Switching device, method and system for automatic measurement and control terminal of power distribution network

The invention relates to a switching device, method and system for an automatic measurement and control terminal of a power distribution network. The switching device of the automatic measurement and control terminal of the power distribution network comprises a signal acquisition module which is used for acquiring a signal set in a power distribution network line, a logic control module connected with the signal acquisition module and used for acquiring a logic control signal according to the signal set and a preset model parameter being a model parameter of one of a plurality of automatic measurement and control terminals of the power distribution network, and a driving connection module having a first end connected with the logic control module; a plurality of second ends of the driving connection module are respectively connected with the plurality of automatic measurement and control terminals of the power distribution network in a one-to-one correspondence manner, and the driving connection module is us