A load of 120 MW at a power factor of 0.75 lagging can be delivered by a 3-phase transmission line. The voltage at the receiving end is to be maintained at 51 kV and the loss in the transmission as 8.5 % of the power delivered. (Consider the line to be a short transmission line) Find Single phase Power delivered Per phase voltage Current flowing through the transmission line 3 Phase Losses in the transmission line Per phase resistance of the transmission line
Q: A load of 135 MW at a power factor of 0.9 lagging can be delivered by a 3-phase transmission line.…
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Q: A single phase transmission line is delivering 490 kVA load at 10 kV. Its resistance is 6.5 Q and…
A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…
Q: For Figure 1: A short 3-phase line with an impedance of (6+j8) per line has sending end and…
A: Ans. Is shown below.
Q: A load of 120 MW at a power factor of 0.9 lagging can be delivered by a 3-phase transmission line.…
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Q: A balanced load of 30 MW is supplied at 132 kV, 50 Hz and 0•85 p.f. lagging by means of a…
A: Percentage rise in voltage at receiving end is calculated as shown below
Q: A load of 130 MW at a power factor of 0.9 lagging can be delivered by a 3-phase transmission line.…
A: Given P3ϕ=130 MWcosϕ=0.9 lagVr=33 KVLosses in the transmission line=7% of power delivered…
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 load of 130 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 145 MW at a power factor of 0.9 lagging can be delivered by a 3-phase transmission line.…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
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A: This question is based on the load connection in the distribution line simulator. RL load in the…
Q: A load of 125 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…
A: A 3 phase -Load 125MW, power factor 0.8 logging, Receiving end voltage VR = 36kV. Loss in…
Q: A single phase short-transmission line is feeding a load of 12 kW at a 0.8 lagging power factor. The…
A: Given values are - PL=12kWcosϕ=0.8R=5ohmX=10ohmVL=440∠0oV
Q: A load of 120 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…
A: Conventional sources of energy are the form of energy which is traditionally used for generation of…
Q: A load of 120 MW at a power factor of 0.65 lagging can be delivered by a 3-phase transmission line.…
A:
Q: A load of 125 MW at a power factor of 0.6 lagging can be delivered by a 3-phase transmission line.…
A: single phase power=3 phase power 3. per phase voltage=Line voltage3. line current=power…
Q: A single phase transmission line is delivering 490 kVA load at 12 kV. Its resistance is 6 N and…
A: current in transmission line = power delivered to load in KVA voltage in KV. sending end voltage =…
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 load of 135 MW at a power factor of 0.65 lagging can be delivered by a 3-phase transmission line.…
A: Below are the answers calculated for the above given data
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Q: A single phase transmission line is delivering 400 kVA load at 12 kV. Its resistance is 5Q and…
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Q: Exercise 15MVA 11kV T2 3 38 j0.15 pu Line (200+j500) N 20MVA AY YA 11kV 25MVA 20MVA Load j0.15 pu…
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Q: A short 3- line with an impedance of (6 + j8) N per line has sending and receiving end line voltages…
A: Given a short 3-φ line with, Impedance per line, Z = (6 + j8) Ω Resistance, R = 6 Ω Reactance, X = 8…
Q: A load of 135 MW at a power factor of 0.65 lagging can be delivered by a 3-phase transmission line.…
A:
Q: A load of 120 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…
A: Solution:- Given, PL-3ϕ =120 MW PL-1ϕ = 40 MW Pf = 0.8 lagging VR-1ϕ = 45 × 1033= 25.9807 KV Single…
