| 摘要 |
An electrical power system includes one or more protective devices in a plurality of electrical distribution panels. Each protective device has a power switch connectable between an electrical power source for the system and an electrical load and an operating-mode control switch whose state determines the power switch's operating mode. A computer is remotely-located relative to the electrical distribution panels. Each of the protective devices is operable such that: if the operating-mode control switch is in a first state, the power switch opens and closes according to instructions stored within the protective device; and if the operating-mode control switch is in a second state, the power switch is controllable based on instructions from the remotely-located computer. |
