The 3-phase power and line-to-line voltage ratings of the clectric power system shown in the fo figure are as follows: Generator G 160 kVA 22 KV 22 KV X= 9% Line 7=2+i5 O
Q: Question 3: i) Identify the type of circuit shown and justify your answer. ii) Establish the line…
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Q: The reading of wattmeter and ammeter is 1 kW and 10 A respectively in the three phase circuit given…
A: Given circuit, Reading of Wattmeter and Ammeter is 1 kW and 10 A respectively. P= 1000 W I= 10 A
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Q: Practice Problem Find the currents and voltages in the cireuit shown using Kirchoffi laws. 221, I 42…
A: ELECTRICAL NETWORK: When addressing a circuit problem or constructing a balanced circuit, the word…
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A: Given, VL=435 V W1=6.4 KW W2=-0.2 KW
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Q: b. two 1-phase furnaces I and II are supplied at 80V by means of a Scott-connected transfor…
A: Given Data, Secondary Voltage V2=80V Primary Voltage V1=6600V
Q: 012- A three phase transformer 3300/ 400 V has D/Y connect working on 50HZ. The line current on the…
A: For star (y) connection,Link Voltage = 3 Phase VoltageLine Current = Phase CurrentFor Delta (∆)…
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Q: A three-phase delta connected balanced load consumes 66 watt of power from a 415 V supply. If the…
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Q: The following are the reading of the Power Measurement in a Three Phase Delta Connected System (…
A: In this question, What is apparent power S? Apparent power in the 3 phase = 3 Vph Iph
Q: What is the total three-phase real power drawn by the two loads? Express your answer in Megawatts
A: In this question, We need to calculate the total real power of the three phase?
Q: A symmetrical three-phase, 440 V supply fed a mesh connected load as follows: Load AB: 20 KW at 0.69…
A: The Given is, 440V supply; Load AB: 20KW at power factor of 0.69 lag; Load BC: 25KVA at power factor…
Q: 4. Draw a phasor diagram that shows ??, ?, ??, and ?? 5. Does the current lag, lead, or in-phase…
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Q: A load consists of R=59 Q, X_=75 Q and Xc=16 Q. All the elements are connected in parallel across…
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Q: In 3-phase system, the power consumed by star connected load is _times less than delta connected…
A: FIND EXPLANATION BELOW
Q: a) Using Norton's Theorem, solve for RN, IN, IL (current through the load) at terminal A and B. 5…
A: we need to find out Rth, IN, IL.
Q: C. 70 µF n. -- r 5. A delta-connected load draws 17.28 kW from 240 V, balanced three-phase supply.…
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Q: 1. Using nodal voltage method, determine the magnitude and direction of the current / in the network…
A: We can redraw the circuit as Apply nodal analysis at node A…
Q: 7. Prob. 7 below: For the system shown in Figure 3.34, draw an impedance diagram in per unit, by…
A: Given system,
Q: If the phase voltage of the three generators are given as below, state whether they are balanced or…
A: All three phases of the generators are given as: For the three-phase system to be balanced, the…
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Q: In the figure, the load absorbs 22.256 KVA at a power factor 0.544639 inductive. For the feeder…
A: The solution is given below
Q: Paragraph Styles Problem 2. For the circuit shown in Figure 2, the sources are V;1 V32 = 24437° V.…
A: The solution can be achieved as follows.
Q: Circuit Impedance Z = Phase Angle = arc cos R/Z = , Calculated Es = Calculated Ec = Calculated ER =…
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Q: Please Answer: Itotal I2 I1 Vtotal
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Q: Q1) For the circuit shown in figure, use Nodal Analysis to obtain currents i,, iz and i3. 2A tis 20…
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Q: c) A simple three-phase power system is shown in the Figure 2. Assume that the ratings of the…
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Q: A 380 V system as shown below, obtain the line currents and phase voltages * 1j 3+2j 2-3j 1-4j 1 j 1…
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Q: (b) Figure Q5(b) shows a 3.5 km long single phase distributor supplied two loads. The loads…
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Q: A three-phase star connected balanced load consumes 102 watts of power from a 440 V supply. If the…
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Q: 1) The line currents in a 3-ph 4 -wire system are Ia = 100<30°; Ib = 50<3000°;Ic = 30<180°. Find the…
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Q: Activity 5.1 1. On a 120/208-v four wire Y system, two lamps are connected from phase A to neutral,…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
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Q: -Draw the per unit diagram for the following system. Choose a base of 11 kV, 100MVA in the generator…
A: Per unit diagram is drawn for the following system
Q: R, = 4N XL= 30 %3D R2= 10N R3 = 120 Xc=50 240 V. 50 Hz
A: Given circuit shown
Q: QUESTION 28 A three-phase balanced delta connected power system has a line current of 50 amps. What…
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Q: Calculate the following; a) total impedance and admittance of the circuit shown. b) total current of…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
