CN202362395U - Real-time analysis system for overload capacity of transformer - Google Patents
Real-time analysis system for overload capacity of transformer Download PDFInfo
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- CN202362395U CN202362395U CN2011204208231U CN201120420823U CN202362395U CN 202362395 U CN202362395 U CN 202362395U CN 2011204208231 U CN2011204208231 U CN 2011204208231U CN 201120420823 U CN201120420823 U CN 201120420823U CN 202362395 U CN202362395 U CN 202362395U
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Abstract
The utility model provides a real-time analysis system for overload capacity of a transformer. The real-time analysis system consists of a current monitoring module, an ambient temperature monitoring module, a transformer top oil temperature monitoring module and an overload analysis unit, wherein the current monitoring module is used for monitoring real-time running current of the transformer; the ambient temperature monitoring module is used for monitoring ambient temperature; the transformer top oil temperature monitoring module is used for monitoring the temperature of oil at the top of the transformer; and the input end of the overload analysis unit is connected with output ends of the current monitoring module, ambient temperature monitoring module and the transformer top oil temperature monitoring module respectively. The system is adopted to be capable of analyzing and calculating the maximum overload capacity of the transformer in a current running condition, and conducting overload time analysis, thus scientifically allocating load of the power transformer in a power system, and providing decision support for scheduling departments in the power system.
Description
Technical field
The utility model relates to can be to the medium-and-large-sized oil immersed type formula power transformer of operation in the electric system, the real-time analyzer that carries out real-time capability of overload analysis and provide running overload to advise.
Background technology
Large oil immersed power transformer will cause the power outage in the big zone as because of overload causes transformer fault, gives the Operation of Electric Systems deleterious impact.Continuous increase along with power load; The load of domestic some big and medium-sized cities large-scale power transformer constantly increases; And present means issue the run unit guidance of loading after mainly adjusting by R&D institution; Cycle during this is longer, can not realize real-time analysis and provide the overload decision recommendation, and the calculating of R&D institution only can rely on the service condition of hypothesis to carry out computational analysis.Native system can combine other transformer load state and environment temperature in real-time transformer load state, transformer state, the transformer station; The maximum capability of overload of this transformer of analytical calculation that can be real-time; And can carry out the analysis of overload time; This load distribution to power transformer in the electric system is very important, can be the interior traffic department of electric system simultaneously real-time decision support is provided.
Do not see like product at present, the most relevant product is the ITM series of products of U.S. qualitrol company, and existing product mainly is made up of current monitoring unit, top-oil temperature access unit and ambient temperature measurement unit.The top-oil temperature and the hot(test)-spot temperature of the access calculating transformer through above amount.But this series products can not carry out the analysis and the overload decision recommendation of capability of overload to the dispatching requirement of electric system at present.
Summary of the invention
The utility model technical matters to be solved provides a kind of transformer capability of overload real-time analyzer, the maximum capability of overload of this transformer of analytical calculation that can be real-time under current operation conditions, and can carry out the analysis of overload time.
The transformer capability of overload real-time analyzer of the utility model comprises:
The current monitoring module, be used to monitor the real time execution electric current of transformer;
The environment temperature monitoring modular, be used for the monitoring of environmental temperature;
Transformer top-oil temperature monitoring modular, be used to monitor the transformer top-oil temperature;
Overload analytic unit, its input end connect the output terminal of current monitoring module, environment temperature monitoring modular, transformer top-oil temperature monitoring modular respectively.
Described current monitoring module is the current monitoring mutual inductor, and described environment temperature monitoring modular is meant environment temperature sensor, and described transformer top-oil temperature monitoring device is meant oil temperature sensor.
Described overload analytic unit can be arranged near the transformer body, also can be positioned over main control room in the transformer station.
Adopt the maximum capability of overload of native system this transformer of analytical calculation in real time under current operation conditions, and can carry out the analysis of overload time.Thereby the load of power transformer in the electric system science of carrying out is distributed, and can be that traffic department provides decision support in the electric system.
Description of drawings
Fig. 1 is the structural representation of the real-time analyzer of the utility model
Embodiment
The transformer capability of overload real-time analyzer of the utility model comprises:
The current monitoring module, be used to monitor the real time execution electric current of transformer;
The environment temperature monitoring modular, be used for the monitoring of environmental temperature;
Transformer top-oil temperature monitoring modular, be used to monitor the transformer top-oil temperature;
Overload analytic unit, its input end connect the output terminal of current monitoring module, environment temperature monitoring modular, transformer top-oil temperature monitoring modular respectively.
Described current monitoring module is the current monitoring mutual inductor, and described environment temperature monitoring modular is meant environment temperature sensor, and described transformer top-oil temperature monitoring device is meant oil temperature sensor.(as shown in Figure 1)
Described overload analytic unit can be arranged near the transformer body, also can be positioned over main control room in the transformer station.
Crucial operational scheme of the present invention:
Step 1, current monitoring module, environment temperature monitoring modular, transformer top-oil temperature monitoring modular obtain real time execution electric current, environment temperature and the top-oil temperature degree of institute's monitoring transformer;
Step 2, the real time execution electric current that obtains, environment temperature and top-oil temperature degrees of data are sent into transformer overload real-time analysis unit through optical cable;
The top-oil temperature and the hot spot temperature of winding of the computing method calculating transformer that step 3, employing " GB/T 1094.7-2008 oil-immersed power transformer load guide rule " provide
The different insulative grade large-scale power transformer hot spot temperature of winding limit value of being mentioned in step 4, the basis " GB/T 1094.7-2008 oil-immersed power transformer load guide rule "; Carry out the setting of large-scale power transformer hot spot temperature of winding alarming value; The general oil immersed type large-scale power transformer class of insulation is the A level, and corresponding hot spot temperature of winding limit value is 140 degrees centigrade.
If step 5 hot spot temperature of winding has reached warning value, transformer capability of overload real-time analyzer then can strengthen the analysis frequency of hot spot temperature of winding.
If step 5 hot spot temperature of winding does not reach alarming value; System will carry out real-time overload analysis so; Analyze the halfhour maximum capability of overload of transformer this moment; And on transformer overload real-time analysis unit, show, offer suggestions in the transformer station field operator or instruct.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the utility model.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, the rights protection scope of the utility model should be listed like claims.
Claims (5)
1. a transformer capability of overload real-time analyzer is characterized in that, comprising:
The current monitoring module, be used to monitor the real time execution electric current of transformer;
The environment temperature monitoring modular, be used for the monitoring of environmental temperature;
Transformer top-oil temperature monitoring modular, be used to monitor the transformer top-oil temperature;
Overload analytic unit, its input end connect the output terminal of current monitoring module, environment temperature monitoring modular, transformer top-oil temperature monitoring modular respectively.
2. transformer capability of overload real-time analyzer according to claim 1 is characterized in that described current monitoring module is the current monitoring mutual inductor.
3. transformer capability of overload real-time analyzer according to claim 1 is characterized in that described environment temperature monitoring modular is meant environment temperature sensor.
4. transformer capability of overload real-time analyzer according to claim 1 is characterized in that, described transformer top-oil temperature monitoring device is meant oil temperature sensor.
5. transformer capability of overload real-time analyzer according to claim 1 is characterized in that described overload analytic unit can be arranged near the transformer body, also can be positioned over main control room in the transformer station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204208231U CN202362395U (en) | 2011-10-28 | 2011-10-28 | Real-time analysis system for overload capacity of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204208231U CN202362395U (en) | 2011-10-28 | 2011-10-28 | Real-time analysis system for overload capacity of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362395U true CN202362395U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204208231U Expired - Lifetime CN202362395U (en) | 2011-10-28 | 2011-10-28 | Real-time analysis system for overload capacity of transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202362395U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879696A (en) * | 2012-10-24 | 2013-01-16 | 上海市电力公司 | Automatic judgment method for over-load operational feasibility of transformer |
| CN102928700A (en) * | 2012-10-24 | 2013-02-13 | 上海市电力公司 | Method for dynamically monitoring state of power transformer in real time |
| CN103138397A (en) * | 2012-11-19 | 2013-06-05 | 江西省电力科学研究院 | Method of dynamic capacity increasing of distribution network lines based on technology of internet of things |
| CN103399241A (en) * | 2013-08-15 | 2013-11-20 | 南京新联电子股份有限公司 | Distribution transformer fault diagnosis system and method based on relation between temperature rise and load |
| CN103543352A (en) * | 2013-09-25 | 2014-01-29 | 国家电网公司 | Method for determining dynamic overload curves of transformers based on operating data |
| CN103675543A (en) * | 2013-12-05 | 2014-03-26 | 国家电网公司 | Monitoring system of circuit loading |
| CN105244845A (en) * | 2015-10-29 | 2016-01-13 | 国网浙江省电力公司绍兴供电公司 | Transformer intelligent overload combined cut-off apparatus |
| CN105262050A (en) * | 2015-10-29 | 2016-01-20 | 国网浙江省电力公司绍兴供电公司 | Intelligent overload shedding control system for transformer |
| CN115048757A (en) * | 2022-01-21 | 2022-09-13 | 国网浙江省电力有限公司丽水供电公司 | Real-time online overload calculation method for transformer |
-
2011
- 2011-10-28 CN CN2011204208231U patent/CN202362395U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879696A (en) * | 2012-10-24 | 2013-01-16 | 上海市电力公司 | Automatic judgment method for over-load operational feasibility of transformer |
| CN102928700A (en) * | 2012-10-24 | 2013-02-13 | 上海市电力公司 | Method for dynamically monitoring state of power transformer in real time |
| CN103138397A (en) * | 2012-11-19 | 2013-06-05 | 江西省电力科学研究院 | Method of dynamic capacity increasing of distribution network lines based on technology of internet of things |
| CN103399241A (en) * | 2013-08-15 | 2013-11-20 | 南京新联电子股份有限公司 | Distribution transformer fault diagnosis system and method based on relation between temperature rise and load |
| CN103399241B (en) * | 2013-08-15 | 2016-01-20 | 南京新联电子股份有限公司 | Based on substation transformer fault diagnosis system and the method for temperature rise and load relation |
| CN103543352A (en) * | 2013-09-25 | 2014-01-29 | 国家电网公司 | Method for determining dynamic overload curves of transformers based on operating data |
| CN103543352B (en) * | 2013-09-25 | 2016-05-18 | 国家电网公司 | Determine the method for the dynamic overload curve of transformer based on service data |
| CN103675543A (en) * | 2013-12-05 | 2014-03-26 | 国家电网公司 | Monitoring system of circuit loading |
| CN105244845A (en) * | 2015-10-29 | 2016-01-13 | 国网浙江省电力公司绍兴供电公司 | Transformer intelligent overload combined cut-off apparatus |
| CN105262050A (en) * | 2015-10-29 | 2016-01-20 | 国网浙江省电力公司绍兴供电公司 | Intelligent overload shedding control system for transformer |
| CN115048757A (en) * | 2022-01-21 | 2022-09-13 | 国网浙江省电力有限公司丽水供电公司 | Real-time online overload calculation method for transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170414 Address after: 200437 Handan Road, Shanghai, No. 171, No. Co-patentee after: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. Patentee after: SHANGHAI SEPRI POWER TECHNOLOGY Co.,Ltd. Address before: 200437 Handan Road, Shanghai, No. 171, No. Patentee before: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201116 Address after: 200437 102, building 2, No.171 Handan Road, Hongkou District, Shanghai Patentee after: SHANGHAI HENGNENGTAI ENTERPRISE MANAGEMENT Co.,Ltd. PUNENG POWER TECHNOLOGY ENGINEERING BRANCH Patentee after: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. Address before: 200023 room 1301, building 1, No. 430, Xujiahui Road, Huangpu District, Shanghai Patentee before: SHANGHAI HENGNENGTAI ENTERPRISE MANAGEMENT Co.,Ltd. Patentee before: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. Effective date of registration: 20201116 Address after: 200023 room 1301, building 1, No. 430, Xujiahui Road, Huangpu District, Shanghai Patentee after: SHANGHAI HENGNENGTAI ENTERPRISE MANAGEMENT Co.,Ltd. Patentee after: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. Address before: 200437 No. 171, Handan Road, Shanghai, Hongkou District Patentee before: SHANGHAI SEPRI POWER TECHNOLOGY Co.,Ltd. Patentee before: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
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| CX01 | Expiry of patent term |