ZuoTi.Pro
Question

A feeder from a distribution transformer is 500m long. It consists of three wires having an...

A feeder from a distribution transformer is 500m long. It consists of three wires having an impedance of 0.052 + j0.069Ω/km and apparent power capacity of 190MVA. The three-phase load is balanced and draws 130 kW at 440V with a 60% lagging power factor. Determine the minimum kvar rating of capacitors capable of correcting the power factor to allow rated apparent power to flow in the feeder. What is the voltage regulation of the feeder?

engineering   Electrical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Request Professional Answer

Request Answer!

We need at least 10 more requests to produce the answer.

0 / 10 have requested this problem solution

The more requests, the faster the answer.

Request! (Login Required)

All students who have requested the answer will be notified once they are available.
Know the answer?
Add Answer to:
A feeder from a distribution transformer is 500m long. It consists of three wires having an...
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

Similar Homework Help Questions

  • Please show detailed steps. Thanks Problem # 1: Three Phase Power [35 points] A three-phase substation...

    Please show detailed steps. Thanks Problem # 1: Three Phase Power [35 points] A three-phase substation bus supplies three wye-connected three phase loads that are connected in parallel through a three-phase feeder with an impedance of 0.3 30 per phase Load 1 draws 75kVA at 0.866 lagging power factor, load 2 draws 45 kW at 0.70 leading power factor and load 3 draws 20 kVAR at 0.85 lagging power factor. The line-line voltage at the load is 460V Take the...

  • A 220 kW load having 0.8 lagging power factor is supplied from a 600 V (line to line) three-phase...

    A 220 kW load having 0.8 lagging power factor is supplied from a 600 V (line to line) three-phase supply. A bank of power factor capacitors is delta connected Q2. (a) Draw neat schematic diagram showing the connection of the capacitor bank in Delta connection. (b) Determine the kVAR rating of each individual capacitor needed to bring power factor to 0.9 (c) Determine the capacitance of each capacitor in μF.

  • A 220 kW load having 0.8 lagging power factor is supplied from a 600 V (line...

    A 220 kW load having 0.8 lagging power factor is supplied from a 600 V (line to line) three-phase supply. A bank of power factor capacitors is delta connected. (a) Draw neat schematic diagram showing the connection of the capacitor bank in Delta connection. (b) Determine the KVAR rating of each individual capacitor needed to bring power factor to 0.9. (c) Determine the capacitance of each capacitor in uF.

  • A three-phase Yy0 connected transformer has a nominal rating of 250 kVA and a voltage ratio...

    A three-phase Yy0 connected transformer has a nominal rating of 250 kVA and a voltage ratio 15:0.4 kV. After conducting the short-circuit test, where the secondary winding is short-circuited, it is found that the primary series resistance is 0.08 pu and the primary series impedance magnitude is 0.1pu. The effect of the parallel branch in the transformer’s equivalent circuit may be neglected. Explain what information ‘Yy0’ gives about the transformer. Draw the per-phase equivalent circuit of the transformer during the...

  • Q No.1: A 14,000/130-V, three-phase, ∆-Y transformer bank consists of three identical 100-kVA, 83l4/130-V transformers. It...

    Q No.1: A 14,000/130-V, three-phase, ∆-Y transformer bank consists of three identical 100-kVA, 83l4/130-V transformers. It is supplied with power directly from a large constant voltage bus. In the short-circuit test, the recorded values on the high-voltage side for one of these transformers are Vsc = 510V,     Isc = 12.6 A,        Psc = 3000 W (a) If this bank delivers a rated load at 0.8 PF lagging and rated Voltage, what is the line-to-line voltage on the primary of the...

  • Two balanced loads are connected to three phase supply via a feeder lines as shown below....

    Two balanced loads are connected to three phase supply via a feeder lines as shown below. The STAR load has a line voltage of 440 V, at 50 Hz. (Take 440/30% V as reference) F2 F2 F1 0.025 J0.142 B 0.0110 JO.05Ω Three Phase 65 kW Vi2 Load 2 Load 1 L1 DELTA PF = 0.72 440 30°V STAR Line Voltage LineVoltage | |Д|lagging Line Voltage STAR CONECTED Zo 2.80 + 13.270/Phase Determine: (i) The Line Current ; (ii) The...

  • A commercial office building is to be supplied service at 208Y/120 V from the utility company 12....

    A commercial office building is to be supplied service at 208Y/120 V from the utility company 12.47 kV distribution feeder (12.47 kV L-L and 7.2 kV L-N). The estimated load is 85 kW at 0.9 lagging power factor. If the service is supplied from a bank of three single-phase overhead transformers (assume single bushing transformers) connected in a grounded-wye configuration, determine the appropriate apparent power rating and voltage rating to serve this load. Assume the load is continuous and allow...

  • A distribution board distributes energy to various items of plant via an installation which has a...

    Step by step precise and concise full solution please A distribution board distributes energy to various items of plant via an installation which has a high voltage (H.V.) panel, a low voltage (L.V) panel and a transformer. The details are as follows: The H.V. panel obtains a 3-phase supply at 11 kV. The transformer circuit-breaker is equipped with 75/5A current transformers which feed a very inverse 3-poles overcurrent relay of 5-A rating. The transformer has a rating of 1000 kVA...

  • A three phase 250 kVA 2400:415 V 50 Hz distribution transformer is constructed by connecting thre...

    A three phase 250 kVA 2400:415 V 50 Hz distribution transformer is constructed by connecting three single phase transformers in the Dynll vector group as shown in Fig.P1. The per phase equivalent circuit parameters on the high voltage side are: R1-0.72 Ω, Xi,-0.92 Ω, R2-0.70 Ω, Xp-0.90 Ω, R.-308.49 Ω, and X,,-44.61 Ω (a) Sketch the corresponding phasor diagram of the primary and secondary voltages for the Dynll vector group; lagging; terminal voltage is 415 V line to line, and...

  • 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...

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