CN208999476U - A kind of optical fiber type voltage transformer - Google Patents
A kind of optical fiber type voltage transformer Download PDFInfo
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- CN208999476U CN208999476U CN201821672850.6U CN201821672850U CN208999476U CN 208999476 U CN208999476 U CN 208999476U CN 201821672850 U CN201821672850 U CN 201821672850U CN 208999476 U CN208999476 U CN 208999476U
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- Prior art keywords
- optical fiber
- shell
- voltage transformer
- scapus
- quartz
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 74
- 239000000835 fiber Substances 0.000 claims abstract description 57
- 238000009413 insulation Methods 0.000 claims abstract description 36
- 239000004593 Epoxy Substances 0.000 claims abstract description 33
- 239000013078 crystal Substances 0.000 claims abstract description 33
- 239000011521 glass Substances 0.000 claims abstract description 22
- 239000012212 insulator Substances 0.000 claims abstract description 20
- 230000010287 polarization Effects 0.000 claims abstract description 18
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005350 ferromagnetic resonance Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011540 sensing material Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to voltage transformer fields, more particularly to a kind of optical fiber type voltage transformer, including epoxy insulation pipe, the electrode inside epoxy insulation pipe, quartz-crystal scapus and sensor fibre, the electrode includes a high-field electrode, a low-field electrode and several connection electrodes；The outside of the quartz-crystal scapus is equipped with optical fiber track, the inner wrap of the optical fiber track has sensor fibre, one end of the sensor fibre is connected with Low coherence multimode laser diode by single-mode polarization maintaining fiber, and the other end of sensor fibre is connected with reception optical fiber by single-mode polarization maintaining fiber；The epoxy insulation pipe includes first shell and second shell, is connected between first shell and second shell by insulated bolt, is respectively equipped with the first glass insulator and the second glass insulator on the outside of the first shell, second shell.The utility model provides a kind of optical fiber type voltage transformer replaced with stronger anti-electromagnetic interference capability, optical fiber and conveniently and be convenient for digital development.
Description
Technical field
The utility model belongs to voltage transformer field, and in particular to a kind of optical fiber type voltage transformer.
Background technique
Voltage transformer is indispensable important equipment in electric system, and effect is in proportion will be on transmission line of electricity
High voltage drop is to that can use instrument standard figures measured directly, directly to be measured with instrument.Traditional mutual induction of voltage
Device mainly has electromagnetic type, in addition there are also non electromagnetic, such as electronic type and photo-electric, currently, in the prior art, using
When high voltage in the voltage measuring transformer electric system of this type, since they use electromagnetic induction principle, it is cored and
Coil vulnerable to electromagnetic interference, and will appear ferromagnetic resonance phenomenon, with the increase of power system capacity, the raising of voltage, body
Product, weight are increasing, and insulating properties is bad.
Optical fiber type voltage transformer uses novel sensing principle, and using photoelectron developed in recent years, optic communication swashs
Light and microelectric technique, can be efficiently against the defect of conventional voltage transformer, while can be exported with light digital signal, is electric power
The safe operation of system, save the cost, optimization secondary device provide solid foundation, but optical fiber itself fragile, machine
Tool intensity difference, needs replacing during use, and the optical fiber of general voltage transformer replaces complex steps, the time needed
It is long.
Utility model content
The purpose of the utility model is to overcome existing deficiency, provide it is a kind of have stronger anti-electromagnetic interference capability,
Optical fiber replacement is convenient, and convenient for the optical fiber type voltage transformer of digitlization, Microcomputer development.
To achieve the above object, the technical scheme adopted by the utility model is a kind of optical fiber type voltage transformer, including
Epoxy insulation pipe, the electrode inside epoxy insulation pipe, several quartz-crystal scapus and sensor fibre, the electrode include one
High-field electrode, a low-field electrode and several connection electrodes, the quartz-crystal scapus are set in qually spaced in the interior of epoxy insulation pipe
Portion is provided with connection electrode between two adjacent quartz-crystal scapus, and the quartz-crystal scapus successively interlocks with connection electrode
Series circuit is connected into, the quartz-crystal scapus of the top connects high-field electrode, and the lowermost quartz-crystal scapus connects low-field electrode,
The high-field electrode is equipped with high tension terminal, and low-field electrode is grounded by low tension terminal；
The outside of the quartz-crystal scapus is equidistantly bonded with helical form optical fiber track, and the inside of the optical fiber track is same
Tension is wound with sensor fibre, and one end of the sensor fibre is connected with Low coherence multi-mode laser two by single-mode polarization maintaining fiber
Pole pipe, the other end of sensor fibre are connected with reception optical fiber by single-mode polarization maintaining fiber, the same isostension of the reception optical fiber, etc. between
Away from the piezoelectric ceramics being wrapped in Piezoelectric Phase modulator on, the output end of the Piezoelectric Phase modulator connects Phase Tracking
The input terminal of device, the input terminal of the output end connection controller of the phase tracker, the output end of the controller are divided into two
Road, wherein be connected all the way with Piezoelectric Phase modulator, voltage signal output end of the another way as optical fiber type voltage transformer；
The epoxy insulation pipe includes first shell and second shell, passes through insulation spiral shell between first shell and second shell
It tethers and connects, several first glass insulators are uniformly provided on the outside of the first shell, if being uniformly provided on the outside of second shell
Dry second glass insulator, the upper and lower ends of the epoxy insulation pipe be threaded with respectively cricoid upper junction plate with it is cricoid
Lower connecting plate, the upper junction plate and lower connecting plate are fixedly connected to insulating flange, the insulating flange being connected with lower connecting plate
Side be equipped with terminal box.
Preferably, first glass insulator 1201 and the second glass insulator 1202 form cricoid glass insulator
12。
Preferably, the quantity of the quartz-crystal scapus is 4.
Preferably, the quartz-crystal scapus be height be 100mm, the cylindrical body that section radius is 30mm, the epoxy is exhausted
Edge pipe is the tube body that internal diameter is 100mm, length is 700mm.
Preferably, the optical fiber track is the insulated channel that section is in " recessed " shape.
Preferably, the sensor fibre and reception optical fiber are elliptical-core dual-mode fiber, the elliptical-core dual-mode fiber
Outside is coated with 3-5 μm of Kapton.
Preferably, section of the junction of the sensor fibre and single-mode polarization maintaining fiber, reception optical fiber and single-mode polarization maintaining fiber
Face is mutually staggered 30 °.
Preferably, the first shell and second shell are semicircle, and the end of first shell and second shell passes through
Mutually matched convex block is spliced into cricoid epoxy insulation pipe, is equipped with and corresponds to each other in first shell and the convex block of second shell
Threaded hole.
The beneficial effects of the utility model are:
1. epoxy insulation pipe plays the role of physical protection, glass insulator to electrode, quartz-crystal scapus and sensor fibre
Insulation effect is further enhanced, epoxy insulation pipe is connected by upper junction plate and lower connecting plate with insulating flange, and the device is facilitated
It is connected with other devices, terminal box plays a protective role to the junction of optical fiber, plays the role of storage to optical fiber；
2. using optical fiber transmits signal, device has natural anti-electromagnetic interference capability, and measurement frequency is wide, and device is not required to
Iron core is used, there is no saturation ferromagnetic resonance problems；
3. be not filled with any medium in epoxy insulation pipe, inflammable and explosive danger is not present, it is more environmentally friendly, device volume is small,
It is light-weight, it is easy to use；
4. phase tracker generates feedback control voltage by receiving the phase difference of reception optical fiber and being input to controller,
Feedback control voltage acts on Piezoelectric Phase modulator, which is output signal, is convenient for output signal to number
Word, Microcomputer development；
5. needing often to carry out checking and even replace, by epoxy insulation because of fragile, the bad mechanical strength of optical fiber itself
Pipe is set as being made of first shell and second shell, can dismantle, and facilitates inspection or replacement optical fiber, in the outer of quartz-crystal scapus
Side is equidistantly equipped with helical form optical fiber track, when replacing optical fiber, optical fiber is facilitated equidistantly to wind, and signal transmitting is accurate；
6. quartz-crystal scapus has the characteristics that high impedance, low dielectric constant as sensing material, to the distortion effect of electric field
Influence it is small, it is low to the dependence of temperature；
7. being coated with 3-5 μm of Kapton in the outside of elliptical-core dual-mode fiber, Kapton is quiet with preventing
Electricity, Inverter fed motor, feature resistant to high temperature, play a protective role to elliptical-core dual-mode fiber, guarantee the stable delivery of signal.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of optical fiber type voltage transformer of the utility model.
Fig. 2 is a kind of circuit connection diagram of optical fiber type voltage transformer of the utility model.
Fig. 3 is that a kind of first shell of the epoxy insulation pipe of optical fiber type voltage transformer of the utility model and second shell connect
Connect structural schematic diagram.
