Physics · Power System Protection
Consider the following distance relays used for transmission line protection: 1. Impedance relay 2. Reactance relay 3. MHO relay 4. Quadrilateral relay Which of these relays show no underreach on arcing faults?
- 12 and 4✓
- 21 and 2
- 31 and 4
- 42 and 3
Correct answer
2 and 4
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