Novel multipath high-voltage switch device

Abstract

The invention relates to the technical field of high-voltage test equipment, in particular to a novel multi-channel high-voltage switch device. The device comprises an insulating bottom plate arrangedat the bottom and an insulating rotary disc rotatably inserted above the insulating bottom plate, and a stand column is fixed at the edge of the insulating bottom plate. The device also comprises a nut, a baffle and a handle, wherein the baffle is fixed through a nut fastened to the top of the stand column, the insulating rotary disc is integrally located between the baffle and the insulating bottom plate, and a rotary shaft arranged on the insulating rotary disc upwards penetrates through the baffle and is fastened to the handle through a screw. According to the invention, the defects in theprior art can be overcome, the conductor connection mode is changed, the sparking and discharging phenomenon between conductors caused by long-time use or environmental reasons is avoided, the size of the device is reduced, and safe and reliable line connection is provided for passing of large current and high voltage during cable testing.

Description

technical field [0001] The present invention relates to the technical field of high-voltage testing equipment, and more specifically, relates to a novel multi-channel high-voltage switchgear. Background technique [0002] At present, in the cable testing process, most high-voltage transfer switches are converted through mechanical contact such as torsion force and elastic force, and the conductor connection is completed through the contact point or contact surface to form a voltage or current path. These structures are easy to form point contact or line contact. After a period of use, because the contact point often passes a large current and is affected by the climate or environment, the contact point or contact surface will form an oxide layer, resulting in a gap between the two metal conductors. Poor contact will cause discharge and ignition, which will affect the cable fault test results in the slightest, and cause internal discharge in the equipment in severe cases, end...

AI Technical Summary

Problems solved by technology

These structures are easy to form point contact or line contact. After a period of use, because the contact point often passes a large current and is affected by the climate or environment, the contact point or contact surface will form an oxide layer, resulting in a gap between the two metal conductors. Poor contact will cause discharge and ignition, which will affect the cable fault test results in the slightest, and cause internal discharge in the equipment in severe cases, endangering personal safety

[0003] For safety reasons, sufficient direct breakdown distance and creepage distance should be maintained between two metal conductors with different potentials. In order to maintain sufficient electrical insulation between two metal conductors in traditional conversion devices, only the distance between metal conductors is increased. The distance between the two methods will inevitably cause the conversion device to be too large and difficult to install.

Images