Conversion drum type three-position switch device and control method and system thereof

Abstract

The invention discloses a conversion drum type three-position switch device. The conversion drum type three-position switch device comprises a first contact, a second contact, a third contact, a fourth contact, a fifth contact, a sixth contact, a seventh contact and an eighth contact which are located on a plurality of connection rods. A first switch and a second switch which are located on a middle conversion drum are included. The first switch and the second switch are two electrically isolated contact fingers respectively and coaxially rotate along with the middle conversion drum. The first switch and the second switch which rotate coaxially and are electrically isolated are designed on the middle conversion drum, along with the state change of the middle conversion drum, the first switch and the second switch are connected with different contacts, and a circuit structure which rotates coaxially and is electrically isolated is arranged in the switch device. Wiring requirements of different circuits can be met without additionally arranging wires or copper bars according to the wiring requirements, and other circuits can be more flexibly and externally connected. The invention also correspondingly discloses a control method and a control system of the conversion drum type three-position switch.

Description

technical field [0001] The invention relates to the field of electrical component design, in particular to a conversion drum type three-position switch device and a control method and system thereof. Background technique [0002] In urban rail transit, it often involves the switching of lines between different power sources. This switching is generally realized by switching drum-type three-position switches. However, the currently widely used conversion drum-type three-position switch can only achieve a certain specific function, and the switch itself cannot meet the voltage requirements of different high-voltage circuits; Copper bars, but the distance between the internal transfer drum and the contacts of the current transfer drum type three-position switch is relatively small, and it is difficult to retrofit and install copper bars or wires. [0003] Therefore, how to provide a solution to the above technical problems is a problem that those skilled in the art need to sol...

AI Technical Summary

Problems solved by technology

However, the currently widely used conversion drum-type three-position switch can only achieve a certain specific function, and the switch itself cannot meet the voltage requirements of different high-voltage circuits; Copper bars, but the distance between the internal conversion drum and each contact of the current transfer drum type three-position switch is relatively small, and it is difficult to retrofit and install copper bars or wires

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