CN103412247A - Ring main unit partial discharge monitoring system - Google Patents
Ring main unit partial discharge monitoring system Download PDFInfo
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- CN103412247A CN103412247A CN2013103793091A CN201310379309A CN103412247A CN 103412247 A CN103412247 A CN 103412247A CN 2013103793091 A CN2013103793091 A CN 2013103793091A CN 201310379309 A CN201310379309 A CN 201310379309A CN 103412247 A CN103412247 A CN 103412247A
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Abstract
The invention discloses a ring main unit partial discharge monitoring system which comprises a gas pumping pipeline, a regulating valve, a pressure sensor, a gas sampling unit, a filter amplifying unit, an analog-digital conversion unit, a temperature sensor, a signal analysis unit, a data storage unit and a display unit. One end of the gas pumping pipeline extends to the inner portion of a ring main unit and the other end of the gas pumping pipeline is connected with the gas sampling unit; the regulating valve is installed on the gas pumping pipeline; the pressure sensor is installed on the portion, between the regulating valve and the gas sampling unit, of the gas pumping pipeline and connected with the display unit; the filter amplifying unit is connected with the gas sampling unit; the analog-digital conversion unit is connected with the filter amplifying unit and the temperature sensor; the signal analysis unit is respectively connected with the analog-digital conversion unit, the data storage unit and the display unit. The ring main unit partial discharge monitoring system can accurately measure the concentration value of ozone and the temperature value inside the ring main unit and monitor partial discharge of the ring main unit.
Description
Technical field
The present invention relates to a kind of ring main unit partial discharge monitoring system.
Background technology
As the key equipment of distribution network, the safe and stable operation of ring main unit need to be protected.Therefore, need to monitor its running status, especially the effluve situation of ring main unit inside.And produce this principle of ozone according to effluve, thereby differentiate discharge severity, the good monitoring means of can yet be regarded as according to the concentration value of ozone.Therefore, how realizing the ring main unit partial discharge monitoring, is the problem that the applicant is devoted to solve.
Summary of the invention
The object of the present invention is to provide a kind of ring main unit partial discharge monitoring system, simple in structure, with low cost, ozone value concentration and the temperature value of energy Measurement accuracy ring main unit inside, realize the monitoring to the ring main unit shelf depreciation.
The technical scheme that realizes above-mentioned purpose is:
A kind of ring main unit partial discharge monitoring system, comprise pump-line, variable valve, pressure transducer, gas sampling unit, filter and amplification unit, AD conversion unit, temperature sensor, signal analysis unit, data storage cell and display unit, wherein:
Described pump-line one end stretches into ring main unit inside, and the other end connects described gas sampling unit;
Described variable valve is installed on described pump-line, for adjusting gas flow;
Described pressure transducer is installed on the pump-line between described variable valve and gas sampling unit, and connects described display unit, shows be used to gathering force value and passing to described display unit;
Described gas sampling unit sampling gas, and output ozone concentration signal;
Described filter and amplification unit connects described gas sampling unit, and the ozone concentration signal of reception is carried out to filtering and amplifies rear output;
Described temperature sensor sampling temperature signal output;
Described AD conversion unit connects described filter and amplification unit and temperature sensor, and ozone concentration signal after temperature signal and filter and amplification is exported after converting digital signal to;
Described signal analysis unit connects respectively described AD conversion unit, data storage cell and display unit, the digital signal received is carried out to calibration analyte, obtain corresponding ozone concentration value and temperature value, and flow to respectively described data storage cell storage and flow to described display unit demonstration.
The invention has the beneficial effects as follows: the present invention is by the variable valve adjust flux, pressure transducer induction pressure value, and filtering, amplification etc., measure ozone value concentration and the temperature value of ring main unit inside exactly, and shown and store, realize the monitoring to the ring main unit shelf depreciation.Simultaneously, the present invention is simple in structure, with low cost, has high practicality.
The accompanying drawing explanation
Fig. 1 is the structural representation of ring main unit partial discharge monitoring system of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Refer to Fig. 1, ring main unit partial discharge monitoring system of the present invention, comprise pump-line 1, variable valve 2, pressure transducer 3, gas sampling unit 4, filter and amplification unit 5, AD conversion unit 6, temperature sensor 7, signal analysis unit 8, data storage cell 9 and display unit 10, wherein:
Pump-line 1 one ends stretch into ring main unit inside, and the other end connects gas sampling unit 4;
Gas sampling unit 4 sample gas, and output ozone concentration signal;
Filter and amplification unit 5 connects gas sampling unit 4, and the ozone concentration signal of reception is carried out to filtering and amplifies rear output;
AD conversion unit 6 connects filter and amplification unit 5 and temperature sensor 7, and ozone concentration signal after temperature signal and filter and amplification is exported after converting digital signal to;
Above embodiment is only for explanation the present invention's, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (1)
1. ring main unit partial discharge monitoring system, it is characterized in that, comprise pump-line, variable valve, pressure transducer, gas sampling unit, filter and amplification unit, AD conversion unit, temperature sensor, signal analysis unit, data storage cell and display unit, wherein:
Described pump-line one end stretches into ring main unit inside, and the other end connects described gas sampling unit;
Described variable valve is installed on described pump-line, for adjusting gas flow;
Described pressure transducer is installed on the pump-line between described variable valve and gas sampling unit, and connects described display unit, shows be used to gathering force value and passing to described display unit;
Described gas sampling unit sampling gas, and output ozone concentration signal;
Described filter and amplification unit connects described gas sampling unit, and the ozone concentration signal of reception is carried out to filtering and amplifies rear output;
Described temperature sensor sampling temperature signal output;
Described AD conversion unit connects described filter and amplification unit and temperature sensor, and ozone concentration signal after temperature signal and filter and amplification is exported after converting digital signal to;
Described signal analysis unit connects respectively described AD conversion unit, data storage cell and display unit, the digital signal received is carried out to calibration analyte, obtain corresponding ozone concentration value and temperature value, and flow to respectively described data storage cell storage and flow to described display unit demonstration.
