: Focus on internal faults, overexcitation, and loss of excitation.
: Only operates if power flows in a specific direction (e.g., toward a bus). 4. Modern Technology Power System Protective Relaying
: Uses analog electronics for better precision and smaller footprints. : Focus on internal faults, overexcitation, and loss
: Only the faulted section should be isolated to minimize outages. : Focus on internal faults