| 摘要 |
PROBLEM TO BE SOLVED: To simplify a configuration to transmit information on a breaker.SOLUTION: A breaker comprises: a switch circuit 16 provided between a three-line input terminal group 12 and a three-line output terminal group 14; a current detector 58 for detecting current flowing through a power path between the three-line input terminal group 12 and the three-line output terminal group 14; a voltage detector 56 for detecting voltage arising on the power path; and a radio unit 64 for communicating with a breaker control device. The switch circuit 16 turns on or off on the basis of current detection information by the current detector 58. The radio unit 64 transmits detection information on the basis of the current detection information and voltage detection information by the voltage detector 56 to the breaker control device. The radio unit 64 receives control information from the breaker control device, and the switch circuit 16 turns on or off on the basis of the control information.SELECTED DRAWING: Figure 3 |
