CN103412247A - Ring main unit partial discharge monitoring system - Google Patents

Ring main unit partial discharge monitoring system Download PDF

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Publication number
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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CN
China
Prior art keywords
unit
ring main
gas sampling
signal
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013103793091A
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Chinese (zh)
Inventor
李烽
王剑
黄安林
姚建歆
许楫
史华康
金琪
解蕾
杨妍婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI HUANRONG ELECTRIC POWER TECHNOLOGY EQUIPMENT Co Ltd
State Grid Corp of China SGCC
State Grid Shanghai Electric Power Co Ltd
Original Assignee
SHANGHAI HUANRONG ELECTRIC POWER TECHNOLOGY EQUIPMENT Co Ltd
State Grid Corp of China SGCC
State Grid Shanghai Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI HUANRONG ELECTRIC POWER TECHNOLOGY EQUIPMENT Co Ltd, State Grid Corp of China SGCC, State Grid Shanghai Electric Power Co Ltd filed Critical SHANGHAI HUANRONG ELECTRIC POWER TECHNOLOGY EQUIPMENT Co Ltd
Priority to CN2013103793091A priority Critical patent/CN103412247A/en
Publication of CN103412247A publication Critical patent/CN103412247A/en
Pending legal-status Critical Current

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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

A kind of ring main unit partial discharge monitoring system
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;
Variable valve 2 is installed on pump-line 1, for adjusting gas flow;
Pressure transducer 3 is installed on the pump-line 1 between variable valve 2 and gas sampling unit 4, and connects display unit 10, shows be used to gathering force value and passing to display unit 10; By variable valve 2 adjusting gas flows, and the mode of pressure transducer 3 induction pressures, guaranteed in pre-conditioned lower measurement ozone concentration value, greatly increased the accuracy of measuring;
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;
Temperature sensor 7 sample temperature signals 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;
Signal analysis unit 8 connects respectively AD conversion unit 6, data storage cell 9 and display unit 10, the digital signal received is carried out to calibration analyte, obtain corresponding ozone concentration value and temperature value, and flow to respectively data storage cell 9 storages and flow to display unit 10 demonstrations, thereby realize the monitoring to the ring main unit shelf depreciation.
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.
CN2013103793091A 2013-08-27 2013-08-27 Ring main unit partial discharge monitoring system Pending CN103412247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013103793091A CN103412247A (en) 2013-08-27 2013-08-27 Ring main unit partial discharge monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013103793091A CN103412247A (en) 2013-08-27 2013-08-27 Ring main unit partial discharge monitoring system

Publications (1)

Publication Number Publication Date
CN103412247A true CN103412247A (en) 2013-11-27

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CN2013103793091A Pending CN103412247A (en) 2013-08-27 2013-08-27 Ring main unit partial discharge monitoring system

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Cited By (7)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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