Fig. 4 is a kind of structural representation of the sensor fibre of optical fiber type voltage transformer of the utility model in optical fiber track interior
Figure.
Fig. 5 is a kind of structure that the sensor fibre of optical fiber type voltage transformer is connect with single-mode polarization maintaining fiber of the utility model
Schematic diagram.
Fig. 6 is a kind of structure that the reception optical fiber of optical fiber type voltage transformer is connect with single-mode polarization maintaining fiber of the utility model
Schematic diagram.
Numbering in the drawing are as follows: 1 is high-field electrode, and 2 be low-field electrode, and 3 be connection electrode, and 4 be sensor fibre, and 5 be quartz
Lens cylinder, 6 be Low coherence multimode laser diode, and 7 be single-mode polarization maintaining fiber, and 8 be controller, and 9 be signal output end, and 10 be pressure
Electroceramics, 11 be epoxy insulation pipe, and 12 be glass insulator, and 13 be high tension terminal, and 14 be low tension terminal, and 15 be wiring
Box, 16 be reception optical fiber, and 17 be phase tracker, and 18 be upper junction plate, and 19 be lower connecting plate, and 20 be insulating flange, and 21 be exhausted
Edge bolt, 22 be optical fiber track, and 1101 be first shell, and 1102 be second shell, 1,201 first glass insulators, 1,202 second
Glass insulator.
Specific embodiment
Specific embodiment of the present utility model is described in detail with reference to the accompanying drawing.
As shown in Fig. 1 ~ Fig. 6, a kind of optical fiber type voltage transformer, including epoxy insulation pipe 11, be located at epoxy insulation pipe 11
Internal electrode, several quartz-crystal scapus 5 and sensor fibre 4, the electrode include 1, low-field electrode 2 of a high-field electrode
With several connection electrodes 3, the quantity of the quartz-crystal scapus 5 is 4, and quartz-crystal scapus 5 is that height is 100mm, section radius
For the cylindrical body of 30mm, the quartz-crystal scapus 5 is set in qually spaced in the inside of epoxy insulation pipe 11, two adjacent quartz-crystals
Connection electrode 3 is provided between scapus 5, the quartz-crystal scapus 5 is successively cross-linked into series circuit with connection electrode 3,
The quartz-crystal scapus 5 of the top connects high-field electrode 1, and the lowermost quartz-crystal scapus 5 connects low-field electrode 2, the high-voltage electricity
Pole 1 is equipped with high tension terminal 13, and low-field electrode 2 is grounded by low tension terminal 14；
The outside of the quartz-crystal scapus 5 is equidistantly bonded with helical form optical fiber track 22, and the optical fiber track 22 is to cut
Face is in the insulated channel of " recessed " shape, and the inside of the optical fiber track 22 is wound with sensor fibre 4, the sense light with isostension
One end of fibre 4 is connected with Low coherence multimode laser diode 6 by single-mode polarization maintaining fiber 7, and the other end of sensor fibre 4 passes through list
Mould polarization maintaining optical fibre 7 is connected with reception optical fiber 16, and the same isostension of the reception optical fiber 16 is wrapped in Piezoelectric Phase modulation at equal intervals
On piezoelectric ceramics 10 in device, the input terminal of the output end connection phase tracker 17 of the Piezoelectric Phase modulator, the phase
The input terminal of the output end connection controller 8 of position tracker 17, the output end of the controller 8 is divided into two-way, wherein all the way with
Piezoelectric Phase modulator is connected, voltage signal output end of the another way as optical fiber type voltage transformer；
The epoxy insulation pipe 11 is the tube body that internal diameter is 100mm, length is 700mm, and epoxy insulation pipe 11 includes first
Shell 1101 and second shell 1102, the first shell 1101 and second shell 1102 are semicircle, first shell 1101
Cricoid epoxy insulation pipe 11 is spliced by mutually matched convex block with the end of second shell 1102, first shell 1101 with
It is equipped with mutual corresponding threaded hole on the convex block of second shell 1102, passes through between first shell 1101 and second shell 1102
Insulated bolt 21 connects, and the outside of the first shell 1101 is uniformly provided with several first glass insulators 1201, second shell
1102 outside is uniformly provided with several second glass insulators 1202, first glass insulator 1201 and the second glass insulation
The 1202 cricoid glass insulator 12 of composition of son, the upper and lower ends of the epoxy insulation pipe 11 are threaded on cricoid respectively
Connecting plate 18 and cricoid lower connecting plate 19, the upper junction plate 18 are fixedly connected to insulating flange 20 with lower connecting plate 19,
The side for the insulating flange 20 being connected with lower connecting plate 19 is equipped with terminal box.
