CN103713175A - Combined optical transformer for novel GIS - Google Patents
Combined optical transformer for novel GIS Download PDFInfo
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- CN103713175A CN103713175A CN201310721887.9A CN201310721887A CN103713175A CN 103713175 A CN103713175 A CN 103713175A CN 201310721887 A CN201310721887 A CN 201310721887A CN 103713175 A CN103713175 A CN 103713175A
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Abstract
The invention provides a combined optical transformer for a novel GIS. An all-fiber current transformer sensing ring is mounted at one end of a flange body covered by a flange cover board, and an optical voltage transformer sensing head is embedded into a chamber of the flange body; the all-fiber current transformer sensing ring is connected with an external all-fiber current transformer electric unit through a polarization-maintaining fiber; the optical voltage transformer sensing head is connected with an external optical voltage transformer electric unit through a single-mode fiber and a polarization maintaining fiber; the one end of the flange body covered by the flange cover board is mounted at one end of the external GIS through the flange cover board in an abutting mode, the other end of the flange body is mounted at the other end of the external GIS in an abutting mode; parts in the all-fiber current transformer sensing ring, such as the flange body and the flange cover board are separated by employing insulation rings to block ring current, the mounting part is sealed by employing an O-type sealing ring. The combined optical transformer for the novel GIS has advantages of compact structure, insulative, simple and reliable performance, flexible mounting and good sealing performance.
Description
Technical field
The invention belongs to mutual inductor field, relate to a kind of novel GIS combined type optical transformer.
Background technology
Along with the development of electric system to high-voltage large current direction, although, there is the deficiency in the engineerings such as mutual inductor volume is large and heavy, installation difficulty, cost is high, insulation system is complicated, magnetic saturation phenomenon in traditional electromagnetic type current/voltage mutual inductor comparative maturity.
Electronic mutual inductor is compared and is had high precision with traditional electromagnetic transformer, high linearity, broadband, the advantage such as volume is little, lightweight.Optical transformer relies on the advantage in its principle, becomes the new direction of electronic high-voltage transformer research.
That metal enclosed gas-insulated high-voltage switchgear assembly (GIS) has is reliable, processing safety is high, maintenance workload is little, the time between overhauls(TBO) is short, conserve space, easy for installation, not contaminated and salt fog etc. around environmental factor affect advantage, become Intelligent transformer station, especially the ideal chose of high voltage substation.
By current transformer and voltage transformer (VT) combination, highly integrated with GIS, can at utmost reduce installing space, save cost, bring into play intelligent GIS intellectuality and integrated advantage, become a kind of inevitable application trend.
Existing active electronic combination transformer is based on capacitance partial pressure electrical measurement method, on GIS, apply, not only volume is larger, and there is serious impact to active electronic combination transformer in GIS application fast transient overvoltage (VFTO), cause active electronic combination transformer remote end module failure rate very high, particularly electric pressure is higher, and problem is more outstanding.
The mutual inductor of passive full optical profile type can solve GIS application fast transient overvoltage problem, and better conserve space, safer, more low-carbon (LC).But passive type optical transformer does not also have a knockdown mutual inductor at present.
Summary of the invention
The technical matters that the present invention solves is: overcome the deficiencies in the prior art, a kind of novel GIS combined type optical transformer is provided, adopt passive type optical transformer fundamentally to realize the isolation of high pressure photoelectricity, there is excellent anti-VFTO interference performance, and accuracy is high, measurement range is large, transient characterisitics are good, installation integrated level is high, volume is little, conserve space cost.
Technical scheme of the present invention is: a kind of novel GIS combined type optical transformer, comprises flange body, dead ring, O RunddichtringO, flange plate, all-fiber current transformator sensing ring, polarization maintaining optical fibre, all-fiber current transformator electric unit, optical voltage transformer electric unit, single-mode fiber, optical voltage transformer sensing head; All-fiber current transformator sensing ring is once responsive part of all-fiber current transformator high pressure, be installed in one end that flange body is stamped flange plate, optical voltage transformer sensing head is once responsive part of optical voltage transformer high pressure, setting-in enters in flange body cavity, and installed surface adopts O RunddichtringO to seal; All-fiber current transformator sensing ring is connected with outside all-fiber current transformator electric unit by polarization maintaining optical fibre; Optical voltage transformer sensing head is connected with outside optical voltage transformer electric unit with polarization maintaining optical fibre by single-mode fiber; Flange body is stamped one end of flange plate by one end abutting joint of flange plate and outside GIS, and adopts O RunddichtringO to seal, the other end abutting joint of the other end of flange body and outside GIS, and adopt O RunddichtringO to seal; At all-fiber current transformator sensing ring, with interior part, adopt dead ring that flange body and flange plate are separated, blocking-up circulation; Dead ring both ends of the surface adopt O RunddichtringO to seal; Described GIS is metal enclosed gas-insulated high-voltage switchgear assembly.
The number of all-fiber current transformator sensing ring is two, stacks up and down and is installed in one end that flange body is stamped flange plate.
The number of optical voltage transformer sensing head is two, and symmetry is flush-mounted in flange body cavity both sides.
The present invention's advantage is compared with prior art:
1, adopt full optical current/voltage transformer (VT) integrated technique, realize the isolation of high pressure photoelectricity, there is excellent anti-VFTO interference performance, and accuracy is high, measurement range is large, transient characterisitics are good, in UHV (ultra-high voltage), extra-high voltage application, has outstanding technical advantage.
2, adopt dead ring blocking-up circulation, stop the interference of foreign current to all-fiber current transformator, thereby realize accurately, measure.
3, optical voltage transformer adopts embedded mounting means, and installation integrated level is high, and volume is little, conserve space cost.
Accompanying drawing explanation
Fig. 1 is optical voltage transformer number of the present invention while being two, symmetrical structure schematic diagram.
Fig. 2 is optical voltage transformer number of the present invention while being two, unsymmetric structure schematic diagram.
Fig. 3 is optical voltage transformer number of the present invention while being, structural representation.
Fig. 4 is principle of work schematic diagram of the present invention.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that patent of the present invention is solved, below in conjunction with drawings and Examples, this patent is further elaborated.
As shown in Figure 1, a kind of novel GIS comprises flange body 1, dead ring 2, O RunddichtringO 3, flange plate 4, two all-fiber current transformator sensing rings 5, polarization maintaining optical fibre 6, all-fiber current transformator electric unit 7, optical voltage transformer electric unit 8, single-mode fiber 9, two optical voltage transformer sensing heads 10 with combined type optical transformer; All-fiber current transformator sensing ring 5 is once responsive part of all-fiber current transformator high pressure, two all-fiber current transformator sensing rings 5 stack up and down and are installed in one end that flange body 1 is stamped flange plate 4, optical voltage transformer sensing head 10 is once responsive part of optical voltage transformer high pressure, two symmetrical setting-ins of optical voltage transformer sensing head 10 enter in flange body 1 cavity, and installed surface adopts O RunddichtringO 3 to seal; All-fiber current transformator sensing ring 5 is connected with outside all-fiber current transformator electric unit 7 by polarization maintaining optical fibre 6; Optical voltage transformer sensing head 10 is connected with outside optical voltage transformer electric unit 8 with polarization maintaining optical fibre 6 by single-mode fiber 9; Flange body 1 is stamped one end of flange plate 4 by one end abutting joint of flange plate 4 and outside GIS, and adopts O RunddichtringO 3 to seal, the other end abutting joint of the other end of flange body 1 and outside GIS, and adopt O RunddichtringO 3 to seal; At all-fiber current transformator sensing ring 5, with interior part, adopt dead ring 2 that flange body 1 and flange plate 4 are separated, blocking-up circulation; Dead ring 2 both ends of the surface adopt O RunddichtringO 3 to seal; Described GIS is metal enclosed gas-insulated high-voltage switchgear assembly.
As shown in Figure 4, FOCT is all-fiber current transformator, and OVT is optical voltage transformer; When application is installed, high-field electrode is passed to novel GIS combined type optical transformer, when having high-voltage signal to flow into high-field electrode, all-fiber current transformator sensing ring 5 senses the current signal on high-field electrode, and flange body 1 adopts dead ring 2 to block circulation at all-fiber current transformator sensing ring 5 with interior part with flange plate 4 and processes; All-fiber current transformator electric unit 7 produces light signal, and be transferred to all-fiber current transformator sensing ring 5 by polarization maintaining optical fibre 6, all-fiber current transformator sensing ring 5 senses the current signal on high-field electrode, and the light signal with current signal is transferred back on all-fiber current transformator electric unit 7 by polarization maintaining optical fibre 6; Optical voltage transformer electric unit 8 produces light signal, and be transferred to optical voltage transformer sensing head 10 by polarization maintaining optical fibre 6, voltage signal on optical voltage transformer sensing head 10 induction high-field electrodes, and the light signal with voltage signal is transferred back on optical voltage transformer electric unit 8 by single-mode fiber 9; All-fiber current transformator electric unit 7 and optical voltage transformer electric unit 8 carry out demodulation by the light signal with current signal receiving with the light signal of voltage signal respectively, and be presented on back-end computer, Real-Time Monitoring also reflects the signal being carried on high-field electrode.The present invention also can adjust by appropriate size, can from the product Matching installations such as the GIS of different high-voltage switch gear producer, isolating switch.
As shown in Figure 2, when optical voltage transformer number is two, optical voltage transformer also can asymmetricly be embedded in flange body side.
As shown in Figure 3, optical voltage transformer also can only have one, and can be embedded in optional position in flange body side.
According to practical application needs, the number of optical voltage transformer sensing head 10 can only have one, also can have two; When the number of optical voltage transformer sensing head 10 is one, can be installed on optional position in flange body 1 cavity; When the number of optical voltage transformer sensing head 10 is two, can symmetrical or asymmetric being flush-mounted in flange body 1 cavity.
More than by the detailed description of concrete and preferred embodiment patent of the present invention; but those skilled in the art should be understood that; patent of the present invention is not limited to the above embodiment; all within the spirit and principle of patent of the present invention; any modification of doing, be equal to replacement etc., within all should being included in the protection domain of patent of the present invention.
The content not being described in detail in instructions of the present invention belongs to those skilled in the art's known technology.
Claims (3)
1. a novel GIS combined type optical transformer, is characterized in that: comprise flange body (1), dead ring (2), O RunddichtringO (3), flange plate (4), all-fiber current transformator sensing ring (5), polarization maintaining optical fibre (6), all-fiber current transformator electric unit (7), optical voltage transformer electric unit (8), single-mode fiber (9), optical voltage transformer sensing head (10); All-fiber current transformator sensing ring (5) is once responsive part of all-fiber current transformator high pressure, being installed on flange body (1) is stamped in one end of flange plate (4), optical voltage transformer sensing head (10) is once responsive part of optical voltage transformer high pressure, setting-in enters in flange body (1) cavity, and installed surface adopts O RunddichtringO (3) to seal; All-fiber current transformator sensing ring (5) is connected with outside all-fiber current transformator electric unit (7) by polarization maintaining optical fibre (6); Optical voltage transformer sensing head (10) is connected with outside optical voltage transformer electric unit (8) by single-mode fiber (9) and polarization maintaining optical fibre (6); Flange body (1) is stamped one end of flange plate (4) by one end abutting joint of flange plate (4) and outside GIS, and adopt O RunddichtringO (3) to seal, the other end of flange body (1) and the other end abutting joint of outside GIS, and adopt O RunddichtringO (3) to seal; At all-fiber current transformator sensing ring (5), with interior part, adopt dead ring (2) that flange body (1) and flange plate (4) are separated, blocking-up circulation; Dead ring (2) both ends of the surface adopt O RunddichtringO (3) to seal; Described GIS is metal enclosed gas-insulated high-voltage switchgear assembly.
2. a kind of novel GIS combined type optical transformer of stating according to claim 1, is characterized in that: the number of all-fiber current transformator sensing ring (5) is two, stacks to be up and down installed on flange body (1) and to be stamped in one end of flange plate (4).
3. a kind of novel GIS combined type optical transformer of stating according to claim 1, is characterized in that: the number of optical voltage transformer sensing head (10) is two, and symmetry is flush-mounted in flange body (1) cavity both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721887.9A CN103713175A (en) | 2013-12-24 | 2013-12-24 | Combined optical transformer for novel GIS |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310721887.9A CN103713175A (en) | 2013-12-24 | 2013-12-24 | Combined optical transformer for novel GIS |
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| CN103713175A true CN103713175A (en) | 2014-04-09 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569533A (en) * | 2014-12-30 | 2015-04-29 | 北京航天时代光电科技有限公司 | External integrated type all fiber optical current transformer for isolated-type circuit breaker |
| CN105425006A (en) * | 2015-11-06 | 2016-03-23 | 北京航天时代光电科技有限公司 | Novel full-fiber current transformer of isolation circuit breaker type |
| CN105548663A (en) * | 2016-02-25 | 2016-05-04 | 江苏思源赫兹互感器有限公司 | Unbalanced current measuring device |
