CN104155624B - A kind of boosting calibration equipment tested for industrial frequency resonance - Google Patents
A kind of boosting calibration equipment tested for industrial frequency resonance Download PDFInfo
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- CN104155624B CN104155624B CN201410370276.9A CN201410370276A CN104155624B CN 104155624 B CN104155624 B CN 104155624B CN 201410370276 A CN201410370276 A CN 201410370276A CN 104155624 B CN104155624 B CN 104155624B
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- 238000005070 sampling Methods 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 12
- 241000580063 Ipomopsis rubra Species 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
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- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention discloses a kind of boosting calibration equipment tested for industrial frequency resonance, including power frequency supply, the output end of the power frequency supply is connected with the primary side of exciting transformer, it is characterized in that, the power frequency supply also includes tester and can gather the first sampling unit of electric current and voltage, second sampling unit, the secondary of the exciting transformer sequentially with REgulatable reactor, compensating electric capacity is connected, the earth terminal of the compensating electric capacity is connected with the first sampling unit, the earth terminal of the secondary of the exciting transformer is connected with the second sampling unit, the compensating electric capacity two ends are parallel with voltage transformer in standard potential transformer and GIS transformer stations respectively, voltage transformer is connected with tester respectively in standard potential transformer and the GIS transformer station, voltage transformer is connected with voltage transformer Burden box in the GIS transformer stations.It is convenient regulation, simple to operate, meet onsite moving, the requirement of experiment.
Description
Technical field
The present invention relates to a kind of boosting calibration equipment tested for industrial frequency resonance, belong to the technology neck of transducer check
Domain.
Background technology
The GIS transformer stations in long-distance cable inlet-outlet line city（Gas insulated transformer substation）Voltage transformer（Electric capacity
Formula voltage transformer）When being verified, it is impossible to completely that voltage transformer is independent, certain space-number is taken（Interval
It is GIS structural terms, typically loads the equipment in GIS in interval, complete GIS is constituted by multiple intervals）With certain length
Cable bus is passed in and out, thus there is certain direct-to-ground capacitance.Due to the presence of GIS intervals and turnover cable, just deposited in boosting
In capacitance current, and cable incoming-outgoing cross-sectional area specification is different, length differs and wiring arrangement is unified not to the utmost, causes
The uncertainty of GIS transformer substation voltages transformer capacitance in city.
Because capacitance is uncertain, field test frequency must be carried out under conditions of 50Hz, while live geographical conditions
Complexity, traditional experimental provision because transformer capacity is big, live power taking is difficult, also because volume is big, take up an area wide, scene can not
Realize and place, be difficult to meet onsite moving, the requirement of experiment.Variable-frequency series-resonance can enter to GIS and cable class test product
Row AC boosting, operation is also uncomplicated, but the verification of voltage transformer must be carried out under 50Hz power frequency, so frequency conversion is humorous
Shaking can not be as its booster power.
In addition, tested using traditional Regulation Control case as industrial frequency resonance control power supply when, resonance often occurs
High pressure is very smooth in front half section, and can be sharply increased to resonance potential after a certain magnitude of voltage, and we term it resonance for this phenomenon
Voltage skyrockets.Appearance voltage, which skyrockets, tends to exceed system real work voltage, may puncture test product or equipment, is suitable danger
Danger, whether traditional power frequency Regulation Control case, because can not gather resonance high-voltage and be analyzed, is that will not prejudge
Such case can occur, there is potential safety hazard.
The content of the invention
Regarding to the issue above, the present invention provides a kind of boosting calibration equipment tested for industrial frequency resonance, convenient regulation, behaviour
Make simple, meet onsite moving, the requirement of experiment.Further, power frequency supply can gather the size and phase of test voltage, electric current
Potential difference, is easy to judge whether resonance can reach magnitude of voltage needed for experiment, and whether resonant process, which voltage occurs, skyrockets situation.
