CN206945763U - A kind of pointer position signals detection means of ammeter - Google Patents
A kind of pointer position signals detection means of ammeter Download PDFInfo
- Publication number
- CN206945763U CN206945763U CN201720476223.4U CN201720476223U CN206945763U CN 206945763 U CN206945763 U CN 206945763U CN 201720476223 U CN201720476223 U CN 201720476223U CN 206945763 U CN206945763 U CN 206945763U
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- ammeter
- light
- detection means
- pointer
- position signals
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 19
- 239000013307 optical fiber Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 230000011664 signaling Effects 0.000 claims abstract description 9
- 238000013473 artificial intelligence Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A kind of pointer position signals detection means of ammeter of the utility model refers to a kind of pointer position signals detection means based on the ammeter for installing light admitting aperture and the small catch of shading additional, affiliated technical field of relay protection.A kind of pointer position signals detection means of ammeter, install multiple light admitting apertures additional on the dial plate of ammeter, convex lens are housed on light admitting aperture, optical fiber is housed behind light admitting aperture, the light that convex lens are collected is passed in the optical fiber behind light admitting aperture, and the optical fiber other end is connected on optical signal conversion electric signaling device；Light tight frivolous small catch is installed additional in the pointer upper end of ammeter, and its weight does not interfere with the swing of ammeter pointer, a light source is installed outside leakage current of an arrester meter apparatus, is radiated on leakage current of an arrester table surface.Optical signal conversion electric signaling device is provided with the circuit that can convert optical signals to electric signal, and signal receiver is used as using photodiode light-sensitive element or photoelectric cell.
Description
Technical field
A kind of pointer position signals detection means of ammeter of the utility model refers to a kind of based on installation light-receiving
The pointer position signals detection means of the ammeter of hole and the small catch of shading, affiliated technical field of relay protection.
Background technology
Arrester ammeter is usual means in power system, the working condition of energy effective monitoring arrester.Work as high-voltage line
When voltage is carried on road, leakage current of an arrester table can detect Leakage Current, make throw of pointer.And do not have when on high-tension line
During voltage, leakage current of an arrester meter reading can be zeroed rapidly.Skilled operation power worker can reveal electricity by arrester
The pointer position of flow table judges to whether there is voltage on high-tension line, and as the important evidence of indirect method of checking electricity.Its advantage
It is sensitive convenient to be, can reflect faint curent change, sensitive and accurate when judging whether high-tension apparatus has voltage.And shortcoming exists
Judge in human eye can not be departed from, and can not be extracted so that relay protection uses.
The content of the invention
The purpose of the utility model is to provide a kind of pointer position signals detection means of ammeter for above-mentioned weak point,
It is a kind of pointer position signals detection means based on the ammeter for installing light admitting aperture and the small catch of shading additional, adds artificial intelligence
Ammeter, after the electric current in circuit is measured, in the case where no human assistance visually observes, mechanical signal is converted into telecommunications
Number, so that protection or automation equipment use.
A kind of pointer position signals detection means of ammeter is to take following technical scheme to realize：
A kind of pointer position signals detection means of ammeter, install multiple light admitting apertures additional on the dial plate of ammeter, it is more
Individual light admitting aperture is equipped with optical fiber, by convex lens positioned at convex lens are equipped with the side of range zero, light admitting aperture behind light admitting aperture
The light of collection is passed in the optical fiber behind light admitting aperture, and the optical fiber other end is connected on optical signal conversion electric signaling device.Light
Signal conversion electric signaling device can convert optical signals to the circuit of electric signal, with the light-sensitive elements such as photodiode or photo elements
Part is as signal receiver.
Light tight frivolous small catch is installed additional in the pointer upper end of ammeter, and its weight does not interfere with the pendulum of ammeter pointer
It is dynamic.A light source is installed outside leakage current of an arrester meter apparatus, is radiated on leakage current of an arrester table surface.
Operation principle：
When high-tension line has voltage, leakage current of an arrester list index moves to right, and optical fiber is shining into light admitting aperture, passes through optical fiber
Transmit to photoelectric conversion device.When high-tension line does not have voltage, the pointer of ammeter is flapped toward the side of left end zero, frivolous on pointer
Small catch shelters from the light admitting aperture on ammeter, and now optic fibre hole does not have optical transport, and the device of optical signal conversion electric signal is stood
Respond, relay protection is provided in time and used.
In addition to whether the light admitting aperture of the leftmost side has pressure detecting circuit, other several light admitting apertures can be according to screening
The priority time of light judges leakage current of an arrester list index translational speed.The signal to diminish rapidly as leakage current of an arrester
Used for protection device.In short time, there are two optical receivers to be not received by signal by order from right to left and can determine whether
Leakage Current reduces rapidly.
A kind of pointer position signals detection means of ammeter has the advantage that compared with prior art：
1. when under prosthetic environment, by the pointer position of ammeter, signal acquisition conversion photosignal optical signal turns
Change electric signal, when without optical signal transmission, give a warning.
