What are some key parameters you should monitor for motor protection?

Monitoring key parameters is essential for ensuring the safe and reliable operation of electric motors. The correct answer encompasses the critical aspects that can indicate the health and performance of a motor.

Current is vital as it reflects the load being drawn by the motor. Excessive current can indicate issues such as overload, short circuits, or mechanical failure within the motor itself. Voltage monitoring is equally important because fluctuations can lead to operational inefficiencies and potential damage. Temperature is a crucial parameter since overheating can lead to insulation breakdown and catastrophic failure. Additionally, monitoring vibrations helps identify mechanical imbalances or impending failures, allowing for preventive maintenance before a complete breakdown occurs.

While the other choices mention parameters that may have some relevance in specific contexts, they do not provide a comprehensive approach to motor protection. Options focusing on physical attributes like weight, size, or appearance are not relevant for ongoing operational integrity. Additionally, monitoring aspects such as brand, warranty, or price doesn't offer insights into the motor's performance or condition. Noise levels and horsepower can provide limited information, but they do not represent as critical and actionable data as current, voltage, temperature, and vibrations do.