Ground wire deicing device capable of combined use

A ground wire melting and enameled wire technology, which is applied to the installation of cables, overhead installation, electrical components, etc., can solve the problems of limited distance range of melting ice, heavy workload, and difficulty in obtaining power supply for melting ice, so as to reduce safety risks, The effect of reducing tedious work

Active Publication Date: 2009-12-16
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This ice-melting method has a heavy workload, it is difficult to obtain ice-melting power, and the distance range of ice-melting is limited

Method used

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  • Ground wire deicing device capable of combined use
  • Ground wire deicing device capable of combined use

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: The ground wire melting ice device that can be used in combination in this embodiment of the present invention, see figure 1 , the gasoline generator 1 adopts the BVT-3000A generator produced by Taiyo Electric Manufacturing Co., Ltd. of Japan, with a rated power of 22.0kVA, a maximum output power of 22.5VKA, a power factor of 0.8, a frequency of 50HZ, a rated voltage of 220 / 380V, and a rated current of 30.3A, speed 3000 rpm; three-phase constant current control module 2 adopts MSJ-HL-250 constant current control module of China Zibo Yinhe High Technology Development Co., Ltd.; regulation control system 3 is developed by China Hunan Huicui Power Technology Co., Ltd. HYKZ-0820A control circuit board; digital voltmeter 4 adopts XL5235V-2 digital voltmeter from Shaanxi Xieli Electronics Co., Ltd.; digital ammeter 5 adopts XL5235A-1 digital ammeter from Shaanxi Xieli Electronics Co., Ltd.; shunt 6 adopts Shanghai Jiangbai Electronic Technology Co., Ltd. FL-275m...

Embodiment 2

[0024] Embodiment 2: The gasoline generator 1, the three-phase constant current control module 2, the adjustment control system 3, the digital voltmeter 4, the digital ammeter 5, the shunt 6 and the winding enameled wire 7 of this embodiment are drawn from the same materials as in the embodiment 1. The connection relationship between them is also the same as in Embodiment 1. The difference is that in this embodiment, there are two ground wire deicing devices that can be used in combination. The two devices are used in combination, and the connection method is as follows: figure 2 circuit shown. The connection method is simple, just connect the positive pole / negative pole of one of the three-phase constant current control modules 2 with the positive pole / negative pole of the three-phase constant current control module 2 of another device.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/16
Inventor 陆佳政方针李波张红先蒋正龙
Owner STATE GRID CORP OF CHINA
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