A three-phase transmission line is connected to a load. The sequence components of the line- to-ground load voltage and the line currents are given as follows: vo = 95e/10 kV, v = 300 kV, v2 = 200e-j10 kV lo = 0,1 = 1500 A, I2 = 100e-/90 A 1. Find the three-phase line-to-line voltages of load. 2. Find the three-phase line currents. 3. Find the three-phase power of the load.
Q: 1: The parameters of a three-phase line 200 km long are resistance = km=0.15 Omega , inductive and…
A: Total resistance per phase R=0.15×100=15 Ω Total reactance per phase, XL=0.5×100=50 ΩInductive and…
Q: A balanced, positive-sequence, Y-connected voltage source with Eab = 480/0° volts is applied to a…
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Q: Consider a DVR compensated single phase system as shown below. a) Without DVR, find the load…
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Q: 4. A 3-phase, 50 Hz, 100 km transmission line has the following constants; Resistance/phase/km = 0-1…
A: As per our policy i have attempted first three part only. Given data: P=20 MW The pi-model is…
Q: An overhead 3-phase transmission line delivers 4000 kW, 22 kV at 0.7 p.f. lagging. The length of the…
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Q: A load of 1000 kW at 0·8 p.f. lagging is received at the end of a 3-phase line 20 km long. The…
A: Given that:
Q: A single phase transmission line is delivering 450 kVA load at 13 kV. Its resistance is 6.5 N and…
A: Single phase transmission line Power deliver P=450KVA, power factor = 0.9 load voltage V=13KV…
Q: A load of 120 MW at a power factor of 0.75 lagging can be delivered by a 3-phase transmission line.…
A: single phase power =three phase power3. power in 3 phase power =3×Line voltage×line current×power…
Q: I need all steps answer A 3-phase overhead transmission line delivers a load of 80 MW at 0.8 pf…
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Q: A load of 140 MW at a power factor of 0.6 lagging can be delivered by a 3-phase transmission line.…
A: In three phase system, Single phase power =( 3 phase power)/3. Power = sqrt(3)× Line voltage ×Line…
Q: A short 3-phase transmission line connected to a 33KV, 50 Hz generating station at the sending en…
A: The solution can be achieved as follows.
Q: Q.13: 380V line voltage, 3-4, 3-wire A-connected, negative sequence (acb), power system with first…
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Q: A load of 145 MW at a power factor of 0.6 lagging can be delivered by a 3-phase transmission line.…
A: Per phase power = total power /3. Per voltage = line voltage/sqrt(3). Power delivered =…
Q: A single phase transmission line is delivering 460 kVA load at 12 kV. Its resistance is 7 2 and…
A: Given that S=460KVAVL=12KVRLine=7 ohmXLine=9 ohmpf=0.8 lagging calculate the current supplied to the…
Q: hallo A 69-kV, three-phase short transmission line is 16 km long. The line has a per phase series…
A: Question . A 69-kV, three-phase short transmission line is 16 km long. The line has a per phase…
Q: A three-phase short transmission line connected in star has an effective resistance of 0.6 Ω per…
A: The given problem is of power system.
Q: A load of 140 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…
A: given total power delivered is 140 mw so total losses are 0.065*140 =9.1 mw
Q: A load of 130 MW at a power factor of 0.85 lagging can be delivered by a 3-phase transmission line.…
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Q: A load of 135 MW at a power factor of 0.85 lagging can be delivered by a 3-phase transmission line.…
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Q: A load of 125 MW at a power factor of 0.7 lagging can be delivered by a 3-phase transmission line.…
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Q: A three-phase transmission line has resistance and inductive reactance of 25V and 90V, respectively.…
A: Given:Sending end voltage, VS=145 kVReceiving end voltage, VR=132KVLine resistance, RL=25ΩLine…
Q: 480V, 3-phase, 3-wire acb system loaded with delta load of (Zab=2.4-JO.7, Zbc=8+J6 and Zca=20+JO)…
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Q: 2. One phase voltage of a three-phase wye-connected load is Vbn=340VZ+20°. Ib vab 340V@+20" Vbc Vca…
A: Fig: Given phasor diagram
Q: A single phase transmission line is delivering 450 kVA load at 13 kV. Its resistance is 6.5 2 and…
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Q: A single- phase overhead transmission line delivers power of 1 MVA at 11kV at 0.86 power factor…
A: In the single phase overhead transmission line Delivered power 1MVA at 11kV at 0.86 PF Find the…
Q: A 50 km, 50 Hz three-phase transmission line has a resistance of 0.01 Q/km and an inductance of 63.6…
A: The solution is given below.