As a preferred embodiment, the sensor fibre 4 and reception optical fiber 16 are elliptical-core dual-mode fiber, institute
The outside for stating elliptical-core dual-mode fiber is coated with 3-5 μm of Kapton, Kapton have antistatic, Inverter fed motor,
Feature resistant to high temperature, plays a protective role to elliptical-core dual-mode fiber, guarantees the stable delivery of signal.
As a preferred embodiment, the sensor fibre 4 and single-mode polarization maintaining fiber 7, reception optical fiber 16 and single mode
The section of the junction of polarization maintaining optical fibre 7 is mutually staggered 30 °.
In use, quartz-crystal scapus 5 is placed between the alternating voltage of 110KV, and under full voltage effect, sensor fibre 4
It is wrapped in the piezoelectricity deformation that alternation is perceived on quartz-crystal scapus 5, one end of sensor fibre 4 connects Low coherence multimode laser diode
6, Low coherence multimode laser diode 6 is used as system source, and the other end of sensor fibre 4 is connect by single-mode polarization maintaining fiber 7
Optical fiber 16 is received, reception optical fiber 16 is wound on the piezoelectric ceramics 10 of Piezoelectric Phase modulator, and defeated by Piezoelectric Phase modulator
For signal to phase tracker 17, phase tracker 17 transmits signals to controller 8 out, and the output end of controller 8 is divided into two-way,
Piezoelectric Phase modulator is fed back to all the way, and another way is the signal output end of optical fiber type voltage transformer, and phase tracker 17 is logical
Cross receive reception optical fiber 16 transmission two modes between phase difference and be input to controller 8 generate feedback control voltage, instead
Feedback control voltage acts on Piezoelectric Phase modulator, which is output signal.
When sensor fibre 4 needs replacing, by turning insulated bolt 21, by the first shell 1101 of epoxy insulation pipe 11
It is separated with second shell 1102, the sensor fibre 4 needed replacing is removed, then along optical fiber track 22 by new sensor fibre
4 install, by insulated bolt 21 that first shell 1101 and second shell 1102 is fixed after being installed, and then rotate epoxy
Insulation tube 11 and lower connecting plate 19 are fixed, and rotation upper junction plate 18 and epoxy insulation pipe 11 are fixed, to complete sensor fibre
Replacement.
The embodiment of the above, the only preferred embodiment of the utility model not limit the utility model
Practical range, therefore all equivalent change or modifications done according to structure, feature and principle described in the utility model patent range,
It should be included in present utility model application the scope of the patents.
Claims (8)
1. a kind of optical fiber type voltage transformer, including epoxy insulation pipe (11), be located at epoxy insulation pipe (11) if internal electrode,
Drystone English lens cylinder (5) and sensor fibre (4), which is characterized in that the electrode includes a high-field electrode (1), a low pressure
Electrode (2) and several connection electrodes (3), the quartz-crystal scapus (5) are set in qually spaced in the inside of epoxy insulation pipe (11), phase
Be provided with connection electrode (3) between two adjacent quartz-crystal scapus (5), the quartz-crystal scapus (5) and connection electrode (3) according to
Secondary to be cross-linked into series circuit, the quartz-crystal scapus (5) of the top connects high-field electrode (1), the lowermost quartz-crystal scapus
(5) low-field electrode (2) are connected, the high-field electrode (1) is equipped with high tension terminal (13), and low-field electrode (2) is connect by low pressure
Terminal (14) ground connection；
The outside of the quartz-crystal scapus (5) is equidistantly bonded with helical form optical fiber track (22), the optical fiber track (22)
Inside is wound with sensor fibre (4) with isostension, and one end of the sensor fibre (4) is connected by single-mode polarization maintaining fiber (7)
Have Low coherence multimode laser diode (6), the other end of sensor fibre (4) is connected with reception light by single-mode polarization maintaining fiber (7)
The piezoelectric ceramics (10) that fine (16) reception optical fibers (16) same to isostension, are wrapped in Piezoelectric Phase modulator at equal intervals
On, the input terminal of output end connection phase tracker (17) of the Piezoelectric Phase modulator, the phase tracker (17)
Output end connects the input terminal of controller (8), and the output end of the controller (8) is divided into two-way, wherein all the way with Piezoelectric Phase
Modulator is connected, voltage signal output end of the another way as optical fiber type voltage transformer；
The epoxy insulation pipe (11) includes first shell (1101) and second shell (1102), first shell (1101) and second
It is connected between shell (1102) by insulated bolt (21), is uniformly provided with several first glass on the outside of the first shell (1101)
Glass insulator (1201) is uniformly provided with several second glass insulators (1202), the epoxy on the outside of second shell (1102)
The upper and lower ends of insulation tube (11) are threaded with cricoid upper junction plate (18) and cricoid lower connecting plate (19) respectively, described
Upper junction plate (18) and lower connecting plate (19) are fixedly connected to insulating flange (20), the insulation method being connected with lower connecting plate (19)
The side of blue (20) is equipped with terminal box.
