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High-pressure GIS device vibration monitoring system

A kind of equipment and high-voltage technology, which is applied in the field of vibration monitoring system of high-voltage GIS equipment, can solve the problem that the vibration of high-voltage GIS equipment cannot be monitored in real time

Inactive Publication Date: 2015-11-04
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing monitoring methods cannot monitor the vibration of high-voltage GIS equipment in real time

Method used

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  • High-pressure GIS device vibration monitoring system
  • High-pressure GIS device vibration monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A vibration monitoring system for high-voltage GIS equipment provided by an embodiment of the present invention includes:

[0021] The first vibration sensor, the first vibration sensor are arranged on the flange of the high-voltage gas insulated switch, the high-voltage gas insulated switch is connected to the high-voltage GIS equipment, and the first vibration sensor converts the detected mechanical vibration signal into an electrical signal;

[0022] A second shock sensor, on a metal support member of the second shock sensor, the metal support member supports the high-voltage GIS equipment, and the second shock sensor converts the detected mechanical vibration signal into an electrical signal;

[0023] A signal acquisition and amplification module, which amplifies, filters and processes the electric signal sent by the first shock sensor and the electric signal sent by the second shock sensor to obtain a digital signal;

[0024] The transmission module transmits the digital si...

Embodiment 2

[0034] figure 1 It is a schematic diagram of the installation of a vibration monitoring system for high-voltage GIS equipment according to an embodiment of the present invention, figure 2 It is a schematic diagram of the working principle of the embodiment of the present invention.

[0035] Attached figure 1 1 is the shell of high-voltage GIS equipment, 2 is the vibration sensor, 3 is the gas-insulated switch flange; 4 is the metal supporting member; 5 is the foundation; figure 2 6 is the signal transmission line; 7 is the signal conditioning unit, 8 is the transmission line or wireless transmission system of the substation secondary system, and 9 is the main control computer of the substation;

specific Embodiment approach

[0037] Through the patch vibration sensor 2 installed on the flange of the high-voltage gas-insulated switch and the metal supporting member, the mechanical vibration signal of the high-voltage gas-insulated switch is converted into an electric signal, and then the electric signal is amplified, filtered, and then converted into an electric signal by the signal conditioning unit 7 The digital signal is transmitted to the main control computer of the substation through the transmission line of the secondary system of the substation or wireless transmission, and the online monitoring of the mechanical vibration of the gas insulated switch can be realized.

[0038] image 3 Is a schematic diagram of a monitoring method according to an embodiment of the present invention, such as image 3 As shown, the analysis is mainly performed in three steps. The first is to analyze the amplitude, time domain, and frequency domain characteristics of the vibration signal of a single group of senso...

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Abstract

The invention discloses a high-pressure GIS device vibration monitoring system, which comprises a first vibration sensor, a second vibration sensor, a signal acquisition amplification module, a transmission module and a master control computer. The first vibration sensor is disposed on a high-pressure gas insulation switch flange. A high-pressure gas insulation switch is connected with a high-pressure GIS device. The first vibration sensor converts detected mechanical vibration signals to electrical signals. The second vibration sensor is disposed on a metal supporting member. The metal supporting member supports the high-pressure GIS device. The second vibration sensor converts detected mechanical vibration signals to electrical signals. The signal acquisition amplification module performs amplification and filtering processing on the electrical signals sent out by the first vibration sensor and the electrical signals sent out by the second vibration sensor so as to obtain digital signals. The transmission module transmits the digital signals obtained by the signal acquisition amplification module to the master control computer. The master control computer performs vibration monitoring on the high-pressure GIS device according to the digital signals transmitted by the transmission module.

Description

Technical field [0001] The invention relates to the field of electric power, in particular to a high-voltage GIS equipment vibration monitoring system. Background technique [0002] High-voltage gas insulated switchgear (GIS) has been used more and more widely due to its high operational reliability. As the voltage level of the power grid continues to increase, electrical equipment is required to be small in size, reliable in operation, and easy to maintain. Gas-insulated combined electrical appliances are very popular among users because of these advantages. In order to ensure the safe operation of gas-insulated combined electrical appliances, it is necessary to extend the maintenance period as much as possible, and it is necessary to study and predict internal latent faults. In the actual operation of GIS, in addition to discharge faults, mechanical faults are also a major cause of accidents. The so-called mechanical failure means that when there are some defects in the GIS, ...

Claims

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Application Information

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IPC IPC(8): G01H11/06
Inventor 梁基重张平高鹏李艳鹏刘永鑫俞华
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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