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CN2013103793091A CN103412247A (en) | 2013-08-27 | 2013-08-27 | Ring main unit partial discharge monitoring system |
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CN2013103793091A CN103412247A (en) | 2013-08-27 | 2013-08-27 | Ring main unit partial discharge monitoring system |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104502545A (en) * | 2015-01-12 | 2015-04-08 | 国网上海市电力公司 | Gas exhausting type ozone detector used for ring main unit |
CN104502547A (en) * | 2015-01-12 | 2015-04-08 | 国网上海市电力公司 | Detection method for ring main unit ozone detector |
CN105759184A (en) * | 2016-02-22 | 2016-07-13 | 成都振中电气有限公司 | Transformer partial discharge detection system |
CN106501692A (en) * | 2016-11-17 | 2017-03-15 | 国网湖北省电力公司咸宁供电公司 | A kind of power distribution automation ring main unit partial discharge monitoring method and system |
CN108344930A (en) * | 2018-01-31 | 2018-07-31 | 国家电网公司 | A kind of monitoring device and method of ring main unit temperature and shelf depreciation |
CN113030662A (en) * | 2021-03-08 | 2021-06-25 | 天津大学 | Multi-sensor polymer insulating material partial discharge erosion tolerance measuring device and method |
CN113820452A (en) * | 2021-08-18 | 2021-12-21 | 深圳供电局有限公司 | Method, device and system for evaluating insulation degradation gas of switch cabinet |
Citations (4)
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EP2310865B1 (en) * | 2008-08-07 | 2012-02-22 | Siemens Aktiengesellschaft | Method for monitoring the operating state of an electric machine, arrangement having an electric machine, and infrared sensor |
CN103105557A (en) * | 2013-01-29 | 2013-05-15 | 温州电力局 | Method and device of high-tension switch cabinet multi-fault diagnosis |
CN103149324A (en) * | 2013-01-29 | 2013-06-12 | 温州电力局 | Method and device for high-tension switch cabinet gas detection |
CN203071482U (en) * | 2013-01-29 | 2013-07-17 | 温州电力局 | High-tension switchgear having gas analysis function |
-
2013
- 2013-08-27 CN CN2013103793091A patent/CN103412247A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2310865B1 (en) * | 2008-08-07 | 2012-02-22 | Siemens Aktiengesellschaft | Method for monitoring the operating state of an electric machine, arrangement having an electric machine, and infrared sensor |
CN103105557A (en) * | 2013-01-29 | 2013-05-15 | 温州电力局 | Method and device of high-tension switch cabinet multi-fault diagnosis |
CN103149324A (en) * | 2013-01-29 | 2013-06-12 | 温州电力局 | Method and device for high-tension switch cabinet gas detection |
CN203071482U (en) * | 2013-01-29 | 2013-07-17 | 温州电力局 | High-tension switchgear having gas analysis function |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104502545A (en) * | 2015-01-12 | 2015-04-08 | 国网上海市电力公司 | Gas exhausting type ozone detector used for ring main unit |
CN104502547A (en) * | 2015-01-12 | 2015-04-08 | 国网上海市电力公司 | Detection method for ring main unit ozone detector |
CN105759184A (en) * | 2016-02-22 | 2016-07-13 | 成都振中电气有限公司 | Transformer partial discharge detection system |
CN106501692A (en) * | 2016-11-17 | 2017-03-15 | 国网湖北省电力公司咸宁供电公司 | A kind of power distribution automation ring main unit partial discharge monitoring method and system |
CN108344930A (en) * | 2018-01-31 | 2018-07-31 | 国家电网公司 | A kind of monitoring device and method of ring main unit temperature and shelf depreciation |
CN108344930B (en) * | 2018-01-31 | 2020-03-17 | 国家电网公司 | Device and method for monitoring temperature and partial discharge of ring main unit |
CN113030662A (en) * | 2021-03-08 | 2021-06-25 | 天津大学 | Multi-sensor polymer insulating material partial discharge erosion tolerance measuring device and method |
CN113820452A (en) * | 2021-08-18 | 2021-12-21 | 深圳供电局有限公司 | Method, device and system for evaluating insulation degradation gas of switch cabinet |
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Application publication date: 20131127 |