To realize above-mentioned technical purpose, above-mentioned technique effect is reached, the present invention is achieved through the following technical solutions：
A kind of boosting calibration equipment tested for industrial frequency resonance, including power frequency supply, the output end of the power frequency supply
It is connected with the primary side of exciting transformer, it is characterised in that the power frequency supply also includes tester and can gather electric current and electricity
First sampling unit of pressure, the second sampling unit, the secondary of the exciting transformer sequentially with REgulatable reactor, compensating electric capacity phase
Even, the earth terminal of the compensating electric capacity is connected with the first sampling unit, the earth terminal of the secondary of the exciting transformer and second
Sampling unit is connected, and the compensating electric capacity two ends are parallel with voltage transformer in standard potential transformer and GIS transformer stations respectively,
Voltage transformer is connected with tester respectively in standard potential transformer and the GIS transformer station, voltage in the GIS transformer stations
Transformer is connected with voltage transformer Burden box.
Wherein, exciting transformer plays isolation boosting effect, and REgulatable reactor, high pressure compensation electric capacity formation series relationship rise
To resonance step-up effect, capicitive sample is that voltage transformer is connected in parallel on resonance circuit with standard potential transformer in GIS transformer stations
In, boosted in the range of the 20 ~ 120% of rated voltage.Due to inductance value and system often occurring in series resonance system
The problem of capacity is bad, does not reach optimum resonance point under power frequency, so when the power supply of output reaches 250V maximum
During output, system can not be boosted to load voltage value, therefore, it can make system by adjusting the inductance value of REgulatable reactor
The resonance under power frequency.Power frequency supply not only possesses boosting, control action, but also can gather signal, can be tested by measuring
Voltage, the size of electric current and phase difference, are easy to judge whether resonance can reach magnitude of voltage needed for experiment, whether resonant process occurs
Voltage skyrockets situation.
Power frequency supply is combined into one with tester, between collection subject voltage transformer and standard potential transformer
Differential pressure signal and the dial gauge signal for being tested transformer, the ratio difference and phase difference of readily available subject voltage transformer are easy to
Judge whether subject voltage transformer exceedes《JJG314-2010 measurement voltage transformers》The error limit of vertification regulation.It is whole
Individual system fading margin is convenient, simple to operate, meets onsite moving, the requirement of experiment.
The beneficial effects of the invention are as follows：A kind of boosting calibration equipment tested for industrial frequency resonance, convenient regulation, operation letter
It is single, meet onsite moving, the requirement of experiment.Further, power frequency supply can gather the size and phase of test voltage, electric current
Difference, is easy to judge whether resonance can reach magnitude of voltage needed for experiment, and whether resonant process, which voltage occurs, skyrockets situation.
Brief description of the drawings
Fig. 1 is a kind of structural representation for the boosting calibration equipment tested for industrial frequency resonance of the present invention；
The mark implication of accompanying drawing is as follows：
1：Power frequency supply, tester measurement all-in-one；2：Tester binding post；3：Exciting transformer；4：First sampling
Unit；5：Second sampling unit；6：REgulatable reactor；7：Iron core；8：Dielectric；9：Cylindrical coil；10：Compensating electric capacity；
11：Voltage transformer in GIS transformer stations；12：Standard potential transformer；13：Long cable section of ingoing line end；14：Voltage transformer Burden box；
15：Grading ring.
Embodiment
Technical solution of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that ability
The technical staff in domain can be better understood from the present invention and can be practiced, but illustrated embodiment is not as the limit to the present invention
It is fixed.
