Physics · Power System Protection
In a three-phase power system, which type of relay is best suited for detecting a phase-to-phase fault where the currents in the affected phases are significantly higher than normal?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Overcurrent relay✓
- 2Differential relay
- 3Directional earth-fault relay
- 4Under-frequency relay
Correct answer
Overcurrent relay
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