CN108519150B - GIS vibration detection device under simulation operation condition - Google Patents
GIS vibration detection device under simulation operation condition Download PDFInfo
- Publication number
- CN108519150B CN108519150B CN201810397879.6A CN201810397879A CN108519150B CN 108519150 B CN108519150 B CN 108519150B CN 201810397879 A CN201810397879 A CN 201810397879A CN 108519150 B CN108519150 B CN 108519150B
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- gis
- vibration
- guide rod
- current
- shell
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 238000004088 simulation Methods 0.000 title description 4
- 239000012212 insulator Substances 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000011160 research Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a GIS vibration detection device under a simulated operation condition, wherein two ends of a GIS guide rod in a shell are connected through a connecting rod, and the GIS guide rod is fixed with the shell through an insulator; the vibration sensor is arranged outside the shell body of the vibration sensor connected with the oscilloscope; the transformer provides voltage for the GIS guide rod; the current booster provides current for the GIS guide rod. Providing a voltage signal through a gas insulation test transformer, providing a current signal by a current booster, and simultaneously applying the two signals to simulate the actual operation condition of the GIS; connecting a connecting rod with adjustable thickness and length with a GIS guide rod in series to simulate components with abrupt changes in conductor size such as an isolating switch and a breaker contact in an actual GIS; the voltage and current signals applied simultaneously generate current shrinkage at the discontinuous section of the guide rod, so that vibration signals are generated, and the vibration signals are measured by utilizing the vibration sensor, so that the vibration sensor can be used for researching the vibration characteristics of the GIS under the actual working condition.
Description
Technical Field
The invention relates to a vibration detection device, in particular to a GIS vibration detection device under a simulated operation condition.
Background
The gas insulated switchgear (Gas Insulated Switchgear, GIS) is increasingly used in the power grid due to small floor space and small maintenance workload. Regarding GISs, much attention is paid to its insulation state, and a lot of researches have been made on detecting its insulation state by partial discharge.
However, GIS is a complex mechanical body, and its mechanical state is also an important aspect related to its safe operation. In the equipment with contacts such as a disconnecting switch and a circuit breaker in the GIS, the size of a connecting rod changes at the connection position of the contacts, current contracts at the connection position, vibration is generated at the contact, the vibration is transmitted to a shell through an insulator and the like, and a detectable vibration signal is generated at the shell. Measurement of GIS mechanical conditions using vibration signals has been used today.
However, in the present study, for simplicity and convenience, a single current signal is applied instead of a voltage signal, and the voltage and current signals act simultaneously in the actual operation process of the GIS, so that it is necessary to study an experimental device capable of applying the voltage and current signals simultaneously.
In addition, in the current research, an actual disconnecting switch contact is often adopted, and the contact state of the actual contact is difficult to control, so that the detailed research cannot be performed, and therefore, the research can be performed more specifically by researching a test component capable of representing the current shrinkage caused by the discontinuity of a guide rod.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a detection device capable of simulating the GIS vibration characteristics under actual working conditions.
In order to achieve the above object, the present invention adopts the following technical scheme:
in the vibration detection device for the GIS under the simulated operation condition, two ends of a GIS guide rod in a shell are connected through a connecting rod, and the GIS guide rod is fixed with the shell through an insulator; the vibration sensor is arranged outside the shell body of the vibration sensor connected with the oscilloscope;
the transformer provides voltage for the GIS guide rod; the current booster provides current for the GIS guide rod.
The shell is a 'back' type shell.
The transformer is arranged in the shell.
The upflow device is sleeved outside the shell.
The insulator is a basin-type insulator and is fixed with the shell through an insulating bolt, so that the current formed by the shell is avoided.
The transformer is a gas insulation power frequency test transformer.
The thickness and the length of the connecting rod are adjustable.
