Direct current ice-melting short-circuit control structure

Abstract

The invention discloses a direct current ice-melting short-circuit control structure. The direct current ice-melting short-circuit control structure comprises an iron tower and three power transmission lines. The three transmission lines are suspended on the iron tower through insulator strings, and cable down leads are connected to the lower parts of the power transmission lines. Horizontal protective insulators are fixedly connected between the cable down leads and the iron tower, and a plurality of porcelain column insulators are fixed to the side edge of the iron tower. Detachable and foldable control levers are movably connected between the iron tower and the bottom ends of the cable down leads, a short-circuit wire fixed to the porcelain column insulators is connected between the three control levers, and a safety distance exists between the short-circuit wire and the iron tower. By arranging the three detachable, foldable and retractable control levers on the iron tower, the control levers are connected by the short-circuit wire, the purpose of being connected or disconnected with the power transmission lines in a short-circuit mode is achieved by the contraction or extension of the control levers, and a good use effect is obtained.

Description

technical field [0001] The invention relates to a direct current ice melting device, in particular to a direct current ice melting short-circuit control structure, and belongs to the technical field of transmission line equipment. Background technique [0002] There are two main methods for the existing DC ice-melting device to melt the ice of the transmission line. One is to directly energize the transmission line. The specific ice-melting steps are to first stop the transmission line, and then the electric worker climbs to the transmission line. Install the cable down-conductor on the line to short-circuit two or three phases of the three-phase transmission line, and finally energize and melt the ice. This solution can indeed remove ice on the transmission line, but this solution requires the operator to climb to the transmission line to install the cable down-conduct in harsh environments, which has a large safety hazard and takes a long time to perform the short-circuit ...

AI Technical Summary

Problems solved by technology

However, this solution needs to install electric heating elements on the lines that may be covered with ice. The cost is high, the time is long, the human resources are large, the work efficiency is low, the risk of personnel is high during operation, and the power required for melting ice is also large.

Images