Ground wire deicing device capable of combined use

Abstract

A ground wire deicing device capable of combined use is disclosed, which is composed of a gasoline engine generator (1), a three-phase constant current control module (2), a regulation control system (3), a digital voltmeter (4), a digital ammeter (5), a shunt (6) and a wrapped enamel-insulated wire (7), wherein, the gasoline engine generator (1) is connected with an input end of the three-phase constant current control module (2). The regulation control system (3) is connected with a control signal end of the three-phase constant current control module (2). The enamel-insulated wire is wrapped on the ground wire prior to the icing of overhead ground wire of power transmission line and is accessed to the ground wire deicing device subsequent to the icing of overhead ground wire. Heat is generated by the ground wire after current passes through the ground wire to thereby melt the ice. Once the deicing current exceeds 50A, more than two devices can be combined for simultaneous use. The invention: 1) can deice the overhead ground wires in various models; 2) can adjust the range of the deicing current; 3) can use the device in a combined manner; 4) solves the difficult problem of power source; and 5) reduces risk.

Description

technical field

[0001] The invention belongs to the technical field of electrical engineering, and in particular relates to a ground wire melting device which can be used in combination. The device is suitable for the ice melting treatment of overhead ground wires of power transmission lines, so as to prevent the overhead ground wires of power transmission lines from breaking and falling due to ice coating. Cause faults such as tripping of transmission lines on the conductors. Background technique

[0002] In recent years, due to the impact of freezing disasters, a large number of ground wire disconnection accidents of transmission lines have occurred frequently. For example, in the ice disaster that occurred in Hunan, China in 2008, there were 322 broken ground lines of 500kV transmission lines, 432 broken lines of ground lines of 220kV transmission lines, 1017 broken lines of ground lines of 110kV transmission lines, and 296 broken lines of ground lines of 35kV transmissio...

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