If intermittent electrical issues occur, which action should you take?

If intermittent electrical issues occur, which action should you take?

• A. Replace all circuit breakers
• B. Connect a power analyzer and monitor system performance
• C. Disconnect all loads
• D. Increase the load beyond rated capacity

Answer: (B)

When facing intermittent electrical issues, you need data collected over time to see what’s happening as the problem occurs. A power analyzer with data logging lets you monitor key electrical parameters—voltage, current, phase angles, power factor, harmonics, flicker, and transient events—while the system is operating. This lets you capture sporadic events and correlate them with equipment actions, loads turning on or off, or switching events. With detailed history and timestamped logs, you can pinpoint patterns and identify the root cause, such as a marginal connection, a loose term, or an intermittent fault that only shows up under certain conditions. The other options don’t help you diagnose effectively. Replacing all circuit breakers is unnecessary and could mask or miss the underlying issue. Disconnecting all loads removes the very condition under which the intermittent fault occurs, so you lose the data you need to analyze. Increasing the load beyond rated capacity is unsafe and could damage equipment; it also won’t reveal the cause of the intermittent problem and could trigger further faults. Using a power analyzer to monitor performance provides objective, actionable data to identify and confirm the source of intermittent issues.

When facing intermittent electrical issues, you need data collected over time to see what’s happening as the problem occurs. A power analyzer with data logging lets you monitor key electrical parameters—voltage, current, phase angles, power factor, harmonics, flicker, and transient events—while the system is operating. This lets you capture sporadic events and correlate them with equipment actions, loads turning on or off, or switching events. With detailed history and timestamped logs, you can pinpoint patterns and identify the root cause, such as a marginal connection, a loose term, or an intermittent fault that only shows up under certain conditions.

The other options don’t help you diagnose effectively. Replacing all circuit breakers is unnecessary and could mask or miss the underlying issue. Disconnecting all loads removes the very condition under which the intermittent fault occurs, so you lose the data you need to analyze. Increasing the load beyond rated capacity is unsafe and could damage equipment; it also won’t reveal the cause of the intermittent problem and could trigger further faults.

Using a power analyzer to monitor performance provides objective, actionable data to identify and confirm the source of intermittent issues.