According to the five prevention requirements,the opening and closing of the handcart will be locked based on the handcart position and switch status.Taking a reclosing failure accident of a 35kV VN1 type switch as an example,this paper explores the reclosing signal and timing coordination of the locking auxiliary switch of the switch handcart,and proposes a solution for similar faults in the switch handcart.
Urban distribution networkVN1 type switchlocking coilreclosing singal
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