| CN105699725A (en) * | 2014-11-24 | 2016-06-22 | 国家电网公司 | Connecting flange of equipotential shielded capacitive voltage transformer |
| CN106353554A (en) * | 2016-08-24 | 2017-01-25 | 四方继保（武汉）软件有限公司 | Three-phase total box optical electronic current mutual inductor which is adopted by GIS |
| CN110118890A (en) * | 2019-06-05 | 2019-08-13 | 国网四川省电力公司内江供电公司 | A kind of optical voltage sensor hanging device for GIS bus voltage measurement |
| CN111337729A (en) * | 2020-03-17 | 2020-06-26 | 北京航天时代光电科技有限公司 | Novel compound interior cone-type optical voltage transformer |
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| CN201712667U (en) * | 2009-12-18 | 2011-01-19 | 浙江吉利汽车研究院有限公司 | Energy-absorbing structure for automobile front cross beam |
| CN201716355U (en) * | 2010-06-10 | 2011-01-19 | 中国西电电气股份有限公司 | Electronic current and voltage transformer for 126kVGIS |
| CN201812668U (en) * | 2010-09-16 | 2011-04-27 | 南京南瑞继保电气有限公司 | Electronic type current and voltage combined mutual inductor of three-phase enclosed GIS (Geographic Information System) |
| CN202121247U (en) * | 2011-07-15 | 2012-01-18 | 南京中德保护控制系统有限公司 | Mounting flange for fully-optical current transformer and GIS (geographic information system) combination |
| CN102496447A (en) * | 2011-12-01 | 2012-06-13 | 中国西电电气股份有限公司 | Electronic single-phase current voltage transformer for gas insulated metal-closed switchgear |
| CN103021646A (en) * | 2012-09-03 | 2013-04-03 | 常州博瑞电力自动化设备有限公司 | Electronic current/voltage transformer-shielding cylinder for GISes (gas-insulated switchgears) |
| CN103208360A (en) * | 2013-03-21 | 2013-07-17 | 许继集团有限公司 | Electronic-type current-voltage-combined transformer for GIS (gas insulated switchgear) |
| CN103424594A (en) * | 2013-07-26 | 2013-12-04 | 易能乾元（北京）电力科技有限公司 | High-tension sensing optical voltage transformer |
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2013
- 2013-12-24 CN CN201310721887.9A patent/CN103713175A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201712667U (en) * | 2009-12-18 | 2011-01-19 | 浙江吉利汽车研究院有限公司 | Energy-absorbing structure for automobile front cross beam |
| CN201716355U (en) * | 2010-06-10 | 2011-01-19 | 中国西电电气股份有限公司 | Electronic current and voltage transformer for 126kVGIS |
| CN201812668U (en) * | 2010-09-16 | 2011-04-27 | 南京南瑞继保电气有限公司 | Electronic type current and voltage combined mutual inductor of three-phase enclosed GIS (Geographic Information System) |
| CN202121247U (en) * | 2011-07-15 | 2012-01-18 | 南京中德保护控制系统有限公司 | Mounting flange for fully-optical current transformer and GIS (geographic information system) combination |
| CN102496447A (en) * | 2011-12-01 | 2012-06-13 | 中国西电电气股份有限公司 | Electronic single-phase current voltage transformer for gas insulated metal-closed switchgear |
| CN103021646A (en) * | 2012-09-03 | 2013-04-03 | 常州博瑞电力自动化设备有限公司 | Electronic current/voltage transformer-shielding cylinder for GISes (gas-insulated switchgears) |
| CN103208360A (en) * | 2013-03-21 | 2013-07-17 | 许继集团有限公司 | Electronic-type current-voltage-combined transformer for GIS (gas insulated switchgear) |
| CN103424594A (en) * | 2013-07-26 | 2013-12-04 | 易能乾元（北京）电力科技有限公司 | High-tension sensing optical voltage transformer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699725A (en) * | 2014-11-24 | 2016-06-22 | 国家电网公司 | Connecting flange of equipotential shielded capacitive voltage transformer |
| CN104569533A (en) * | 2014-12-30 | 2015-04-29 | 北京航天时代光电科技有限公司 | External integrated type all fiber optical current transformer for isolated-type circuit breaker |
| CN104569533B (en) * | 2014-12-30 | 2017-11-07 | 北京航天时代光电科技有限公司 | A kind of external integrated form all-fiber current transformator of isolation circuit breakers |
| CN105425006A (en) * | 2015-11-06 | 2016-03-23 | 北京航天时代光电科技有限公司 | Novel full-fiber current transformer of isolation circuit breaker type |
| CN105548663A (en) * | 2016-02-25 | 2016-05-04 | 江苏思源赫兹互感器有限公司 | Unbalanced current measuring device |
| CN106353554A (en) * | 2016-08-24 | 2017-01-25 | 四方继保（武汉）软件有限公司 | Three-phase total box optical electronic current mutual inductor which is adopted by GIS |
| CN110118890A (en) * | 2019-06-05 | 2019-08-13 | 国网四川省电力公司内江供电公司 | A kind of optical voltage sensor hanging device for GIS bus voltage measurement |
| CN111337729A (en) * | 2020-03-17 | 2020-06-26 | 北京航天时代光电科技有限公司 | Novel compound interior cone-type optical voltage transformer |
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Application publication date: 20140409 |