| As shown the illustration of a cycloconverter for an AC synchronous propulsion motor, what statement is true concerning the operating motor frequency? EL-0157 |
| A) The operating motor frequency is generally limited to less than one-third of mains line frequency. |
| B) The operating motor frequency is generally limited to three times the mains line frequency. |
| C) The operating motor frequency is generally not limited regardless of the mains line frequency. |
| D) The operating motor frequency is generally limited to that equal to the mains line frequency. |
