CN104297712A - Gage and source integrated device for anti-interference digital high-voltage gage calibration - Google Patents
Gage and source integrated device for anti-interference digital high-voltage gage calibration Download PDFInfo
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- CN104297712A CN104297712A CN201410601333.XA CN201410601333A CN104297712A CN 104297712 A CN104297712 A CN 104297712A CN 201410601333 A CN201410601333 A CN 201410601333A CN 104297712 A CN104297712 A CN 104297712A
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- 238000004804 winding Methods 0.000 claims description 82
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 230000004888 barrier function Effects 0.000 claims description 17
- 239000011889 copper foil Substances 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 230000002459 sustained effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229910000889 permalloy Inorganic materials 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 2
- 239000000696 magnetic material Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- Regulation Of General Use Transformers (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a gage and source integrated device for anti-interference digital high-voltage gage calibration. The device is characterized by comprising a shell, a voltage regulator, a voltage booster and an anti-electromagnetic interference device located between the voltage regulator and the voltage booster, wherein the voltage regulator, the voltage booster and the anti-electromagnetic interference device are arranged in the shell; a high-voltage terminal is arranged on the top of the shell; the anti-electromagnetic interference device comprises an electric shielding device and a magnetic shielding device. The device has the advantages that a boosting power source and the voltage regulator are integrated, primary leads are connected inside, primary ground wires are connected inside, the gage and source integrated device is formed, the electromagnetic shielding means is adopted, the voltage regulator in the integrated device is shielded, and the electromagnetic interference on the voltage regulator from the boosting power source is reduced. A high permeability magnetic material is added between the booster and the voltage regulator to serve as a magnetic shielding device, magnetic field interference does not exist in the rated capacity range of the booster, and the errors of standard voltage transformers are consistent.
Description
Technical field
The present invention relates to the resource integrated device of a kind of anti-interference digital high voltage table calibration table, belong to voltage measurement technologies field.
Background technology
The resource integrated device of digital high voltage table calibration table is that booster power and standard potential transformer are united two into one, integrated as a whole, decreases number of devices and wiring during use, easy to use.At present, the error checking of 50kV and following digital high voltage table thereof, all adopts the calibration of digital high voltage table to show resource integrated device substantially, so the consumption of the resource integrated device of digital high voltage table calibration table is very large.
But the resource integrated device of the table of digital high voltage table calibration at present also exists again some problems, from our laboratory to the calibrating data of the resource integrated device of digital high pressure gauge calibration table, show as following two kinds of situations: one is that the booster power of the resource integrated device of digital high voltage table calibration table being used as standard is to do the booster power of checking system, often can encounter the situation that the error information of tested digital high voltage table is overproof, if but use the booster power of testing laboratory itself instead, data again can be qualified; Two is use the mutual inductor of the resource integrated device of digital high voltage table calibration table as tested mutual inductor, the booster power of resource integrated device is shown as power supply with the calibration of digital high voltage table, adopt the standard potential transformer of one pole as standard, the mutual inductor data qualifier of the tested resource integrated device of digital high voltage table calibration table, but use bipolar standard potential transformer instead as standard, the mutual inductor data of the tested resource integrated device of digital high voltage table calibration table are overproof again.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide the resource integrated device of a kind of anti-interference digital high voltage table calibration table, can effectively avoid
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Resource integrated device is shown in a kind of anti-interference digital high voltage table calibration, it is characterized in that, comprises shell, is all arranged on voltage standard device, stepup transformer and the electromagnetic interference resistant device between described voltage standard device and stepup transformer in described shell; The top of described housing is provided with HV Terminal; Described electromagnetic interference resistant device comprises electrical barrier devices and magnetic shielding device; Described stepup transformer comprises the first coil, be positioned at the first iron core, electrical barrier devices and stepup transformer winding terminal below described first coil; Described stepup transformer winding terminal comprises two low pressure winding input ends and two high pressure winding terminals; Described low pressure winding input end is all drawn by connection terminal; Described voltage standard device comprises the second coil, be positioned at the second iron core, electrical barrier devices and voltage standard device winding terminal below described second coil; Described voltage standard device winding terminal comprises two winding terminals and two Secondary Winding output terminals; Described Secondary Winding output terminal is all drawn by connection terminal; Described electromagnetic interference resistant device comprises electrical barrier devices and magnetic shielding device; Described electrical barrier devices is provided with two, is connected respectively with described first coil with the second coil; Two described electrical barrier devices are provided with Copper Foil; Described Copper Foil is connected with last circle of the second coil with the first coil respectively; The width of described Copper Foil respectively with the first coil and the second coil wide; Described magnetic shielding device is bent into a curved surface, partly wraps described voltage standard device winding terminal; The width of described magnetic shielding device is greater than the width of voltage standard device winding terminal.
