CN109991463A - A kind of AC voltage sensor - Google Patents
A kind of AC voltage sensor Download PDFInfo
- Publication number
- CN109991463A CN109991463A CN201910316947.6A CN201910316947A CN109991463A CN 109991463 A CN109991463 A CN 109991463A CN 201910316947 A CN201910316947 A CN 201910316947A CN 109991463 A CN109991463 A CN 109991463A
- Authority
- CN
- China
- Prior art keywords
- dropping resistor
- divider resistance
- layer
- voltage sensor
- main dropping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 229920000260 silastic Polymers 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 3
- 229920002379 silicone rubber Polymers 0.000 description 11
- 230000015556 catabolic process Effects 0.000 description 4
- 230000006837 decompression Effects 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000009422 external insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
Abstract
The invention discloses a kind of AC voltage sensors, belong to intelligent power distribution equipment technical field, main dropping resistor and divider resistance are two groups of thick-film resistors of integrated customization, are disposed closely on same ceramic skeleton above and below main dropping resistor and divider resistance, form consistent low temperature and float resistance characteristic；Pressure processing is done in the high-pressure side of main dropping resistor, and the low-pressure side of divider resistance does bulk shielding processing；Shielding line is drawn downwards in divider resistance bottom；The side and bottom surface of main dropping resistor and divider resistance are disposed with silastic-layer from inside to outside and insulating medium layer carries out major insulation protection；Low pressure shielded layer is additionally provided with outside the lower half portion and bottom surface of insulating medium layer side；It is vertical with Primary Conductor transverse direction at the top of main dropping resistor to connect, and junction is provided with equal pressure cap.A kind of AC voltage sensor provided by the invention, AC voltage sensor and power switch are fused together, and provide guide and support for one or two integration technology development of power grid.
Description
Technical field
The invention belongs to intelligent power distribution equipment technical fields, and in particular to a kind of AC voltage sensor.
Background technique
The electromagnetic transformer used till today because of output power, be not easy to be disturbed, can directly drive electromagnetic type protection, meter
Measure device.But in recent years, all gauge tables, protective device all use electronic product.The electromagnetic transformer of acquisition is strong
Signal, which need to be converted to small analog signal, just can apply to digital circuit.Mean that a transducer signal source and secondary electron produce
Product mismatch, and electromagnetic transformer is because at high cost, volume is big, the high factor of operation troubles rate restricts the intelligentized technology of distribution
It promotes.Using small voltage signal transducer, comprehensive increase power sensor signal acquisition, be power sensor technological progress and
The inexorable trend of distribution intelligent construction.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of AC voltage sensors, by AC voltage sensor and electricity
Power switch is fused together, and provides guide and support for one or two integration technology development of power grid.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of AC voltage sensor, main dropping resistor are two groups of thick-film resistors of integrated customization, main decompression with divider resistance
Resistance and divider resistance are disposed closely on same ceramic skeleton up and down, are formed consistent low temperature and are floatd resistance characteristic；Main decompression electricity
Pressure processing is done in the high-pressure side of resistance, and the low-pressure side of divider resistance does bulk shielding processing；Shielding is drawn downwards in divider resistance bottom
Line；It is vertical with Primary Conductor transverse direction at the top of main dropping resistor to connect, and junction is provided with equal pressure cap.
Technical solution of the present invention further improvement lies in that: the side and bottom surface of main dropping resistor and divider resistance from it is interior to
It is disposed with silastic-layer outside and insulating medium layer carries out major insulation protection；The lower half portion and bottom surface of insulating medium layer side
It is additionally provided with low pressure shielded layer outside.
Technical solution of the present invention further improvement lies in that: shielding line is screened cable；Inner shield is earth-free, external shield
Reliable ground.
Technical solution of the present invention further improvement lies in that: main dropping resistor, divider resistance surface and equal pressure cap and silicon rubber
The equal insulation processing in interface at interface and insulating medium layer and silastic-layer between glue-line.
Technical solution of the present invention further improvement lies in that: the silicon rubber filled in silastic-layer is solid insulation silicon rubber
Material.
By adopting the above-described technical solution, the technological progress achieved by the present invention is:
AC voltage sensor provided by the invention, AC voltage sensor is vertical with an electrical body to be connect, and realizes integration
Design, minimizes the influence of electric field, magnetic field to resistance.
Voltage sensor provided by the invention, main divider resistance are designed as one using identical thick-film material with dropping resistor
It is whole.Main dropping resistor and divider resistance are disposed closely on same ceramic skeleton up and down, are formed consistent low temperature and are floatd resistance spy
Property and temperature drift coefficient is consistent, environment is identical, reducing temperature change influences the precision of secondary output.
Voltage sensor provided by the invention, between main dropping resistor, divider resistance and equal pressure cap surface and silastic-layer
Interface and the external insulation surface of insulating medium layer and low pressure shielded layer carry out interfacial insulator processing, form unique place
Resistive surface and control insulating materials and pouring technology are managed, new interface is never generated, prevents to generate higher office because dealing with improperly
It puts even inner surface and climbs electric forming breakdown.