2nd, the artificial intelligence that electric current transmission judges is realized after the improvement upgrading to ammeter.
3rd, signal transmission accurately and timely, is accomplished to hold the entirety of the powered situation of high-tension line.
4th, substation equipment Microcomputer level is improved.
5th, relative to light-sensitive element is directly installed additional on leakage current of an arrester table, this programme is transmitted using optical fiber, is taken
Small volume, does not influence the structure of arrester Leakage Current table, and reduces the decay of signal, improves accuracy.
Brief description of the drawings
Below with reference to accompanying drawing, the utility model is described in further detail：
Fig. 1 is a kind of pointer position signals structure of the detecting device schematic diagram of ammeter.
Fig. 2 is a kind of optical signal conversion electric signaling device schematic diagram of the pointer position signals detection means of ammeter.
Embodiment
Referring to the drawings 1,2, a kind of pointer position signals detection means of ammeter, installed additional on the dial plate 1 of ammeter more
Individual light admitting aperture 2, multiple light admitting apertures 2 are located at is equipped with convex lens 3 on the side of range zero, light admitting aperture 2, after light admitting aperture 2
Face is equipped with optical fiber 6, and the light that convex lens 3 are collected is passed in the optical fiber 6 behind light admitting aperture, and the other end of optical fiber 6 is connected to light
On signal conversion electric signaling device.Optical signal conversion electric signaling device is provided with the circuit that can convert optical signals to electric signal, with
The light-sensitive elements such as photodiode or photoelectric cell are as signal receiver.
Light tight frivolous small catch 5 is installed additional in the upper end of pointer 4 of ammeter, and its weight does not interfere with ammeter pointer 4
Swing.A light source is installed outside leakage current of an arrester meter apparatus, is radiated on leakage current of an arrester table surface.
In use, when high-tension line has voltage, arrester leaks a kind of pointer position signals detection means of ammeter
Ammeter pointer 4 moves to right, and light is shining into light admitting aperture 2, is transmitted by optical fiber 6 to photoelectric conversion device.When high-tension line does not have
During voltage, the pointer 4 of ammeter is flapped toward the side of left end zero, and the frivolous small catch 5 on pointer shelters from the light admitting aperture on ammeter
2, now light admitting aperture 2 there is no an optical transport, the device of optical signal conversion electric signal responds immediately, provides relay protection in time
Use.
In addition to whether the light admitting aperture 2 of the leftmost side has pressure detecting circuit, other several light admitting apertures can basis
The priority time of shading judges the translational speed of pointer 4 of leakage current of an arrester table.Diminish rapidly as leakage current of an arrester
Signal for protection device use.In short time, there are two optical receivers to be not received by signal i.e. by order from right to left
It can determine whether that Leakage Current reduces rapidly.
Claims (3)
- A kind of 1. pointer position signals detection means of ammeter, it is characterised in that：Install multiple light additional on the dial plate of ammeter Receiver hole, convex lens are housed on light admitting aperture, optical fiber is housed behind light admitting aperture, the light incoming light that convex lens are collected is connect In optical fiber behind batter, the optical fiber other end is connected on optical signal conversion electric signaling device；Light tight frivolous small catch is installed additional in the pointer upper end of ammeter, its weight does not interfere with the swing of ammeter pointer, A light source is installed outside leakage current of an arrester meter apparatus, is radiated on leakage current of an arrester table surface.
- A kind of 2. pointer position signals detection means of ammeter according to claim 1, it is characterised in that：Multiple light connect Batter is located in the side of range zero.
- A kind of 3. pointer position signals detection means of ammeter according to claim 1, it is characterised in that：Optical signal turns Change electric signaling device and be provided with the circuit that can convert optical signals to electric signal, made with photodiode light-sensitive element or photoelectric cell For signal receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720476223.4U CN206945763U (en) | 2017-05-02 | 2017-05-02 | A kind of pointer position signals detection means of ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720476223.4U CN206945763U (en) | 2017-05-02 | 2017-05-02 | A kind of pointer position signals detection means of ammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945763U true CN206945763U (en) | 2018-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720476223.4U Active CN206945763U (en) | 2017-05-02 | 2017-05-02 | A kind of pointer position signals detection means of ammeter |
Country Status (1)
| Country | Link |
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| CN (1) | CN206945763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445665A (en) * | 2020-04-20 | 2020-07-24 | 国网山东省电力公司滨州市沾化区供电公司 | Electric measuring instrument anti-electric shock alarm device |
-
2017
- 2017-05-02 CN CN201720476223.4U patent/CN206945763U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445665A (en) * | 2020-04-20 | 2020-07-24 | 国网山东省电力公司滨州市沾化区供电公司 | Electric measuring instrument anti-electric shock alarm device |
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