The invention has the advantages that:
according to the GIS vibration detection device under the simulated operation condition, the gas insulation test transformer is used for providing voltage signals, the current booster is used for providing current signals, and the two signals are applied to simulate the actual operation condition of the GIS; connecting a connecting rod with adjustable thickness and length with a GIS guide rod in series to simulate components with abrupt changes in conductor size such as an isolating switch and a breaker contact in an actual GIS; through the voltage and current signals applied simultaneously, current shrinkage is generated at the discontinuous section of the guide rod, so that vibration signals are generated, the vibration sensor is used for measuring the vibration signals, and the vibration characteristics of the GIS under the actual working condition are researched.
The GIS vibration detection device under the simulated operation working condition has the advantages of simple structure, convenient detection, accurate working condition simulation, capability of detecting various vibration characteristics generated by current shrinkage, and strong practicability and wide applicability.
Drawings
Fig. 1 is a schematic structural diagram of a vibration detection device for a GIS under a simulated operation condition according to the present invention.
The meaning of the symbols in the drawings is as follows: 1. the device comprises a shell, 2 GIS guide rods, 3, a transformer, 4, a current booster, 5, a connecting rod, 6, a vibration sensor, 7, an oscilloscope, 8 and an insulator.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
A vibration detection device for GIS under the simulated operation condition comprises a shell 1 of a 'loop' -type and a GIS guide rod 2 arranged in the shell 1; the two ends of the GIS guide rod 2 are connected through a connecting rod 5. The GIS guide rod 2 is fixed with the shell 1 through a basin-type insulator 8, and the insulator 8 is fixed with the shell 1 through an insulating bolt; the outside of the shell 1 is provided with a vibration sensor 6 connected with an oscilloscope 7.
The current booster 4 sleeved outside the shell 1 supplies power for the GIS guide rod 2, and current signals are applied.
The transformer 3 of the SF 6 gas insulation power frequency test and the GIS guide rod 2 share a metal shell, and the high-voltage output is directly connected with the high-voltage GIS guide rod 2.
The connecting rod 5 replaces a section of the GIS guide rod 2 and is used for simulating the change of the conductor size at the GIS contact.
In an actual GIS, there is a discontinuity in conductor size at a position of a disconnector, a breaker contact, or the like, and vibration occurs at a position where the conductor size is suddenly changed due to current shrinkage. The condition can be truly simulated by using a section of connecting rod 5 with adjustable thickness and length, and the simulation of current contraction with different degrees can be realized by adjusting the thickness and the length of the connecting rod 5.
When detecting, the method comprises the following steps:
The transformer 3 of the gas insulation test generates a voltage signal, the current booster 4 generates a current signal, the two signals are applied to simulate the actual operating condition of the GIS at the same time, and the ratio of the two signals can be selected by referring to the operating condition of the actual GIS.
The current contraction degree can be adjusted through the length and thickness of the connecting rod 5, and the vibration conditions under different current contraction degrees can be simulated.
And then the vibration sensor 6 is used for measuring the vibration signal, and the oscilloscope 7 displays the detection signal fed back by the vibration sensor 6, so that the GIS vibration signals under different current shrinkage conditions are researched.
In the test, according to the needs of the test, various parameters can be flexibly adjusted, for example: parameters of the transformer 3 and the upflow device 4 can be selected according to requirements, and the arrangement position of the vibration sensor 6, the thickness and the length of the connecting rod 5 and the like are selected.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.
Claims (6)
1. The vibration detection device for the GIS under the simulated operation condition is characterized in that two ends of a GIS guide rod in a shell are connected through a connecting rod, and the GIS guide rod is fixed with the shell through an insulator; the vibration sensor is arranged outside the shell body of the vibration sensor connected with the oscilloscope; the thickness and the length of the connecting rod are adjustable, and the connecting rod is used for simulating a component with abrupt change of the conductor size in the GIS under the operation condition, wherein the component with abrupt change of the conductor size comprises an isolating switch and a breaker contact; the transformer provides voltage for the GIS guide rod; the current booster provides current for the GIS guide rod.
2. The device for detecting vibration of a GIS under simulated operating conditions of claim 1, wherein the housing is a "loop" type housing.
3. The device for detecting vibration of a GIS under simulated operation according to claim 1, wherein said transformer is disposed within said housing.
4. The device for detecting vibration of a GIS under simulated operation according to claim 1, wherein the current booster is sleeved outside the housing.
