A digital protection control device 9 that acquires a bus voltage by using data from a protection control terminal 8 that converts a voltage detected by a voltage transformer 7 arranged on a plurality of lines 3, a state of a circuit breaker 4 arranged on ...

A protection and control system incorporates status acquisition apparatus (100) for use in monitoring the status of a device in the protection and control system, such as a protection relay in a high voltage electrical circuit. The status acquisition appar...