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: A load of 140 MW at a power factor of 0.6 lagging can be delivered by a 3-phase transmission line.…
A: Given 3-phase transmission line Load PL=140 MWPower factor PF=0.6 lagReceiving end voltage VR=36…
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 is delivering 420 kVA load at 11 kV. Its resistance is 5 2 and…
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Q: The annual load duration curve of a power supply system may be considered as straight line from 40…
A: Given: The annual load duration curve of a power supply system may be considered as straight line…
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: A three-phase, three-wire Y-Y system a balance load. The following information are given of the…
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Q: A load of 125 MW at a power factor of 0.9 lagging can be delivered by a 3-phase transmission line.…
A: Given a three phase transmission line with load 125 MW ,0.9 pf, 57 kv The loss in the transmission…
Q: A single phase transmission line is delivering 460 kVA load at 11 kV. Its resistance is 4.5 Q and…
A: Fig: Equivalent circuit diagram of given single-phase Tr-line (a) current flowing…
Q: A load of 130 MW at a power factor of 0.75 lagging can be delivered by a 3-phase transmission line.…
A: Sending end voltage =recieving end voltage +drop Losses =3×I2×Rph
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: A load of 120 MW at a power factor of 0.6 lagging can be delivered by a 3-phase transmission line.…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: A load of 120 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…
A: per phase power =3 phase power 3Given 3 phase power = 120 MWso per phase power = 1203 = 40 MWPer…
Q: Using a test equipment, Vmax was found to be 5V while Vmin is 1V. The distance between voltage…
A: Given : Note : Please note that for the proper understanding here we have used two methods to…
Q: A load of 130 MW at a power factor of 0.7 lagging can be delivered by a 3-phase transmission line.…
A:
Q: Determine total real power, P, total reactive powM (a) Based on the relationship between the line…
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Q: A load of 145 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…
A:
Q: Question 4 If the phase parameters for this 50HZ, 40km transmission line are R=20, L=10mH, and…
A: R= 2 ohms L = 10 mH and C = 8000 μF, f = 50 Hz XL = 2πfL = 2 x 3.14 x 50 x 10 x 10 -3 = 3.14j ohms…
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- In the following network, the voltage magnitudes at all buses are equal to 1 p.u., the voltage phase angles are very small, and the line resistances are negligible. All the line reactances are equal to j1 p.u. (1) (2. P₂ = 0.1 p.u. P3 = 0.2 p.u. The voltage phase angle 83 in radian at bus 3 is (Assume one of the generator bus as slack bus and sin-¹ (0.1) = 0.1 rad) (a) -0.1 (b) -0.2 (c) 0.1 (d) 0Figure below shows the one line diagram of a 3-o 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 as follows: G: 100 MVA, 22 KV, X= 0.18 pu 22/220 KV, X= 0.1 pu TR1: 50 MVA, TR2: 40 MVA, 220/11 KV, X=0.06 pu Load 1: 50 MVA, 0.8 pf lag Load 2: 50 MVA, 0.8 pf lead If volt at bus 4 equal 11 KV constant value : calculate i) volt at bus 1 ii) EMF (Eg) of generator ii) Transmission line current TR1 TR2 ZTL=j80 2 G1 3. 4 Load 1 Load 2Problem 3.5: From a 3-phase, 480 V generator switchboard, a feeder takes 3-phase power to two equipment at the other end via cable and trans- former with the combined series impedance Z = 0.04 + j 0.09 N per phase. The voltage at receiving end point A rises and falls as a large 3-phase, 500 kVA load at point A varies over time. The small 1 kVA load, also connected at point A, remains online continuously, and must accommodate the voltage variations at point A with the 500 kVA load fully on or fully off. Determine the voltage range that the 1 kVA load will see, over which it must perform within its specifications.
