What is one of the issues associated with using a vibration analyzer alongside Motor Current Signature analysis?

The selected answer highlights a limitation related to analyzing only one phase of the motor current signature, which can pose a significant challenge when trying to obtain a comprehensive view of the motor's performance. In industrial settings, especially with three-phase motors, it's crucial to assess the performance across all phases to detect faults effectively. If only one phase is analyzed, this could lead to incomplete or misleading results, as it may miss issues that are present in the other phases.

Using both vibration analysis and Motor Current Signature analysis can provide a more holistic view of the motor's health. However, the value of these analyses is maximized when all phases are evaluated. Understanding the complete electrical signature, including potential imbalances or other underlying electrical issues affecting motor performance, could be critical for accurate diagnostics and proactive maintenance strategies.

In this context, while the other options may touch on certain limitations or considerations of vibration analysis or Motor Current Signature analysis, the focus on analyzing only one phase distinctly emphasizes a challenge in achieving a thorough assessment of motor health.