99 Example 20 MVA 60 MVA 20 MVA 0.08 pu 0.1 pu 0.09 pu Find the short circuit current at G3 G1 G2 the fault in the point F for the 11.8 k power system shown in figure.

Q: Figure shows a chopper. The device S1 is the main switching device. S2 is the auxiliary commutation…

A: Given- Load current- Io=20 A, voltage V=200 V, Capacitance C=2μF, L=200 mH, To Find- The peak…

Q: Determine the loop currents values for the circuit. where R1= 170 (ohms), R2= 340 (ohms), R3= 85…

A: To find the loop currents I1 and I2 .

Q: 2) The following circuit has a problem. Switch #1 is able to control lamp #1, but lamp #2 never…

A: Given: Lamp 1 in series with switch 1 and Lamp 2 with in series with switch 2.

Q: The three loads in the circuit can be described as follows: Load 1 is a 2400 resistor in series with…

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Q: Is TAV AV

A: Circuit diagram is given as, Since all the resistance are connected in parallel therefore voltage…

Q: The ratio of % reactance at rated kVA to the % reactance at base kVA is equal to

A: We need to tell the correct option for the given blank in the given statement.

Q: Assume a 30-ka load resistor is added to the circuit as shown. Calculate the loaded voltage Va.…

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Q: Consider Figure 70. Solve for V. Use the following values: R1-Rf-112 kohms, R2=R3-17 ohms, V₁- 0.9V…

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Q: a the circuit has two DC operating points. Identify both b) If you linearize around which of the…

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Q: QUESTION 2 The source in Figure 2 has an internal resistance of 120 Ohm. Determine the load power…

A: 2) To calculate the load power when the load resistance is 25 ohm

Q: Fin de currents and voltages of the circuit (V1,v2,v3,v4) I1, I2, I3

A: In this question we need to find currents and voltages of the circuit (V1,v2,v3,v4) I1, I2, I3

Q: Choose from the given  the value of each current I1, I2, I3, I4, I5 and I6 in amperes

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Q: Lightning over-voltages and switching phenomena of switchgears are two examples of transient…

A: Lightning surge: A lightning surge is a very short burst of high voltage which if not suppressed can…

Q: For a system if the value of peak overshoot is 22 %, then the value of damping ratio Oi is

A: Peak over shoot pos = 22% = 0.22 Damping ratio Zeta

Q: The following are the correct sign conventions for analyzing circuits using Kirchhoff's Laws EXCEPT:

A: The direction of current travelling in a circuit can be given as the positive potential as the…

Q: Current Attempt in Progress What are the (a) magnitude and (b) direction (up or down) of current i…

A: The given circuit isThe value of each resistance is ⇒R=5.4 Ω.The emf of each battery (i.e of ideal )…

Q: If the peak to peak voltage is equal to 20 . How much the RMS value of the voltage!?

A: The circuit this is excited the use of alternating supply is referred to as an AC Circuit. The…

Q: Using the Circuit below, determine the following: 1. The Power taken by the 3 ohm resistor 2. The…

A: This problem comes under electrical network theory . It is a problem based on the concept of…

Q: Voltage (V) 120 100 80 40 20 0 0 30 Time (us) The load must be predominantly resistive. The average…

A: Peak current is 2A.Peak Voltage is 100V.Both waveforms are triangular.

Q: a. For the DC circuit is shown in Figure 5, determaine the following: i. If i-SA, find vị and i, ii.…

A: Find the current and voltage vi and ix and iy  If the condition are given.  We are solving this…

Q: a) The transformer has a turns ratio of 9.45, what is the dc load voltage without considering the…

A: Given Circuit:   To determine: a) The transformer has a turns ratio of 9.45, what is the dc load…

Q: Can you help with subparts 11a-11c Consider the electric circuit in the figure below with the…

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Q: B. H.

A: Bulb brightness depends on current flowing through the bulb  When current is more, brightness is…

Q: a in the plant at 70% capacity factor is bris MWA 90 SET 50 % Time 100 500 00 (b) 10 MW (d) 50 MW…

A: we need to determine reserve capacity.

Q: Using Kirchhoff’s Law, determine the load currents (IA, IB, IC, ID, IE, IF, and IG).

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Q: (a) Impedance (in both polar and Cartesian forms) of parallel branches: Zp =

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Q: Measure currents for unbalanced load

A: In the given circuit, the 3-phase source(s) and load element(s) both are connected in star-form.

Q: with in 10 ahmresistor and A capacity of an 120NF are Circult. acapacitor Connec ted g00 -yolt a)…

A: In this question we need to find a time constant and current in the circuit for given condition.

Q: A voltage so0rQ of 200v is oonneted ar0oss the series combination o resistane f 20 ohms, indeuctance…

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Q: 500 2. 5 V 10 kQ

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Q: The circuit diagram below shows a generator source supplying three loads through a resistance…

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Q: circuit in which R= 10 ohms and L= 0.1 Henry. This is energized by a 24 volt DC source. If the…

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Q: Urgent please In the circuit shown in the figure, the RL load is connected to a 20 V source when…

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Q: P2(W) 8.78W 13.4W Test E2(V) 120V 12(A) 29A Open-circuit Short- circuit Primary 6.85V 2A P1(W) 7.69W…

A: From the given data: transformer voltage ratings are secondary side voltage=E2=120 V primary side…

Q: .Three resistances have the following ratings : R1= 35+ 5% R2= 23+ 3% R3= 45±5% Determine the…

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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.