loss of 105 W at full load, unity…

Q: When a transformer takes a current of 0.8 A and its primary is connected to a 210 V, 50 Hz supply,…

A: Open circuit test

Q: 1. A 2000/200V, 20kVA transformer has 66 turns in the secondary. Calculate: (a) Primary turns (b)…

A: Given a 2000/200V , 20kVA transformer has 66 turns in the secondary .Here we have to find the…

Q: 18 Given a 100 kVA, 50 Hz power transformer. The maximum efficiency of the transformer is 98.0 %…

Q: A transformer having efficiency of 90% is working on 200 V and 3 kW power supply. If the current in…

Q: A 45KVA, single-phase transformer is tested on both open-circuit and short-circuit conditions,…

Q: A transformer takes a current of 0.32 A, when its primary winding is connected to a 222V, 50HZ…

A: Dear,as per company guidelines we can answer only one question at a time, kindly post other question…

Q: A 215 / 410 V, 6 KVA, 50HZ single phase transformer has a copper loss of 125 W at full load, unity…

A: 6kVA single phase transformer Copper loss =125W power factor =unity Find the output power Iron…

Q: A 235 / 415 V, 6 KVA, 50HZ single phase transformer has a copper loss of 130 W at full load, unity…

A: The solution can be achieved as follows.

Q: The efficiency of a 200 KVA, single phase transformer is 98.78 % when delivering full load at 0.8…

Q: A 235 / 430 V, 8 KVA, 50HZ single phase transformer has a copper loss of 135 W at full load, unity…

Q: A 225 / 430 V, 8 KVA, 50HZ single phase transformer has a copper loss of 100 W at full load, unity…

A: In this question we need to find a output power and iron loss of Transformer.

Q: A single-phase 400 kVA transformer has an efficiency of 99.13% at half load unity power factor…

Q: 2A given transformer rating may be specified as 2KVA, 200/50, 60HZ. In this case, answer the…

A: NOTE: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: A 20 KVA transformer has a maximum efficiency of 98% when delivering three quarter load at 1.0 pf.…

A: In this question we need to find a all day efficiency of the given transformer.

Q: 3. A 416 kVA single phase transformer has an efficiency of 96.6%, when delivering full load at 0.85…

A: In this question we will find iron loss and cu loss of transformer with given data...

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: A 220 / 425 V, 6 KVA, 50Hz single phase transformer has a copper loss of 160 W at full load, unity…

Q: A transformer takes a current of 0.39 A, when its primary winding is connected to a 210V, 50HZ…

A: Given Power absorbed = 63 watt, No load current I = 0.39 Amp Primary voltage = 210V To find no load…

Q: 2. A 20 KVA, 440 /220 V single phase 50 hz transformer has an iron loss of 324 W. The copper loss is…

A: In this question, Single phase transformer S= 20kVA , 440/220V Iron losses = 324W Copper loss at…

Q: A transformer takes a current of 0.36 A, when its primary winding is connected to a 224V, 50HZ…

A: In this question we will find no load power factor of transformer...

Q: A 215 / 425 V, 10 KVA, 50HZ single phase transformer has a copper loss of 185 W at full load, unity…

A: The output power of the transformer is given as: Po=VsIscosϕ Plugging the known values in the above…

Q: Problem: The primary current to an ideal transformer rated at 3300/110 V is 5 A. Calculate: A. the…

A: We need to analyse the given transformer .

Q: A 220 / 400 V, 10 KVA, 50HZ single phase transformer has a copper loss of 190 W at full load, unity…

Q: A 220 / 435 V, 10 KVA, 50HZ single phase transformer has a copper loss of 105 W at full load, unity…

Q: A 230/230 V, 3 kVA transformer gave the following results : O.C. Test : 230 V, 2 amp, 100 W S.C.…

A: Transformer : A transformer is a stationary device that transmits electrical energy from one circuit…

Q: A 50KVA, 500/1000V Y-Y Transformer has per phase R=40, X=50, R_= open circuit, X=120k0 refer to high…

A: A 50kVA,500/1000V Y-Y Transformer has per phase Req=4ohm,Xeq=5ohm,Rc=open circuit Xm=120kohm refer…

Q: A 242 KVA transformer has a primary winding resistance of 0.6 0 and a secondary winding resistance…

Q: (a) A 50-kVA, 400/2000 V, single-phase transformer has the following parameters: R1 = 0.02 N X1 =…

