CN102998503A - Mutual inductor electronic unit, electronic mutual inductor and replacing method of electronic unit - Google Patents
Mutual inductor electronic unit, electronic mutual inductor and replacing method of electronic unit Download PDFInfo
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- CN102998503A CN102998503A CN2012104629969A CN201210462996A CN102998503A CN 102998503 A CN102998503 A CN 102998503A CN 2012104629969 A CN2012104629969 A CN 2012104629969A CN 201210462996 A CN201210462996 A CN 201210462996A CN 102998503 A CN102998503 A CN 102998503A
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- mutual inductor
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012937 correction Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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Abstract
The invention relates to a mutual inductor electronic unit, an electronic mutual inductor and a replacing method of the electronic unit. The mutual inductor electronic unit comprises a first adjusting circuit capable of meeting accuracy requirements by adjusting coefficients, a second adjusting circuit and a serial port. The second adjusting circuit is capable of meeting accuracy requirement of the integral electronic mutual inductor when forming the electronic mutual inductor with a sensor head. The serial port can conduct reading and writing with an upper computer. A two-stage adjusting circuit is arranged on the mutual inductor electronic unit, so that users can simply download modification coefficients of the second adjusting circuit into a new electronic unit in the replacement process. The method is free of accuracy loss, simple to operate and short in period and greatly saves maintenance cost.
Description
Technical field
The present invention relates to the replacing method of mutual inductor electronic unit, electronic mutual inductor and electronic unit thereof.
Background technology
At present, the electronic mutual inductor of widespread use mainly is made of electronic unit two parts of on high-tension side sensing head and low-pressure side in the intelligent substation, because the limitation of production technology, mutual inductor transducing head structure parameter can't reach in full accord, one time there is ± 1% difference in sensing element, therefore, every sensing head must carry out error correction by electronic unit, just can make the overall measurement accuracy of mutual inductor reach requirement.But when electronic unit broke down, the on-the-spot outage of staff was changed, and needed the scene in conjunction with sensing head debugging electronic unit, thereby satisfied accuracy requirement, realized the harmless exchange of precision.The field adjustable stage in the maintenance process requires the power operation cycle long, and attended operation is complicated, and maintenance cost increases thereupon.
Summary of the invention
When overcoming existing electronic mutual inductor fault, require staff's power operation field adjustable, cause maintenance period to prolong, the problem that maintenance cost increases, the invention provides the on-the-spot replacing method of electronic unit of a kind of electronic mutual inductor and this electronic mutual inductor, the scene need not to debug direct replacing, realizes that the precision of electronic mutual inductor is harmless.
In order to solve the problems of the technologies described above, the invention provides a kind of mutual inductor electronic unit, the serial ports that this electronic unit comprises can satisfy by adjusting coefficient the first Circuit tuning of accuracy requirement own, make the second Circuit tuning of satisfying whole electronic mutual inductor accuracy requirement and can read and write with host computer by adjustment when consisting of electronic mutual inductor with sensing head.
The present invention also provides a kind of electronic mutual inductor, comprise sensing head and electronic unit, the serial ports that described electronic unit comprises can satisfy the first Circuit tuning of itself accuracy requirement by adjusting coefficient, make the second Circuit tuning of satisfying whole electronic mutual inductor accuracy requirement and can read and write with host computer by adjustment when consisting of electronic mutual inductor with sensing head.
The present invention also provides a kind of replacing method of electronic unit of electronic mutual inductor, and the step of the method is as follows:
1). get one and make the electronic unit that satisfies accuracy requirement through the first Circuit tuning adjustment when dispatching from the factory;
2). this electronic unit is installed in consists of electronic mutual inductor on the sensing head, the coefficient of adjusting this electronic unit the second Circuit tuning is revised the error of sensing head, and electronic unit is complementary with it, satisfies the overall measurement accuracy requirement of electronic mutual inductor;
3). the correction factor of electronic unit second Circuit tuning of this electronic mutual inductor is preserved by its debug serial port;
4). judge whether this electronic mutual inductor electronic unit damages, if damage, the electronic unit that more renews is to this sensing head;
5). the correction factor of electronic unit the second Circuit tuning that will before preserve downloads in the electronic unit that newly changes, and the electronic unit that newly changes can be complementary with this sensing head, and satisfies the overall measurement accuracy requirement of electronic mutual inductor;
6). repeating step 4) and 5), make in the on-the-spot use procedure of electronic mutual inductor electronic unit and can realize the harmless replacing of precision.