As shown in figure 1, a kind of boosting calibration equipment tested for industrial frequency resonance, including power frequency supply, the power frequency electric
Source also includes tester, for the ease of embodying the integration of power frequency supply and tester, by the rectangle frame representated by 1 in Fig. 1
It is named as power frequency supply, tester measurement all-in-one 1.The boosting calibration equipment of traditional industrial frequency resonance experiment, its power supply and school
Instrument is tested respectively as independent equipment, it is impossible to judge whether resonance can boost to required ceiling voltage at 50 hz, can not
Prejudge whether resonant process occurs the phenomenon that voltage skyrockets, power supply is merely responsible for the output of voltage, it is impossible to detection feedback
High pressure, can not also carry out effective intervention to boost process, tester is then only only as the collection of differential pressure signal, voltage percentage
The measuring terminals of ratio, passive receives these data, and power frequency supply, institute can not be fed back to when percentage voltage exceedes specified
It is high, experienced with test requirements document operating personnel's professional skill.Power frequency supply is combined with tester, is easy to believe therebetween
The interaction of breath and work compound, whole system are easy to adjust, simple to operate, meet onsite moving, the requirement of experiment.
Power frequency supply, tester measurement all-in-one 1 also include that the first sampling unit 4, second of electric current and voltage can be gathered
Sampling unit 5, the output end of power frequency supply is connected with the primary side of exciting transformer 3, the secondary of the exciting transformer 3 sequentially with
REgulatable reactor 6, compensating electric capacity 10 are connected.In figure, compensating electric capacity 10 is also set at the one end being connected with REgulatable reactor 6 i.e. top
Grading ring 15 is equipped with, the earth terminal of compensating electric capacity 10 is that bottom is connected with the first sampling unit 4.
The earth terminal of the secondary of the exciting transformer 3 is connected with the second sampling unit 5, the two ends of compensating electric capacity 10 point
Voltage transformer 11 in standard potential transformer 12 and GIS transformer stations is not parallel with, and the standard potential transformer 12 and GIS become
Voltage transformer 11 is connected with tester binding post 2 respectively in power station, wherein in GIS transformer stations voltage transformer 11 be by
Try in voltage transformer, Fig. 1, its top is long cable section of ingoing line end 13, and bottom is connected respectively to tester binding post 2 and voltage is mutual
Sensor Burden box 14.
Wherein, exciting transformer 3 plays isolation boosting effect, and REgulatable reactor 6, the formation series connection of high pressure compensation electric capacity 10 are closed
Resonance step-up effect is played by system, and capicitive sample is that voltage transformer 11 is connected in parallel on standard potential transformer 12 in GIS transformer stations
In resonance circuit, boosted in the range of the 20 ~ 120% of rated voltage.Due to inductance often occurring in series resonance system
The problem of amount and flux matched bad system capacitance, optimum resonance point is not reached under power frequency, so when the power supply of output reaches
During 250V maximum output, system can not be boosted to load voltage value, therefore, it can by adjusting REgulatable reactor 6
Inductance value makes system resonance under power frequency.In figure, REgulatable reactor 6 includes being wound in hollow cylindrical coil 9, the cylinder
Moveable iron core 7 is provided with shape coil 9, the middle setting of iron core 7 has one section of dielectric 8.The position of regulation iron core 7 is
The inductance value of adjustable REgulatable reactor 6.
Power frequency supply not only possesses boosting, control action, but also can gather signal, can by measure test voltage,
The size and phase difference of electric current, are easy to judge whether resonance can reach magnitude of voltage needed for experiment, whether resonant process voltage occurs
Skyrocket situation.It is preferred that, power frequency supply also includes display, for showing what the first sampling unit 4 and the second sampling unit 5 were gathered
Information, furthermore it is also possible to alarm is set, such as voice prompt alarm or light prompting alarm, when voltage occurs in resonant process
During the phenomenon that skyrockets, alarm is carried out.
Power frequency supply is combined into one with tester, between collection subject voltage transformer and standard potential transformer 12
Differential pressure signal and be tested transformer dial gauge signal, the ratio difference and phase difference of readily available subject voltage transformer, just
In judge subject voltage transformer whether exceed《JJG314-2010 measurement voltage transformers》The error limit of vertification regulation.
Whole system is easy to adjust, simple to operate, meets onsite moving, the requirement of experiment.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure that bright specification and accompanying drawing content are made either equivalent flow conversion or to be directly or indirectly used in other related
Technical field, be included within the scope of the present invention.
