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A Displacement Detection System for Substation GIS Expansion Joints

A displacement detection and expansion joint technology, which is applied in information technology support systems, circuit devices, electrical components, etc., can solve problems such as subjective judgment errors, no design warning mechanism, and inability to effectively ensure the safety of power grids and equipment. The effect of reducing signal interference

Active Publication Date: 2020-08-11
国网河南省电力公司超高压公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that by setting the telescopic measuring scales on the first measuring board and the second measuring board, due to the need for manual visual statistics, there are not only errors in subjective judgment
Although this structure solves the problems of automatic monitoring, recording and remote transmission of parameters such as displacement, inclination, vibration, and ambient temperature of the expansion joint, it does not design a certain warning mechanism, which makes it difficult to detect the displacement trend in a timely and intuitive manner, and cannot be effective. Ensure the safety of power grid and equipment

Method used

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  • A Displacement Detection System for Substation GIS Expansion Joints
  • A Displacement Detection System for Substation GIS Expansion Joints
  • A Displacement Detection System for Substation GIS Expansion Joints

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 with figure 2 As shown, the present invention includes a power supply module 1, a linear displacement sensing module 2, an acquisition module 3, a central processing module 4, a storage module 5, a display module 6 and an alarm module 7, and the output terminal of the linear displacement sensing module 2 communicates through RS232 The module is connected with the input end of acquisition module 3, and the output end of acquisition module 3 is connected with central processing module 4 by RS485 communication module, and the output end of central processing module 4 is connected with storage module 5, display module 6 and alarm module 7 respectively connected to the input.

[0031] The effective stroke of the linear displacement sensing module 2 is 75-700mm. The two ends of the linear displacement sensing module 2 are provided with hanging rings 8, and the inner spherical hinges of the hanging ring 8 are connected to the bushing 9. They are installed at...

Embodiment 2

[0034] Such as image 3 As shown, the present invention includes a power supply module 1, a linear displacement sensing module 2, an acquisition module 3, a central processing module 4, a storage module 5, a display module 6, an alarm module 7 and a remote monitoring module 10, and the linear displacement sensing module 2 The output end is connected with the input end of the acquisition module 3 through the RS232 communication module, the output end of the acquisition module 3 is connected with the central processing module 4 through the RS485 communication module, and the output end of the central processing module 4 is respectively connected with the storage module 5 and the display module 6 Be connected with the input terminal of alarm module 7;

[0035] The remote monitoring module 10 is arranged in the monitoring room, and the central processing module 4 and the remote monitoring module carry out signal transmission through the Modbus protocol or Zigebee. The preferred Mo...

Embodiment 3

[0038] The structure of this embodiment is basically the same as that of Embodiment 2, the difference is: as Figure 4 As shown, the two ends of the GIS telescopic joint are fixedly connected to the positioning rod 11. When installed and used, the positioning rod 11 is sequentially provided with a limit nut 12, a first positioning ring 13 and a second positioning ring 14 from the outside to the inside. The limit nut 12 and the positioning The rod 11 is threaded and contacts the outer wall of the first locating ring 13, the first locating ring 13 is slidably connected with the locating rod 11, the second locating ring 14 is fixedly connected with the locating rod 11, the first locating ring 13 and the second locating ring 14 are all frustum-shaped structures, the end of the first positioning ring 13 with a smaller cross-sectional area is socketed with the end with a smaller cross-sectional area of ​​the second positioning ring 14, and the end with a smaller cross-sectional area ...

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Abstract

The invention belongs to the technical field of power system substation equipment, and in particular relates to a substation GIS expansion joint displacement detection system, which includes a power supply module, a linear displacement sensing module, an acquisition module, a central processing module, a storage module, a display module and an alarm module. The output end of the linear displacement sensing module is connected with the input end of the acquisition module through the RS232 communication module, the output end of the acquisition module is connected with the central processing module through the RS485 communication module, and the output end of the central processing module is respectively connected with the storage The input terminals of the module, the display module and the alarm module are connected. By adding an alarm module, the invention monitors the displacement change of the expansion joint in real time, and at the same time, the alarm device reminds the staff to find out the displacement change in time and take measures to ensure the safe operation of the power grid and equipment.

Description

technical field [0001] The invention belongs to the technical field of electric power system substation equipment, and in particular relates to a displacement detection system of a substation GIS expansion joint. Background technique [0002] GIS (GAS insulated SWITCHGEAR) is the English abbreviation for gas insulated fully enclosed combined electrical appliances. GIS is composed of circuit breaker, isolating switch, grounding switch, transformer, lightning arrester, bus bar, connector and outlet terminal, etc. These devices or components are all enclosed in a metal grounding shell, and the inside is filled with a certain pressure of SF6 insulating gas , so it is also called SF6 fully enclosed combined electrical appliances; GIS equipment has been widely used all over the world since it was put into practical use in the 1960s. GIS is not only widely used in the field of high voltage and ultra-high voltage, but also in the field of ultra-high voltage. Compared with conventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B13/065H02J13/00
CPCH02J13/0062H02J13/0075H02B13/065Y04S40/124Y02B90/20Y04S10/16Y04S40/126Y02E60/00
Inventor 尚西华侯群宝李超贾罡池锐敏张治平李静宋丹张利焦澎
Owner 国网河南省电力公司超高压公司
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