Question

A three phase fault in a power system is
1. The most common type of fault
2. Usually the most severe type of fault
3. Results in equal magnitude for positive and negative sequence currents
4. Results in equal value for positive, negative and zero sequence currents

Answer 1

Correct Answer - Option 2 : Usually the most severe type of fault

In a power system, three phase faults are most severe type of fault whereas single phase faults are the most common type of fault.