(5) Discuss the similarities and differences of relay construction between Directional BlockingPilotProtection (Figure and Impedance Blocking Pilot Protection (Figure ).FigureFigureTrip4 KM42 1235 KM5The construction of each relay with Directional Blocking Pilot ProtectionTrip+SendingUKSKM1Z IIIt IIIZIZ II↑t IIKM2Receivinghe construction of each relay with Impedance Blocking Pilot Protection

Directional Blocking Pilot Protection (Top Diagram) Components:I1, I2, I3: These are likely current…

Answered: (5) Discuss the similarities and…

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter10: System Protection

Section: Chapter Questions

Problem CCSQ

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Similar questions

What is a grounding conductor? What is a grounding conductor (equipment)? What is a grounding electrode conductor? What is an outlet?
a. With aid of Figure QB1, analyse the principle of the three-zone directional distance protection. If a fault occurs in the F point, show the main protection relays and back-up relays respectively. X-1 X-2 zone-2 X-3 zone-1 X-4 zone-1 zone-3 2 Zone-2 F zone-2 zone-1 zone-3 zone-1 zone-2
A- Define Impedence. Mention the difference between Impedence and Resistance ? B- A coaxial cable's shiled diameter is 0.4cm and the inner conductor has a diameter of 0.02cm. What is the characteristic impedance of that cable? C- What is meant by impedance matching? Why is impedance matching is needed?
Using Nyquist criterion, how counter-clockwise encirclements of -1 made by mapping are in the given system below?
What is the purpose of phase failure relays?
:-What is the amount of power saving in the AM-DSB-SC, when compared to other types of AM systems?
A radial system shown in figure below is fed from a supply of 220 Volt. All impedance values are referred to 220V side (3 phase). When a three phase fault occurs at E, relay D will operate with 0.4 second longer than relay at E. Determine TSM (Time Setting Multiple) at A, B C and D by taking discrimination time (DT) equal to 0.4 second, and TSM at C is already set equal to 0.05. The protection data is as given in figure while IDMT relay characteristic is as in table.
What are the situations where there is no need to use directional OC relays and the situations where directional relays must be used?
Question 1: What is the "load encroachment" region defined on the R axis in the quadrilateral characteristic of the distance protection relay in Figure 1? Why is "load encroachment" region is defined? tarvard tix PDIS3 PDIS2 PDIS1 AngLod Load eneroachmert - Ristod Load eneroachment R forward t reverse Figure 1: Quadrilateral Characteristic
Write True or False and correct the wrong statement (Ans 7. The unit nearest to the cross-arm in tower has maximum voltage across it and hence it likely to be repaired. 8. Corona losses in DC Transmission supply 10 times more than AC transmission. 9. Irregularity Factor (mv) has value of 0.9 to 0.95 in rough conductor. 10.Power losses in corona dissipated in the form of conductor vibrating. 11. The corona loss on a particular system at 50 Hz is 1 kW/Km per phase but for the same system but 60 Hz will be 1.5 kW/Km per phase. 12.If the number of poles in 3ph 11kV transmission line is 80, then we need 420 discs to suspend the conductor on these poles.
18. Why are signals that are in quadrature said to be orthogonal?A. They do not interfere with each other.B. They split into two paths. C. They can shift to one of two predetermined phase states.4D. The amount of data that can be transmitted over time
a) Name 3 examples or types of Transient Faults on Transmission Lines? b) What is the reach of each of the Zones in a Distance Protection Scheme? c) Name 3 types of Protection Schemes? d) What are 3 types of Distance Relays? e) What is the ANSI Standard Device Number for an Instantaneous Overcurrent Relay and the Device Number for a Time Overcurrent Relay which operates on a time delay?

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