When dispatching from the factory, the new electronic unit of changing in the described step 4) makes the electronic unit that satisfies accuracy requirement through once adjusting coefficient.
The invention has the beneficial effects as follows: the present invention is by arranging the two-stage Circuit tuning to the mutual inductor electronic unit, get final product in the new electronic unit that only correction factor of the second Circuit tuning need be downloaded to during replacing, the method can't harm precision, and is simple to operate, cycle is short, has greatly saved maintenance cost.
Description of drawings
Fig. 1 is the schematic diagram that mutual inductor electronic unit consistance of the present invention realizes;
Fig. 2 is the schematic diagram that electronic mutual inductor consistance of the present invention realizes;
Fig. 3 is the harmless schematic diagram of realizing that exchanges of electronic mutual inductor of the present invention;
Fig. 4 is the process flow diagram of the replacing method of electronic mutual inductor electronic unit.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
The embodiment of mutual inductor electronic unit of the present invention
The electronic unit of electronic mutual inductor refers to collector, and its effect is that the simulation small voltage signal of sensing head output is converted to digital signal, then sends bay device to certain communication modes.Electronic unit is dimerous by hardware and software, and between the individuality, its ardware feature can not be in full accord.Therefore, we are provided with the first Circuit tuning, when all electronic units are inputted same signal, by adjusting the correction factor of the first Circuit tuning, make the output of all electronic units in full accord.So just reached the on all four effect of all electronic unit conversion characteristics.Electronic mutual inductor is dimerous by sensing head and electronic unit.And the characteristic between different sensing heads step may be in full accord, and sensing head have can not adjust to consistent.Therefore, we are provided with the second Circuit tuning of electronic unit, and when sensing head and electronic unit uniting and adjustment, the correction factor of the second Circuit tuning by adjusting electronic unit makes the precision of sensing head reach the measuring accuracy requirement.
As shown in Figure 1, adjusted coefficient K 1 module 6 and second-order correction COEFFICIENT K 2 modules 7 that include debug serial port 5, the first Circuit tuning in this electronic unit 1.Electronic unit without concrete accuracy requirement, only had coherence request.Wherein electronic unit 1 needs to ensure the consistance of electronic unit 1 before dispatching from the factory, and this consistance is to realize by the adjusted coefficient K 1 of regulating its first Circuit tuning.At first, this electronic unit 1 is linked to each other with host computer 4, host computer 4 is preset as 1 to the adjusted coefficient K 2 of the second Circuit tuning by the debug serial port of electronic unit 1; Electronic unit 1 itself has online adjustment capability 3, then regulates the adjusted coefficient K 1 of the first Circuit tuning, makes this electronic unit 1 can satisfy its consistance and accuracy requirement, and to this moment resulting the first Circuit tuning adjusted coefficient K 1 be cured.
The embodiment of electronic mutual inductor of the present invention
As shown in Figure 2, this electronic mutual inductor comprises: electronic unit 1 and sensing head 2 wherein include adjusted coefficient K 1 module 6 of debug serial port 5, the first Circuit tuning and adjusted coefficient K 2 modules 7 of the second Circuit tuning in the electronic unit 1.Wherein electronic unit 1 is before dispatching from the factory, need to ensure the consistance of electronic unit 1, this consistance is to realize by the adjusted coefficient K 1 of regulating its first Circuit tuning, at first, this electronic unit 1 is linked to each other with host computer 4, and host computer 4 is preset as 1 to the adjusted coefficient K 2 of the second Circuit tuning by the debug serial port of electronic unit 1; Electronic unit 1 itself has online adjustment capability 3, then regulates the adjusted coefficient K 1 of the first Circuit tuning, makes this electronic unit 1 can satisfy its consistance and accuracy requirement, and to this moment resulting the first Circuit tuning adjusted coefficient K 1 be cured.When this electronic unit 1 need to cooperate with sensing head 2, must carry out machine debugging to the electronic sensor that is formed by electronic unit 1 and sensing head 2, the adjusted coefficient K 2 of the second Circuit tuning by regulating electronic unit 1 makes it satisfy the overall measurement accuracy requirement.
