2.42 A balanced A-connected impedance load with (12 + j9) N per phase is supplied by a balanced three-phase 60-Hz, 208-V source, (a) Calculate the line current, the total real and reactive power absorbed by the load, the load power factor, and the apparent load power, (b) Sketch a phasor diagram showing the line currents, the line-to-line source voltages, and the A-load currents. Use Vah as the reference.
Q: 2. A Y-connected balanced 3-phase source is supplying a balanced 3-phase load. The source phase A…
A: For Star connected system, Phase voltage = line voltage/sqrt(3). Line current = phase current. For…
Q: (2) (z) Just to make sure as a preliminary question... if the base quantity is XB and the actual…
A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…
Q: I- Purely Inductive Load 1. Sketch a three-phase 100VAC RMS phase-voltage, Wye (Y) Connected power…
A: We are authorized to answer one question at a time since you have not mentioned which question you…
Q: Three-phase System Data: 30 Source Zine 30 Load Source: Ean = 12020° v; Epn = 120 – 120° v; Een =…
A: Given under fallowing fault cases 1) single line to ground, 2) LL, line to line fault, 3) fault…
Q: Draw the relevant diagram and label all entity values of the power system as described above. (b)…
A:
Q: Source: Ean = 12020° v; Eon = 1202 – 120° v; Een = 1204120° v (grounded neutral) Zan = Zpn = Zen =…
A: "Since you have asked a questions with four subparts, I will answer only first three subparts of the…
Q: A single-phase 480020° V bus is connected to a single-phase 100kW motor operating at a lagging power…
A: First calculate active, reactive powers of the each load and than find total complex power of the…
Q: Q3. The load impedance in the circuit shown in Figure 2 is shunted by a capacitor having a…
A:
Q: Question No. 1: Figure below gives the general D-Y transformation, (a) Show that the general…
A: The general transformation reduces to as given in figure for a balanced three phase loadFor ∆-…
Q: The figure displays a three-phase delta-connected motor load which is connected to a line voltage of…
A: Dear student as per our guidelines we are supposed to solve only one question in which it should be…
Q: A three-phase, 60-Hz, untransposed transmission line runs in parallel with a telephone line for 20…
A:
Q: Consider the following power system model with the following entities: i. A generator generates a…
A: "According to Company policy we need to answer for only the first three sub-parts of a question, if…
Q: Example: A balanced positive-sequence wye-connected 60 Hz three-phase source has line-to- line…
A: The solution can be achieved as follows.
Q: Q2 (a) Two single-phase voltage sources, V, and V2 are connected by parallel line impedance of ZL1 =…
A: NOTE- As per the rules we can answer only 3 sub-parts, please post the remaining sub-parts as the…
Q: A three-phase, 3-wires CBA System alternator, sending 3-phase voltages of 339.4 volt to the lines,…
A:
Q: Two interconnected substations O and P are interconnected via a distribution line of impedance 6 +…
A:
Q: A single phase a.c. distributor AB is fed from point A has a total impedance of (0.1+j0.2) N. At far…
A: Given system is : Step 1: Calculate respective impedance Total impedance =0.1+j0.2 ΩiImpedance of…
Q: Type your question here Explain the terms, connected load, load factor, plant use factor, diversity…
A: The termrs. connected load, load factor, plant use factor and diversity factor are related with the…
Q: Two balanced loads are connected to a 240-kV rms 50-Hz line. Load 1 draws 30 kW at a power factor of…
A: Ans: a) Complex Power = 123.8 angle(43.86). Real power= 90 kw. Reactive Power = 85 kvar. b) Line…
Q: For a single phase ac voltage controller/chopper, which is d series R (=8[Ohm]) and L(=30 [mH])…
A:
Q: Figure 1 shows a three-phase power system network comprises of synchronous generator, transformers,…
A:
Q: Find the equivalent resistance per phase for the following three-phase load-balanced arrangements,…
A:
Q: For a single phase ac voltage controller/chopper, which is designed by using thyristors, with the…
A: In this question we need to find a average power absorbed by the load
Q: A single-phase load is supplied through a feeder whose impedance is 95 + j360 N and a 35- kV/2400-V…
A: Given: Refer all quantities to HV side.