5. The vibration detection device for a GIS under simulated operation conditions according to claim 1, wherein the insulator is a basin-type insulator and is fixed with the housing by an insulating bolt.
6. The vibration detection device for a GIS under simulated operation conditions according to claim 1, wherein the transformer is a gas-insulated power frequency test transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810397879.6A CN108519150B (en) | 2018-04-28 | 2018-04-28 | GIS vibration detection device under simulation operation condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810397879.6A CN108519150B (en) | 2018-04-28 | 2018-04-28 | GIS vibration detection device under simulation operation condition |
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| Publication Number | Publication Date |
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| CN108519150A CN108519150A (en) | 2018-09-11 |
| CN108519150B true CN108519150B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810397879.6A Active CN108519150B (en) | 2018-04-28 | 2018-04-28 | GIS vibration detection device under simulation operation condition |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824312A (en) * | 2019-11-22 | 2020-02-21 | 重庆大学 | GIS equipment defect simulation analysis equipment and method |
| CN113504020A (en) * | 2021-05-24 | 2021-10-15 | 国网江苏省电力有限公司电力科学研究院 | GIS vibration defect simulation system and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881813A (en) * | 2010-06-17 | 2010-11-10 | 国网电力科学研究院 | Method for simulating GIS transformer substation to produce very fast transient overvoltage (VFTO) and test circuit |
| CN102419410A (en) * | 2011-08-19 | 2012-04-18 | 云南电力试验研究院(集团)有限公司 | Voltage/current double-applying testing device for electric device |
| CN103336188A (en) * | 2013-05-30 | 2013-10-02 | 国家电网公司 | Current boosting apparatus suitable for GIS equipment |
| CN103336216A (en) * | 2013-05-30 | 2013-10-02 | 国家电网公司 | GIS equipment fault simulation test system |
| CN204595107U (en) * | 2015-03-09 | 2015-08-26 | 广西电网有限责任公司电力科学研究院 | A kind of GIS device galvanic circle contact condition analoging detecting device |
| CN105116320A (en) * | 2015-08-24 | 2015-12-02 | 国家电网公司 | Gas insulated switchgear isolation switch contact state test and measurement system |
| CN105301400A (en) * | 2015-11-10 | 2016-02-03 | 中国电力科学研究院 | Ultrahigh-voltage AC equipment operation condition simulation system |
| CN208595975U (en) * | 2018-04-28 | 2019-03-12 | 国网江苏省电力有限公司电力科学研究院 | The vibration detection device of GIS under a kind of dry run operating condition |
-
2018
- 2018-04-28 CN CN201810397879.6A patent/CN108519150B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881813A (en) * | 2010-06-17 | 2010-11-10 | 国网电力科学研究院 | Method for simulating GIS transformer substation to produce very fast transient overvoltage (VFTO) and test circuit |
| CN102419410A (en) * | 2011-08-19 | 2012-04-18 | 云南电力试验研究院(集团)有限公司 | Voltage/current double-applying testing device for electric device |
| CN103336188A (en) * | 2013-05-30 | 2013-10-02 | 国家电网公司 | Current boosting apparatus suitable for GIS equipment |
| CN103336216A (en) * | 2013-05-30 | 2013-10-02 | 国家电网公司 | GIS equipment fault simulation test system |
| CN204595107U (en) * | 2015-03-09 | 2015-08-26 | 广西电网有限责任公司电力科学研究院 | A kind of GIS device galvanic circle contact condition analoging detecting device |
| CN105116320A (en) * | 2015-08-24 | 2015-12-02 | 国家电网公司 | Gas insulated switchgear isolation switch contact state test and measurement system |
| CN105301400A (en) * | 2015-11-10 | 2016-02-03 | 中国电力科学研究院 | Ultrahigh-voltage AC equipment operation condition simulation system |
| CN208595975U (en) * | 2018-04-28 | 2019-03-12 | 国网江苏省电力有限公司电力科学研究院 | The vibration detection device of GIS under a kind of dry run operating condition |
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| CN108519150A (en) | 2018-09-11 |
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