CN110987169A - GIS bus vibration condition monitoring device and monitoring method - Google Patents
GIS bus vibration condition monitoring device and monitoring method Download PDFInfo
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- CN110987169A CN110987169A CN201911343398.8A CN201911343398A CN110987169A CN 110987169 A CN110987169 A CN 110987169A CN 201911343398 A CN201911343398 A CN 201911343398A CN 110987169 A CN110987169 A CN 110987169A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a GIS bus vibration condition monitoring device and a monitoring method, wherein the device comprises vibration sensors which are respectively arranged at preset measuring point positions and a monitoring terminal connected with the vibration sensors; the vibration sensor is used for detecting vibration data of the position where the vibration sensor is located and sending the vibration data to the monitoring terminal; the monitoring terminal is used for receiving the vibration data in a centralized manner, comparing the vibration data with a preset threshold value and making an early warning reminding operation when the vibration data exceeds the threshold value; the preset measuring point positions comprise topology measuring points and structure measuring points. The application of the invention can enable operators to find abnormal vibration of the GIS bus in the operation process in time, and meanwhile, the collected vibration data can provide a foundation for subsequent research and analysis, find hidden dangers as soon as possible and eliminate accidents in a sprouting state, thereby not only improving the safe operation level of the system, but also reducing the economic loss caused by the accidents.
Description
Technical Field
The invention relates to the technical field of Gas Insulated Switchgear (GIS), in particular to a GIS bus vibration condition monitoring device and a monitoring method.
Background
GAS insulated SWITCHGEAR (GAS insulated SWITCHGEAR, referred to as GIS for short) is widely used in large-scale power enterprises due to its characteristics of safe and reliable operation, small floor space, no influence from external environment, etc. Compared with the split open equipment, the GIS equipment has less fault, but the consequences are much more serious once the fault occurs, so that the repairing process is complex, the repairing time is long, and the economic loss is large.
The bus vibration is one of GIS equipment faults. The assembled GIS equipment has more equipment components and larger tubular bus length, and is easy to cause bus self-vibration or resonance under the action of wind power or electromagnetic force of adjacent buses, and larger vibration causes loosening and fracture of a fastening structure, damage of an insulating structure, bus deformation and fatigue of a soft connection part to cause partial or even complete fracture. After the bus with larger vibration runs for a period of time with faults, the basic framework of the bus has different degrees of settlement, the GIS equipment is integrally deformed, the sealing is damaged, SF6 leakage occurs, and particularly, the bus is arranged at the support position of a GIS outlet sleeve.
Therefore, vibration monitoring and stress analysis of the GIS equipment are well carried out, hidden dangers are found as soon as possible, accidents are eliminated in a bud state, the safe operation level of the system can be improved, and economic losses caused by the accidents can be reduced.
Disclosure of Invention
The invention aims to provide a GIS bus vibration condition monitoring device and a monitoring method, so that an operator can find abnormal vibration of a GIS bus in the operation process in time.
In order to solve the above problems, the present invention provides a device for monitoring the vibration condition of a GIS bus, comprising: the vibration sensor is arranged at the position of a preset measuring point and the monitoring terminal is connected with the vibration sensor; the vibration sensor is used for detecting vibration data of the position where the vibration sensor is located and sending the vibration data to the monitoring terminal; the monitoring terminal is used for receiving the vibration data in a centralized manner, comparing the vibration data with a preset threshold value and making an early warning reminding operation when the vibration data exceeds the threshold value; the preset measuring point position comprises a topological measuring point and a structure measuring point, the topological measuring point comprises any combination of a bus supporting steel beam part, a bus air chamber middle part and a bus tail end, and the structure measuring point comprises any combination of a circuit breaker connecting part, a corrugated pipe connecting part and an isolating switch connecting part.
Preferably, at each station location, the vibration sensor is located above, diagonally above 45 ° and horizontally, and in the same radial plane.
Preferably, the vibration sensor and the monitoring terminal are in data transmission in a wireless communication mode.
Preferably, the vibration sensor is fixed at each measuring point in a magnetic attraction mode.