A: According to Bartleby question answer rules I have to solve only one question that's why I solve…

Q: A transformer takes a current of 0.49 A, when its primary winding is connected to a 234V, 50HZ…

A: Given that Primary side I = 0.49 A E = 234 v f = 50 Hz Po = 79 w

Q: In a 145 KVA, 2000/200 V power transformer, the iron and full load copper losses are 8O W and 440 W…

Q: A 210 / 430 V, 10 KVA, 50HZ single phase transformer has a copper loss of 140 W at full load, unity…

Q: A 210 / 435 V, 10 KVA, 50HZ single phase transformer has a copper loss of 150 W at full load, unity…

Q: In a 85 KVA, 2000/200 V power transformer, the iron and full load copper losses are 110 W and 320 W…

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

Q: A 11,000/6,600 V, 3 phase transformer has a star connected primary and a deltaconnected secondary.…

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

Q: The primary current to an ideal transformer rated at 3300/110 V is 5 A. Calculate: (a) the turns…

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: A 150 KVA transformer has an iron loss of 700W and a full load copper loss of 1800W. Calculate the…

A: Given: S=150 KVAPi=700 W=0.7 KWPcf=1800 W=1.8 KWcosϕ=0.85

Q: Calculate the percent voltage drop in a 500 KVA transformer having 2% resistance and 4% reactance…

Q: A transformer takes a current of 0.4 A, when its primary winding is connected to a 196V, 50HZ…

A: From given power we will find out the power factor in case of no load , Because given current is no…

Q: A single phase practical transformer rated 100 kVA, 12470 volts primary, 600V secondary has a…

A: The power consumed by resistance is given as: P=I2R=0.101×0.101×220×103=2.244 kW The kVAR rating is…

Concept explainers

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.

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A two-winding single-phase transformer rated 60kVA,240/1200V,60Hz, has an efficiency of 0.96 when operated at rated load, 0.8 power factor lagging. This transformer is to be utilized as a 1440/1200-V step-down autotransformer in a power distribution system. (a) Find the permissible kVA rating of the autotransformer if the winding currents and voltages are not to exceed the ratings as a two-winding transformer. Assume an ideal transformer. (b) Determine the efficiency of the autotransformer with the kVA loading of part (a) and 0.8 power factor leading.
A transformer takes a current of 0.88 A, when its primary winding is connected to a 194V, 50HZ supply, the secondary being open circuit. If the power absorbed is 68 watts then the No load power factor is
A single phase practical transformer rated 100 kVA, 12470 volts primary, 600Vsecondary has a current and resistance of 0.101 of 220 kΩ. Determine thereactive power in kVAR.
The maximum efficiency at Full-load and Unity power factor of a 1-phase, 25 kVA, 2000/1000V, 50Hz transformer is 98%. Determine its efficiency at 1/4th of full load
A 210 / 400V , 8KVA, 50Hz single-phase transformer has a copper loss of 155W at full load, unity power factor with an efficiency of 95%. Determine the output power and iron loss.
When a transformer takes a current of 0.8 A and its primary is connected to a 210 V, 50 Hz supply, the secondary being open circuited. If the power absorbed is 76 W, then the iron loss current is
A 20 KVA transformer has a maximum efficiency of 98% when delivering three quarter load at 1.0 pf. Determine the All-day efficiency of the transformer if it is loaded as follows: NL for 12 hrs; 12 kW, 0.8 pf for 6 hrs and 20 kW, 1.0 pf for 6 hrs.
A 20-ohm resistance is connected across the secondary winding of a single-phase power transformer whose secondary voltage is 150V. Calculate the primary voltage and the turns ratio if the supply current is 5A, neglecting losses.
A single-phase transformer that has 8000 turns in its primary winding is powered by a voltage of 160 Vac. Considering that there is no type of loss in the transformation process, it is correct to state that in the secondary winding, which has 4000 turns, the output voltage will be: answer:80Vca
The primary current to an ideal transformer rated at 3300/110 V is 5 A. Calculate: (a) the turns ratio, (b) the kVA rating, (c) the secondary current.
In a 30kVA, 2000/220V power transformer, the iron and full load copper losses are 400W and 450W respectively. Calculate the efficiency at unity power factor in half load condition.
1. A 48 kVA, 480V/240 V, single-phase transformer is to be used to power a load that operates at 240 V. The available supply voltage is 720 V, so it is reconnected as an autotransformer. What is the nominal power that the load can demand under this condition?