The resource integrated device of aforesaid one anti-interference digital high voltage table calibration table, it is characterized in that, described first coil and the second coil are positioned at sustained height in housing; Described first iron core and the second iron core are positioned at sustained height in housing.
The resource integrated device of aforesaid one anti-interference digital high voltage table calibration table, it is characterized in that, described high pressure winding terminal comprises the first high pressure winding terminal and the second high pressure winding terminal; A described winding terminal comprises the first winding terminals and the second winding terminals.
The resource integrated device of aforesaid one anti-interference digital high voltage table calibration table, is characterized in that, described the first winding terminals and the second winding terminals are connected in parallel in described housing; Described first high pressure winding terminal is connected HV Terminal with after the first winding terminal short circuits by a sleeve pipe; Described second high pressure winding terminal and the second winding terminals after short circuit by connection terminal ground connection.
The resource integrated device of aforesaid one anti-interference digital high voltage table calibration table, it is characterized in that, described magnetic shielding device adopts permalloy material.
The resource integrated device of aforesaid one anti-interference digital high voltage table calibration table, is characterized in that, one group of opposite of described shell is respectively arranged with outwardly convex part.
The beneficial effect that the present invention reaches: booster power and voltage standard device are made an entirety, it once goes between and to link together in inside, one time ground wire also links together in inside, form the resource integrated device of table, and adopt electromagnetic screen means, voltage standard device shielding in integrated apparatus is got up, reduces booster power to the electromagnetic interference (EMI) of voltage standard device.High permeability material is added as magnetic shield apparatus between stepup transformer and voltage standard device, adopt the measure of magnetic shielding, mask the magnetic field that stepup transformer primary current produces, like this, within the scope of stepup transformer rated capacity, regardless of the impedance being calibrated digital high voltage table, there is no magnetic interference, the error of standard potential transformer is consistent, can ensure the error accuracy of 0.2 grade and 0.1 grade pin-point accuracy ac digital high pressure gauge calibration.
Accompanying drawing explanation
Fig. 1 is vertical section structure schematic diagram of the present invention;
Fig. 2 is cross-sectional structure schematic diagram of the present invention;
Fig. 3 is right view of the present invention;
Fig. 4 is left view of the present invention;
Fig. 5 is circuit theory diagrams of the present invention.
The implication of Reference numeral in figure:
1-HV Terminal, 2-shell, 3-first coil, 4-second coil, 5-first iron core, 6-second iron core, 7,12-ground terminal, 8,9,10,11-connection terminal, 13-stack of lamination shell, 14-Copper Foil, 15-magnetic shielding device.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The resource integrated device of current digital high voltage table calibration table also exists again some problems, from our laboratory to the calibrating data of the resource integrated device of digital high pressure gauge calibration table, show as following two kinds of situations: one is that the booster power of the resource integrated device of digital high voltage table calibration table being used as standard is to do the booster power of checking system, often can encounter the situation that the error information of tested digital high voltage table is overproof, if but use the booster power of testing laboratory itself instead, data again can be qualified; Two is use the mutual inductor of the resource integrated device of digital high voltage table calibration table as tested mutual inductor, the booster power of resource integrated device is shown as power supply with the calibration of digital high voltage table, adopt the standard potential transformer of one pole as standard, the mutual inductor data qualifier of the tested resource integrated device of digital high voltage table calibration table, but use bipolar standard potential transformer instead as standard, the mutual inductor data of the tested resource integrated device of digital high voltage table calibration table are overproof again.
Comprehensive both of these case, we think the stepup transformer of the resource integrated device of digital high voltage table calibration table with load different, the resource integrated device Plays voltage transformer (VT) test data of digital high voltage table calibration table is just not identical, proves that the size of stepup transformer primary current in the resource integrated device of digital high voltage table calibration table of this structure and character exist electromagnetic effect to voltage standard device.Through experimental study, the booster power of booster power as test macro of resource integrated device is shown in the calibration of discovery digital high voltage table, add different capacity and the load of character in a test system, the voltage transformer (VT) data of the tested resource integrated device of digital high voltage table calibration table are really different, use the outer booster power executed instead, in the scope that booster power can bear, inside test macro, no matter add the load of what capacity of what character, data are the same.The size of current and the voltage standard device of phase place on the inside that demonstrate a digital high voltage table calibration table resource integrated device stepup transformer winding have impact.
