Three Impedances each of (14- j18)N are connected in mesh across a three-phase 415V ac supply. Determine the phase current, line current, active power, reactive power drawn from supply. Also draw the Phasor diagram for the mesh connection and marks the Line current ,phase current line voltage and phase angle between phase current and pahse voltage.
Q: A 13.8-kV, single-phase generator supplies power to a load through a step-up transformer, a…
A:
Q: A single phase circuit with a given load 3 ohm resistance and inductive reactance of 4 ohms as…
A: The question is about active power, reactive power and apparent power, power factor.
Q: A balanced delta connected load of (9-j6) Ω per phase is connected to a balanced 3 phase 415V…
A:
Q: Q/2/Determine the input impedance (ZT) and current (IT) of the series network consist of (R = 50, X₁…
A: In this question, We need to determine the equivalent impedance ZT and total current IT Also…
Q: 2) A 30- resistor, a 15-0 inductive reactance, and a 12- capacitive reactance are connected in…
A: In this question, We need to determine the current in the each Branch, total current and impedance…
Q: (a) the full load efficiency at unity power factor;
A:
Q: 4 (a) Describe the difference between displacement power factor and true power factor. (b) Briefly…
A:
Q: A symmetrical delta-connected 415V three-phase supply is feed to an asymmetrical d connected load as…
A: The solution can be achieved as follows.
Q: Draw the block diagram of a load frequency control of a single area power system
A: Load-frequency control (LFC) : For large scale electric power systems with interconnected areas,…
Q: Q21-The Line Volta8es at the terminal ofabalanced Yeomected Lood 1S VAB-12066Each phase of the Lood…
A:
Q: Three Impedances each of (8 - j18) are connected in mesh across a three-phase 410V ac supply.…
A: In this question we need to find a line current , phase current , real power and reactive power of…
Q: A balanced three-phase load of 1000 kW and 0.8 p.f. lagging is supplied by Vee-connected…
A:
Q: 18: A series resistive inductive load is energized from a 240V(RMS), 50HZ single phase A. supply,…
A: Given a series RL circuit having, Energized voltage, V = 240 V (rms) Frequency, f = 50 Hz Active…
Q: a-Calculate and draw the load current for the first two-period interval b-Calculate and draw the…
A:
Q: Three Impedances each of (12- j16)N are connected in mesh across a three-phase 410V ac supply.…
A: we need to determine phase current line current real power reactive power
Q: The p.u. impedance value of an alternator corresponding to base values of 13.2 kV and 30 MVA is 0.2…
A:
Q: (a) Describe the difference between displacement power factor and true power factor. (b) Briefly…
A: Difference between displacement power factor and true power factor. Displacement power factor only…
Q: 1) What is the phase angle between the phases in an ideal 3-phase system?
A:
Q: Three Impedances each of (12 -j18)N are connected in mesh across a three-phase 420V ac supply.…
A: According to the given question, it is required to determine the below given parameters for the…
Q: a transmission line has an impedance of 4 12 Ohms/phase, Find the per-unit impedance of this line on…
A:
Q: A load Δ balanced impedance of 50∠35 ° Ω is energized from the secondary of a three-phase…
A: Given, Zph=50∠35 ΩVan=120∠-10 V line voltage, VL=3Van=3*120∠-10=207.85∠-10 V
Q: 37. 29 Discuss the causes and consequences of harmonic distortion Enlict the Power quality issues…
A: Given We need to elaborate the causes and consequences of harmonic distortion in power systems.…
Q: Manufacturers usually specify the impedances of machines and transformers in O Percent O Per-unit O…
A: Need to Find correct option
Q: A step-down chopper, with voltage source 20V. If the duty cycle is 50 frequency is 0.1Hz, Find…
A:
Q: 10. Draw a neat diagram of a practical transform on load, with winding resistance and leakage…
A: Introduction: Transformer is a device that converts level of voltage, (increases or decreases)…
Q: (b) A symmetrical delta-connected 415V three-phase supply is feed to an asymmetrical delta-…
A:
Q: (b) A 12V 200, 2kHz AC voltage source of 5002 output impedance is connected to a load of impedance…
A: A voltage is being applied across a series of two resistors via a voltage divider. As the current…
Q: A balanced positive sequence star connected source with VLL=220V is connected to a delta connected…
A: Delta connected (8-j6) impedance is converted to star connected load. so, star connected load will…
Q: The leakage reactance(XL)and the armature reactance (Xm) of the three phase unloaded alternator are…
A: False
Q: Q1. A lossless T-junction power divider has a source impedance of 50 Ohm. Find the output…
A: Given: A lossless T-junction power divider has a source impedance of 50 Ohm. To find: Find the…
Q: A balanced 3-phase load of 150 kW at 1000 V, 0.866lagging power factor is supplied from 2000 V, 3-…
A: Given:3-ϕ loadP=150kWV1=1000Vpf=0.866 lagging
Q: For step -down chopper circuit, source voltage Vs=220V, Chopping period T=2000micro second, on…
A: Step- down chopper is the DC input voltage. It is the static device the average output DC voltage of…
Q: find the impedance ZL for maximum average power transfer
A:
Q: A load impedance ZL Find two designs using open-circuited stubs. 100 + j80 2 is to be matched to a…
A: Single shunt stub tuner is used for the impedance matching. This is used while a short circuit and…
Q: (b) A symmetrical three-wire three-phase supply as shown in Figure Q2(b) is connected to a balanced…
A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: A 30-Ω resistor, a 15-Ω inductive reactance, and a 12-Ω capacitive reactance are connected in…
A:
Q: Can you help me provide recommendations to improve harmonics and flicker- in three phase power…
A: The harmonics in a system can be explained as the integral multiple of the fundamental frequency.…
Q: Q1) For the circuit shown below, Vab = 240415°, Zy = (12 + j15) 2, the phase sequence is positive.…
A: given data Vab=240∠15 Zy=12+j15
Q: The impedance values for the balanced AC bridge circuit shown in the figure below are listed as…
A: Bridge is said to be balanced when product of opposite arms are same i.e from figure Z1×Zx=Z2×Z3.
