ZuoTi.Pro
Question

[29] SECTION B: TRANSFORMERS QUESTION 2 2.1 A 240:48-volt, 50-F power factor of 0.8 lagging. If the no load current and iron
2.2.2 2.2.3 2.2.4 225 EMM2602/101/3 The voltage that must be applied to the H.V. side when the L.V. side is short circuited,
engineering   Electrical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

941 sol) 240148 it-s0H2) 1 – 10 (A) , pf = 0.8 logging &- Cont(0.8)= -36.85 No wad current INL 0.12 (A) 12(W) =P Iron loss ruIp- 24-3618607 Gold 2-73° ape 2.14 <-39,55ºCA) 2.2) 301) 3=250 (KVA), 50, (H2), 1200/230 (0) Z1 = (0.0u tjonin ng 22. 6-001422.2.3) 12.00 Vbase Tharpe 25. 76CM base 208.33 Zer (p.4) 0.243 = 0.0422 P. 4) 5.16 Percentage impedance - 4022 s. (en) 2.2.4)1.6310 x0.85 + 3.89 t. sin (31.08) 1.R - 3. 434 R.M) = 0.03 43 R.). R voltage drop from source to load R X 230 Cul = 0.0343x2

0 0
Add a comment
Know the answer?
Add Answer to:
[29] SECTION B: TRANSFORMERS QUESTION 2 2.1 A 240:48-volt, 50-F power factor of 0.8 lagging. If...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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 1200 kVA, 11/3.3 kV, 50-Hz, three phase Dyn 11 transformer is subjected to both the...

    A 1200 kVA, 11/3.3 kV, 50-Hz, three phase Dyn 11 transformer is subjected to both the open, and short circuit tests, yielding the following results: OPEN CIRCUIT TEST SHORT CIRCUIT TEST Vsupply = 3.3 kV Vsupply = 650 V Io = 7.3 A Isc = 54.4A Po = 6.71 kW Psc = 8.89 kW Determine: 1.1 The no load current per phase, in RECTANGULAR form, referred to the H.V. side. (5) 1.2 How would you know, without being told, that...

  • The short-circuit test readings for a 50-kVA 2400:240-V transformer are 48 V, 20.8 A, and 617...

    The short-circuit test readings for a 50-kVA 2400:240-V transformer are 48 V, 20.8 A, and 617 W, with the instruments located on the high-voltage side and the low-voltage side short- circuited. An open-circuit test with the low-voltage side energized gives instrument readings on that side of 240 V, 5.41 A, and 186 W. 1. Calculate the equivalent parameters of the transformer as referred to the high-voltage side. 2. Draw the equivalent approximate circuit of that transformer referred to the high...

  • 1) A single-phase 50-kVA, 2400/240 volt, 60 Hz distribution transformer is used as a step-down tr...

    1) A single-phase 50-kVA, 2400/240 volt, 60 Hz distribution transformer is used as a step-down transformer at the load end of a 2400-volt feeder whose series impedance is (1.0+2.0) Ω. The equivalent series impedance of the transformer is (10+j25) Ω referred to the high voltage (primary) side. The transformer is delivering rated load at 0.8 power factor lagging and at rated secondary volitage. Neglect the transformer exciting curent. Using the transtormer raltings as base quantities work this problem in per...

  • a) Discuss the main role of per-unit systems. (CO3:P01 - 3 marks) b) A single phase...

    a) Discuss the main role of per-unit systems. (CO3:P01 - 3 marks) b) A single phase two winding transformer rated at 20 kVA, 415/230 volts 50 Hz is subjected to open and short circuit test. Table Q3 (a) summarize the results of the test; Table Q3 (a) Open Circuit Test 12 = 12 A P2 = 200 W Short Circuit Test V1 = 35 V P1 = 300 W I. Based on the short circuit test, determine the equivalent series...

  • please answer 13.16 at rated load of unity power factor and rated terminal voltage, determine efficienc...

    please answer 13.16 at rated load of unity power factor and rated terminal voltage, determine efficienc including field rheostat loss. Ans. 93.139 13.11 A generator under test is rated at 100 KVA, 3-phase, 60-Hz; 2,400 volts. (a) If driven b a de motor unexcited, the motor output is 1.26 KW. (b) If driven by a de motor, generato on open circuit and excited to generate rated potential, the motor output is 2.5 KW. ( Ifdriven by a de motor, generator...

  • Question 2 A single-phase transformer has the following nameplate ratings: 100 kVA, 7200/240 V and 60...

    Question 2 A single-phase transformer has the following nameplate ratings: 100 kVA, 7200/240 V and 60 Hz. The following results are obtained from open-circuit and short-circuit tests: Test Open-circuit Short-circuit Voltage 7200 V 250 V Current 0.65 A 13.89 A Real Power Input 425 W 1420 W a) Determine the parameters of this transformer, all referred to the primary side. b) The secondary of this transformer is connected to a load that draws 100% of the rated power at rated...

  • A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which...

    A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary voltage. b) load impedance. c) load impedance referred to the primary. d) the real and reactive power supplied to the primary winding

  • 3.4 A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load,...

    3.4 A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary wind- ing, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: (a) primary voltage, (b) load impedance, (c) load impedance referred to the primary, and (d) the real and reactive power sup- plied to the primary winding.

  • 3.10 A 240/120 V, 4.8 kVA, 60 Hz, single-phase transformer is used to supply a 4.8...

    3.10 A 240/120 V, 4.8 kVA, 60 Hz, single-phase transformer is used to supply a 4.8 kVA resistive load (i.e., the load has a power factor of 1.0) at rated voltage of 120 V a) If you assume the transformer is ideal, what would be the magni- tude of the expected primary side (240 V side) current? b) Again, if you assume the transformer is ideal, what is the apparent impedance of the load viewed from the high-voltage side of...

  • Rework problem 3.4 if the load connected to the 240-V secondary winding absorbs 110 kVA under...

    Rework problem 3.4 if the load connected to the 240-V secondary winding absorbs 110 kVA under short-term overload conditions at an 0.8 power factor leading and at 230 volts. Reference of problem 3.4 A single phase 100-kVA 2400/240-volt 60 Hz distribution transformer is used as a step down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 60kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary...

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