The shielding line of voltage sensor provided by the invention, is transmitted using screened cable, and inner shield is earth-free, external shield
Reliable ground, signal transmission are constant using screened cable.Double shield purpose inner shield plays shielding action, and external shielding layer accepts system
Line residual current when system ground connection does not influence the transmission of small voltage signal in cable.
The silicon rubber filled in the silastic-layer of voltage sensor provided by the invention, using solid insulation silicon rubber material
Material.Using auto-vulcanization insulating process under vacuum, silicon rubber is consistent with dielectric dielectric constant, and silicon rubber has very by force
Adhesive so that new physical interface is not generated inside and outside silastic-layer；It is easily breakdown and resistance to thoroughly to solve resistive surface insulation
Voltage ageing problem.
Voltage sensor provided by the invention, stringent silastic-layer, the insulating materials such as insulating medium layer and low pressure shielded layer
The technical requirements such as electric property, pouring technology, drying time, cleanliness so that the partial discharge of voltage sensor as far as possible small.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of voltage sensor provided by the invention；
Wherein, 11, main dropping resistor, 12, divider resistance, 13, shielding line, 14, silastic-layer, 15, insulating medium layer, 16, low
Press shielded layer, 2, equal pressure cap, 3, Primary Conductor.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and embodiments:
As shown in the structural schematic diagram of the voltage sensor provided by the invention of attached drawing 1, a kind of AC voltage sensor, using resistance
Two groups of highly sensitive high-precision resistive elements are respectively adopted in decompression principle, phase voltage and residual voltage.
Specifically, main dropping resistor 11 is two groups of thick-film resistors of integrated customization, main dropping resistor with divider resistance 12
11 are disposed closely on same ceramic skeleton with about 12 divider resistance, form consistent low temperature and float resistance characteristic；I.e. main decompression
Resistance 11 is consistent with the temperature drift coefficient of divider resistance 12.Pressure processing is done in the high-pressure side of main dropping resistor 11, divider resistance 12
Low-pressure side does bulk shielding processing.Shielding line 13 is drawn downwards in 12 bottom of divider resistance.11 top of main dropping resistor with once lead
The laterally vertical connection of body 3, and junction is provided with equal pressure cap 2.
In embodiment provided by the invention, since there are resistance values and capacitance for signal-transmitting cable itself, influence small
Voltage signal transmission because being known as cable length, section, material etc., therefore cable length can generate the small signal of electric mutual inductor
Very big influence, cable length is constant, exports after the amendment of second compensation circuit constant.
Therefore the shielding line 13 of voltage sensor provided by the invention is screened cable；Inner shield is earth-free, and external shield can
By ground connection.Double shield purpose inner shield plays shielding action, and line residual current when external shielding layer accepts system earth does not influence cable
The transmission of interior small voltage signal.
The main dropping resistor 11 of voltage sensor provided by the invention and the side of divider resistance 12 and bottom surface are from inside to outside
It is disposed with silastic-layer 14 and insulating medium layer 15 carries out insulation protection；The lower half portion and bottom of 15 side of insulating medium layer
Low pressure shielded layer 16 is additionally provided with outside face.
Further, main dropping resistor 11, divider resistance 12 and the interface between 2 surface of pressure cap and silicon rubber side 14,
And insulating medium layer 15 and the external insulation surface of low pressure shielded layer 16 carry out interfacial insulator processing.
The silicon rubber filled in the silastic-layer 14 of voltage sensor provided by the invention is extraordinary solid insulation silicon rubber
Material is made using auto-vulcanization insulating process under vacuum, and the electrically insulating silicone rubber of special adhesive makes in silastic-layer 14
New physical interface is not permanently generated outside, can thoroughly solve the problems, such as the easy breakdown and resistance to voltage ageing of resistive surface insulation.
The insulating medium layer 15 of voltage sensor provided by the invention is using the insulating materials of high electrical property, and high pressure is over the ground
Stray capacitance it is small and constant, angular difference compensate loop stability.
Voltage sensor provided by the invention, silastic-layer 14, the insulation materials such as insulating medium layer 15 and low pressure shielded layer 16
Material has the technical indicators such as stringent insulation electrical performance, pouring technology, drying time, cleanliness, makes finished product partial discharge as far as possible
It is small.In embodiment provided by the invention, the partial discharge limit value of ac sensor is up to 10pC.
Voltage sensor provided by the invention is kept away in secondary output end by setting dedicated fast vacuum pipe ground connection in parallel
Exempt from divider resistance it is breakdown when high pressure scurry into minor loop, guarantee the safety of voltage sensor.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (5)
1. a kind of AC voltage sensor, it is characterised in that: main dropping resistor (11) is integrated customization with divider resistance (12)
Two groups of thick-film resistors, main dropping resistor (11) and divider resistance (12) are disposed closely on same ceramic skeleton up and down, are formed
Consistent low temperature floats resistance characteristic；Pressure processing is done in the high-pressure side of main dropping resistor (11), and the low-pressure side of divider resistance (12) is done
Bulk shielding processing；Shielding line (13) are drawn downwards in divider resistance (12) bottom；Main dropping resistor (11) top and Primary Conductor
(3) laterally vertical connection, and junction is provided with equal pressure cap (2).