Q: A 200 ohm resistor is connected to a 5 millihenry inductor at 60HZ. Find the total impedance and the…
A:
Q: A balanced delta load with impedances of 13 +j18 Q is connected to a 440-V, ACB source. Find the…
A:
Q: Three Impedances each of (9 - j18)N are connected in mesh across a three-phase 415V ac supply.…
A:
Q: At low power factor, the feeders have to carry more current for the same power to be tra Select one:…
A:
Q: Q2: Design open-circuit parallel single stub near to the load to match load impedance of ZL = 80 +j…
A: Here is your answer! I hope this will help you.
Q: Three Impedances each of (13 -j16) ohm are connected in mesh across a three-phase 405V ac supply.…
A: Given, Per phase impedance Zph = 13 - j16 ohm Three phase supply voltage VL = 405 volts Mesh…
Q: A three-phase 440-V, 50-kW, 60-kVA inductive load operates at 60 Hz and is wye-connected. It is…
A: Active power to motor before and after the power factor correction is ramains same. Capacitor can…
Q: non-sinusoidal quasi-square wave voltage v(t) is applied to a nonlinear load, resulting in a…
A:
Q: Three Impedances each of (11 – j20)Ω are connected in mesh across a three-phase 410V ac supply.…
A: VL=410VZL=11-j20Ω∵Ia=Ib=Ic=IL
Q: ) To match a load of ZL = 30 (2), to a transmission line with characteristic (f) ( impedance Zo = 75…
A: According to the question, to match a load line, we need to find the distance of the quarter-wave…
Step by step
Solved in 4 steps with 1 images
- What is the main direct cause of reactive power in AC system?A. Resistance of transmission linesB. Inductance and capacitance in the loadsC. Ideal transformer connected in the systemD. Power produced by generatorThe section bus-bars A and B are linked by a bus-bar reactor rated at 6000 kVA with 12% reactance. On bus-bar-A, there are two generators each of 10 MVA with 8% reactance and on bus-bar-B, two generators each of 6000 kVA with 10% reactance. Find the steady MVA fed into a dead short circuit all phases on B with bus-bar reactor in the circuit.Subject - Design electrical circuits for single phase AC networks Question - Compare the effect of varying resistance, capacitance and inductance in a pararllel and series AC circuits on voltage resistance and impedance.
- What is the relationship between primary induced emf( E1) and applied voltage (V1) of a Transformer? O a. Both are unequal and in phase O b. Both are unequal and 180 degree out of phase O c. Both are equal and 180 degree out of phase O d. Both are equal and inphase128, An equipment has an impedance 0.9 p.u. to a base of 20 MVA, 33 kV. To the base of 50 MVA, 11 kV, the p.u. impedance will be (a) 4.7 (c) 0.9 (b) 20.25 (d) 6.75In the system shown in Figure 1, the transformers are connected star-star with both star points grounded and the generators are connected in star with thier star points grounded. The system base is 15 MVA. The transformers all have reactances of 0.04 p.u. on this 15 MVA base. The reactances of all other elements are given in Table 1 (in 2) and the voltage levels are given in Table 2. p.u. G1 p.u. T1 jö Per-Unit Convert all values to p.u. on a 15 MVA base. Xa= p.u. Xc₂= XL = V BABE G1 2 X 9 T3 Figure 1: A section of the distribution system T1 L Table 1: Sequence reactances (2) 3 G1 L G2 0.3 0.59 0.01 4 L 9/10 10 Fault Voltage What is the voltage at bus 3 (in Volts) after the fault has occurred? Vp= V T2 5 T2 34 10/4 Table 2: Voltage bases (kV) G2 4 T3 10/9 | G2 Fault Current A three-phase fault with a fault reactance of 0.01 p.u. occurs at bus 3. Calculate the fault current flowing at the fault point in KA. Ip=-j KA So
- Power in a three phase delta system with balanced load is equal to (Sqrt (3)) (VL) (IL) (p.f.) (Sqrt (3)) (Vph) (Iph) (p.f.) (Sqrt (3)) (VL) (Iph) (p.f.) O (Sqrt (3)) (Vph) (IL) (p.f.)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.Please help with this balanced three-phase circuit problem.
- Q5/B: Explain delta-star connection of 3 ph transformers. What its advantages and disadvantages?A 5-ohm resistor is connected in series with a 25 micro-farad capacitor. A source voltage of158 volts, 50 Hz supplies the combination. Determine the following:a. Circulating currentb. Voltage across the resistorc. Voltage across the capacitord. Real power supplied by the sourceA parallel connection of a RL branch with a C branch is connected across a 100V AC mains. At first R = 10 ohms, L = 20mH and frequency of 1000rad / s, the current measured is 2.2361A at 89.44 leading power factor. A) Determine the initial capacitance. B) However, a fault occurs on the capacitor branch making its capacitance 20% lower and a resistance of 5 ohms is detected. If this faulty circuit is rerun but at a frequency of 500 rad / s, determine the new current that will flow through the circuit.