| Emergency generators are required to automatically start upon a loss of normal supply voltage, according to 46 CFR, Subchapter J (Electrical Engineering). In conducting a test of the emergency generator automatic transfer of load function, if the normal system supply voltage is 480 VAC, to what value would the normal source output voltage have to rise to trigger the automatic transfer of emergency loads back to the normal power source? |
| A) It would have to rise to a value between from 440 VAC to 460 VAC. |
| B) It would have to rise to a value between from 408 VAC to 456 VAC. |
| C) It would have to rise to 456 VAC. |
| D) It would have to rise to 408 VAC. |
