Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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I need answer for part a please 

z/2 z/2 R/2 R/2 X/2 X/2 Vs V. Nominal T model of a Medium Line Circuit Globe Figure 2 (a) The nominal T-circuit of a medium transmission line shown in Figure 2 has series impedance Z divided into 2 equal parts, and shunt admittance Y at the center. Derive its ABCD [A B1[VR parameters in terms of Y and Z to get the relation of = BE- (b) Two requirements for protective relay systems are the speed of response and selectivity. Relays should respond to abnormal conditions in the least possible time, and provide maximum possible service continuity with minimum system disconnection. Assess whether the Time-Grading as well as Current-Grading types of relay system meet these requirements, with reasons. If not, propose a better relay grading system to replace them with supportive arguments. LOAD
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Transcribed Image Text:z/2 z/2 R/2 R/2 X/2 X/2 Vs V. Nominal T model of a Medium Line Circuit Globe Figure 2 (a) The nominal T-circuit of a medium transmission line shown in Figure 2 has series impedance Z divided into 2 equal parts, and shunt admittance Y at the center. Derive its ABCD [A B1[VR parameters in terms of Y and Z to get the relation of = BE- (b) Two requirements for protective relay systems are the speed of response and selectivity. Relays should respond to abnormal conditions in the least possible time, and provide maximum possible service continuity with minimum system disconnection. Assess whether the Time-Grading as well as Current-Grading types of relay system meet these requirements, with reasons. If not, propose a better relay grading system to replace them with supportive arguments. LOAD
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