Claims (4)
1. a kind of boosting calibration equipment tested for industrial frequency resonance, including power frequency supply, the output end of the power frequency supply with
Exciting transformer（3）Primary side be connected, it is characterised in that the boosting calibration equipment also includes tester and can gather electric current
With the first sampling unit of voltage（4）, the second sampling unit（5）, the exciting transformer（3）Secondary sequentially with regulative reactance
Device（6）, compensating electric capacity（10）It is connected, the compensating electric capacity（10）Earth terminal and the first sampling unit（4）It is connected, the excitation
Transformer（3）Secondary earth terminal and the second sampling unit（5）It is connected, the compensating electric capacity（10）Two ends are parallel with mark respectively
Quasi- voltage transformer（12）With voltage transformer in GIS transformer stations（11）, the standard potential transformer（12）With GIS transformer stations
Interior voltage transformer（11）It is connected respectively with tester, voltage transformer in the GIS transformer stations（11）It is negative with voltage transformer
Lotus case（14）It is connected, the compensating electric capacity（10）With REgulatable reactor（6）Connected one end is additionally provided with grading ring（15）, institute
State REgulatable reactor（6）The hollow cylindrical coil including being wound in（9）, the cylindrical coil（9）Inside it is provided with removable
Iron core（7）.
2. a kind of boosting calibration equipment tested for industrial frequency resonance according to claim 1, it is characterised in that the work
Frequency power also includes display.
3. a kind of boosting calibration equipment tested for industrial frequency resonance according to claim 2, it is characterised in that the work
Frequency power also includes alarm.
4. a kind of boosting calibration equipment tested for industrial frequency resonance according to claim 3, it is characterised in that the report
Alert device is voice prompt alarm or light prompting alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410370276.9A CN104155624B (en) | 2014-07-31 | 2014-07-31 | A kind of boosting calibration equipment tested for industrial frequency resonance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410370276.9A CN104155624B (en) | 2014-07-31 | 2014-07-31 | A kind of boosting calibration equipment tested for industrial frequency resonance |
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| CN104155624A CN104155624A (en) | 2014-11-19 |
| CN104155624B true CN104155624B (en) | 2017-07-14 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353335B (en) * | 2015-11-23 | 2018-01-05 | 国家电网公司 | A kind of AC potentiometer automatic check device and method |
| CN107340490A (en) * | 2017-07-19 | 2017-11-10 | 云南电网有限责任公司电力科学研究院 | Voltage transformer verification platform and boosting compensation method in GIS |
| CN107478874A (en) * | 2017-09-15 | 2017-12-15 | 广西电友科技发展有限公司 | Instrument is sent in exchange examination |
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| CN204009042U (en) * | 2014-07-31 | 2014-12-10 | 国家电网公司 | A kind of calibration equipment that boosts for industrial frequency resonance test |
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| CN101038331A (en) * | 2006-03-17 | 2007-09-19 | 彭黎迎 | Mutual-inductor electric energy meter comprehensive calibrator |
| CN201335872Y (en) * | 2009-01-21 | 2009-10-28 | 中国第一冶金建设有限责任公司 | Power-frequency inductance-change resonance voltage-withstanding testing device |
| CN102455419A (en) * | 2010-10-25 | 2012-05-16 | 苏州华电电气股份有限公司 | On-site calibration equipment of integrated electric power voltage transformer |
| CN202330691U (en) * | 2011-11-17 | 2012-07-11 | 宁夏电力公司电力科学研究院 | Field calibrating equipment for voltage transformer |
| CN102928705A (en) * | 2012-10-29 | 2013-02-13 | 河北省电力公司电力科学研究院 | Voltage transformer error test power frequency resonance step-up automatic test method in GIS (geographic information system) |
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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: Electric Power Research Institute of Jiangsu Electric Power Company 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: Electric Power Research Institute of Jiangsu Electric Power Company Co-patentee before: Wuhan Pandian Technology Co., Ltd. |