| 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 start function, if the normal system supply voltage is 450 VAC, to what value would the normal supply voltage have to drop to trigger the automatic starting of the emergency generator? |
| A) The voltage must drop to 247.5 VAC. |
| B) The voltage must drop to 270.0 VAC. |
| C) The voltage must drop to 382.5 VAC. |
| D) The voltage must drop to within a range from as low as 270 VAC to as high as 382.5 VAC. |
