CN116699341A - Measuring device of inflatable ring main unit side expansion type bus connector system - Google Patents
Measuring device of inflatable ring main unit side expansion type bus connector system Download PDFInfo
- Publication number
- CN116699341A CN116699341A CN202310986876.7A CN202310986876A CN116699341A CN 116699341 A CN116699341 A CN 116699341A CN 202310986876 A CN202310986876 A CN 202310986876A CN 116699341 A CN116699341 A CN 116699341A
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- Prior art keywords
- optical fiber
- connector system
- sensor
- insulating material
- main unit
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- 239000013307 optical fiber Substances 0.000 claims abstract description 48
- 239000011810 insulating material Substances 0.000 claims abstract description 36
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 14
- 238000009529 body temperature measurement Methods 0.000 claims description 10
- 238000010009 beating Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Abstract
The invention is suitable for the technical field of switching equipment, and relates to a measuring device of an inflatable ring main unit side-expansion bus connector system, which comprises: a rubber sleeve disposed in the side-spread receptacle of the side-spread busbar connector system, the rubber sleeve comprising an outer semiconductive layer, an insulating material layer, and an inner semiconductive layer; the coupling electrode is arranged on the outer semi-conductive layer and comprises an ultrahigh frequency sensor for collecting high-frequency current signals flowing in the outer semi-conductive layer, and the collected high-frequency current signals are provided for an external collection host through a local discharge sensor connecting wire; the optical fiber temperature measuring sensor is embedded in the outer semi-conductive layer and used for collecting the temperature of the insulating material layer and is connected with an external collecting host through an optical fiber temperature measuring sensor connecting wire. The invention has simple structure and multiple functions, and can comprehensively judge whether the side-spread bus connector system has partial discharge and the temperature change condition of the insulating material layer, thereby preventing accidents and reducing economic loss.
Description
Technical Field
The invention belongs to the technical field of switch equipment, and particularly relates to a measuring device of an inflatable ring main unit side-expansion bus connector system.
Background
Along with the continuous increase of the electric energy demand of society, the scale and the complexity of the transmission and distribution lines are also higher and higher, the improvement of the quality, the reliability and the operation safety of transmission and distribution equipment in a power grid becomes the primary task of the current power industry, wherein a 40.5kV inflatable ring main unit is used as primary switching equipment widely applied to the transmission lines, the air insulation switching equipment is replaced in a large range in the industry, and the intelligent, miniaturization, the reduction of the operation and maintenance quantity and the improvement of the operation reliability of the power grid are effectively realized by using the equipment.
At present, organic insulating materials in a 40.5kV inflatable ring main unit side-expansion bus connection system in the market mainly comprise: the organic insulating materials are main insulating parts of a bus connecting system, and if the main insulating parts are damaged or product defects occur in operation, the main insulating parts cause partial discharge, meanwhile, further damage of product insulation is aggravated, and finally, ground faults are caused. In addition, the aging of the organic insulating material is also easy to generate faults, the aging (dielectric loss) of the organic insulating material is mainly influenced by frequency (f), temperature (t) and humidity (% RH), and the temperature directly influences the aging (dielectric loss) of the organic insulating material and the service life of a product. However, the existing 40.5kV inflatable ring main unit side-expansion bus connector system can only realize bus connection function or the device can not realize measurement of other parameters at the same time, such as partial discharge measurement of the system, temperature measurement of an organic insulating material layer and the like, so that accidents cannot be prejudged, operation and maintenance can not be carried out in advance, and accidents can not be prevented. The patent application with publication number CN100379109C provides a connection sleeve for a bus bar connector in a gas-insulated switchgear, comprising: the connection sleeve (M) has an outer conductive surface (OA) which is grounded and an inner conductive surface (OI) on which the voltage potential of the busbar (S) is in contact; the connection sleeve (M) has a coupling electrode (KE) embedded in the insulating material (I). Wherein the sensor (coupling electrode KE) is located outside the gas chamber of the device, which makes no gas handling necessary when replacing the sensor. By means of the design of the connecting sleeve (M), a high partial discharge sensitivity of the sensor (coupling electrode KE) can be achieved. This patent only makes a simple study of partial discharge measurement and does not describe a temperature measurement related technical scheme of the insulating material.
Therefore, how to realize partial discharge measurement and temperature measurement of the organic insulating material layer of the bus connector is a problem to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a measuring device of an inflatable ring main unit side-expansion bus connector system, so as to solve the problem that partial discharge measurement of a bus connector and temperature measurement of an organic insulating material layer cannot be realized simultaneously in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a measuring device of an inflatable ring main unit side-expansion bus connector system, which comprises: a rubber sleeve disposed in a side-spread receptacle of a side-spread busbar connector system, the rubber sleeve comprising an outer semiconductive layer, an insulating material layer, and an inner semiconductive layer; the coupling electrode comprises an ultrahigh frequency sensor and is used for collecting high-frequency current signals flowing in the outer semi-conductive layer, and the collected high-frequency current signals are provided for an external collection host through a local discharge sensor connecting wire; the optical fiber temperature measuring sensor is embedded in the outer semi-conductive layer and used for collecting the temperature of the insulating material layer and is connected with an external collecting host through an optical fiber temperature measuring sensor connecting wire.
Further, the optical fiber temperature measuring sensor comprises an external optical fiber interface, a plurality of metal optical fiber grating strain sensors and optical fibers, wherein the external optical fiber interface and the metal optical fiber grating strain sensors are connected through the optical fibers.
Further, a sensor connection insert is included, the sensor connection insert being disposed between the outer semiconductive layer and a partial discharge sensor connection line.
Further, still including being used for playing support components and parts and sealed effect's looped netowrk cabinet gas tank panel beating, looped netowrk cabinet gas tank panel beating sets up on the side expands the socket.
Further, the temperature measurement range of the optical fiber temperature measurement sensor is-20 ℃ to 1000 ℃.
Compared with the prior art, the measuring device of the inflatable ring main unit side-expansion bus connector system provided by the invention has at least the following beneficial effects:
the existing 40.5kV inflatable ring main unit side-expansion bus connector system can only realize bus connection function or the device can not realize measurement of other parameters at the same time, such as partial discharge measurement of the system, temperature measurement of an organic insulating material layer and the like, so that accidents cannot be prejudged, and operation, maintenance and overhaul can not be carried out in advance, and the occurrence of the accidents can not be prevented. The invention has simple structure and multiple functions, and can comprehensively judge whether the side-spread bus connector system has partial discharge and the temperature change condition of the insulating material layer by collecting the partial discharge condition and the temperature of the organic insulating material layer in operation through the passive sensor, and timely know the aging condition of the insulating material layer, thereby playing the roles of reminding maintenance due to expiration, effectively preventing accidents and reducing economic losses.
Drawings
In order to more clearly illustrate the solution of the invention, a brief description will be given below of the drawings required for the description of the embodiments, it being apparent that the drawings in the following description are some embodiments of the invention and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of a measuring device of an inflatable ring main unit side-expansion bus connector system according to an embodiment of the present invention;
FIG. 2 is a diagram of an optical fiber temperature sensor of a measuring device of an inflatable ring main unit side-expanded bus connector system according to an embodiment of the present invention;
reference numerals: 10-side-spread socket; 20-rubber sleeve; 201-an outer semiconductive layer; 30-coupling electrodes; 40-connecting wires of the partial discharge sensors; 50-an optical fiber temperature measuring sensor; 501-an external optical fiber interface; 502-a metal fiber grating strain sensor; 503-optical fiber; 60-connecting wires of the optical fiber temperature measuring sensors; 70-sensor connection insert; 80-looped netowrk cabinet gas tank sheet metal; 90-external acquisition host.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terms used in the specification are used herein for the purpose of describing particular embodiments only and are not intended to limit the present invention, for example, the orientations or positions indicated by the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are orientations or positions based on the drawings, which are merely for convenience of description and are not to be construed as limiting the present invention.
The terms "comprising" and "having" and any variations thereof in the description of the invention and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion; the terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. In the description of the invention and the claims and the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
Furthermore, references herein to "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The invention provides a measuring device of an inflatable ring main unit side-expanded bus connector system, which is applied to the detection process of a 40.5kV inflatable ring main unit side-expanded bus connector system, and comprises the following components:
a rubber sleeve disposed in a side-spread receptacle of a side-spread busbar connector system, the rubber sleeve comprising an outer semiconductive layer, an insulating material layer, and an inner semiconductive layer;
the coupling electrode comprises an ultrahigh frequency sensor and is used for collecting high-frequency current signals flowing in the outer semi-conductive layer, and the collected high-frequency current signals are provided for an external collection host through a local discharge sensor connecting wire;
the optical fiber temperature measuring sensor is embedded in the outer semi-conductive layer and used for collecting the temperature of the insulating material layer and is connected with an external collecting host through an optical fiber temperature measuring sensor connecting wire.
The invention has simple structure and multiple functions, and can comprehensively judge whether the side-spread bus connector system has partial discharge and the temperature change condition of the insulating material layer, thereby effectively preventing accidents and reducing economic loss.
In order to make the person skilled in the art better understand the solution of the present invention, the technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings.
The invention provides a measuring device of a side-expanded bus connector system of an inflatable ring main unit, which is applied to the detection process of the side-expanded bus connector system of the 40.5kV inflatable ring main unit, wherein in the actual installation process, a left single ring main unit gas tank and a right single ring main unit gas tank are connected through the side-expanded bus connector system, on one hand, the connection part of the side-expanded bus connector is easy to generate bubbles, impurities and the like in the installation and use processes, and then is easy to cause partial discharge hazard, on the other hand, the measuring device is used in a temperature-adaptive environment, the service life of an organic insulating material is very long, but is easy to be damaged by partial discharge and the like, the service life is shortened, and insulation is reduced, and the product is mainly damaged by the partial discharge in the normal use process, so that the partial discharge measurement needs to be carried out on the side-expanded bus connector system, and the insulation performance of the organic insulating material is usually used in the side-expanded bus connector system and is poor along with the occurrence of the partial discharge, and the measuring device of the side-expanded bus connector system of the inflatable ring main unit comprises the following figures 1 to 2:
a rubber sleeve 20 disposed in the side-spread receptacle 10 of the side-spread busbar connector system, the rubber sleeve 20 comprising an outer semiconductive layer 201, an insulating material layer and an inner semiconductive layer; the coupling electrode 30 is arranged on the outer semi-conductive layer 201, the coupling electrode 30 comprises an ultrahigh frequency sensor for collecting high-frequency current signals flowing in the outer semi-conductive layer 201, the high-frequency current signals flow through the coupling electrode 30 from the outer semi-conductive layer 201 and then flow into corresponding grounding points, ultrahigh frequency currents generated in the side-spread bus connector system are collected in the ultrahigh frequency sensor, and the high-frequency current signals are supplied to the external collection host 90 through the local discharge sensor connecting wire 40; the optical fiber temperature measuring sensor 50 is embedded in the outer semiconductive layer 201, and is mainly arranged near the insulating material layer and the semiconductive layer region of the rubber sleeve 20, and is used for collecting the temperature of the insulating material layer, especially, the junction position of the semiconductive layer and the insulating material layer is most obvious, the temperature change in the region is larger due to the concentration of leakage current to the semiconductive layer, the temperature measured by the optical fiber temperature measuring sensor 50 has a corresponding function relationship with the dielectric loss of the organic insulating material, the measured temperature can fully reflect the dielectric loss condition of the organic insulating material, the optical fiber temperature measuring sensor 50 is connected with the external collecting host 90 through an optical fiber temperature measuring sensor connecting line 60, the optical fiber temperature measuring sensor 50 comprises an external optical fiber interface 501, a plurality of metal optical fiber grating strain sensors 502 and optical fibers 503, the external optical fiber interface 501 and the metal optical fiber grating strain sensors 502 are all connected through optical fibers 503, the measuring temperature range of the optical fiber temperature measuring sensor 50 is-20 ℃ to 1000 ℃, the optical fibers 503 and the metal optical fiber grating strain sensors 502 are packaged by adopting high-temperature resistant materials, each time is provided with a certain distance, the measured temperature of the metal optical fiber grating strain sensors can be directly welded with the metal optical fiber grating strain sensors 502, the actual volume of the metal grating strain sensors can be adjusted, the actual volume of the optical fiber grating strain sensors can be adjusted, and the actual volume of the optical fiber grating strain sensors can meet the requirements of the actual requirements of the optical fiber grating sensor 502, and the actual requirements can be met, and the actual requirements of the temperature sensor can be adjusted.
Further, in this embodiment, the sensor connection insert 70 is further included for connection and fixation, and the sensor connection insert 70 is disposed between the outer semiconductive layer 201 and the partial discharge sensor connection wire 40, so as to facilitate the connection therebetween.
Further, in this embodiment, the ring main unit gas tank sheet metal 80 for supporting components and sealing is further included, and the ring main unit gas tank sheet metal 80 is disposed on the side expansion socket 10.
Compared with the prior art, the measuring device of the inflatable ring main unit side-expansion bus connector system of the embodiment only can realize bus connection function or the measuring device can not realize measurement of other parameters at the same time, such as partial discharge measurement of the system, temperature measurement of an organic insulating material layer and the like, so that accidents cannot be prejudged in advance, and transportation, maintenance and prevention of accidents can not be carried out in advance. The invention has simple structure and multiple functions, and can comprehensively judge whether the side-spread bus connector system has partial discharge and the temperature change condition of the insulating material layer by collecting the partial discharge condition and the temperature of the organic insulating material layer in operation through the passive sensor, and timely know the aging condition of the insulating material layer, thereby playing the roles of reminding maintenance due to expiration, effectively preventing accidents and reducing economic losses.
It is apparent that the above-described embodiments are merely preferred embodiments of the present invention, not all of which are shown in the drawings, which do not limit the scope of the invention. This invention may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the invention are directly or indirectly applied to other related technical fields, and are also within the scope of the invention.
Claims (5)
1. A measurement device for inflatable looped netowrk cabinet side expands formula busbar connector system, characterized in that includes:
a rubber sleeve disposed in a side-spread receptacle of a side-spread busbar connector system, the rubber sleeve comprising an outer semiconductive layer, an insulating material layer, and an inner semiconductive layer;
the coupling electrode comprises an ultrahigh frequency sensor and is used for collecting high-frequency current signals flowing in the outer semi-conductive layer, and the collected high-frequency current signals are provided for an external collection host through a local discharge sensor connecting wire;
the optical fiber temperature measuring sensor is embedded in the outer semi-conductive layer and used for collecting the temperature of the insulating material layer and is connected with an external collecting host through an optical fiber temperature measuring sensor connecting wire.
2. The measurement device of the inflatable ring main unit side-expanded bus connector system according to claim 1, wherein the optical fiber temperature sensor comprises an external optical fiber interface, a plurality of metal optical fiber grating strain sensors and an optical fiber, and the external optical fiber interface and the metal optical fiber grating strain sensors are all connected through the optical fiber.
3. The measurement device for an inflatable ring main unit side-spread busbar connector system according to claim 1, further comprising a sensor connection insert disposed between the outer semiconductive layer and a partial discharge sensor connection line.
4. The measurement device for inflatable looped netowrk cabinet side expands busbar connector system of claim 1, further comprising looped netowrk cabinet gas tank panel beating for supporting components and parts and sealed effect, looped netowrk cabinet gas tank panel beating sets up on the side expands the socket.
5. The measurement device of the inflatable ring main unit side-expanded bus connector system according to claim 1, wherein the temperature measurement range of the optical fiber temperature measurement sensor is-20-1000 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310986876.7A CN116699341A (en) | 2023-08-08 | 2023-08-08 | Measuring device of inflatable ring main unit side expansion type bus connector system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310986876.7A CN116699341A (en) | 2023-08-08 | 2023-08-08 | Measuring device of inflatable ring main unit side expansion type bus connector system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116699341A true CN116699341A (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310986876.7A Pending CN116699341A (en) | 2023-08-08 | 2023-08-08 | Measuring device of inflatable ring main unit side expansion type bus connector system |
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| CN (1) | CN116699341A (en) |
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|---|---|---|---|---|
| CN1736010A (en) * | 2002-10-05 | 2006-02-15 | 阿尔斯通公司 | Connecting sleeve for a bus bar connection in a gas-insulated switchboard system |
| CN1743795A (en) * | 2005-09-30 | 2006-03-08 | 大连理工大学 | Optical fiber grating displacement sensor |
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| CN109799434A (en) * | 2019-03-01 | 2019-05-24 | 深圳供电局有限公司 | PD Pattern Recognition system and method |
| CN111913127A (en) * | 2020-06-29 | 2020-11-10 | 中铁第一勘察设计院集团有限公司 | Intelligent detection device and method for tubular bus |
| CN113064040A (en) * | 2021-05-18 | 2021-07-02 | 国网河南省电力公司南阳供电公司 | Coated cable joint fault early warning device and method |
-
2023
- 2023-08-08 CN CN202310986876.7A patent/CN116699341A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736010A (en) * | 2002-10-05 | 2006-02-15 | 阿尔斯通公司 | Connecting sleeve for a bus bar connection in a gas-insulated switchboard system |
| CN1743795A (en) * | 2005-09-30 | 2006-03-08 | 大连理工大学 | Optical fiber grating displacement sensor |
| CN201340311Y (en) * | 2009-01-20 | 2009-11-04 | 江苏大全封闭母线有限公司 | On-line temperature monitoring device of shield insulating tubular bus |
| CN201340312Y (en) * | 2009-01-20 | 2009-11-04 | 江苏大全封闭母线有限公司 | On-line temperature monitoring device of tubular bus |
| CN202815097U (en) * | 2012-10-13 | 2013-03-20 | 湖北中科电气股份有限公司 | Insulating medium loss on-line monitoring system |
| CN109149484A (en) * | 2018-05-02 | 2019-01-04 | 广东航粤电气有限公司 | A kind of intelligent bus plugging box |
| CN109799434A (en) * | 2019-03-01 | 2019-05-24 | 深圳供电局有限公司 | PD Pattern Recognition system and method |
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