The current a motor is operating at under full load at rated voltage is known as _______ a. LRA b. nominal amps c. FLA d. FLV

The correct answer is c. FLA (Full Load Amps).

Explanation:

Full Load Amps (FLA) refers to the current that a motor draws when it is operating under full load conditions at its rated voltage. This is an essential parameter for selecting motor circuit protection devices and ensuring that the motor operates within its designed electrical limits. Knowing the FLA helps in determining the appropriate circuit breaker or fuse rating necessary to protect the motor from overload conditions.

In contrast:

• LRA (Locked Rotor Amps) is the current drawn by the motor when it starts up and the rotor is not yet turning.
• Nominal amps generally refers to an average or typical rated current, which may not represent the full load condition.
• FLV (Full Load Voltage) is not a standard term used in motor ratings.

Therefore, understanding these concepts is crucial for anyone working with electric motors, whether in maintenance, installation, or design.