The embodiment of the replacing method of electronic mutual inductor electronic unit of the present invention
The present invention is by arranging the two-stage Circuit tuning to the mutual inductor electronic unit, get final product in the new electronic unit that only needs the correction factor with the second Circuit tuning download to during replacing, its detailed process as shown in Figure 4, concrete steps are as follows:
1. get an adjusted coefficient K 1 through the first Circuit tuning adjustment when dispatching from the factory and make the electronic unit 1 that satisfies accuracy requirement, before electronic unit 1 dispatches from the factory, by debug serial port 5, link to each other with host computer 4, the adjusted coefficient K 2 of default the second Circuit tuning is 1, regulate the adjusted coefficient K 1 of the first Circuit tuning, ensure the electronic unit consistance, satisfy accuracy requirement.
2. form electronic mutual inductor by electronic unit 1 and sensing head 2, the debug serial port 5 by electronic unit 1 links to each other with host computer 4, regulates the adjusted coefficient K 2 of its second Circuit tuning, ensures that this electronic mutual inductor satisfies its overall measurement accuracy requirement.
3. and the adjusted coefficient K 2 of the second Circuit tuning through overregulating resulting electronic unit 1 be saved in the host computer 4 by its debug serial port.
4. this electronic mutual inductor in use, if its electronic unit 1 breaks down, when needing to change, only need a new electronic unit 8, as shown in Figure 3, these new electronic unit 8 structures are the same with electronic unit 1, and the adjusted coefficient K 1 of the first Circuit tuning of new electronic unit 8 satisfies its conforming requirement and is solidificated in this new electronic unit 8 through overregulating, and the adjusted coefficient K 2 of the second Circuit tuning of new electronic unit 8 is predetermined to be 1.
5. working as this new electronic unit 8 will be used with sensing head 2, only need this new electronic unit 8 is linked to each other with host computer 4, by the debug serial port on the new electronic unit 8 adjusted coefficient K 2 of the second Circuit tuning of the electronic unit 1 of preserving before the host computer 4 is downloaded in the correction factor of the second Circuit tuning of new electronic unit 8, can satisfy overall measurement accuracy requirement by this new electronic unit 8 and the electronic sensor that sensing head 2 forms this moment, thereby the direct replacing that realizes the electronic mutual inductor electronic unit need not debugging.
6. repeating step 4 and 5, the method have guaranteed that electronic mutual inductor is in use directly changed and need not debugging, and satisfied accuracy requirement.
Claims (4)
1. mutual inductor electronic unit is characterized in that: the serial ports that this mutual inductor electronic unit comprises can satisfy the first Circuit tuning of itself accuracy requirement by adjusting coefficient, make the second Circuit tuning of satisfying whole electronic mutual inductor accuracy requirement and can read and write with host computer by adjustment when consisting of electronic mutual inductor with sensing head.
2. electronic mutual inductor, comprise sensing head and electronic unit, it is characterized in that: the serial ports that described electronic unit comprises can satisfy the first Circuit tuning of itself accuracy requirement by adjusting coefficient, make the second Circuit tuning of satisfying whole electronic mutual inductor accuracy requirement and can read and write with host computer by adjustment when consisting of electronic mutual inductor with sensing head.
