An electrical inspection method and device for non-destructive testing of multi-type transmission lines
A transmission line, non-destructive testing technology, applied in measuring devices, measuring current/voltage, measuring electrical variables, etc., can solve problems such as unconsidered and not widely used power grid implementation, inconvenient judgment and analysis of transmission lines, etc., to prevent damage. , Guaranteed safety and convenient selection of the effect of the measurement section
Active Publication Date: 2022-04-01
上海科海华泰船舶电气有限公司
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However, this electrometric device is only suitable for high-voltage direct current transmission lines. It only judges the electric field signal collected by the sensor, and does not take into account the influence of environmental information such as buildings under the UHV transmission line, air temperature and humidity on its strong electromagnetic field environment. At the same time, The electric inspection device and electric inspection method can only know whether the inspected electric circuit is safe through the alarm signal, but cannot know the voltage information of the transmission line, which makes it inconvenient for the operator to judge and analyze the transmission line.
[0005] At present, there have been many papers on the algorithm of inverse calculation based on information such as environmental temperature and humidity, location information, and electric field strength to obtain the online voltage. At the same time, Chongqing University has also carried out related academic project applications, but this method has not been widely used. In terms of grid implementation
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[0042] The invention provides a method for non-destructive testing of multi-type power transmission lines, comprising the following steps:
[0043] 1) measure the electric field intensity below the transmission line, and input the MCU processing module 4;
[0044] 2) Input the environmental information, location information and transmission line information into the MCU processing module 4;
[0045] The input environmental information includes ambient temperature and humidity, the input location information includes the height and angle of the detection location, and the input transmission line information includes transmission type, transmission level and operation connection mode.
[0046] 3) The MCU processing module 4 judges the power transmission type according to the power transmission line information;
[0047] 4) The MCU processing module 4 performs corresponding electric inspection steps according to the power transmission type, and outputs the electric inspection re...
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The invention relates to a non-destructive testing method for multi-type power transmission lines, comprising the following steps: 1) measuring the electric field strength below the power transmission lines, and inputting it into an MCU processing module; 2) inputting environmental information, position information and power transmission line information into the MCU Processing module; 3) The MCU processing module judges the transmission type according to the transmission line information; 4) The MCU processing module performs the corresponding electrical inspection steps according to the electrical transmission type, and outputs the electrical inspection results, a non-destructive inspection of multi-type electrical inspection of transmission lines The device includes an MCU processing module and a sensor module connected to the MCU processing module, a button module, a display module and a memory, and multiple sets of data are stored in the memory. It has the advantages of electrical inspection and high accuracy.
Description
technical field [0001] The invention relates to the safety inspection of the working environment for fault detection of high-voltage transmission lines, in particular to an electric inspection method and device for non-destructive detection of multi-type transmission lines. Background technique [0002] With the rapid development of the national economy, the power transmission capacity and transmission distance have increased rapidly, and large-capacity, long-distance transmission lines have been put into operation. The transmission voltage has also increased, and the requirements for line safety have become higher and higher. UHV transmission lines generally refer to transmission lines that carry the above voltages. [0003] Parameters such as operating voltage amplitude and phase of overhead transmission lines directly reflect the operating status and health level of AC transmission and distribution lines, and are the main basis for evaluating power quality, calculating tr...
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IPC IPC(8): G01R31/08G01R19/155
CPCG01R31/085G01R19/155
Inventor汪茹田瑾吴飞贺超李洪芹邹睿
Owner上海科海华泰船舶电气有限公司