a. If two wattmeters are used to measure total power in a three-phase three-wire system does each meter measure single-phase power? Explain. b. What is the significance of a negative indication on a wattmeter? c. Would only one wattmeter be needed to measure the total three-phase power on a balanced three-phase four-wire system? Explain.

Q: (b) The switch in Figure Q2(b) circuit has been closed for a long time. At t = 0 s, the switch is…

A: The solution is

Q: Design PI controller for simple system T.F is:- G(s)=1/(1000s+100) For Mp=20% and Ts-8sec

A: PI Controller Faster response  System stable Error less Transient state improved

Q: The two generators shown in below (G1 and G2) are generating at 1 p.u. voltage. T, T2 F G2 L2 The…

A: fault is at F fault type - double line to ground E= 1 pu E =1 pu

Q: Given the transistor circuit with beta as 100, solve the ff: a. Base Voltage b. Collector Voltage c.…

A: Circuit diagram is given as,

Q: A 3-phase synchronous generator is connected to an infinite bus with line-to-line voltage of 8660.3V…

A: Given data is  VP=8660.3V Vrms=Vp2=6123.756 angle δ=20° X=5 ohm

Q: 0.272A 0.32 0.048 L 0.08503 9A 1642 4.70L 2.80A Radio 20.10V 14.20V(+ Battery Wind Solar Panel…

A: Radio Repeater It is an electrical device which capable to receives the radio signal and forward it…

Q: In free space, let D = 8xyz*a, + 6x?z*ã, + 16x?yz'a, pC/m². 37 2 %3D

A: We need to find out electric flux Passing through the given surface .

Q: Two equal mass metallic spheres A and B are charged, where Sphere A is positively charged while…

A:

Q: 2Ω 3 H 2 H 4Ω 2 F

A:

Q: A magnetically coupled coil has mutual reactance of 5.655 ohms, inductive reactance in coil 1 of 15…

A:

Q: Q/ The total resistance for the configuration below is specified. Find the unknow resistance. 8.2 kf…

A:

Q: PRACTICE EXERCISE 7.5 Plane y I carries current K = 50a, mA/m. Find H at (a) (0,0, 0) (b) (1, 5,-3)…

A: In this question we will find H due to given plane carrying current....

Q: Present State = A(t),B(t) Input = I Next State = A(t+1), B(t+1) Output=Z 1 1 1 1 1 1 1 1 1 1 1 1 1 1…

A: The solution is given below

Q: The accumulation of excess electric charge on an object is called А. Electrostatic discharge В.…

A:

Q: Circuit Practice Answer the following questions using the pictures below. Circuit # Circuit #2 E 5.…

A: In this question we need to draw a circuit

Q: b) What is the different biasing a diode; Forward versus Reverse Bias for PN diode. Do support your…

A: Brief description : Diode ia unidirectional device which will works only in one direction . It…

Q: 0.048L 0.2728 0.32 0.08503 9A 4.7 2.80A Radio 20. 4.20V(* Battery Wind Solar Panel Repeator…

A: A thevenins equivalent circuit is used for solving complicated circuits, by converting the voltage…

Q: What is the appropriate value ofR so that the current in the circuit below is around 25 mA? ... .9 V…

A:

Q: Using Fig. P12.40, at what frequency does the quadratic pole break (the 3dB frequency of the…

A: The cutoff frequency can be seen as the +3 dB point in the Bode plot.

Q: A Y-connected balanced 3 phase source with z-0.2+j0. 1/phase is connected to a Y-connected balanced…

A:

Q: Find the Inverse Laplace Transform of the following functions 1 10) F(s)=- Ans. f(1)=-sinh(2r) s* –…

A:

Q: Show that characteristic impedance is Z, = -V, /I5

A: The Characteristic impedance is also a important factor in terms of transmission lines. It can be…

Q: -mine V and i 2V + 2A 8V V V=17V, i=3A

A:

Q: Find the Inverse Laplace Transform of the following functions 1 2) F(s) = Ans. f(t) = (1+cos(2t))/4…

A: We need to find out inverse of given signal.

Q: Consider a cellular system with rating frequencies around fc = 700 IHz, under the free-space path…

A:

Q: Find the Inverse Laplace Transform of the following functions – a Ans. f(t)= t> a F(s) : t<a

A:

Q: 10. A new cable section is being spliced to replace a broken section of cable. The loss before the…

A: The solution is given below

Q: Optirnize the state variable filter as shown belowfor Q = 75. What bandwidth is achieved? 12 kn 001…

A: Given: Q=75 Circuit:

Q: Two-point charges, Q1 and Q2 are located at (0, 0, 0) and (1, 1, 1). If both charges are identical,…

A: The solution is given below

Q: Problem 44: Find the voltage across each resistor. R4 2Ω 3Ω R3 6 A R )7A R, Rs{8 N 5 0 12

A:

Q: 100 μ HE 50 µF 12Ω HE 1.6 mH ig = 5 cos 2500t A vg = 20 cos(2500t + 90°) V. For the circuit above,…

A: The solution is given below

Q: Two identical positive charges are placed as shown in the figure. State the strength of the electric…

A:

Q: 270 k Ohrh 16V 2.7k Ohm

A:

Q: In a three phase balanced A-A has abc an System, the source Sequence. The line and load Imprdances…

A: In this question,  A balanced Delta Delta system is given with impedance and current in the load.…

Q: Based on the equation shown below, what can you conclude? P, = V •D А. The component D will cause…

A:

Q: QUESTION 1 When discussing motors with commutators and brushes, the neutral plane is: O…

A: Four options are given in the question. We need to choose the correct option. It is asked when…

Q: c) For electric circuit in Figure Q1 (c), determine /, l2 and loz. l2 D1 Si V1 12 V D2 lo2 Si R1 3kQ…

A:

Q: 1. j1 Q 4Ω 200/45° V j82 j5Ω 10Ω V, Vo=?

A:

Q: 10 n 12.5 오 30고 ww 240 V 152 202

A: To calculate total current IT from circuit

Q: In a balanced three phase system, the with an abc- phase a balanced wye Source is sequence and Vab-…

A: In this question,   A balanced Delta source supplied to the power to balance star and Delta balanced…

Q: derive the Av expression in step 1& 4 of the procedure Vout 1) AV = -Vin Rin Vout Re- 4) AV - Vin…

A: 1

Q: A supercapacitor is connected to a DC voltage source through a resistor. The initial capacitor…

A: A parallel placed plate capacitor can hold a limited value of electric energy before a collapse…

Q: Design a combinational circuit with four inputs and one output. The output is 1 if the number of 1’s…

A:

Q: 3. 2Ω 162 1:4 ww 240/0° V rms V -j24 2 Vo=? Complex power supplied by the source=?

A:

Q: Find the Inverse Laplace transform of s^2+2.

A:

Q: According to the figure below, what will happen when an external force is applied to the +q charge?…

A:

Q: An infinite sheet of charge exists at the plane z = 0. Find the electric field intensity at point P…

A:

Q: The switch in Figure Q2(b) circuit has been closed for a long time. At t = 0 s, the switch is…

A: The solutions are

Q: 10 Q 40 Q 5µF + 20 2 30 Q 40mH 40 V Figure Q1(b)

A: The solution is given below

Q: 31 Calculate the total electric field at z = 4 m of two infinitely large parallel plates shown below…

A: The solution is given below

Fault Analysis

In an electrical engineering system, a fault is an abnormal electric current flowing through the system, and fault analysis is the study of these faults. For instance, a short-circuit is a fault where the live wire touches the ground or neutral wire. If a circuit is interrupted by a failure of a current-carrying wire then an open circuit fault occurs. The open-circuit faults are also called series faults. One or more phases or ground may be involved in a three-phase fault or may occur only between two phases. Current flows into the earth in case of a ground fault or earth fault. For most situations, the prospective short circuit current of a fault that is predictable can be calculated. To limit the loss of service because of a failure, the protective devices can detect fault conditions and operate circuit breakers and also other devices. All phases equally can be affected in a poly-phase system which is known as symmetric electrical fault. The asymmetric fault becomes more complicated to analyze if only some phases are affected. By using methods such as symmetrical components, the power system analysis of these types of faults is often simplified. The main objective of power system protection is to design, detect, and interrupt power system faults.