Power transmission line monitoring device metering system and method in field environment

A technology for monitoring devices and transmission lines, applied to measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve problems such as difficult to popularize and use, limited measurement accuracy and application range, expensive devices, etc., and achieve strengthened quality control , Improve the ability of accident prediction and investigation, improve the level of safety production and the effect of maintenance work efficiency

Active Publication Date: 2017-02-15
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The existing device is very expensive, and due to factors such as distance and climate, the entire measurement accuracy and application range are greatly limited, making it difficult to popularize and use

Method used

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  • Power transmission line monitoring device metering system and method in field environment
  • Power transmission line monitoring device metering system and method in field environment
  • Power transmission line monitoring device metering system and method in field environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] As shown in the figure, the metering system of a power transmission line monitoring device provided in this embodiment includes a vibration excitation module 1, a vibration measurement module 2, a test interface 3 and a vibration controller 4;

[0057] The vibration excitation module is used to provide a vibration source to the online monitoring device; the vibration measurement module is used to detect various parameters of the vibration source excited by the online monitoring device; the test interface transmits the measurement data to the vibration controller for data deal with.

[0058] The vibration excitation module includes a vibration table, a sensor, a vibration controller, a power amplifier and a cooling system;

[0059] The vibrating table is provided with a sensor for obtaining excitation vibration parameters; the vibration controller is connected with the sensor; the power amplifier is connected with the vibration controller; the cooling system is respectiv...

Embodiment 2

[0080] The on-line detection system for breeze vibration of overhead transmission lines provided in this embodiment uses the bending amplitude method as a standard method for measuring wind vibration of ground conductors. The definition of the bending amplitude method is shown in Figure 2. Measure the bending amplitude of the wire relative to the clamp at a distance of 89 mm from the exit of the clamp, and use this value to measure the dynamic bending strain of the wire at the exit of the clamp as a standard for measuring the vibration of the wire method. Using the measurement method of relative amplitude to measure the damage degree of the conductor by the breeze vibration has been proved to be a practical method for measuring the vibration of the conductor at the suspension clamp.

[0081] The parameters of the breeze vibration online monitoring device provided in this embodiment are as follows:

[0082] Amplitude measurement range: According to the type of ground wire to b...

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Abstract

The invention discloses a power transmission line monitoring device metering system in a field environment. The system includes an excitation module, a vibration test module, a test interface module and a vibration control instrument; the excitation module is used for providing a vibration source for an on-line monitoring device; the vibration test module is used for detecting parameters of vibration of the on-line monitoring device excited by the vibration source; and the test interface transmits measured data to the vibration control instrument for data processing. The power transmission line monitoring device metering system in the field environment provided by the invention can enhance quality control of power transmission line breeze vibration on-line monitoring device in a lab environment, pushes reliable and effective development of state maintenance, improves a capability of technical control of state maintenance measurement equipment, enhances supervision of accuracy and reliability of the measured data of the power transmission line breeze vibration on-line monitoring device, effectively improves accident pre-judging and troubleshooting capability, and improves the safety production level and maintenance work efficiency.

Description

technical field [0001] The invention relates to the field of power metering equipment, in particular to a metering standard system of a transmission line monitoring device in a field environment. Background technique [0002] When the wire is blown by the breeze, it will produce periodic vibration, which is called breeze vibration. It is characterized by small amplitude, generally no more than 10mm; the frequency range is (5-100) Hz, and the mode shape is a sinusoidal beat frequency wave; the vibration probability is very high, and it is generally believed that the wire is always in a state of breeze vibration. The terrain of the line and the size of the span have a great relationship with the breeze vibration. The vibration of the large-gage cross-river (sea) line is relatively strong. Especially at the exit of the wire clip on the wire, because it is in a tortuous state for a long time, if no anti-vibration measures are taken, a large dynamic bending strain will be gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00
Inventor 梁星侯兴哲周孔均吴华周玮周全赵福平陈文礼米思蓓李永福王三强
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST
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