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A protective relay is defined as an electrical device that is connected between the main circuit and the circuit breaker to:
measure the frequency of the system and regulate power flow
detect faults and control the operation of the transformer
detect faults and initiate the operation of the circuit breaker to isolate the defective section
monitor the system's voltage and adjust the current settings
detect faults and initiate the operation of the circuit breaker to isolate the defective section
Practice and solve "A protective relay is defined as an electrical device that is connected between the main circuit and..." for Part 5 Domain Knowledge - CILMTElectrical 2026. The correct answer is Option C: detect faults and initiate the operation of the circuit breaker to isolate the defective section. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "A protective relay is defined as an electrical device that is connected between the main circuit and..." for Part 5 Domain Knowledge - CILMTElectrical 2026. The correct answer is Option C: detect faults and initiate the operation of the circuit breaker to isolate the defective section. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.