2. a kind of optical fiber type voltage transformer according to claim 1, which is characterized in that first glass insulator
(1201) cricoid glass insulator (12) is formed with the second glass insulator (1202).
3. a kind of optical fiber type voltage transformer according to claim 1, which is characterized in that the quartz-crystal scapus (5)
Quantity is 4.
4. a kind of optical fiber type voltage transformer according to claim 1, which is characterized in that the quartz-crystal scapus (5) is
Height be 100mm, the cylindrical body that section radius is 30mm, the epoxy insulation pipe (11) be internal diameter be 100mm, length is
The tube body of 700mm.
5. a kind of optical fiber type voltage transformer according to claim 1, which is characterized in that the optical fiber track (22) is to cut
Face is in the insulated channel of " recessed " shape.
6. a kind of optical fiber type voltage transformer according to claim 1, which is characterized in that the sensor fibre (4) with connect
Receiving optical fiber (16) is elliptical-core dual-mode fiber, and the outside of the elliptical-core dual-mode fiber is coated with 3-5 μm of Kapton.
7. a kind of optical fiber type voltage transformer according to claim 1, which is characterized in that the sensor fibre (4) and list
The section of the junction of mould polarization maintaining optical fibre (7), reception optical fiber (16) and single-mode polarization maintaining fiber (7) is mutually staggered 30 °.
8. a kind of optical fiber type voltage transformer according to claim 1, which is characterized in that the first shell (1101) with
Second shell (1102) is semicircle, and the end of first shell (1101) and second shell (1102) passes through mutually matched convex
Block is spliced into cricoid epoxy insulation pipe (11), is equipped with mutually on first shell (1101) and the convex block of second shell (1102)
Corresponding threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672850.6U CN208999476U (en) | 2018-10-16 | 2018-10-16 | A kind of optical fiber type voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672850.6U CN208999476U (en) | 2018-10-16 | 2018-10-16 | A kind of optical fiber type voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208999476U true CN208999476U (en) | 2019-06-18 |
Family
ID=66802811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821672850.6U Expired - Fee Related CN208999476U (en) | 2018-10-16 | 2018-10-16 | A kind of optical fiber type voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208999476U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596442A (en) * | 2019-08-12 | 2019-12-20 | 常州博瑞电力自动化设备有限公司 | Electronic voltage transformer |
| CN112684236A (en) * | 2020-12-02 | 2021-04-20 | 南方电网科学研究院有限责任公司 | Voltage transformer |
| CN113687508A (en) * | 2021-08-31 | 2021-11-23 | 华中科技大学 | Single-optical-fiber micro scanning device and driving system thereof |
| CN113702682A (en) * | 2021-10-09 | 2021-11-26 | 福州大学 | Non-electrical contact type remote transmission voltage transformer based on laser and working method thereof |
-
2018
- 2018-10-16 CN CN201821672850.6U patent/CN208999476U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596442A (en) * | 2019-08-12 | 2019-12-20 | 常州博瑞电力自动化设备有限公司 | Electronic voltage transformer |
| CN110596442B (en) * | 2019-08-12 | 2022-06-07 | 常州博瑞电力自动化设备有限公司 | Electronic voltage transformer |
| CN112684236A (en) * | 2020-12-02 | 2021-04-20 | 南方电网科学研究院有限责任公司 | Voltage transformer |
| CN113687508A (en) * | 2021-08-31 | 2021-11-23 | 华中科技大学 | Single-optical-fiber micro scanning device and driving system thereof |
| CN113702682A (en) * | 2021-10-09 | 2021-11-26 | 福州大学 | Non-electrical contact type remote transmission voltage transformer based on laser and working method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 |