Electrical Engineering · Power Systems Protection
For complete protection of a three-phase line, which of the following is required?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1one phase and two earth fault relays are requi red
- 2two phase and one earth fault relays are required✓
- 3three phase and two earth fault relays are required
- 4three phase and three earth fault relays are required
Correct answer
two phase and one earth fault relays are required
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