2. a kind of AC voltage sensor according to claim 1, it is characterised in that: main dropping resistor (11) and partial pressure electricity
The side and bottom surface for hindering (12) are disposed with silastic-layer (14) from inside to outside and insulating medium layer (15) carries out major insulation guarantor
Shield；Low pressure shielded layer (16) are additionally provided with outside the lower half portion and bottom surface of insulating medium layer (15) side.
3. a kind of AC voltage sensor according to claim 1, it is characterised in that: shielding line (13) is double shield electricity
Cable；Inner shield is earth-free, external shield reliable ground.
4. a kind of AC voltage sensor according to claim 2, it is characterised in that: main dropping resistor (11), partial pressure electricity
Hinder (12) and interface and insulating medium layer (15) and silastic-layer (14) between pressure cap (2) surface and silastic-layer (14)
The equal insulation processing in interface.
5. a kind of AC voltage sensor according to claim 2, it is characterised in that: the silicon filled in silastic-layer (14)
Rubber is solid insulation silastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910316947.6A CN109991463A (en) | 2019-04-19 | 2019-04-19 | A kind of AC voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910316947.6A CN109991463A (en) | 2019-04-19 | 2019-04-19 | A kind of AC voltage sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109991463A true CN109991463A (en) | 2019-07-09 |
Family
ID=67134945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910316947.6A Pending CN109991463A (en) | 2019-04-19 | 2019-04-19 | A kind of AC voltage sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109991463A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050122122A1 (en) * | 2003-12-04 | 2005-06-09 | Fieldmetrics Inc. | Voltage sensor and dielectric material |
| CN101074972A (en) * | 2006-05-15 | 2007-11-21 | 北京瑞恒超高压电器研究所 | Capacitance mask resistance sensor |
| CN101256892A (en) * | 2007-12-29 | 2008-09-03 | 武汉格蓝若光电互感器有限公司 | Novel high voltage independent type electronic voltage mutual inductor |
| CN201259830Y (en) * | 2008-04-07 | 2009-06-17 | 袁国星 | Electronic voltage mutual inductor |
| CN201302592Y (en) * | 2008-07-15 | 2009-09-02 | 珠海威瀚科技发展有限公司 | Electrical energy measuring cabinet |
| CN201514849U (en) * | 2009-08-26 | 2010-06-23 | 安徽翔远电力科技有限公司 | Composite insulation compensation type electronic voltage transformer |
| CN102565486A (en) * | 2010-12-21 | 2012-07-11 | 珠海威瀚科技发展有限公司 | Resistance voltage divider |
| CN102830257A (en) * | 2012-08-01 | 2012-12-19 | 江苏博斯特科技电力有限公司 | High-voltage resistor type voltage dividing device |
| US20180292435A1 (en) * | 2015-05-18 | 2018-10-11 | 3M Innovative Properties Company | Voltage sensor |
| CN209894875U (en) * | 2019-04-19 | 2020-01-03 | 河北润志电气设备有限公司 | Alternating voltage sensor |
-
2019
- 2019-04-19 CN CN201910316947.6A patent/CN109991463A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050122122A1 (en) * | 2003-12-04 | 2005-06-09 | Fieldmetrics Inc. | Voltage sensor and dielectric material |
| CN101074972A (en) * | 2006-05-15 | 2007-11-21 | 北京瑞恒超高压电器研究所 | Capacitance mask resistance sensor |
| CN101256892A (en) * | 2007-12-29 | 2008-09-03 | 武汉格蓝若光电互感器有限公司 | Novel high voltage independent type electronic voltage mutual inductor |
| CN201259830Y (en) * | 2008-04-07 | 2009-06-17 | 袁国星 | Electronic voltage mutual inductor |
| CN201302592Y (en) * | 2008-07-15 | 2009-09-02 | 珠海威瀚科技发展有限公司 | Electrical energy measuring cabinet |
| CN201514849U (en) * | 2009-08-26 | 2010-06-23 | 安徽翔远电力科技有限公司 | Composite insulation compensation type electronic voltage transformer |
| CN102565486A (en) * | 2010-12-21 | 2012-07-11 | 珠海威瀚科技发展有限公司 | Resistance voltage divider |
| CN102830257A (en) * | 2012-08-01 | 2012-12-19 | 江苏博斯特科技电力有限公司 | High-voltage resistor type voltage dividing device |
| US20180292435A1 (en) * | 2015-05-18 | 2018-10-11 | 3M Innovative Properties Company | Voltage sensor |
| CN209894875U (en) * | 2019-04-19 | 2020-01-03 | 河北润志电气设备有限公司 | Alternating voltage sensor |
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