Digital Protection: Protective Relaying from Electromechanical to Microprocessor
Contains almost all the topics connected with protection schemes. Includes chapters on fundamental and basic theory of protection schemes, definition of various terms, different types of protective relaying schemes, generalized mathematical theory of protective relay, detailed studies of electromechanical, electronics, static and digital relaying schemes, and much more.
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3-phase algorithm amplitude comparator angle admittance Apparat bus voltage carrier current circuit breaker complex connected differential relaying scheme digital filters digital protection digital relaying directional relay distance relaying scheme EHV/UHV Transmission Line equation fault current fault impedance frequency functions ground fault ground relay harmonic component hence High Speed IEEE IEEE Trans input signals internal fault Kalman Filtering L.P. Singh LG fault line current MHO's relay microprocessor negative sequence normal obtained OC relay overcurrent relay percentage differential relay phase angle phase comparator phasor plane impedance relay point of fault power system network Power System Protection Proc protective relay quadrilateral characteristics reactance reactance relay relay operation relay point relaying scheme samples sequence current short circuit shown in Fig static relays stator switch synchronous Syst three-phase threshold characteristics torque transformer transmission line trip command types of faults voltage and current winding wire pilot Z-plane zone