Q: Q2: A 180 km, 3-phase, Overhead transmission line have the following per-phase R = 100, X, = 100n, Y…
A: Given, Rphase=10 ΩXLphase=100 ΩYphase=1.2*10-3 Ω-1 Receiving end voltage, VR=275*1033=158.77 KV Load…
Q: A load of 135 MW at a power factor of 0.65 lagging can be delivered by a 3-phase transmission line.…
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Q: A single-phase transmission line has a resistance of 0.22 ohm and inductive reactance of 0.36 ohm.…
A: Write the given values. R=0.22 ΩXL=0.36 ΩSR=500 kVAVR=2000 Vpf=0.707 lagging
Q: A load of 145 MW at a power factor of 0.6 lagging can be delivered by a 3-phase transmission line.…
A: 1 phase power delivered=3 phase power delivered 3. per phase voltage=receiving end line voltage3.…
Q: A load of 145 MW at a power factor of 0.9 lagging can be delivered by a 3-phase transmission line.…
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Q: A load of 120 MW at a power factor of 0.6 lagging can be delivered by a 3-phase transmission line.…
A: Note- as per bartleby policy we are only allowed to solve 1 ques per window. Please post the second…
Q: (d) The ABCD constants of the three-phase transmission line of Figure Q2 are given below. A = D =…
A: In this question we need to find a voltage regulation of line .
Q: Q.13: 380V line voltage, 3-0. 3-wire A-connected, negative sequence (acb), power system with first…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: A Three-Phase Line with an Impedance of ( 4.5 [ 54 deg ) Ohms, delivers Power to a Load at 1800 V,…
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Q: A three-phase, 50 Hz overhead short transmission line has a line-to-line voltage of 11V3 kV at the…
A: The detailed solution is provided below.
Q: A load of 135 MW at a power factor of 0.65 lagging can be delivered by a 3-phase transmission line.…
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Q: 2. Prepare a per phase equivalent circuit of the system shown below and show all impedances in p.u.…
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Q: A load of 120 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…
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Q: Q3) A 345-kV, three-phase transmission line delivers 500 MVA, 0.866 power factor lagging, to a…
A: Q3) It is given that: S=500 MVAPF=0.866Vph=VL-L=345∠0° kV
Q: A load of 145 MW at a power factor of 0.9 lagging can be delivered by a 3-phase transmission line.…
A: The performance of a power system depends mainly on the performance of transmission lines in the…
Q: A three phase transmission line is 390 km long. The series impedance of the line is (0.315+ jo.653)…
A: Part (a): The total impedance of the transmission line is determined as: Z=0.315+j0.653 Ω/km390…
Q: A load of 140 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…
A: single phase power=three phase power3. current=three phase power3×voltage×power factor. total…
Q: c) A three-phase transmission line is 16 km long. This 50 Hz transmission line has following line…
A: The power system has to transmit power from the generation side to the load side. For this purpose,…
Q: A balanced 3 phase load of 30 MW is supplied at 132 KV , 50 Hz and 0.85 pf lagging by means of…
A: A balanced 3 phase load Power=30 MWVoltage= 132 kV Power factor=0.85 series Impedance of a single…
Q: The parameters of a three-phase line 200 km long are resistance/km =0.15 , inductive/km=0.5 and…
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Q: If a 3-phase short circuit occurs in one of the two circuit of transmission line at point F, and the…
A: Given: A 3-phase short circuit occurs in one of the two circuits of the transmission line at point…
Q: A short 3-phase transmission line connected to a 33kV, 50 Hz generating station at the sending end…
A: It is given that:
Q: An overhead three phase transmission line delivers 357762 W at 16578V at 0.8 pf lagging. The…