The invention also correspondingly provides a GIS bus vibration condition monitoring method, which comprises the following steps based on the monitoring device: the vibration sensor detects vibration data of the position where the vibration sensor is located and sends the vibration data to the monitoring terminal; and the monitoring terminal receives the vibration data, compares the vibration data with a preset threshold value, and performs early warning reminding operation when the vibration data exceeds the threshold value.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, according to the characteristics that the bus is stressed by a large amount and the vibration of the connection part of important components is large, a bus topological structure and mounting structure measuring point arrangement rule is provided, vibration sensors are arranged according to the rule and then collect vibration data of each measuring point position, and a monitoring terminal receives the data in a centralized manner and performs early warning and reminding operation when the vibration data exceeds a threshold value (such as a maximum limit value specified by a manufacturer), so that an operator can find abnormal vibration of the GIS bus in the operation process in time.
2. The collected vibration data can provide a basis for subsequent research and analysis, and in practical application, the GIS bus can be evaluated by applying a stress analysis method on the basis of the vibration data, and influence analysis is carried out on abnormal vibration, so that operating personnel can know the operating state of the GIS in time.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a topological diagram of a GIS bus device in the prior art.
Fig. 2 is a mounting structure diagram of a GIS bus device in the prior art.
Fig. 3 is a schematic structural diagram of a monitoring device provided in the present invention.
Fig. 4 shows an arrangement of the vibration sensor at the position of the measuring point according to the present invention.
In the figure: 1-bus bar supporting steel beam, 2-bus bar air chamber, 3-bus bar end, 4-sleeve supporting cylinder, 5-bus bar, 6-isolating switch, 7-CT, 8-breaker, 9-grounding switch, 10-voltage transformer, 11-lightning arrester and 12-sleeve.
Detailed Description
GIS bus equipment is a complete set of high-voltage electrical equipment consisting of elements such as a circuit breaker, a disconnecting switch, a grounding switch, a quick grounding switch, an SF6 sleeve, a bus, a voltage transformer, a current transformer, a lightning arrester and the like, and is communicated with other elements of the GIS through a conductive connecting piece, so that different main wiring modes are met, and electric energy is collected, distributed and transmitted. The conductors in the bus tube are arranged in a triangular shape, and the disc insulator fixes the three-phase bus at a certain position through the conductors and the contacts and plays a role in insulating the ground. The topology and mounting structure of the bus bar arrangement is as in fig. 1 to 2.
When the long bus is in operation, the base component is not firmly installed, the bus self-vibration or resonance is easily caused under the action of larger wind power or the electromagnetic force of the adjacent bus, and the fastening structure is loosened and broken due to larger vibration, so that the insulating structure is damaged. According to the characteristic that the bus is stressed greatly and the vibration of the connection part of important parts is large, the bus topological structure and mounting structure measuring point arrangement rules are provided, the bus vibration characteristics are tested, and the bus health state is evaluated.
Based on the structural characteristics and the operating characteristics of the bus, in the bus vibration monitoring, vibration sensors are arranged at effective positions and axial positions of the bus radial same axial section, wherein the effective positions and the axial positions are perpendicular to each other, and vibration signals reflecting the current actual operating states of the positions are obtained. And acquiring the health condition of each part of the bus by performing data acquisition and spectrum analysis on the characteristic signals in each direction.
Based on this, referring to fig. 3, the GIS bus vibration condition monitoring device provided by the embodiment of the present invention includes N vibration sensors 100 respectively disposed at preset measuring point positions and a monitoring terminal 101 connected thereto. The two are in data transmission in a wired communication mode or a wireless communication mode, and in order to avoid the situation that the number of data lines is large and the data lines are wound, the wireless communication mode is preferably adopted.
The vibration sensor 100 is configured to detect vibration data at a location where the sensor is located and transmit the vibration data to the monitoring terminal 101. In practical application, the vibration sensor is fixed at each measuring point in a magnetic suction mode, and convenience and rapidness are realized.
The monitoring terminal 101 is configured to receive the vibration data in a centralized manner, compare the vibration data with a preset threshold, and perform an early warning operation when the vibration data exceeds the threshold, for example, making a red highlight at an abnormal data location, and simultaneously, emitting an alarm prompt tone.