Be directed to this, design the resource integrated device of a kind of anti-interference digital high voltage table calibration table, comprise shell 2 and be positioned at the voltage standard device of shell 2, stepup transformer and electromagnetic interference resistant device.Three is cast in an integrated entirety in housing, forms the resource integrated device of anti-interference digital high voltage table calibration table.Electromagnetic interference resistant device is between voltage standard device and stepup transformer.The top of housing is provided with HV Terminal 1.
As Fig. 1, stepup transformer comprises the first coil 3, first iron core 5, electrical barrier devices and stepup transformer winding terminal.First iron core 5 is positioned at below the first coil 3.Stepup transformer winding terminal comprises two low pressure winding input end a1, x1 and two high pressure winding terminals.High pressure winding terminal comprises the first high pressure winding terminal A1 and the second high pressure winding terminal X1.Low pressure winding input end a1, x1 draw respectively by connection terminal 8,9.
As Fig. 2 and 3, voltage standard device comprises the second coil 4, second iron core 6, electrical barrier devices and voltage standard device winding terminal.Second iron core 6 is positioned at below the second coil 4.Voltage standard device winding terminal comprises two winding terminals and two Secondary Winding output terminals a2, x2.Winding terminal comprises the first winding terminal A2 and the second one time winding terminal X2.Secondary Winding output terminal a2, x2 draw respectively by connection terminal 10,11.
Inner at shell 2, the first coil 3 and the second coil 4 are positioned at sustained height, and the first iron core 5 and the second iron core 6 are positioned at sustained height.
The first winding terminal A2 and the second one time winding terminal X2 is connected in parallel in housing, first high pressure winding terminal A1 is connected HV Terminal 11 with after the first winding terminal A2 short circuits by a sleeve pipe, the second high pressure winding terminal X1 and the second one time winding terminal X2 after short circuit by connection terminal 12 ground connection.When stepup transformer input 0 ~ 200V voltage, through stepup transformer boosting, obtain the high pressure of a 0 ~ ratings in stepup transformer high pressure winding side, provide power supply to voltage standard device, define from the integrated calibration equipment of boosting.
As Fig. 4, electromagnetic interference resistant device comprises electrical barrier devices and magnetic shielding device 15.Electrical barrier devices is provided with two, is connected respectively with the first coil 3 with the second coil 4.Two electrical barrier devices are provided with Copper Foil 14.Copper Foil 14 is connected with the first coil 3 last circle with the second coil 4 respectively.The width of Copper Foil 14 respectively with the first coil 3 and the second coil 4 wide.So just utilizing Copper Foil 14 that whole coil is wrapped makes coil winding be electrically shielded, and improves Electric Field Distribution, improves insulating capacity, avoid the interference of electric field.
Magnetic shielding device 15 is bent into a curved surface, partly wraps voltage standard device winding terminal.The width of magnetic shielding device 15 is greater than the width of voltage standard device winding terminal.If there is the magnetic line of force to pass this magnetic shielding device 15, this magnetic line of force will by this shield assembly bypass, so just can make voltage standard device hardly by the influence of magnetic field that stepup transformer produces, make the error precision of voltage standard device no longer by stepup transformer institute on-load capacity impact.
Magnetic shielding device 15 adopts permalloy material.
One group of opposite of shell 2 is respectively arranged with outwardly convex part, and namely facilitate putting on shank, additionally reduce the volume and weight of equipment, convex design facilitates onsite moving again.
