13.3 Fig. 13.28 shows a transmission network. The pu reactances of the equipments are as shown. The voltage behind transient reactance of generator is 1.10 pu and the voltage of infinite bus is 1.0 pu. The system is transmitting 1 pu power when fault occurs at the point F. Determine (a) transfer reactance for prefault, during fault and post fault condition (b) critical clearing angle. [(a) 0.5.2.0.0.75 pu(b) 67.14°] X'd=/0.13 j0.09 -36 j0.09 j0.32 j0.32 j0.09 F रह j0.09 Fig. 13.28 j0.12 Infinite bus

Q: Problem 5 Consider the system shown in the single-line diagram of Figure (3). All reactances are…

A: Single Line Diagram: A single-line diagram, often known as an SLD, is an electrical diagram or…

Q: A fault occurs at bus 4 of the network shown in Figure Q3. Pre-fault nodal voltages throughout the…

A: x=1y=7Note: reactance of element right to bus 4 is not given. Hence we will not consider that in…

Q: Describe the importance of fault analysis in power systems and the methods used for fault detection.

A: Here we need Describe and explain the concept of fault analysis in power systems and the methods…

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Q: b) A fault occurs at bus 2 of the network shown in Figure Q3. Pre-fault nodal voltages throughout…

A:

Q: Figure 2 shows the circuit of a simple power system. The ratings of the generators, transformers and…

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Q: Which of the following assumptions were made for analysing symmetrical faults? Network assets…

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Q: Problem #2: A transformer is fed from a 100 MVA, 18 kV generator via a 5-cycle breaker. Generator…

A: Given S =100 MVA V =18 KV Xd'' =18%Xd' =25%Xd =120%

Q: 1. The subscript d in the generator subtransient reactance refers to: 1. Generator 2. Generator 3.…

A: Subtransient:  It occurs extremely fast- faster than even transient. The subtransient time period…

Q: Q.3 When a line-to-ground fault occurs, the current in faulted phase 'a' is 100A. The zero-sequence…

A:

Q: The source impedance at a 15.47kV distribution substation bus is 0.4 + j1.5 ohms per phase.…

A: source impedance = 0.4+ j 1.5 ohm V=15.47 kV

Q: Figure 2 shows the circuit of a simple power system. The ratings of the generators, transformers and…

A:

Q: Describe the principles of fault detection and location in power distribution systems and the…

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Q: 13. _______ current attempts to return to the source over any available conductive path. A. Direct…

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Q: Describe the concept of fault current analysis in power systems and its role in protecting…

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Q: Explain the concept of fault analysis in power systems. How is fault current calculated, and what…

A: To explain:the concept of fault analysis in power systems. How is fault current calculated, and what…

Q: Describe the process of fault current analysis in power systems and its significance in protecting…

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Compensation Techniques

The compensation techniques are the methods that are employed in the electrical control systems to enhance the performance of the system. The performance are generally affected by the factors like lag in the compensating devices, slow response of the system of the components like sensors used in the control system. The basic compensation technique involves lag compensation, lead compensation or the combination of the both.