For complete protection of a 3-phase line

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Examoogle · Accepted Answer

Option D: Two-phase and one-earth fault relays are required

Explanation & Concepts:
Practice and solve "For complete protection of a 3-phase line..." for Electrical - Power System. The correct answer is Option D: Two-phase and one-earth fault relays are required. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.

Examoogle · Answer

Option A: Three-phase and three-earth fault relays are required

Examoogle · Answer

Option B: Three-phase and two-earth fault relays are required

Examoogle · Answer

Option C: Two-phase and two-earth fault relays are required

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