The preset measuring point position comprises a topological measuring point and a structure measuring point, the topological measuring point comprises any combination of a bus supporting steel beam part, a bus air chamber middle part and a bus tail end, and the structure measuring point comprises any combination of a circuit breaker connecting part, a corrugated pipe connecting part and an isolating switch connecting part. In practical application, all the positions are set as measuring point positions, so that the acquired data set can reflect the vibration condition of the bus in the operation process to the maximum extent.
Further, referring to fig. 4, at each station position, a vibration sensor 100 is provided above, diagonally above 45 °, in three directions horizontally, and in the same radial plane. The arrangement mode is favorable for measuring the distribution of all measuring points which are stress concentrated and easy to deform, the measuring points are distributed comprehensively, and the vibration test effect is good; the vibration reason analysis and the fault rule mastering are facilitated; the same test surface is beneficial to the comparative analysis of test data.
The embodiment of the invention also correspondingly discloses a GIS bus vibration condition monitoring method, which comprises the following steps: the vibration sensor 100 detects vibration data at a position where it is located and transmits it to the monitor terminal 101. The monitoring terminal 101 receives the vibration data, compares the vibration data with a preset threshold value, and performs an early warning reminding operation when the vibration data exceeds the threshold value.
The technical solution provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (5)
1. A GIS bus vibration condition monitoring device is characterized by comprising:
the vibration sensor is arranged at the position of a preset measuring point and the monitoring terminal is connected with the vibration sensor;
the vibration sensor is used for detecting vibration data of the position where the vibration sensor is located and sending the vibration data to the monitoring terminal;
the monitoring terminal is used for receiving the vibration data in a centralized manner, comparing the vibration data with a preset threshold value and making an early warning reminding operation when the vibration data exceeds the threshold value;
the preset measuring point position comprises a topological measuring point and a structure measuring point, the topological measuring point comprises any combination of a bus supporting steel beam part, a bus air chamber middle part and a bus tail end, and the structure measuring point comprises any combination of a circuit breaker connecting part, a corrugated pipe connecting part and an isolating switch connecting part.
2. The apparatus of claim 1, wherein at each station location, the vibration sensor is located above, 45 ° above, and in three directions horizontally, and in the same radial plane.
3. The apparatus of claim 1, wherein the vibration sensor and the monitoring terminal are configured to communicate data wirelessly.
4. The apparatus of claim 1, wherein the vibration sensor is magnetically fixed at each station.
5. A GIS bus vibration condition monitoring method is characterized in that based on the monitoring device of claim 1, the method comprises the following steps:
the vibration sensor detects vibration data of the position where the vibration sensor is located and sends the vibration data to the monitoring terminal;
and the monitoring terminal receives the vibration data, compares the vibration data with a preset threshold value, and performs early warning reminding operation when the vibration data exceeds the threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343398.8A CN110987169A (en) | 2019-12-24 | 2019-12-24 | GIS bus vibration condition monitoring device and monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911343398.8A CN110987169A (en) | 2019-12-24 | 2019-12-24 | GIS bus vibration condition monitoring device and monitoring method |
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| CN110987169A true CN110987169A (en) | 2020-04-10 |
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| CN201911343398.8A Pending CN110987169A (en) | 2019-12-24 | 2019-12-24 | GIS bus vibration condition monitoring device and monitoring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362156A (en) * | 2020-10-30 | 2021-02-12 | 安徽容知日新科技股份有限公司 | Data acquisition system and method |
| WO2022262074A1 (en) * | 2021-06-16 | 2022-12-22 | 华北电力大学 | Method and system for performing security protection on basis of real-time vibration/acoustic emission monitoring |
-
2019
- 2019-12-24 CN CN201911343398.8A patent/CN110987169A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362156A (en) * | 2020-10-30 | 2021-02-12 | 安徽容知日新科技股份有限公司 | Data acquisition system and method |
| WO2022262074A1 (en) * | 2021-06-16 | 2022-12-22 | 华北电力大学 | Method and system for performing security protection on basis of real-time vibration/acoustic emission monitoring |
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