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Principles of Power System - Chapter 21: Protective Relays

Here is the topic of this Chapter:

21.1 Protective Relays

21.2 Fundamental Requirements of Protective Relaying

21.3 Basic Relays

21.4 Electromagnetic Attraction Relays


21.5 Induction Relays

21.6 Relay Timing

21.7 Important Terms

21.8 Time/P.S.M. Curve

21.9 Calculation of Relay Operating Time

21.10 Functional Relay Types

21.11 Induction Type Over-current Relay (non-directional)

21.12 Induction Type Directional Power Relay

21.13 Induction Type Directional Overcurrent Relay

21.14 Distance or Impedance Relays

21.15 Definite – Distance Type Impedance Relay

21.16 Time – Distance Impedance Relay

21.17 Differential Relays

21.18 Current Differential Relay

21.19 Voltage Balance Differential Relay

21.20 Translay System

21.21 Types of Protection



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