CN205229273U - Novel resistive current sensor of sample mode - Google Patents
Novel resistive current sensor of sample mode Download PDFInfo
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- CN205229273U CN205229273U CN201521005313.2U CN201521005313U CN205229273U CN 205229273 U CN205229273 U CN 205229273U CN 201521005313 U CN201521005313 U CN 201521005313U CN 205229273 U CN205229273 U CN 205229273U
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- voltage suppressor
- electric capacity
- valve block
- inductance
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- 238000005070 sampling Methods 0.000 claims abstract description 17
- 238000012806 monitoring device Methods 0.000 claims abstract description 12
- 230000001052 transient effect Effects 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 150000001879 copper Chemical class 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000000192 social effect Effects 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract 4
- 238000012544 monitoring process Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a current sampling technical field among the electric power system especially relates to the hindering nature current sampling sensor of a novel sample mode. It includes by the valve block, the inductance, and the rectifier bridge, CBB electric capacity, the interface unit is shown, transition voltage suppressor, secondary current interface unit, power resistor to machinery, the one end and the inductance of valve block are connected, and the other end is connected with the power resistor, and the inductance is connected with the rectifier bridge, rectifier bridge and CBB capacitance connection, and CBB electric capacity is connected with transition voltage suppressor, and transition voltage suppressor is connected with the power resistor, CBB electric capacity is shown the interface unit with machinery and is connected in parallel, and transition voltage suppressor is parallelly connected with the secondary current interface unit. The utility model discloses can ensure that monitoring devices is accurate, safe, move steadily, and can pass through body type test of arrester, satisfy 4 grades of standards of electromagnetic compatibility grade simultaneously, have great economic benefits and social effect.
Description
Technical field
The utility model relates to current sampling technical field in electric system, particularly relates to a kind of current in resistance property sampling detector of Novel sampling mode.
Background technology
In electric system, lightning arrester state monitoring apparatus is widely used.Traditional lightning arrester status monitoring mode adopts mechanical type reometer and count table to monitor lightning arrester running status, and data exist error and can not teletransmission.Later stage, domesticly there is electronic type lightning arrester on-Line Monitor Device successively, possesses data remote function, but it but can not replace traditional lightning arrester state monitoring apparatus completely, reason is that maintainer needs to utilize traditional count table to draw measurement point for site examining and repairing, and electronic type lightning arrester on-Line Monitor Device cannot draw measurement point, so two kinds of monitoring devices are mostly arranged on lightning arrester body by scene simultaneously, this just causes monitoring device complex structure, and installation and maintenance is loaded down with trivial details.
For the problems referred to above, a kind of current in resistance property sensor of Novel sampling mode arises at the historic moment, the current sampling method of mechanical type monitoring device and electronic type monitoring device unites two into one by it, both measurement point can be provided for maintainer, the intelligent demand of lightning arrester on-line monitoring can be met again, break the traditional structure that two kinds of monitoring devices are installed simultaneously, simplified installation and maintenance work, improve the accuracy of current measurement, security, stability.
Lightning arrester on-Line Monitor Device needs, when bearing the superpotential such as thunderbolt and impacting, still can to run accurately, safely and steadly, so the protection system of the current metering sensor of monitoring device and method are very crucial.A kind of current in resistance property sensor of Novel sampling mode is a kind of brand-new sampling method and thinking, the inner structure of its device is different from any a tradition or on-Line Monitor Device in the past, a set ofly be applicable to lightning arrester state monitoring apparatus so design, and the current sensor being applicable to its design feature is very necessary.
In sum, the utility model have studied a kind of current in resistance property sensor of Novel sampling mode, ensures that monitoring device accurately, safely and steadly runs.
Summary of the invention
For above-mentioned problems of the prior art, the utility model provides a kind of current in resistance property sensor of Novel sampling mode, comprehensively object improves the measurement accuracy of lightning arrester state monitoring apparatus, security, reliability, for the widespread use of lightning arrester state monitoring apparatus provides basic guarantee.
The purpose of this utility model is achieved through the following technical solutions:
A current in resistance property sensor for Novel sampling mode, comprises by valve block, inductance, rectifier bridge, CBB electric capacity, stem-winder interface unit, transient voltage suppressor, secondary current interface unit, power resistor; Wherein, one end of valve block is connected with inductance, and the other end is connected with power resistor, and inductance is connected with rectifier bridge, and rectifier bridge is connected with CBB electric capacity, and CBB electric capacity is connected with transient voltage suppressor, and transient voltage suppressor is connected with power resistor; Wherein, CBB electric capacity is in parallel with stem-winder interface unit, and transient voltage suppressor is in parallel with secondary current interface unit.
The mounting structure of described valve block is: by stacked up and down for two valve blocks, end face and underrun copper sheet short circuit, and this copper sheet is connected with crust of the device, crust of the device ground connection; Two valve block sandwich another one copper sheets, this copper sheet is connected with the leakage current input end of monitoring device.
The utility model tool has the following advantages and beneficial effect: the utility model is the design feature for lightning arrester state monitoring apparatus, the current in resistance property sensor of a kind of Novel sampling mode developed specially in conjunction with its design feature and applied environment, can ensure that monitoring device runs accurately, safely and steadly; And can the type approval test of lightning arrester one secondary body be passed through, meet electromagnetic compatibility class 4 grade standard simultaneously.The utility model application value is great, plays and ensures that lightning arrester state monitoring apparatus is accurate, the safe operation of safety, steady operation and even electrical network, have larger economic benefit and social effect.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model
In figure: valve block 1, inductance 2, rectifier bridge 3, CBB electric capacity 4, stem-winder interface unit 5, transient voltage suppressor 6, secondary current interface unit 7, power resistor 8.
