CN2329005Y - 110 KV non-subdivided optical fibre voltag mutual inductor - Google Patents
110 KV non-subdivided optical fibre voltag mutual inductor Download PDFInfo
- Publication number
- CN2329005Y CN2329005Y CN 98235725 CN98235725U CN2329005Y CN 2329005 Y CN2329005 Y CN 2329005Y CN 98235725 CN98235725 CN 98235725 CN 98235725 U CN98235725 U CN 98235725U CN 2329005 Y CN2329005 Y CN 2329005Y
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- voltage
- insulation sleeve
- electrode
- optical fibre
- metal tube
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Abstract
The utility model relates to an 110KV non-subdivided optical fiber voltage mutual inductor. 110KV high-voltage is directly communicated with a high-voltage electrode. A ground electrode is communicated with a lower metal pipe and fixed on a base. An insulation jacket is arranged between the high voltage electrode and the grounding electrode. An optical fiber voltage sensor is arranged in a silastic tube insulation jacket and fixed between an upper metal pyubeipe and a lower metal tube. The interior of the insulation jacket is filled with Sulfur hexafluoride gas. The interior of the base is provided with a Sulfur hexafluoride pressure gauge, a Density relay and an optical fiber connection box. All outer connecting positions are provided with sealing rings. The utility model has the advantages of small size, light weight, high precision, no affection of electromagnetic field jamming, no loss, etc.
Description
The utility model belongs to a kind of Fiber-Optic Voltage.
Be used for the high-tension voltage transformer (VT) of power system measuring, owing to mostly adopt electromagnetic induction principle, cored and coil is subject to electromagnetic interference (EMI), and has ferromagnetic resonance to occur.Along with the electric system capacity increases, voltage raises, and its volume is more and more big, and weight and cost also increase thereupon.In order to overcome above-mentioned shortcoming, closely+year over countries in the world work out the high voltage that some Fiber-Optic Voltage are used to measure electric system, developed the Fiber-Optic Voltage of measuring below the 1000kV as the Toshiba of French Alstom, U.S. ABB AB, Japan, Sumitomo company etc., and in Operation of Electric Systems for many years, its measuring accuracy reaches ± and 0.2%.China HUST and Guangdong Xin Huishi power office also develop the Fiber-Optic Voltage of 110kV jointly, and at the electric system hanging net operation more than 3 years.But these Fiber-Optic Voltage are through just being added on the optical fibre voltage sensor behind the capacitance partial pressure with high voltage, utilize the electrooptical effect of electro-optic crystal that voltage signal is become by the light signal after the voltage modulated, signal processing unit in optical fiber reaches the pulpit becomes electric signal and handles.Because it all still is bigger making its volume and weight with capacitive divider.
The purpose of this utility model provides no dividing potential drop Fiber-Optic Voltage, is about to high voltage and directly is added on the optical fibre voltage sensor, and overlap and fill sulfur hexafluoride (SF with novel silicon rubber insulation
6) gas solves high-tension Insulation Problems, with the cancellation capacitive divider, reduce volume and weight, reduce cost.
Constituting of said 110 kilovolts of no dividing potential drop Fiber-Optic Voltage of the present utility model, the top of voltage transformer (VT) be provided with 110 kilovolts of high voltages directly be communicated with on metal tube 1, last metal tube 1 is connected with high-field electrode 2, and ground-electrode 4 is communicated with following metal tube 5 and is fixed on the base 6; Between high-field electrode 2 and ground-electrode 4, be provided with insulation sleeve 3; In order to make electric field even, deposit on high-field electrode 2 and the ground-electrode 4 and all be added with grading ring 7; Optical fibre voltage sensor 8 is fixed between metal tube 1 and the following metal tube 5, and places in the silicone rubber tube insulation sleeve 9, fills sulfur hexafluoride (SF in the insulation sleeve 9
6) gas 10; Case 11 is housed on the insulation sleeve 9, and insulation sleeve 9 bottoms are base 6, are mounted with SF in the base 6
6 Tensimeter 12, SF
6 Density monitor 13 and optical fiber connecting box 14; The optical fiber 15 of drawing from optical fibre voltage sensor 8 is connected to optical Fiber Closure 14 behind seal pad 16.All be provided with O-ring seal at all with the outside position that is connected, to guarantee SF
6Do not leak for a long time.
Said optical fibre voltage sensor 8 adopts bismuth germanium oxide (BGO) crystal of cross electro-optical effect, carries out temperature compensation with double light path.Light signal is handled by signal processing circuit 17 behind optical cable 23, and delivers to measuring apparatus 18 and protective relaying device 19.
There is the epoxy cylinder 20 of vacuum pouring said silicone rubber tube insulation sleeve 9 inside, and epoxy cylinder 20 is outer a silicon rubber full skirt 21, its epoxy cylinder 20 be up and down sealing flange 22.
The said no dividing potential drop Fiber-Optic Voltage of the utility model, its advantage be measuring accuracy height, ratio be not more than ± 0.2%, measure rated voltage more than 110 kilovolts, the volume ratio like product is little more than one times, weight and cost are all than SF
6The conventional voltage mutual inductor low by 1/2nd.