The resource integrated device of this anti-interference digital high voltage table calibration table that the present invention relates to, booster power and voltage standard device have been made an entirety, it once goes between and to link together in inside, one time ground wire also links together in inside, form the resource integrated device of table, and adopt electromagnetic screen means, the voltage standard device shielding in integrated apparatus is got up, reduces booster power to the electromagnetic interference (EMI) of voltage standard device.The voltage standard device adopted, adopts high-accuracy voltage mutual inductor, and by once forming around, Secondary Winding and iron core, a winding voltage is system nominal voltage, and Secondary Winding voltage is 100V, and its accuracy can reach 0.01 grade.The stepup transformer adopted is testing transformer, is also made up of winding, Secondary Winding and an iron core, and one time winding voltage is identical with standard rated voltage, and Secondary Winding voltage is 0-200V.Stepup transformer and standard are once in parallel, with stepup transformer boosting, for the tested digital high voltage table boosting in standard and check system provides power supply, standard provides normal voltage for check system, form the resource integrated calibration equipment of table, facilitate digital high voltage table to calibrate and use.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. the resource integrated device of anti-interference digital high voltage table calibration table, is characterized in that, comprises shell, is all arranged on voltage standard device, stepup transformer and the electromagnetic interference resistant device between described voltage standard device and stepup transformer in described shell; The top of described housing is provided with HV Terminal; Described electromagnetic interference resistant device comprises electrical barrier devices and magnetic shielding device;
Described stepup transformer comprises the first coil, be positioned at the first iron core, electrical barrier devices and stepup transformer winding terminal below described first coil; Described stepup transformer winding terminal comprises two low pressure winding input ends and two high pressure winding terminals; Described low pressure winding input end is all drawn by connection terminal;
Described voltage standard device comprises the second coil, be positioned at the second iron core, electrical barrier devices and voltage standard device winding terminal below described second coil; Described voltage standard device winding terminal comprises two winding terminals and two Secondary Winding output terminals; Described Secondary Winding output terminal is all drawn by connection terminal;
Described electromagnetic interference resistant device comprises electrical barrier devices and magnetic shielding device; Described electrical barrier devices is provided with two, is connected respectively with described first coil with the second coil; Two described electrical barrier devices are provided with Copper Foil; Described Copper Foil is connected with last circle of the second coil with the first coil respectively; The width of described Copper Foil respectively with the first coil and the second coil wide; Described magnetic shielding device is bent into a curved surface, partly wraps described voltage standard device winding terminal; The width of described magnetic shielding device is greater than the width of voltage standard device winding terminal.
2. the resource integrated device of one according to claim 1 anti-interference digital high voltage table calibration table, it is characterized in that, described first coil and the second coil are positioned at sustained height in housing; Described first iron core and the second iron core are positioned at sustained height in housing.
3. the resource integrated device of one according to claim 1 anti-interference digital high voltage table calibration table, it is characterized in that, described high pressure winding terminal comprises the first high pressure winding terminal and the second high pressure winding terminal; A described winding terminal comprises the first winding terminals and the second winding terminals.
4. the resource integrated device of one according to claim 3 anti-interference digital high voltage table calibration table, is characterized in that, described the first winding terminals and the second winding terminals are connected in parallel in described housing; Described first high pressure winding terminal is connected HV Terminal with after the first winding terminal short circuits by a sleeve pipe; Described second high pressure winding terminal and the second winding terminals after short circuit by connection terminal ground connection.
5. the resource integrated device of one according to claim 1 anti-interference digital high voltage table calibration table, is characterized in that, described magnetic shielding device adopts permalloy material.
6. the resource integrated device of one according to claim 1 anti-interference digital high voltage table calibration table, is characterized in that, one group of opposite of described shell is respectively arranged with outwardly convex part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601333.XA CN104297712B (en) | 2014-10-31 | 2014-10-31 | A kind of anti-interference digital high voltage table calibration resource integrated device of table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601333.XA CN104297712B (en) | 2014-10-31 | 2014-10-31 | A kind of anti-interference digital high voltage table calibration resource integrated device of table |
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| CN104297712A true CN104297712A (en) | 2015-01-21 |
| CN104297712B CN104297712B (en) | 2017-10-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192974A (en) * | 2017-07-19 | 2017-09-22 | 云南电网有限责任公司电力科学研究院 | Integration voltage current standard transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192974A (en) * | 2017-07-19 | 2017-09-22 | 云南电网有限责任公司电力科学研究院 | Integration voltage current standard transformer |
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| CN104297712B (en) | 2017-10-24 |
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Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Co-patentee after: Jiangsu Fangtian Power Technology Co., Ltd. Co-patentee after: Wuhan pan electric Polytron Technologies Inc Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee before: Jiangsu Electric Power Company Patentee before: State Grid Corporation of China Co-patentee before: Jiangsu Fangtian Power Technology Co., Ltd. Co-patentee before: Wuhan Pandian Technology Co., Ltd. |