Q: A 25 kVA, 240 V single phase source supply the rated power at the rated voltage to a motor at 0.8…
A: As we have given : S=25 kVAV=240 Vcosϕ1=0.8cosϕ2=0.9
Q: The 3-phase power and line-to-line voltage ratings of the electric power system shown in the…
A: In this question we need to find a impedance of the motor in per unit.
Q: The yearly load duration curve of a certain power station can be approximated as a straight line ;…
A: The solution can be achieved as follows.
Q: Derive, for both star- and delta-connected systems, an expression for the total power input for a…
A: For the connected star system, Line voltage is 3 times the phase voltage and lines current, and…
Q: For the 3-phase, 3 wire system below. Compute for the line currents, total real power, total…
A: Power factor: The power factor tells how much active power is utilized by the circuit from the…
Q: Example 1: Calculate the percent voltage regulation for a three-phase wye-connected 2500 kVA 6600-V…
A:
Q: L-type equivalent circuit and parameters for a continuous sinusoidal phase of a 5.5 kW, 1420 rpm,…
A:
Q: Referring to the Figure 1 below, set the value of voltage Vs as: - Vs (rms) = (120+the last 2 digit…
A:
Q: Q1 (a) An industrial unit operating at rated power can be represented by a balanc- delta connected…
A: In this question we will write about line voltage phase.....
Q: The three-phase power and line-line ratings of the electric power system shown Figure-1 are given…
A: Given the three-phase power and line-line ratings of the electric power system, Let SAP ID = 8925…
Q: A balanced A-connected load consisting of a pure resistances of 152 per phase is in parallel with a…
A: Explanation: a) Converting the delta circuit into an equivalent star circuit, so the per branch…
Q: To demonstrate the theoretical method of transforming delta networks to wye network, or vice-versa.
A: As per company guidelines, only the first question will be solved. If any other solution is needed,…
Q: Draw load curve of total power station and Find i- Load factor of total power station ii- Plant use…
A:
Q: (a) Based on the relationship between the line and phase value of currents and voltage, show that…
A: By using three phase balanced circuit expressions
Q: A balanced ∆-connected load, with Z∆ = 30 30° Ω, is connected to a three-phase, three- wire, 250-V…
A: It is given that: Z∆=30∠30° ΩZC=0.4+j0.3 ΩVph=250 V
Q: The sensitivity of a node to real power changes is 100 MW/kV of line voltage and that to reactive…
A:
Q: Assume that two load impedances Z, and Z, are connected in series with respect to each other but Z,…
A:
Q: A generating station having two thermal generating units shown below with minimum an maximum…
A: In a power generation station, electrical power is generated according to the demand of the…
Q: A balanced delta connected load of "14+j19" 2- per phase is connected at the end of a three-phase…
A:
Q: Two impedances are supplied by Vrms, as shown in Figure 2, where Arms. The first load draws P₁ =…
A: It is given that: P1=23.2 WQ1=50 VARAssuming,V=100∠160° VI=2∠190° A
Q: A three-phase, 3-wires CBA System alternator, sending 3-phase voltages of 339.4 volt to the lines,…
A:
Q: PHASE PLANT CONSUMES 600 KVA, WITH A VOLTAGE OF 2400 VOLTS AND A POWER FACTOR OF 0.8 BEHIND. a)…
A: PLANT CONSUMES 600 KVA, WITH A VOLTAGE OF 2400 VOLTS AND A POWER FACTOR OF 0.8 BEHIND.
