What condition describes a situation where a motor is operating normally without excessive load?

A motor is said to be "under load" when it is operating normally, meaning it is engaged in its intended task and experiencing some resistance or demand, but not to the extent that it is overburdened. In this state, the motor efficiently converts electrical energy into mechanical energy while maintaining optimal performance.

The "under load" condition implies that the motor is functioning well within its rated capacity, ensuring that it can perform effectively and reliably. This is crucial for preventing overheating and extending the lifespan of the motor.

In contrast, a motor in a "locked rotor" state refers to a situation where the rotor is unable to turn, often causing excessive current draw and potential damage. "No load" describes a situation where the motor is running without any mechanical load, which may lead to inefficiencies. "Fully loaded" indicates that the motor is operating at its maximum designed load capacity, which, while functional, can potentially lead to overheating or premature wear if sustained for long periods.

Understanding these distinctions helps in assessing motor performance and maintaining its health in various operational scenarios.