The said no dividing potential drop Fiber-Optic Voltage of the utility model, its ratio is in ± 0.2% after testing, through industrial frequency withstand voltage, lightning impulse is withstand voltage, shelf depreciation, power frequency is wet withstand voltage, test such as insulating sleeve bending resistance and the long stability test of process, show that technology described in the utility model has the precision height, volume is little, in light weight and cost is low, no electromagnetic interference (EMI), advantages such as bandwidth, and it is almost lossless under rated voltage, the zero load and the load loss that do not have general electromagnetic potential transformer, energy savings has tangible economic benefit and social benefit.
Accompanying drawing 1:110 kilovolt does not have dividing potential drop Fiber-Optic Voltage structural representation.
Claims (3)
1, a kind of 110 kilovolts of no dividing potential drop Fiber-Optic Voltage, it is characterized in that, the top of voltage transformer (VT) be provided with 110 kilovolts of high voltages directly be communicated with on metal tube (1), last metal tube (1) is connected with high-field electrode (2), and ground-electrode (4) is communicated with following metal tube (5) and is fixed on the base (6); Between high-field electrode (2) and ground-electrode (4), be provided with insulation sleeve (3); Optical fibre voltage sensor (8) is fixed between metal tube (1) and the following metal tube (5), and places in the silicone rubber tube insulation sleeve (9), is filled with sulfur hexafluoride gas (10) in the insulation sleeve (9); Case (11) is housed on the insulation sleeve (9), and insulation sleeve (9) bottom is base (6), is mounted with sulfur hexafluoride tensimeter (12), sulfur hexafluoride density relay (13) and optical fiber connecting box (14) in the base (6); The optical fiber (15) of drawing from Fiber-Optic Voltage (8) is connected to optical Fiber Closure (14) behind seal pad (16); All be provided with O-ring seal at all with the outside position that is connected.
According to the said optical fibre voltage sensor of claim 1, it is characterized in that 2, said optical fibre voltage sensor (8) adopts the bismuth-germanium-oxide crystal of cross electro-optical effect.
3, according to the said optical fibre voltage sensor of claim 1, it is characterized in that, there is the bad oxygen tube (20) of vacuum pouring said silicone rubber tube insulation sleeve (9) inside, and epoxy cylinder (20) is outer a silicon rubber full skirt (21), its epoxy cylinder (20) be up and down sealing flange (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98235725 CN2329005Y (en) | 1998-05-09 | 1998-05-09 | 110 KV non-subdivided optical fibre voltag mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98235725 CN2329005Y (en) | 1998-05-09 | 1998-05-09 | 110 KV non-subdivided optical fibre voltag mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329005Y true CN2329005Y (en) | 1999-07-14 |
Family
ID=33983940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98235725 Expired - Fee Related CN2329005Y (en) | 1998-05-09 | 1998-05-09 | 110 KV non-subdivided optical fibre voltag mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329005Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680918B (en) * | 2007-04-18 | 2012-08-22 | 株式会社东芝 | Optical VT device |
| CN102914677A (en) * | 2011-09-26 | 2013-02-06 | 北京航天时代光电科技有限公司 | Tank-type single-phase optical voltage transformer |
| WO2013044542A1 (en) * | 2011-09-26 | 2013-04-04 | 北京航天时代光电科技有限公司 | Optical voltage transformer based on electro-optical effect |
| CN103472278A (en) * | 2013-09-05 | 2013-12-25 | 江苏思源赫兹互感器有限公司 | Column-type optical fiber voltage transformer |
| US9121872B2 (en) | 2011-09-26 | 2015-09-01 | Beijing Aerospace Times Optical-Electronic Technology Co. Ltd. | Electro-optic effect based optical voltage transformer |
-
1998
- 1998-05-09 CN CN 98235725 patent/CN2329005Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680918B (en) * | 2007-04-18 | 2012-08-22 | 株式会社东芝 | Optical VT device |
| CN102914677A (en) * | 2011-09-26 | 2013-02-06 | 北京航天时代光电科技有限公司 | Tank-type single-phase optical voltage transformer |
| WO2013044542A1 (en) * | 2011-09-26 | 2013-04-04 | 北京航天时代光电科技有限公司 | Optical voltage transformer based on electro-optical effect |
| CN102914677B (en) * | 2011-09-26 | 2013-06-05 | 北京航天时代光电科技有限公司 | Tank-type single-phase optical voltage transformer |
| US9121872B2 (en) | 2011-09-26 | 2015-09-01 | Beijing Aerospace Times Optical-Electronic Technology Co. Ltd. | Electro-optic effect based optical voltage transformer |
| CN103472278A (en) * | 2013-09-05 | 2013-12-25 | 江苏思源赫兹互感器有限公司 | Column-type optical fiber voltage transformer |
| CN103472278B (en) * | 2013-09-05 | 2015-11-18 | 江苏思源赫兹互感器有限公司 | A kind of Column-type optical fiber voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |