A power switching device in a high-voltage power distribution system

Abstract

The invention provides a power switching device in a high voltage power distribution system. The power switching device comprises roller I having the cross section in a equilateral polygon shape and aroller II having the same dimension as the roller I. conductive terminals I are arranged on all planes of the roller I; conductive terminals II corresponding to the conductive terminals I are arranged on all planes of the roller II; and the roller I is connected by a rotating shaft I and the roller II is connected by a rotating shaft II. Gear wheels I are fixedly arranged at the two ends of the rotating shaft I; gear wheels II are fixedly arranged at the two ends of the rotating shaft II; the gear wheels I and the gear wheels II at the same sides of the gear wheels I are connected by synchronous toothed belts; and the rotating shaft I is connected with a stepping motor. A combined assembly that can drive the roller I and the roller II to make translation when the conductive terminals on the roller I and the conductive terminals on the roller II face each other directly is arranged between the roller I and the roller II. The power switching device has advantages of high safety and great convenience in operation and the like.

Description

technical field [0001] The invention relates to electric control equipment of a high-voltage power distribution system, in particular to a power switching device in the high-voltage power distribution system. Background technique [0002] In the high-voltage power distribution system, due to reasons such as high voltage and thick wires, there are many safety hazards in the switching of distribution power sources, such as arcs, electric sparks, magnetic fields, etc., which are not good for operating equipment and operators. [0003] The traditional knife-type switch, because the distance between the conductive terminals gradually decreases during the contact process, an arc is generated, causing damage to the conductive terminals, and there is a great safety hazard. The reason is that when the knife is closed, the included angle is gradually smaller. The change speed of the included angle corresponds to a relatively small reduction speed of the distance between the two conduc...

AI Technical Summary

Problems solved by technology

[0002] In the high-voltage power distribution system, due to reasons such as high voltage and thick wires, there are many safety hazards in the switching of distribution power sources, such as arcs, electric sparks, magnetic fields, etc., which are not good for operating equipment and operators.

[0003] The traditional knife-type switch, because the distance between the conductive terminals gradually decreases during the contact process, an arc is generated, causing damage to the conductive terminals, and there is a great safety hazard. The reason is that when the knife is closed, the included angle is gradually smaller. The change speed of the included angle corresponds to a relatively small reduction speed of the distance between the two conductive terminals, resulting in a longer time for the two conductive terminals to be in contact, and the conductive terminals cannot be in contact quickly, which is the main cause of potential safety hazards in the power switching device. Reasons, there are some defects, such as unreliable remote control, heat dissipation problems, insulation problems, etc.

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