Question 1: A three-phase, three-wire, 240 volt, CBA system supplies a delta-connected load in which ZAB= 25/90° ohms, ZBC = 15/30° ohms and, ZCA = 20/0° ohms. Find the line current Ic.

Q: A generating station has 4 sections busbars. Bach section busbar has a generator connected to it of…

A: Each section busbar has a generator connected to it with a rating of 5000 KVA and a reactance of…

Q: 3-phase, two-pole, Y-connected, 60 Hz, 10MVA, 13.8kV synchronous generator has a synchronous…

A: The synchronous generator can be solved as following.

Q: A 33 kV, 50 Hz. 3-phase underground cable, 6 km long uses three single core cables. Each of the…

A: We have been given an 33 KV 50 Hz 3-phase underground cable as,   Length (l) = 6 Km = 6000 m Line…

Q: Lightning stroke is most common cause of current impulsive transients in power system. True False

A: Impulsive transients : It is defined as a sudden change in the electrical quantities such as Current…

Q: A synchronous generator, with synchronous reactance of 6 ohm, is connected directly to an infinite…

A: Given synchronous generator

Q: In a 132 kV, 3-phase, 50 Hz power system, the line to ground capacitance is 0.03 μF and the…

A:

Q: Draw the network: 1 .Grounded Delta

A: A system in which the secondary side of the transformer is delta-connected and one corner of the…

Q: A 3-phase, 420 V, 60 Hz, Y-connected synchronous generator, with a synchronous reactance of 1.20 Ohm…

A: As we have given: VL=420 Vf=60 HzXs=1.2 ΩZs=j1.2 Ωδ=30°Pout=110 kW Step 1: Find E As we know that,…

Q: A split-wye capacitor bank is made up of two 4500-kVAR, 13.8-kV sections, for a total installed…

A: This problem is based on the concept of a balanced 3-phase system and power calculations in AC…

Q: on 7 The effect of capacitance between line and ground in a short transmission line cannot be…

A: Effect of the capacitance between line and ground in short transmission line    as per our…

Q: Q5: A SL-G fault occurs on the low voltage side of a transformer that connects a motor to a…

A: Given data for generator, Given data for motor,

Q: b) Why Generation Voltage Levels are low in the range of 11 kV/ 33 kV etc?

A: The explanation is as follows.

Q: The O.C and S.C test data are given below for a single phase, 5 kVA, 200V/400V, 50Hz transformer.…

A: Solve as below

Q: A three-phase, 230 V, 72 kVA, 0.9 pf (lagging) load is supplied by three 29 kVA, 1330/230 V, 60 Hz…

A: Given, The single line diagram is shown below, Where,Feeder impedance, ZF=0.003+j0.015 Ω/phaseLine…

Q: CI (). Tre dentical capacitor are connected in delta to 430 Volts, = 50 Hz, 3 phase supply.If th…

A:

Q: Fion 7 The effect of capacitance between line and ground in a short transmission line cannot be…

A: 7) Depending upon the length of the transmission line, it is categorized into the following three…

Q: $02 DEATH 3. Use the diagram below to answer the following questions: 10: 1 240v ✓ 50Hz Ver…

A: Use the given diagram below to answer the following questions, a) The transformer peak primary…

Q: Problem 1 – The 4.16kV distribution station capacitor bank below consists of 3 ungrounded double-wye…

A: a) 110% of rated rms voltage b) 120% of rated peak voltage. a) Kilo over - 135% b) RMS voltage -…

Q: An eight-stage Cockroft-walton type cascade circuit with capacitances all equal to 0.30 µF and the…

A: A Cockcroft Walton circuit is a circuit that can be used as a generator or a multiplier. It is used…

Q: For a 3-phase ac device, full load current is 40A, line voltage is 450V and reactance value is…

A:

Q: Current does not flow in the neutral wire in symmetrical 3-phase system a. True O b. False

A: In this question,  We need to determine the current flow in the neutral wire in symmetrical 3 phase…

Q: In analyzing a hydropower site, it is found guibe that the turbines should turn at close to 350…

A: In this question,  If frequency of the rotor is given f= 60Hz We need to find out the number of…

Q: For a 3-phase ac device, full load current is 40A, line voltage is 450V and reactance value is…

A:

Q: 3. What is the maximum phase-to-neutral PEAK voltage of a 34.5 kV nominal distribution system?…

A: Given, RMS voltage of nominal distribution, 34.5 kV Maximum voltage is 1.05 p.u.

Q: 2-2. A single-phase half wave circuit has Vs = 230 V with a R load of 100 . Find the average load…

A: In this question, we need to determine the average current Io of single phase half wave rectifier.

Q: Two persons are standing near a HV equipment and working on it, when an arc flash occurred. Person A…

A: According to the given information, person A was standing directly in front of the high voltage (HV)…

Q: A 200 KVA, single phase two-winding transformer rated 4160/ V, 60 Hz has primary and second…

A: We have to Answer the following questiona. The core loss at normal operation and the maximum and…

Q: (b) Three inductive coils each of inductance 26 mH are connected in delta to a 3 phase 425 V, 50 Hz…

A: The conversion of the inductance from the delta to star is similar as the resistance as shown below:…

Q: Given: R1, R2. R2 R1 R2 5V R1 2A Use nodal analysis to set up the following two equations of the…

A:

Q: State two advantages of a three phase Ac supply over a single phase Ac supply

A: Single phase supply: The power is supplied through two wires called Phase and neutral and the…

Q: A current is measured at the neutral ground of a star load, of equal impedances in all three phases.…

A: In this question we need to choose a correct option

Q: QV A: For the power system shown, calculate fault current and when a 3-phase fault occurs at point…

A:

Q: the total power dissipated by three 702 resistors when connected a) in star and b) in delta to a…

A:

Q: Assuming a fixed distance between parallel plates with a uniform field, and assuming unchanged…

A: Given data  P1=680 torrVB1=340 VP2=880 torrVB2= 360 v

Q: Problem 3.0 Implement the following Boolean expression using a multiplexer: Z= A'B'C + AB'C + ABC

A: The given Boolean expression can be implemented by using the 4x1 mux and the same can be obtained by…

Q: Electromagnetic interference .controls voltage at all level scarry inrush current for short period…

A: Electromagnetic interference=disturbance of frequency around 10MH Reactive power compensation=shunt…

Q: 1. For the circuit shown below, the values are Vab = 20020°, Vbe = 2004120° and Vea = 2004240° V, Z4…

A: The given circuit diagram is shown below, Where,Vab=200∠0° VVbc=200∠120° VVca=200∠240°…

Q: 72. In 132 kV system, the phase to ground ca- pacitance is 0.01 µF and inductance is 6H. The voltage…

A:

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.