MICROPROCESSOR-BASED PROTECTIVE RELAY

Abang, Paul. A.; Onwughalu MarkAnthony K.

Authors

Abang, Paul. A. Department of Electrical Electronic Engineering Technology, Federal Polytechnic Oko, Anambra State, Nigeria.
Onwughalu MarkAnthony K. Department of Electrical Electronic Engineering Technology, Federal Polytechnic Oko, Anambra State, Nigeria.

Abstract

Protective relays are vital components in electrical power systems, designed to detect faults and initiate isolation of affected sections. Traditional relays—electromechanical and static—have limitations in speed, flexibility, and adaptability. The advent of microprocessor-based protective relays (MBPRs) revolutionized protection schemes by introducing programmability, digital signal processing, and enhanced reliability. Microprocessor-based protective relays have revolutionized power system protection by replacing traditional electromechanical and solid-state relays. These relays utilize Digital Signal Processor (DSP) algorithms to enhance accuracy, speed, and reliability in fault detection. The paper reviews recent advancements and challenges in implementing DSP-based protection schemes. The integration of MPRs in modern power systems underscores their importance in ensuring grid stability and safety.

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MICROPROCESSOR-BASED PROTECTIVE RELAY

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