A code letter D is marked on a motor nameplate. What is its locked-rotor kVA per horsepower?

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Multiple Choice

A code letter D is marked on a motor nameplate. What is its locked-rotor kVA per horsepower?

Explanation:
The code letter on a motor nameplate represents the locked-rotor kVA per horsepower, a measure used to estimate starting current and torque. Each letter corresponds to a specific range of kVA per HP. For the letter D, the standard table assigns a range of 4.0 to 4.49 kVA per horsepower. This means the motor draws about 4.0 to 4.49 kVA of apparent power for every horsepower at locked-rotor. Hence, the correct range is 4.0–4.49 kVA per HP.

The code letter on a motor nameplate represents the locked-rotor kVA per horsepower, a measure used to estimate starting current and torque. Each letter corresponds to a specific range of kVA per HP. For the letter D, the standard table assigns a range of 4.0 to 4.49 kVA per horsepower. This means the motor draws about 4.0 to 4.49 kVA of apparent power for every horsepower at locked-rotor. Hence, the correct range is 4.0–4.49 kVA per HP.

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