- of stion 4 A single phase transmission line is delivering 450 kVA load at 12 kV. Its resistance is 4.5 2 and inductive reactance is 6 2. If the load power factor is 0.9 lagging. Determine the Current through the line Sending end voltage Sending end power factor Regulation of transmission line Efficiency of transmission line A load of 120 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line. The voltage at the intained at 33 kV and the loss in the transmission as 7.5 % of the power delivered. (Consider1. The one-line diagram of an unloaded power system is shown below. Reactances of the two sections of transmission line are shown on the diagram. The generators and transformers are rated as follows: Generator 1: 20 MVA, 13.8 kV, X = 0.20 p.u Generator 2: 30 MVA, 18 kV, X = 0.20 p.u Generator 3: 30 MVA, 20 kV, X = 0.20 p.u Transformer T1: 25 MVA, 220Y/13.8A kV, X = 10% Transformer T2: Three single-phase units each rated 10 MVA, 127/18 kV, X = 10% HT sides connected in wye LT sides connected in delta Transformer T3: 35 MVA, 220Y/22Y kV, X = 10% j80 2 j100 0 Line 1 Line 2 T T2 Draw the impedance diagram with all reactances marked in per unit. Choose a base of 50 MVA, 13.8 kV in the circuit of generator 1. 2. For the electric power system shown in the figure below, draw the impedance diagram with all impedance marked in per unit. Choose 100 MVA, 20-kV as base in the generator 1 circuit. The three-phase power and line-line ratings are given below: G1: 90 MVA, 20kV,X = 9% T1:80 MVA, 20/200…Problem 1 - Series en Parallel AC networks [19] Look at the circuit in Figure 1 and determine the following: (a) Total Admittance. (b) Total Impedance. (c) Total Current (l:). (d) Current (I1) through impedance Z2. (e) Current (12) through impedance Z3. (f) Current (I3) through impedance Z4. (g) Is this an inductive or capacitive circuit? A. B Zs 220V;50HZ Figure 1 (h) Voltage across Z1. (i) Voltage across A and B. G) Voltage across Zs. Z1 = 3 + j5 ohm Z2 = 10 + jo ohm Z3 = 5 + j15 ohm Z4 = 10 – j30 ohm Zs = 20 – j30 ohm Admittance and Impedance in rectangular notation. All currents and voltage in polar notation. Take voltage as reference.
- 2. The one-line diagram of a three-phase power system is as shown in the figure below. Impedances are marked in per unit on a 100-MVA, 400-kV base. The load at bus 2 is S2 = 15.93 MW-j33.4 Mvar, and at bus 3 is S3 = 77 MW +j14 Mvar. It is required to hold the voltage at bus 3 at 4006 0 kV. Working in per unit, determine the voltage at buses 2 and 1. V3 j0.5 pu V₂ S₂ j0.4 pu S3Do the majority of electricity network losses occur in transmission networks (e.g. >69 kV in North America) or distribution networks (<69 kV)? Why is this the case?In a 3-phase overhead system, each line is suspended by a string of 3 insulators. The voltage across the top unit (i.e. near the tower) and middle unit are 10 kV and 11 kV respectively. Calculate (i) the ratio of shunt capacitance to self capacitance of each insulator, (ii) the string efficiency and (iii) line voltage
- Question 3. A three-phase impedance load balanced D a connected load in parallel with a balanced ? connected load made of bonding. D each arm for the load ?D = 6 + 6? and ? each arm for the connected load It is given as ?? = 2 + 2?. ? the connected load ?? = 1? is earthed through the neutral impedance. To this impedance load, the symmetrical component voltages ?0 = 10∠60°, ?1 = 100∠0° and ?2 = Unbalanced phase-to-earth voltages ??, ?? and ?? of 15∠200° volts were applied. a) Draw the zero, positive and negative sequence circuits. b) Find the complex powers imparted to each component circuit.Non-Reactive Loads of 10kW, 20kW and 12kW are connected between the neutral and the red, yellow and blue phases respectively of 3-phase, 4 wire . The line voltage is 400.a. Calculate the current in each line andb. The current in the neutral,The one-line diagram of an unloaded power system is shown below. T2 j 80 0 j 100 2 E Y uw Ts Reactances of the two sections of transmission line are shown in the diagram. The generators and transformers are rated as follows: Generator 1: 20 MVA, 13.8 kV, X" = 0.2 per unit Generator 2: 30 MVA, 18 kV, X = 0.2 per unit Generator 3: 30 MVA, 20 kV, X" = 0.2 per unit Transformer T1: 25 MVA, 220Y/13.8A kV, X = 10% Transformer T2: Single-phase units each rated 10 MVA, 127/18 kV, X = 10% Transformer T3: 35 MVA, 220Y/22Y kV, X = 10% Compute for the reactances per unit and by choosing a base of 50 MVA, 13.8kV in the circuit of generator 1. Show your complete solutions (41-48): 41. What is the generator 1 per unit reactance? a. 0.3333 b. 0.2755 c. 0.5 d. 0.2 42. What is the transformer 1 per unit reactance? a. 0.2 b. 0.1667 c. 0.1429 d. 0.0826 43. What is the transmission line 1 (point B to C) per unit reactance? a. 0.1033 b. 0.0826 c. 0.5 d. 0.2 44. What is the transformer 3 per unit reactance?…