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Overhead transmission conductor capacity characteristic monitoring system, testing method and device

A technology for overhead transmission wires and monitoring systems, which is applied in the direction of measuring devices, measuring electrical variables, and measuring electricity, and can solve problems such as inability to apply transmission lines

Active Publication Date: 2020-03-24
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a monitoring system, testing method and device for the capacity characteristics of overhead transmission conductors in view of the problem that the traditional new conductor testing technology cannot be applied to transmission lines in actual operation

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  • Overhead transmission conductor capacity characteristic monitoring system, testing method and device
  • Overhead transmission conductor capacity characteristic monitoring system, testing method and device
  • Overhead transmission conductor capacity characteristic monitoring system, testing method and device

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Embodiment 1

[0031] In order to solve the problem that the testing technology of traditional new conductors cannot be applied to transmission lines in actual operation, the present invention provides an embodiment 1 of a monitoring system for capacity characteristics of overhead transmission conductors; figure 1 It is a structural schematic diagram of Embodiment 1 of the monitoring system for the capacity characteristics of overhead power transmission conductors of the present invention; figure 1 As shown, it can include a micrometeorological test device 110 and a system master station 120; it also includes several groups of test loops erected between the transmission line poles and towers and connected to a large current generator; the test loop includes two test loops connected to a large current generator Wires 1 and 2, a data acquisition device 130 respectively arranged on each wire to be tested, and a current testing device 140 arranged on any wire to be tested;

[0032] The micro-met...

Embodiment 1

[0063] Based on the technical solutions of the above embodiments of the monitoring system for the capacity characteristics of overhead transmission conductors, and at the same time in order to solve the problem that the traditional new conductor testing technology cannot be applied to transmission lines in actual operation, the present invention also provides a test for the capacity characteristics of overhead transmission conductors Method embodiment 1; Figure 4 It is a schematic flow chart of Embodiment 1 of the method for testing the capacity characteristics of overhead transmission conductors of the present invention; Figure 4 As shown, the following steps may be included:

[0064] Step S410: the micro-meteorological testing device obtains the environmental parameters of the actual operation of the transmission line, and the system master station obtains the reference value of the carrying capacity according to the environmental parameters;

[0065] Step S420: The main ...

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Abstract

The invention relates to a monitoring system of capacity features of overhead power transmission wires, a test method and a device. The monitoring system comprises a microclimate test device, a system main station and multiple groups of test loops erected between power transmission line towers. Each test loop comprises two to-be-tested wires connecting a heavy current generator, a data acquisition device arranged in each to-be-tested wire and a current test device arranged on any to-be-tested wire. According to the invention, sag features and different wires and migration point temperatures in multiple groups of test loops can be researched and compared; controllable heavy current is generated through the heavy current generator and the current test devices, so precise control on wire temperature is achieved; temperature sag relation curves of wires can be acquired under the current which is changed in a wide range; the migration point temperatures of the wire are further precisely determined; and the monitoring system, the test method and the device are suitable for monitoring of capacity features of all kinds of overhead lines.

Description

technical field [0001] The invention relates to the technical field of high-voltage equipment, in particular to a monitoring system, testing method and device for capacity characteristics of overhead power transmission wires. Background technique [0002] The capacity-enhancing wire is a special wire used on overhead transmission lines. It is several types of wires that can transmit more electric energy than traditional steel-reinforced aluminum stranded wires under the condition of increasing the operating temperature level and having the same conductor cross-sectional area. the general term for. So far, a variety of new types of wires have appeared in the world, which can be summarized into two categories: one is to increase the transmission capacity of the wire, and the temperature of the wire is increased, but the strength of the material used as the conductive part does not decrease and remains Focusing on the total breaking force close to normal temperature, such as a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 李斌王国利刘磊罗勇芬刘良帅高超杨芸厉天威李敏唐力
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD