CN201555906U - Intelligent CT&PT on-line monitoring device - Google Patents
Intelligent CT&PT on-line monitoring device Download PDFInfo
- Publication number
- CN201555906U CN201555906U CN2009202533325U CN200920253332U CN201555906U CN 201555906 U CN201555906 U CN 201555906U CN 2009202533325 U CN2009202533325 U CN 2009202533325U CN 200920253332 U CN200920253332 U CN 200920253332U CN 201555906 U CN201555906 U CN 201555906U
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- signal conversion
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Abstract
The utility model relates to an intelligent CT&PT on-line monitoring device which comprises a monitoring signal sensor arranged on a CT&PT; the sensor is connected with a signal acquisition unit which is connected with a signal conversion processing device that is connected with an expert system for post-processing signals; and the signal conversion processing device is also connected with a man-machine interaction device. By utilizing the modern communication technology, measurement technology, equipment technology, control technology and the like, the intelligent CT&PT on-line monitoring device provided by the utility model realizes real-time and on-line automatic detection for the CT&PT, and can effectively prevent various faults from occurring; furthermore, once the fault occurs, the device can rapidly deal with the fault in time, thus reducing the accident rate; and the intelligent CT&PT on-line monitoring device is in accordance with the requirement of a modern intelligent power grid, and has very high popularization and application values.
Description
Technical field
The utility model relates to field transformer, specifically is a kind of intelligent CT﹠amp; The PT on-Line Monitor Device.
Background technology
CT, current transformer, English spelling Current Transformer is the big electric current with primary side, becomes in proportion to be fit to use by instrument or relay, rated current is the conversion equipment of 5A or 1A.Its principle of work is similar with transformer.Be also referred to as TA or LH (old symbol).
PT, voltage transformer (VT), English spelling Phase voltage Transformers is that high voltage with primary side becomes in proportion and is fit to rated voltage that instrument or relay the use conversion equipment as 100V.The principle of work of electromagnetic potential transformer is identical with transformer.Be also referred to as TV or YH (old symbol).
CT﹠amp; PT is in long-term the use, and its protection and maintenance are very important topics always.At present, mode commonly used is a prophylactic repair, and hand inspection CT﹠amp at set intervals promptly just cuts off the power supply; Whether PT is working properly, and there is very big defective in this mode, can not in time pinpoint the problems, and the afterreaction that goes wrong is untimely, and hysteresis quality is very strong.
Summary of the invention
At above-mentioned problem, the utility model provides a kind of simple in structure, novel, intelligent transformer protection system of utilizing technology such as modern sensing, measurement to realize.
A kind of intelligent CT﹠amp; The PT on-Line Monitor Device is included in CT﹠amp; PT1 is provided with the sensor of monitor signal, and sensor connects signal picker 4, and signal picker 4 is connected with signal conversion processes device 5, and signal conversion processes device 5 is connected to expert system and carries out signal post-processing, and is connected with human-computer interaction device.Various signals of sensor monitors and by the signal picker collection carry out rough handling through the signal conversion processes device, further analyze through expert system again, draw numerical value such as dielectric loss, equivalent capacitance, reach the purpose of real time on-line monitoring.
Preferably, described sensor comprises current sensor, dielectric loss sensor, temperature sensor.Wherein, current sensor monitoring end bottle obtains corresponding reference voltage signal then to vagabond current, and expert system can draw information such as dielectric loss and electric capacity at this point; Temperature sensor then can the monitor temperature value, and dielectric loss and electric capacity that expert system calculates are calibrated.
Preferably, described signal conversion processes device comprises analog to digital converter, amplifier and rectifier, realize the signal of sensor is carried out pre-service, and the needed signal of output expert system, this is to realize easily for modern electronic technology.
Described expert system comprises a microprocessor, realizes collection, the analysis of signal.For example, a computing machine can be, processing, analysis and storage etc. can be realized data.Can also be provided with warning device, exceed the interval of setting in data after, can report to the police, remind the user to make a response.
Described human-computer interaction device comprises keyboard, display, printer interface, or the like.
The intelligent CT﹠amp that the utility model provides; The PT on-Line Monitor Device is utilized modern communication technology, measuring technique, equipment and technology, control technology etc., has realized CT﹠amp; The real-time online of PT detects automatically, can effectively prevent the generation of various faults; And in case break down, also can be in time, handle fast, reduced accident rate; Meet the requirement of modern intelligent grid, have highly application value.
Description of drawings
Fig. 1 gets electrical schematic diagram for the utility model embodiment.
Embodiment
Embodiment with indefiniteness further explains, illustrates the technical program below.
A kind of intelligent CT﹠amp; The PT on-Line Monitor Device is included in CT﹠amp; PT1 is provided with the sensor of monitor signal, and sensor connects signal picker 4, and signal picker 4 is connected with signal conversion processes device 5, and signal conversion processes device 5 is connected to expert system and carries out signal post-processing, and is connected with human-computer interaction device.
Described sensor comprises current sensor 2, dielectric loss sensor 3, temperature sensor 10.Wherein, current sensor 2 monitoring end bottles obtain corresponding reference voltage signal then to vagabond current, and expert system can draw information such as dielectric loss and electric capacity at this point; Temperature sensor 10 then can the monitor temperature value, and dielectric loss and electric capacity that expert system calculates are calibrated.
Described signal conversion processes device 5 comprises analog to digital converter, amplifier and rectifier, realizes the signal of sensor is carried out pre-service, and the needed signal of output expert system, this is to realize easily for modern electronic technology.
Described expert system is a computing machine 6, can realize processing, analysis and storage etc. to data.Can also be provided with warning device, exceed the interval of setting in data after, can report to the police, remind the user to make a response.
Described human-computer interaction device comprises keyboard 7, display 8, printer interface 9.
Various signals of sensor monitors and by the signal picker collection carry out rough handling through the signal conversion processes device, further analyze through expert system again, draw numerical value such as dielectric loss, equivalent capacitance, reach the purpose of real time on-line monitoring.
Claims (5)
1. intelligent CT﹠amp; The PT on-Line Monitor Device is characterized in that: be included in CT﹠amp; PT is provided with the sensor of monitor signal, and sensor connects signal picker, and signal picker is connected with the signal conversion processes device, and the signal conversion processes device is connected to expert system and carries out signal post-processing, and is connected with human-computer interaction device.
2. intelligent CT﹠amp according to claim 1; The PT on-Line Monitor Device is characterized in that: described sensor comprises current sensor, dielectric loss sensor, temperature sensor.
3. intelligent CT﹠amp according to claim 1 and 2; The PT on-Line Monitor Device is characterized in that: described signal conversion processes device comprises analog to digital converter, amplifier and rectifier.
4. intelligent CT﹠amp according to claim 3; The PT on-Line Monitor Device is characterized in that: described expert system comprises a microprocessor, realizes collection, the analysis of signal.
5. intelligent CT﹠amp according to claim 4; The PT on-Line Monitor Device is characterized in that: described human-computer interaction device comprises keyboard, display, printer interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202533325U CN201555906U (en) | 2009-11-16 | 2009-11-16 | Intelligent CT&PT on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202533325U CN201555906U (en) | 2009-11-16 | 2009-11-16 | Intelligent CT&PT on-line monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201555906U true CN201555906U (en) | 2010-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202533325U Expired - Fee Related CN201555906U (en) | 2009-11-16 | 2009-11-16 | Intelligent CT&PT on-line monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201555906U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175922A (en) * | 2011-01-24 | 2011-09-07 | 重庆大学 | Phasor measurement unit (PMU) measurement data-based power line parameter identification and estimation method |
| CN105098712A (en) * | 2015-08-25 | 2015-11-25 | 国家电网公司 | Protection equipment for 6-35kV power grid voltage transformers |
| CN105223599A (en) * | 2015-10-23 | 2016-01-06 | 上海奕瑞光电子科技有限公司 | A kind of online autodiagnosis monitoring device of X-ray flat panel detector |
-
2009
- 2009-11-16 CN CN2009202533325U patent/CN201555906U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175922A (en) * | 2011-01-24 | 2011-09-07 | 重庆大学 | Phasor measurement unit (PMU) measurement data-based power line parameter identification and estimation method |
| CN102175922B (en) * | 2011-01-24 | 2013-04-24 | 重庆大学 | Phasor measurement unit (PMU) measurement data-based power line parameter identification and estimation method |
| CN105098712A (en) * | 2015-08-25 | 2015-11-25 | 国家电网公司 | Protection equipment for 6-35kV power grid voltage transformers |
| CN105223599A (en) * | 2015-10-23 | 2016-01-06 | 上海奕瑞光电子科技有限公司 | A kind of online autodiagnosis monitoring device of X-ray flat panel detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG POWER EQUIPMENT CO., LTD. Free format text: FORMER NAME: SHANDONG POWER EQUIPMENT MANUFACTURING CO., LTD. Owner name: SHANDONG POWER EQUIPMENT MANUFACTURING CO., LTD. Free format text: FORMER NAME: SHANDONG POWER EQUIPMENT COMPANY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee after: SHANDONG POWER EQUIPMENT Co.,Ltd. Address before: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee before: Shandong Power Equipment Co.,Ltd. Address after: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee after: Shandong Power Equipment Co.,Ltd. Address before: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee before: Shandong Power Equipment Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20171116 |