3. replacing method of electronic mutual inductor electronic unit as claimed in claim 2, it is characterized in that: the step of the method is as follows:
1). get one and make the electronic unit that satisfies accuracy requirement through the first Circuit tuning adjustment when dispatching from the factory;
2). this electronic unit is installed in consists of electronic mutual inductor on the sensing head, the coefficient of adjusting this electronic unit the second Circuit tuning is revised the error of sensing head, and electronic unit is complementary with it, satisfies the overall measurement accuracy requirement of electronic mutual inductor;
3). the correction factor of electronic unit second Circuit tuning of this electronic mutual inductor is preserved by its debug serial port;
4). judge whether this electronic mutual inductor electronic unit damages, if damage, the electronic unit that more renews is to this sensing head;
5). the correction factor of electronic unit the second Circuit tuning that will before preserve downloads in the electronic unit that newly changes, and the electronic unit that newly changes can be complementary with this sensing head, and satisfies the overall measurement accuracy requirement of electronic mutual inductor;
6). repeating step 4) and 5), make in the on-the-spot use procedure of electronic mutual inductor electronic unit and can realize the harmless replacing of precision.
4. the replacing method of electronic mutual inductor electronic unit according to claim 3 is characterized in that: make the electronic unit that satisfies accuracy requirement through the first Circuit tuning adjustment when the new electronic unit of changing in the described step 4) dispatches from the factory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462996.9A CN102998503B (en) | 2012-11-16 | 2012-11-16 | Mutual inductor electronic unit, electronic mutual inductor and replacing method of electronic unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462996.9A CN102998503B (en) | 2012-11-16 | 2012-11-16 | Mutual inductor electronic unit, electronic mutual inductor and replacing method of electronic unit |
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| CN102998503A true CN102998503A (en) | 2013-03-27 |
| CN102998503B CN102998503B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210462996.9A Expired - Fee Related CN102998503B (en) | 2012-11-16 | 2012-11-16 | Mutual inductor electronic unit, electronic mutual inductor and replacing method of electronic unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323639A (en) * | 2013-05-27 | 2013-09-25 | 河南省电力公司鹤壁供电公司 | Precision lossless replacing method and device for collector in electronic transformer |
| CN112782575A (en) * | 2020-12-27 | 2021-05-11 | 常熟开关制造有限公司(原常熟开关厂） | Current measuring device for circuit breaker, maintenance and correction method of current measuring device and intelligent circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183606A (en) * | 2007-10-15 | 2008-05-21 | 华中科技大学 | Electronic type current mutual inductor |
| CN102053191A (en) * | 2010-12-06 | 2011-05-11 | 国电南瑞科技股份有限公司 | Electronic voltage transformer using data fusion technology and error calibration method thereof |
| CN201876485U (en) * | 2010-12-01 | 2011-06-22 | 许继集团有限公司 | Electronic transformer based on intelligent conditioning unit |
| CN201887715U (en) * | 2010-11-15 | 2011-06-29 | 山东泰开互感器有限公司 | Voltage transformer error regulating device |
| US20110156698A1 (en) * | 2009-12-31 | 2011-06-30 | Veris Industries, Llc | Phase canceling current transducer |
-
2012
- 2012-11-16 CN CN201210462996.9A patent/CN102998503B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183606A (en) * | 2007-10-15 | 2008-05-21 | 华中科技大学 | Electronic type current mutual inductor |
| US20110156698A1 (en) * | 2009-12-31 | 2011-06-30 | Veris Industries, Llc | Phase canceling current transducer |
| CN201887715U (en) * | 2010-11-15 | 2011-06-29 | 山东泰开互感器有限公司 | Voltage transformer error regulating device |
| CN201876485U (en) * | 2010-12-01 | 2011-06-22 | 许继集团有限公司 | Electronic transformer based on intelligent conditioning unit |
| CN102053191A (en) * | 2010-12-06 | 2011-05-11 | 国电南瑞科技股份有限公司 | Electronic voltage transformer using data fusion technology and error calibration method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323639A (en) * | 2013-05-27 | 2013-09-25 | 河南省电力公司鹤壁供电公司 | Precision lossless replacing method and device for collector in electronic transformer |
| CN112782575A (en) * | 2020-12-27 | 2021-05-11 | 常熟开关制造有限公司(原常熟开关厂） | Current measuring device for circuit breaker, maintenance and correction method of current measuring device and intelligent circuit breaker |
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| CN102998503B (en) | 2015-01-21 |
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