Embodiment
The utility model is a kind of current in resistance property sensor of Novel sampling mode, and sensor can pass through lightning arrester type approval test, and can pass through electromagnetic compatibility class 4 grade standard.Be stem-winder interface and intelligent meter interface are united two into one, two kinds of tables are structurally series relationship, and the entirety after series connection and valve block are parallel relationship, and valve block has the function of pressure limiting, protection.When there being superpotential, valve block transient switching, big current of releasing; When not having superpotential, valve block is high-impedance state.
As shown in Figure 1, the utility model mainly comprises by valve block 1, inductance 2, rectifier bridge 3, CBB electric capacity 4, stem-winder interface unit 5, transient voltage suppressor 6, secondary current interface unit 7, power resistor 8.
Embodiment is as follows: one end of valve block 1 is connected with inductance 2, the other end is connected with power resistor 8, inductance 2 is connected with rectifier bridge 3, rectifier bridge 3 is connected with CBB electric capacity 4, CBB electric capacity 4 is connected with transient voltage suppressor 6, and transient voltage suppressor 6 is connected with power resistor 8, wherein, CBB electric capacity 4 is in parallel with stem-winder interface unit 5, and transient voltage suppressor 6 is in parallel with secondary current interface unit 7.
During lightning arrestor movement, great leakage current flows into arrester resistance current sensor, valve block 1 transient switching, the most leakage current play the effect of pressure limiting of releasing.
During lightning arrestor movement, small part leakage current can flow to stem-winder interface unit 5 and secondary current interface unit 7, this part leakage current first flows through inductance, after the current limliting of inductance, flow into rectifier bridge 3, leakage current after rectification flows into CBB electric capacity 4 and stem-winder interface unit 5, CBB electric capacity 4 and stem-winder interface unit 5 are parallel relationship, play Absorption Current, the effect of buffer mechanism table, afterwards, leakage current flows into transient voltage suppressor 6 and secondary current interface unit 7, transient voltage suppressor 6 and secondary current interface unit 7 are parallel relationship, play the effect of shunting pressure limiting, then electric current flows through power resistor, again further by current limliting, last leakage current flows out current in resistance property sensor.
Stem-winder interface unit 5 can provide general connecting interface for traditional mechanical type current indicator and mechanical type lightning arrestor movement number counter, makes current in resistance property sensor can carry out slitless connection with traditional type equipment.
The current transformer that secondary current interface unit 7 adopts high precision to customize, can not only provide the current measuring interface of high precision, low angular difference, is also that a secondary singal is isolated and provides the foundation to secondary device protection simultaneously.
The mounting structure of the utility model valve block is: by stacked up and down for two valve blocks, end face and underrun copper sheet short circuit, and this copper sheet is connected with crust of the device, crust of the device ground connection; Two valve block sandwich another one copper sheets, this copper sheet is connected with the leakage current input end of monitoring device.Such mounting structure had both achieved two valve block parallel connections, in turn saved device space, improve the safe distance between device internal components.
Valve block identical for two panels parallel connection is used, increases the relieving capacity of electric current with this, for forceful electric power side protection circuit provides powerful guarantee by lightning arrester type approval test.
As mentioned above, embodiment of the present utility model has been described in detail, but as long as do not depart from fact utility model of the present utility model point and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection domain of the present utility model.
Claims (2)
1. a current in resistance property sensor for Novel sampling mode, is characterized in that: comprise by valve block (1), inductance (2), rectifier bridge (3), CBB electric capacity (4), stem-winder interface unit (5), transient voltage suppressor (6), secondary current interface unit (7), power resistor (8); Wherein, one end of valve block (1) is connected with inductance (2), the other end is connected with power resistor (8), inductance (2) is connected with rectifier bridge (3), rectifier bridge (3) is connected with CBB electric capacity (4), CBB electric capacity (4) is connected with transient voltage suppressor (6), and transient voltage suppressor (6) is connected with power resistor (8); Wherein, CBB electric capacity (4) is in parallel with stem-winder interface unit (5), and transient voltage suppressor (6) is in parallel with secondary current interface unit (7).
2. the current in resistance property sensor of a kind of Novel sampling mode according to claim 1, it is characterized in that: the mounting structure of described valve block (1) is: by stacked up and down for two valve blocks, end face and underrun copper sheet short circuit, this copper sheet is connected with crust of the device, crust of the device ground connection; Two valve block sandwich another one copper sheets, this copper sheet is connected with the leakage current input end of monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521005313.2U CN205229273U (en) | 2015-11-30 | 2015-11-30 | Novel resistive current sensor of sample mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521005313.2U CN205229273U (en) | 2015-11-30 | 2015-11-30 | Novel resistive current sensor of sample mode |
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| Publication Number | Publication Date |
|---|---|
| CN205229273U true CN205229273U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521005313.2U Active CN205229273U (en) | 2015-11-30 | 2015-11-30 | Novel resistive current sensor of sample mode |
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| CN (1) | CN205229273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356807A (en) * | 2017-08-16 | 2017-11-17 | 国网辽宁省电力有限公司电力科学研究院 | Integrated arrester resistance current on-Line Monitor Device based on wireless synchronization technology |
-
2015
- 2015-11-30 CN CN201521005313.2U patent/CN205229273U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356807A (en) * | 2017-08-16 | 2017-11-17 | 国网辽宁省电力有限公司电力科学研究院 | Integrated arrester resistance current on-Line Monitor Device based on wireless synchronization technology |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |