| 摘要 |
2099671 9311610 PCTABS00022 A monitoring system for an electrical power control system having a plurality of electrical components operable in electrically conductive and non-conductive states in response to command signals from a system controller. The controller is connected for receiving status signals indicative of the conductive and non-conductive states of selected ones of the electrical components. The monitoring system develops electrical signals representative of preselected conditions of preselected ones of the electrical components, combines the electrical signals with the status signals, and transmits the combined signals to the system controller. The system controller extracts the electrical signals from the combined signals for determining the state of the preselected conditions.
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