Q: A 3-phase Y-connected load draws power from a 3-phase Y-connected source. The source voltage,…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: The following figure represents a simplified model of the power supply to a load centre from a…
A: Consider the base power is 500 MVA and the base voltage on the LV side of the transformer is 13.8 kV…
Q: Assuming the voltage at the utility bus is 13.5 kV and the PV plant supplies 4.8 MW of power at 0.95…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- The three-phase source line-to-neutral voltages are given by Ean=100,Ebh=10+240, and Ecn=10240volts. Is the source balanced? (a) Yes (b) NoLet a series RLC network be connected to a source voltage V, drawing a current I. (a) In terms of the load impedance Z=ZZ, find expressions for P and Q, from complex power considerations. (b) Express p(t) in terms of P and Q, by choosing i(t)=2Icost. (c) For the case of Z=R+jL+1/jC, interpret the result of part (b) in terms of P,QL, and Qc. In particular, if 2LC=1, when the inductive and capacitive reactances cancel, comment on what happens.4) A balanced delta connected load of ...+j18 ohm per phase is connected at the end of a three phase line as shown in figure. The line impedance is 1+j2 ohm per phase. The line is supplied from a three-phase source with a lie- to-line voltage of 207.85 V rms. Taking Van as reference, determine the following: a) Current in phase a. b) Total complex power supplied from the source. c) Magnitude of the line-to-line voltage at the load terminal. (Please determine the impedance value within the specified limits: 16-26 V. By considering the impedance value you determined yourself, solve the question.) ao- |V₂| bo Co- 1 +j2 Ω = 207.85 V www Figure a Jum ...+j18 n b
- 2) The one-line diagram of a three-phase power system is as shown in Figure. Impedance 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 ...L0 kV. Working in per-unit, determine the voltage at buses 2 and 1. (Please determine the voltage magnitude within the specified limits: 410-450 V. By considering the voltage magnitude value you determined yourself, solve the question.) V₁ j0.5 pu V₂ j0.4 pu S₂ Figure V3 S3Q2) A 13.2-kV single-phase generator supplies power to a load through a transmission line. The load's impedance is Ztoad 500 236.87° ohm , and the transmission line's impedance is Zine = 60 253.1° ohm. To reduce transmission line losses to 0.0103 of its losses without using the transformers design and use two transformers T1 between the generator and the transmission line and T2 between the transmission line and the load.Please help with this balanced three-phase circuit problem.
- 2) A 30- resistor, a 15-0 inductive reactance, and a 12- capacitive reactance are connected in parallel across a 120-V 60-Hz line. Find (a) the phasor branch currents, (b) total current and phase angle, (c) impedance, and (d) power drawn by the circuit.Problem 4- A large 3-phase industrial load draws 3.6 MVA at 0.85 power factor lagging from through a three- phase 12.47/7.2 kV 3-wire overhead distribution line. The phase conductor is #1 ACSR “Robin". Taking 3.6 MVA and 12.47 kV as base values, determine (a) The base impedance in (N) (b) The reactive power drawn by the load (p.u.) (c) The total current (p.u.) drawn from the power supplyQ2) A 13.2-kV single-phase generator supplies power to a load through a transmission line. The load's impedance is Zload = 500 236.87° ohm, and the transmission line's impedance is Zline = 60 253.1° ohm. To reduce transmission line losses to 0.0103 of its losses without using the transformers design and use two transformers T1 between the generator and the transmission line and T2 between the transmission line and the load.
- Q4/For the three-phase power network shown in Figure. the various components are: GI: 100 MVA, 0.30 pu reactance. G2: 60 MVA, 0.18 pu reactance. Transformers (cach): 50 MVA, 0.10 pu reactance. Inductive reactor X: 0.20 pu on a base of 100 MVA. Lines (each): 80 ohms (reactive); neglect resistance. with the network initially unloaded and a line voltage of 110 kV, a symmetrical short circuit occurs at midpoint E of line 2. Calculate the short circuit MVA to be interrupted by the circuit breakers A and B at the ends of the line. T3 38 L1 L2 G2 Bas 12 T4 Bus1. Calculate the line currents for phase a, b and c.2. Calculate the line-to-neutral voltages at the load for phase a, b and c.3. Draw the phasor diagram of the source line-to-neutral voltages and line currents.2. A single-phase are distributor AB is fed from end A and has a total impedance of (0.3-0.3) ohm. At the far end, the voltage V-240V and the current is 100A at a p.f. of 0, 8 lagging. At the mid-point M. a current of 100 A is tapped at a p... of 0.6 lagging with reference to the voltage V_{M} at the midi-point. Calculate the supply voltage V Lambda j sending current I_{N} and the phase angle between V_{A} and V_{E}