Question

A 60 Hz 20KVA 8000/240 Vrms transformer has the equivalent circuit parameters given in the table below, a) For the rated loade) Find the core loss in Watts. Answer: Check f) Find the power efficiency for the transformer for a rated load having a lagg

0 0
Add a comment Improve this question Transcribed image text
Answer #1

S= 20KVA E, = 8000 V 240 O:03 E, Bood 240V Secondary patamet esp hefernad to promane are ag fallocy 0.02 R2 22.222 0O15 166.०३न१৭--२१-3१° + २5 -368 ০u১ ২-६1३-1-40-86 । এ %3D oo&.० +-২-৭ -4০৪6३(15+3(३०) ३ ৪55५34 34४ V . १w = (২-নs +(&5» 2৪-24.2 (২ ৭২Fos Approximate esuivalet Circcet Ri+ R2 = 15+ 0.02 37.222n Rol O.03 X + x = 120 + 286.6672 0.0g j286-C67 34-2222 Ro1 3XM j30

Add a comment
Know the answer?
Add Answer to:
A 60 Hz 20KVA 8000/240 Vrms transformer has the equivalent circuit parameters given in the table...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • a) Find the magnitude of the input voltage in (V): A 60 Hz 20kVA 8000/240 Vrms...

    a) Find the magnitude of the input voltage in (V): A 60 Hz 20kVA 8000/240 Vrms transformer has the equivalent circuit parameters given in the table below; Primary resistance econdary resistance Primary leakage reactance Secondary leakage reactance Magnetizing reactance Ri R2 X1 = wL1 X2 = wL2 Xm = wLm 15 12 0.02 S2 120 12 0.15 12 30 kN2 Core-loss resistance 200 kS2

  • Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Prima...

    Help me answer c and d Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Primary resistance-1562, secondary resistance-0.02 Ω Primary leakage reactance-140Q, Secondary leakage reactance-0.15Q, Magnetising reactance 30 k2, Core loss resistance 200 k2 (a) The transformer is connected to two loads in parallel. The first load is 10 kW at 0.866 power factor lagging and the second load is 15kVA with a power factor of 0.8 lagging. Find the percentage regulation and...

  • Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Prima...

    Please show full working Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Primary resistance-1562, secondary resistance-0.02 Ω Primary leakage reactance-140Q, Secondary leakage reactance-0.15Q, Magnetising reactance 30 k2, Core loss resistance 200 k2 (a) The transformer is connected to two loads in parallel. The first load is 10 kW at 0.866 power factor lagging and the second load is 15kVA with a power factor of 0.8 lagging. Find the percentage regulation and power efficiency...

  • three-phase transformer is rated at 12 kV/135 kV, 100 MVA. It has the following equivalent circuit...

    three-phase transformer is rated at 12 kV/135 kV, 100 MVA. It has the following equivalent circuit parameters (referred to the primary winding where appropriate) : • primary resistance R1 = 0.03 ohms, secondary resistance R2’ = 0.04 ohms • primary leakage reactance X1 = 0.1 ohms, secondary leakage reactance X2’ = 0.1 ohms • magnetising reactance XM = 16 ohms, core-loss resistance RC = 200 ohms. In your calculations, you should use the simplified equivalent circuit. i) The transformer is...

  • 4. The figure below shows the equivalent circuit of a 2400/240-V, 60-Hz transformer. The high-side leakage...

    4. The figure below shows the equivalent circuit of a 2400/240-V, 60-Hz transformer. The high-side leakage impedance is (1.2+j 2.0) 2. the low-side leakage impedance is (0.012 ti 0.02) S2, and Xm at the high-side is 1800 2. Neglect the Hysteresis and Eddy current loss resistance Rhe Calculate the input voltage if the output voltage is 240 V (rms). Given the load resistance is 1.5 12 and the power factor is 0.8 (lagging). ཉིས་པ་དེ། དེ་ | ༼ ། ༼། །

  • Q1 A single-phase 11/2.2 kV, 22 kVA transformer has the following parameters all referred to the HV side RI 0.4, X 0...

    Q1 A single-phase 11/2.2 kV, 22 kVA transformer has the following parameters all referred to the HV side RI 0.4, X 0.602, R2 7.5 , X2 22 , Re 2500 , and Xm - 20002 The transformer is supplying 80% of its rated load at a power factor of 0.87 power factor lagging and at its rated voltage. Calculate (a) the efficiency of the transformer, (b) the power losses on the primary side (the copper loss and core loss), and...

  • Problem (1): A 15-KVA, 2400:240-V, 60 Hz transformer has the following equivalent circuit parameters: R =...

    Problem (1): A 15-KVA, 2400:240-V, 60 Hz transformer has the following equivalent circuit parameters: R = 2.522 R2 = 0.02522 Xi = 722 X = 0.0712 Re = 32 kl Xm = 11.5 k12 If the transformer is supplying a 10-kW, 0.8 PF lagging load at rated voltage, assuming the output voltage is the reference, draw the transformer's exact equivalent circuit referred to the primary (H.V) side and use it to calculate: 1. The input current 2. The input voltage...

  • (a) Describe the tests carried out on a single-phase transformer to determine its equivalent circuit parameters...

    (a) Describe the tests carried out on a single-phase transformer to determine its equivalent circuit parameters and explain how each parameter is determined based on the test results. (b) A 2200/220 V, 15 kVA, single phase transformer has the following equivalent circuit parameters: The HV winding resistance and leakage reactance are 0.2Ω and 0.3Ω respectively. The LV winding resistance and leakage reactance are 0.012Ω and 0.03 Ω respectively. The magnetic circuit resistance and reactance referred to the HV side are...

  • A 200 kVA, 7200/600 V, 60 Hz transformer is operating at rated load and 0.9 p.f....

    A 200 kVA, 7200/600 V, 60 Hz transformer is operating at rated load and 0.9 p.f. lagging. The core loss, winding resistances and leakage reactances, expressed in per unit are 0.0056, 0.0133 and 0.0557 respectively. Determine: a) The efficiency. b) The voltage regulation. c) The efficiency and regulation at 0.3 load and 0.8 p.f. lagging. A 200 kVA, 7200/600 V, 60 Hz transformer is operating at rated load and 0.9 p.f. lagging. The core loss, winding resistances and leakage reactances,...

  • QUESTION 3 A 200 - MVA, 15/200 kV single-phase power transformer has a per – unit...

    QUESTION 3 A 200 - MVA, 15/200 kV single-phase power transformer has a per – unit resistance of 1.2 percent and a per-unit reactance of 5 percent (data taken from the transformer's nameplate). The magnetizing impedance is impedance is j80 per unit. a. Find the equivalent circuit referred to the low-voltage side of this transformer. b. Calculate the voltage regulation of this transformer for a full-load current at power factor of 0.8 lagging. c. Assume that the primary voltage of...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT