CN102751622B - Signal eduction device and method of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor - Google Patents
Signal eduction device and method of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor Download PDFInfo
- Publication number
- CN102751622B CN102751622B CN201210235755.0A CN201210235755A CN102751622B CN 102751622 B CN102751622 B CN 102751622B CN 201210235755 A CN201210235755 A CN 201210235755A CN 102751622 B CN102751622 B CN 102751622B
- Authority
- CN
- China
- Prior art keywords
- connector
- signal
- shell
- current transformer
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 18
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 26
- 239000012212 insulator Substances 0.000 claims abstract description 21
- 239000000956 alloy Substances 0.000 claims description 7
- 229910000833 kovar Inorganic materials 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract 3
- 239000004020 conductor Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- -1 and lining Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
- H01R24/52—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted in or to a panel or structure
-
- 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
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The invention relates to a signal eduction device and method of a sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, wherein the signal eduction device of the sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor is characterized by comprising a connector installation base (15) which is welded beside a through hole on a transformer base; a through hole is also formed in the middle of the connector installation base (15); a connector (16) is inserted into the through hole and is fixedly installed on the connector installation base (15); the connector (16) consists of an outer shell, a bushing (6) in the outer shell, a glass insulator (3) in the bushing (6) and an inner conductor (1) in the glass insulator (3); the outer shell consists of an upper shell (8) and a lower shell (7) which are connected threadedly; and the bushing (6) is welded on an inner wall of the upper shell (8) or an inner wall of the lower shell (7). By adopting the signal eduction device and method provided by the invention, an ultrahigh frequency signal output by a partial discharge sensor installed in an SF6 current transformer can be educed out of a transformer body, and the signal eduction device has favorable electric property and seal property.
Description
Technical field
The present invention relates to a kind of signal ejector and method of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor.
Background technology
At sulphur hexafluoride (SF
6) implanted superfrequency office is installed in current transformer and puts transducer, can improve the detection sensitivity of Partial discharge signal to a great extent, Timeliness coverage latency insulation defect, avoids major accident to occur.Measure and analyze implanted superfrequency office and put signal received by transducer, just need by sensor output signal from SF
6current transformer inside is drawn out to external, air-tightness when wherein needing the key issue solved to be exactly extraction.
Because the Partial discharge signal frequency of required measurement is up to 1GHz, for ensureing transmission performance and the connection reliability of signal, usually should use ultrahigh-frequency signal connector, but separate completely between the inner wire of Common radio frequency connector and shell, not have the function of hermetic seal.
Summary of the invention
An object of the present invention is to provide a kind of signal ejector of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, can by SF
6the signal that superfrequency transducer in Current Mutual Inductance body exports causes external, and has good gas sealing ability and signal transmission performance;
Two of object of the present invention is to provide a kind of signal outbound course of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, can possess the function of hermetic seal while drawing signal.
A kind of signal ejector of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, its special feature is: comprise and be welded on the connector mounting seat that on base of mutual inductor, through hole is other, thus make hermetic seal between base of mutual inductor and connector mounting seat, in the middle of this connector mounting seat, also have through hole, a connector to insert in this through hole and is fixedly mounted in connector mounting seat; Wherein connector is made up of the inner wire in the lining in shell, shell, the glass insulator in lining and glass insulator, and lining, glass insulator and inner wire be through sintering be melted glass bonding after cool an entirety of formation, previous housings is made up of the upper shell be threaded connection and lower house, and lining is welded on upper shell or lower house inwall, thus make the hermetic seal of lining both sides.
Wherein inner wire and lining all adopt kovar alloy material.
Wherein in the shell of lining and glass insulator both sides, all dielectric is installed.
The lower house of its housing stretches in upper shell, and this lower house leaves gap topmost and between upper enclosure inner wall on the direction along housing axis, thus damages glass insulator when avoiding screwing upper shell and lower house.
Wherein on the shell of connector, be provided with boss, this boss has through hole, thus by bolt, connector is fixed in connector mounting seat, and silicone rubber pad is equipped with between boss and connector mounting seat, thus make hermetic seal between connector and connector mounting seat.
A kind of signal outbound course of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, its special feature is: signal cable superfrequency office being put transducer inserts in the secondary outgoing line pipe of sulfur hexafluoride current mutual inductor, then pass from the through wires hole this secondary outgoing line inside pipe wall, be electrically connected with the connector one end in the signal ejector of any one in the claim 1 to 5 being arranged on through hole side on base for current transformer, then draw from the other end of this connector.
Adopt signal ejector of the present invention and method can will be arranged on SF
6ultrahigh-frequency signal that transducer exports is put in the office of current transformer inside, and to cause instrument transformer external, possesses good electric property and sealing property.Signal ejector of the present invention selects the kovar alloy material close with glass expansion coefficient as inner wire, and together with glass sintering, make the ultrahigh-frequency signal connector possessing gas sealing ability, and use the silicone rubber pad of ageing-resistant performance excellence to ensure the gas tightness between ultrahigh-frequency signal connector and base of mutual inductor, can SF do not changed
6under the original sealing property condition of current transformer, SF will be implanted to
6the ultrahigh-frequency signal that transducer output is put in office in Current Mutual Inductance body causes external, for use in measuring partial discharge and analyzing.Prove through overtesting, all technical of signal ejector of the present invention, meets SF completely
6the requirement of current transformer gas sealing ability specification.
Accompanying drawing explanation
Accompanying drawing 1 is the using state schematic diagram of signal ejector in the present invention;
Accompanying drawing 2 partly cuts open structural representation for signal ejector in the present invention.
Embodiment
As shown in Figure 1, 2, the present invention is a kind of signal ejector of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, comprise and be welded on the connector mounting seat 15 that on base of mutual inductor, through hole is other, thus make hermetic seal between base of mutual inductor and connector mounting seat 15, in the middle of this connector mounting seat 15, also have through hole, a connector 16 to insert in this through hole and is fixedly mounted in connector mounting seat 15; Wherein connector 16 is made up of the kovar alloy inner wire 1 in the kovar alloy lining 6 in shell, shell, the glass insulator 3 in lining 6 and glass insulator 3, and lining 6, glass insulator 3 and inner wire 1 be through high temperature sintering be melted glass bonding after cool an entirety of formation, previous housings is made up of the upper shell 8 be threaded connection and lower house 7, and lining 6 is welded on lower house 7 inwall, thus make lining 6 both sides hermetic seal.
Wherein inner wire 1 adopts kovar alloy material, in the shell of lining 6 and glass insulator 3 both sides, be all provided with teflon insulation medium 2.The lower house 7 of shell stretches in upper shell 8, and this lower house 7 leaves gap topmost and between upper shell 8 inwall on the direction along housing axis, thus damages glass insulator 3 when avoiding screwing upper shell 8 and lower house 7.
On the shell of connector 16, be wherein provided with the boss of ring-type, this boss circumferentially has 2-4 through hole, thus by 2-4 bolt 5, connector 16 is fixed in connector mounting seat 15, and between boss and connector mounting seat 15, be equipped with silicone rubber pad 4, thus make hermetic seal between connector 16 and connector mounting seat 15.Silicon rubber has excellent ageing-resistant performance, and its physical and mechanical properties numerical value is minimum by the fluctuation of variations in temperature, and the temperature variant fluctuation of every electrical performance indexes is also minimum, proves, for SF through overtesting
6the running environment of current transformer, silicon rubber is good encapsulant.
A kind of signal outbound course of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor: the signal cable 13 first superfrequency office being put transducer inserts in the secondary outgoing line pipe 11 of sulfur hexafluoride current mutual inductor, then pass from the through wires hole 12 this secondary outgoing line pipe 11 inwall, be electrically connected with connector 16 one end in the signal ejector being arranged on through hole on base for current transformer 14 other (namely in Fig. 1 below through hole), then draw from the other end of this connector 16.
Common radio frequency connector is made up of three parts usually: shell, insulator and inner wire, though be tight fit between inner wire and insulator, but do not have hermetic seal function, therefore the invention provides a kind of signal ejector of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, hermetic seal effect can be ensured.
The shell of the connector 16 in the present invention selects brass, inner wire 1 selects kovar alloy, and the temperature expansion coefficient of this material is little, and within the scope of room temperature to 300 DEG C with the expansion coefficient similar of glass, therefore can with glass matched seal, and sealing-in place will be caused to ftracture because of variations in temperature.
The upper shell 8 forming shell in the present invention is connected by helicitic texture with lower house 7, and is tightened with certain torsional moment.For avoiding in the process of tightening shell, glass insulator 3 is because of stressed excessive and destroyed, can reserve gap specially, the extruding force produced between such upper shell 8 and lower house 7 will concentrate on flange face place, thus glass insulator 3 can be avoided to be destroyed because of stressed.
Above-described the specific embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (2)
1. the signal ejector of a sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, it is characterized in that: comprise and be welded on the connector mounting seat (15) that on base of mutual inductor, through hole is other, thus make hermetic seal between base of mutual inductor and connector mounting seat (15), in the middle of this connector mounting seat (15), also have through hole, a connector (16) to insert in this through hole and is fixedly mounted in connector mounting seat (15); Wherein connector (16) is made up of the inner wire (1) in the lining (6) in shell, shell, the glass insulator (3) in lining (6) and glass insulator (3), and lining (6), glass insulator (3) and inner wire (1) be through sintering be melted glass bonding after cool an entirety of formation, previous housings is made up of the upper shell be threaded connection (8) and lower house (7), and lining (6) is welded on upper shell (8) or lower house (7) inwall, thus make lining (6) both sides hermetic seal;
Wherein inner wire (1) and lining (6) all adopt kovar alloy material;
Wherein in the shell of lining (6) and glass insulator (3) both sides, dielectric (2) is all installed;
The lower house (7) of its housing stretches in upper shell (8), and this lower house (7) leaves gap topmost and between upper shell (8) inwall on the direction along housing axis, thus damage glass insulator (3) when avoiding screwing upper shell (8) and lower house (7);
Wherein on the shell of connector (16), be provided with boss, this boss has through hole, thus by bolt (5), connector (16) is fixed in connector mounting seat (15), and between boss and connector mounting seat (15), be equipped with silicone rubber pad (4), thus make hermetic seal between connector (16) and connector mounting seat (15).
2. the signal outbound course of a sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor, it is characterized in that: the signal cable (13) superfrequency office being put transducer inserts in the secondary outgoing line pipe (11) of sulfur hexafluoride current mutual inductor, then pass from the through wires hole (12) this secondary outgoing line pipe (11) inwall, connector (16) one end in the signal ejector of the claim 1 other with being arranged on the upper through hole of base for current transformer (14) is electrically connected, then draws from the other end of this connector (16).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210235755.0A CN102751622B (en) | 2012-07-10 | 2012-07-10 | Signal eduction device and method of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor |
| PCT/CN2012/082789 WO2014008718A1 (en) | 2012-07-10 | 2012-10-11 | Signal extraction device and method for ultrahigh-frequency partial discharge sensor implanted in sulfur hexafluoride current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210235755.0A CN102751622B (en) | 2012-07-10 | 2012-07-10 | Signal eduction device and method of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102751622A CN102751622A (en) | 2012-10-24 |
| CN102751622B true CN102751622B (en) | 2015-06-24 |
Family
ID=47031608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210235755.0A Expired - Fee Related CN102751622B (en) | 2012-07-10 | 2012-07-10 | Signal eduction device and method of sulfur hexafluoride current transformer implanted-type ultrahigh frequency partial discharge sensor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102751622B (en) |
| WO (1) | WO2014008718A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836191A (en) * | 2012-11-27 | 2014-06-04 | 北京航天试验技术研究所 | Method for sealing low-temperature sensor |
| JP2014157775A (en) | 2013-02-18 | 2014-08-28 | Sanyo Denki Co Ltd | Shield cable with sealing member |
| CN105510775A (en) * | 2015-11-27 | 2016-04-20 | 广东电网有限责任公司电力科学研究院 | Installation method of ultrahigh-frequency sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2372328Y (en) * | 1999-06-16 | 2000-04-05 | 中国科学院金属研究所 | Telemeteric monitoring device for pipeline parameters |
| CN2468174Y (en) * | 2000-07-05 | 2001-12-26 | 富士康(昆山)电脑接插件有限公司 | Electric connector assembly |
| CN101510654A (en) * | 2009-03-20 | 2009-08-19 | 贵州航天电器股份有限公司 | Air-tight seal socket |
| CN202134668U (en) * | 2010-12-28 | 2012-02-01 | 山东迪龙电缆有限公司 | Novel waterproof tensile connecting device for cables |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02115771A (en) * | 1988-10-26 | 1990-04-27 | Toshiba Corp | Gas insulated current transformer |
| CN1115566C (en) * | 1997-05-21 | 2003-07-23 | 株式会社日立制作所 | Partial discharge detector of gas-insulated apparatus |
| CN2717032Y (en) * | 2004-03-18 | 2005-08-10 | 武汉力兴电源股份有限公司 | Electrode leading-out device for large-capacity battery |
| KR101091827B1 (en) * | 2009-05-08 | 2011-12-08 | 동우전기 주식회사 | The outdoor high voltage mold-type current transformer with partial discharge detection sensor |
| CN201838736U (en) * | 2010-03-15 | 2011-05-18 | 天津海泰超导电子有限公司 | Welding type wall-penetrating radio-frequency coaxial connector |
| CN102347548A (en) * | 2011-07-19 | 2012-02-08 | 中航光电科技股份有限公司 | Hermetically-sealed connector and manufacturing method thereof |
-
2012
- 2012-07-10 CN CN201210235755.0A patent/CN102751622B/en not_active Expired - Fee Related
- 2012-10-11 WO PCT/CN2012/082789 patent/WO2014008718A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2372328Y (en) * | 1999-06-16 | 2000-04-05 | 中国科学院金属研究所 | Telemeteric monitoring device for pipeline parameters |
| CN2468174Y (en) * | 2000-07-05 | 2001-12-26 | 富士康(昆山)电脑接插件有限公司 | Electric connector assembly |
| CN101510654A (en) * | 2009-03-20 | 2009-08-19 | 贵州航天电器股份有限公司 | Air-tight seal socket |
| CN202134668U (en) * | 2010-12-28 | 2012-02-01 | 山东迪龙电缆有限公司 | Novel waterproof tensile connecting device for cables |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102751622A (en) | 2012-10-24 |
| WO2014008718A1 (en) | 2014-01-16 |
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| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121231 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121231 Address after: The Yellow River East Road, Jinfeng District, Yinchuan city 750002 the Ningxia Hui Autonomous Region 716 Applicant after: Electric Power Institute of Science, Ningxia Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: The Yellow River East Road, Jinfeng District, Yinchuan city 750002 the Ningxia Hui Autonomous Region 716 Applicant before: Electric Power Institute of Science, Ningxia Electric Power Co., Ltd. |
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