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- It is stated that (i) balanced three-phase circuits can be solved in per unit on a per-phase basis after converting - load impedances to equivalent Y impedances. (ii) Base values can be selected either on a per-phase basis or on a three-phase basis. (a) Both statements are true. (b) Neither is true. (c) Only one of the above is true.Figure 2.33 gives the general -Y transformation. (a) Show that the general transformation reduces to that given in Figure 2.16 for a balanced three-phase load. (b) Determine the impedances of the equivalent Y for the following impedances: ZAB=j10,ZBC=j20, and ZCA=j25. ZAB=ZAZB+ZBAC+ZCZAZCZA=ZABZCAZAB+ZBC+ZCAZBC=ZAZB+ZBAC+ZCZAZAZB=ZABZBCZAB+ZBC+ZCAZCA=ZAZB+ZBAC+ZCZAZBZA=ZCAZBCZAB+ZBC+ZCAConsider a three-phase Y-connected source feeding a balanced- load. The phasor sum of the line currents as well as the neutral current are always zero. (a) True (b) False
- Figure 3.32 shows the oneline diagram of a three-phase power system. By selecting a common base of 100 MVA and 22 kV on the generator side, draw an impedance diagram showing all impedances including the load impedance in per-unit. The data are given a follows: G:90MVA22kVx=0.18perunitT1:50MVA22/220kVx=0.10perunitT2:40MVA220/11kVx=0.06perunitT3:40MVA22/110kVx=0.064perunitT4:40MVA110/11kVx=0.08perunitM:66.5MVA10.45kVx=0.185perunit Lines I and 2 have series reactances of 48.4 and 65.43, respectively. At bus 4, the three-phase load absorbs 57 MVA at 10.45 kV and 0.6 power factor lagging.A three-phase line with an impedance of (0.2+j1.0)/ phase feeds three balanced three-phase loads connected in parallel. Load 1: Absorbs a total of 150 kW and 120 kvar. Load 2: Delta connected with an impedance of (150j48)/phase. Load 3: 120 kVA at 0.6 PF leading. If the line-to-neutral voltage at the load end of the line is 2000 v (rms), determine the magnitude of the line-to-line voltage at the source end of the line.One advantage of balanced three-phase systems over separate singlephase systems is reduced capital and operating costs of transmission and distribution. (a) True (b) False
- 1. A 69-kV, three-phase short transmission line is 16 km long. The line has a per phase series impedance of 0.125+j0.4375 Ω per km. Determine the sending end voltage, voltage regulation, the sending end power, and the transmission efficiency when the line delivers (a) 70 MVA, 0.8 lagging power factor at 64 kV. (b) 120 MW, unity power factor at 64 kV. Use lineperf program to verify your results. 2. A three-phase, 765-kV, 60-Hz transposed line is composed of four ACSR, l,431,000-cmil, 45/7 Bobolink conductors per phase with flat horizontal spacing of 14 m. The conductors have a diameter of 3.625 cm and a GMR of 1.439 cm. The bundle spacing is 45 cm. The line is 400 km long, and for the purpose of this problem, a lossless line is assumed. (a) Determine the transmission line surge impedance Zc, phase constant ß, Wavelength, the surge impedance loading SIL, and the ABCD constant. b) The line delivers 2000 MVA at 0.8 lagging power factor at 735 kV. Determine the sending end quantities and…An overhead 3-phase transmission line delivers 1200 kW at 22 kV at 0.8 power factor lagging. The length of the line is 25 km. The resistance and reactance of conductor are 0.25 Ω per km and 0.30 Ω per km. Determine, i) Sending end voltage ii) Percentage regulation iii) Sending end power factor iv) Transmission efficiencyA single-phase transmission line has a resistance of 0.22 ohm and inductive reactance of 0.36 ohm. Find the voltage at the sending end to give 500kva at 2000V at the receiving end at a load power factor of 0.707 lagging. Also find the efficiency of transmission at this load.
- Question 5: A single-phase transmission line has a resistance of 0.22 ohm and inductive reactance of 0.36 ohm. Find the voltage at the sending end to give 500kva at 2000V at the receiving end at a load power factor of 0.707 lagging. Also find the efficiency of transmission at this load. Subject Power Transmission and DistributionA single phase transmission line is delivering 490 kVA load at 14 kV. Its resistance is 6 Ω and inductive reactance is 7 Ω if the load power factor is 0.7 lagging. Determine the: A) Current through the line. B) Sending end voltage. C) Sending end power factor. D) Regulation of transmission line. E) Efficiency of transmission line.Q1: The parameters of a three-phase line 200 km long are resistance/km-0.15 0, inductivekm -0.5 and capacitive susceptancekm-2x 10° U. The transmission line is delivering 50 MVA at 132 kV with power factor 0.85 lagging. Use nominal T method to determine; 1) sending end voltage 2) sending end current 3) sending end power factor 4) transmission efficiency and 5) voltage (4 points) regulation