Write the equation, starting at A and going clockwise for the KVL loop

Q: QUESTION TWO Power transformers are used in the power system to change the voltage levels to a level…

A:

Q: Three 100kVA 34.5kV primary 12/6.9kV secondary. Connect the transformers delta-wye. What is the…

A: Given: A transformer with Three 100kVA 34.5kV primary 12/6.9kV secondary. Primary is delta…

Q: In a system of 132 kV, the circuit phase to ground capacitance is 0.2 uF and the circuit inductance…

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Q: 6. Transformers have the capability to step up or step down AC voltage True False

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Q: 11 kV at a power factor of 0.867lagging. Each machine supplies half the total power. The synchronous…

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Q: sformer 1200 KVA, 11000/2200 V, 50 Hz e reactance/phase of the primary winding ar ding values for…

A:

Q: The bridge method commonly used for measuring mutual inductance is: A. wheat stone bridge B. Wien…

A: Given Bridges, A. wheat stone bridge B. Wien bridge C. De Sauty bridge D. Heaviside campbell bridge

Q: The loss of generation in a generator which is meeting a huge amount of demand in small grid is…

A: In small power plant loss of generation is directly affect the load and after the loss of generation…

Q: Zero sequence currents can flow from a line into to a transformer bank if the windings are delta /…

A: Zero sequence current will flow into a star winding only when it's natural is grounded.  Zero…

Q: Four conductors meet at a junction. the current are i1= 5sinwt, i2= 3sin(wt + 90) and i3=…

A: The solution can be achieved as follows.

Q: The Scott-T transformers are used to provide a variable voltage output. Select one: O True O False

A: Choose the correct option The Scott T operation are used to provide a variable voltage output.  Is…

Q: There are two loads connected in parallel and powered from a 7200-V source. The first load is 50-kVA…

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Q: 5. Obtain the symmetrical components of a set of unbalanced currents I-1.7 25°, I,=0.761800 and…

A: In this question we will find symmetrical components of current...

Q: A generating station has the following daily load cycle :Time (Hours) 0-66-10 10-12 12–16 16-20…

A: In this question we will solve daily load curve .

Q: A closed loop system is shown in figure below. The system order is 4s+2 +2s +1 14

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Q: Power transformers are used in the power system to change the voltage levels to a level suitable for…

A: We are authorized to answer three subparts at a time. Since you have not mentioned which part you…

Q: KIRCHOFFS METHOD, KVL, SOLVE FOr I, FOR LO0P KLMNK2 K. T02 305h 40V 5V N30V 50 IOV M. Σ

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Q: In long shunt DC generator Series field winding current Ise is equal to

A: -The circuit diagram for long shunt DC generator is given below:

Q: 1. Assume that the circuit shown in Figure 22-2 is connected to a 60-Hz line and has a total current…

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Q: Single Phase and Three Phase Principles

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Q: The Scott-T transformers are used to provide a variable voltage output. Select one: True False

A: The scott T transformation are used to provide a variable voltage output?    This statement is true…

Q: What are the branch currents, 12 and 13?

A: The Circuit Diagram is given as:

Q: Generators are often run in parallel because it Keeps stability of supply Gives facility of repair…

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Q: 16 test which do to find the value of stater winding losses (Rs) in * synchronous generator DC test…

A: To find the stator winding losses in the synchronous generator can be found by using the DC…

Q: Write a matrix equation that determines the loop currents. Also solve the system For loop currents…

A: From the circuit we can see that there are 5 meshes and we will apply KVL equation in each mesh by…

Q: 5. Obtain the symmetrical components of a set of unbalanced currents I,-1.3225º, I,-0.86z180º and…

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Q: what will be the total and unit for impedance if the given is 8mA and 9mV?

A: Electrical impedance is the amount of opposition that a circuit presents to current or voltage…

Q: Problems: Fl- A 500 V dc generator supplies a load 800 A at point A through 0.025 2 distributor and…

A: Let the required current be i 500-VA0.025=800+i⇒i=500-VA0.025-800

Q: 7. Three load units A, B, and Care connected in parallel and take currents that are respectively 11…

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Q: winding direction of the secondary winding of the transformers is the same or opposite to the…

A: In this question we will write about voltage induced in secondary of transformer..

Q: The B-l1 is the equation for the positive sequence phase current of the phase

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Q: Adjustment resistance in rotor system will --------when three phase load .decrease Increase O not…

A: Adjustment resistance is also known as external resistance. Purpose of adding external resiistance…

Q: 210⁰ and Ic=980 cis - 60°. Find the negative sequence of phase B current. 11. The phase B current of…

A: In this question we need to find a current in line B

Q: 9. What is the total load in kVA on this transformer? Leeeeeee 0004000 120 load 1 600 120 -240- load…

A: In this question we need to find the total load in KVA on this transformer.

Q: Question No.5 A current transformer has a phase error of +5 degree. The phase angle between the…

A: Given: A current transformer has, Phase error, θ=+5°

Q: Two 300-VA parallel-connected transformers can supply a maximum load of a. 150 VA b. 300 VA C. 450…

A: Two 300 VA parallel connected transformer can supply a maximum load of, equal to the sum of their…

Q: The maximum size overcurrent device for primary only protection of a three-phase 75 kVA transformer…

A:

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.