Question

____ fault analysis is used to calculate the rupturing capacity of circuit breakers

• A. Single line to Ground
• B. Double line
• C. Three phases
• D. Double line to Ground

Hint:

SLG faults often produce the worst-case scenario in terms of current magnitudes, making them suitable for breaker sizing.

Answer 1

The Correct Option is A

Single line to ground (SLG) faults are the most common type of fault in power systems. They are typically used to estimate the maximum fault current and the rupturing capacity of circuit breakers, as they usually produce the highest fault current.