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Q: 3 P, 10 kVA, 400 V, s ynchronous generator rmature resistance of .8 Q per phase and sy eactance of…
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Q: In 3-phase system, the power consumed by star connected load is _times less than delta connected…
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Q: -Draw the per unit diagram for the following system. Choose a base of 11 kV, 100MVA in the generator…
A: Given data, Base value Vb=11 kVSb=100 MVA
Q: Circuit Impedance Z = Phase Angle = arc cos R/Z = Calculated Es = Calculated Ec = Calculated ER =…
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Q: A 440 V, 3-phase 4 wire system has the loads 4 – j8, 6 + j2 and 6 + j3 Ω connected in star.…
A: Given: Z1 = 4 - j8 Ω Z2 = 6 + j2 Ω Z3 = 6 + j3 Ω and voltage supply Line voltage, VL = 440 V…
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- For a 220V, 60Hz single phase voltage controller is used for controlling flow of power in to a circuit consisting load of Xl =12 ohms and R=5 ohms. Which of the following represents the correct value of the maximum power and power transfer? (a) Pmax=9.68 kW, p.f =0.6 (b) Pmax=3.72 kW, p.f =0.6 (a) Pmax=9.38 kW, p.f =0.38 (a) Pmax=1.43 kW, p.f =0.38The following data were obtained on a 2.5 MVA, 50-Hz, 19.1-kV:3.81-kV single-phase transformertested at 50 Hz:Voltage (V) Current (A) Power (kW)LV winding with HV terminals open-circuited: 3810 9.86 8.14HV winding with LV terminals short-circuited: 920 141 10.3A generator is rated 100 MW, 13.8kV and 90% power factor. The effectiveresistance is 1.5 times the ohmic resistance. The ohmic resistance isobtained by connecting two terminals to a DC source. The current andvoltage are 87.6 A and 6 V respectively. What is the DC resistance perphase? What is the effective resistance per phase? Whole Solution
- A domestic system of a single-phase 3-wire circuit, allows the operation of both 120V and 240V at 60HZ devices. This domestic circuit is modeled as indicated in the figure. Calculate: A) The currents 11, 12 and 13; B) The total complex power supplied; C) The total power factor of the circuit.Ascertain the Actual values of the following given parameters 200mvA, 13.8kv generator which has a reactance of 0.85 pu and is generating 1.15pu voltage. a) Line voltage b) Phase voltage c) Reactance d)line and phase voltage with the new base of 500MVA, 13.5KVThe electrical power supply system of a particular country is made of the following. Draw asingle line diagram of the electrical power supply system of the country based on the informationbelow using any computer-aided software.Power supply from an infinite bus bar S connected to bus bar A, through a circuit breakerconnected between isolators and a three-phase delta/star solidly earthed transformer T1.Powersupply source from a generator G1 connected to bus bar B through a circuit breaker connectedbetween isolators, and a three- phase delta/star solidly earthed transformer T2. power supplysources from two generators G2 and G3. Each of the generators are connected to a reactor.Furthermore, each of the generators connected to a common bus bar C through a circuit breakerconnected between isolators and a three-phase star/star solidly earthed transformer T3 and T4respectively. bus bar F to bus bar A by means of two isolators, one at each end of transmissionline L6; bus bar A to bus bar E by…
- ANSWER THE FOLLOWING PROBLEM: MAKE SURE TO SHOW YOUR COMPLETE SOLUTION AND ANSWER MUST BE IN FOUR DECIMAL PLACES. 3. A 50-Hz, 250-V single-phase power line has the following loads placed across it in parallel : 4 kW at a p.f. of 0.8 lagging; 6 kVA at a p.f. of 0.6 lagging; 5 KVA which includes 1.2 KVAR leading. Determine the overall p.f. of the systemA 3-phase transmission line is being supported by three-disc insulators. The potentials across top unit (i.e. near to the tower) and middle unit are 8 KV and 11 KV respectively. Calculate: 1) The ratio of capacitance between pin and earth to the self-capacitance of each unit 2) The line voltage 3) String efficiency Subject Power Transmission And DistributionQuestion. Consider a 4 kIA, 200/400V single-phase transformer supplying fiulload current at 0.8 leading power factor. The O.C/S.C test results are as follows: O.C test : 200 V, 0.8A, 70 W (L.V side)S.C test : 20 V, 10A, 60 W (H.V side)Calculate efficiency, secondary voltage and current into primary at the above load.
- Economic analysis of the electricity market is an essential part of the operation of modern power systems (A) Explain the differences and similarities between the following terms: Optimal power flow (OPF) Load flow Economic dispatch (B) Give a brief analysis of the three types of constraints that an OPF must satisfy (C) Discuss the challenges involved in using intermittent sources on the optimal power flowQ22) Consider a 3-phase, 33 kV transformers with N1:N2 = 900:150. Calculate the secondary line voltage on no load condition the windings are connected in the following configurations i) Star-Delta. ii) Delta-Delta.Question 1:a) Three_ phase AC power is generally preferred for generation, transmissionand distribution of electrical power. Explain why alternati current isused and give the main reason for the Choice of high voltages.b) Enumerate at least four major advantages of 3-phase powercompared to three (03) single-phase systems.c) State the formula for AC power and name the four componentsContained therein