CN104215887A - Portable partial discharge detector - Google Patents

Portable partial discharge detector Download PDF

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Publication number
CN104215887A
CN104215887A CN201410442994.2A CN201410442994A CN104215887A CN 104215887 A CN104215887 A CN 104215887A CN 201410442994 A CN201410442994 A CN 201410442994A CN 104215887 A CN104215887 A CN 104215887A
Authority
CN
China
Prior art keywords
partial discharge
unit
signal
discharge detector
portable partial
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
CN201410442994.2A
Other languages
Chinese (zh)
Inventor
张阔
赵清军
张涛
孟潞
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.)
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Tianjin 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 State Grid Corp of China SGCC, State Grid Tianjin Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410442994.2A priority Critical patent/CN104215887A/en
Publication of CN104215887A publication Critical patent/CN104215887A/en
Pending legal-status Critical Current

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Abstract

A portable partial discharge detector comprises an ultrahigh-frequency sensor, a data acquisition unit and a data analysis and storage unit. An input end of the data acquisition unit is connected with the ultrahigh-frequency sensor, an output end of the data acquisition unit is connected with the data analysis and storage unit, and an output end of the data analysis and storage unit outputs equipment status signals. The portable partial discharge detector has the advantages that by means of detection of partial discharge signals of power distribution equipment through ultrahigh frequency, external interference signals are greatly reduced, and reliability and sensibility in partial discharge detection are improved; by means of real-time acquisition of the partial discharge signals and timely judgment of operation conditions of the power distribution equipment, convenience is provided for finding faults of the power distribution equipment, and reliability in power supply is improved; by means of measurement of electrified operation conditions of the power distribution equipment, halt time of power equipment is shortened, and faults of power equipment can be prevented in advance. The portable partial discharge detector has the advantages of portability, easiness in measurement, simplicity in operation and accuracy and reliability of measuring results.

Description

A kind of Portable partial discharge detector
Technical field
The invention belongs to power equipment detection technique field, particularly relate to a kind of Portable partial discharge detector.
Background technology
Along with the long-play of power equipment, the defect that the insulated part of the electrical equipment such as cable, switch cubicle occurs or deteriorated, conductive connection part divide loose contact all can make power system security be on the hazard, because the preventive trial cycle is longer, therefore be difficult to the insulation fault that discovery occurs between twice preventive trial, owing to may producing electric discharge phenomena latent period in accident, therefore can be by the monitoring of shelf depreciation is obtained to relevant information.Partial discharge detector is in the market mainly used in the partial discharge monitoring of GIS, transformer, has that cost is high, volume is large, carry the shortcomings such as inconvenient.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide be a kind ofly easy to carry, for measuring and diagnose the Portable partial discharge detector of the apparatus insulated situation of electricity distribution power.
In order to achieve the above object, Portable partial discharge detector provided by the invention comprises: superfrequency sensor, data acquisition unit and data analysis storage unit; Wherein: the input end of data acquisition unit is connected with superfrequency sensor, output terminal is connected with data analysis storage unit, the output terminal output device status signal of data analysis storage unit.
Described superfrequency sensor comprises UHF-antenna sensor, signal condition unit, power supply and electric quantity acquisition indicating member; Wherein: UHF-antenna sensor is connected with signal condition unit by concentric cable, power supply is connected with electric quantity acquisition indicating member with signal condition unit respectively; Signal condition unit output radiofrequency signal and rectified signal; Electric quantity acquisition indicating member output LED battery capacity indication signal.
Described signal condition unit comprises amplifying unit and detection unit, and the input end of amplifying unit is connected with UHF-antenna sensor, and its output terminal is connected with detection unit; Amplifying unit output terminal output radiofrequency signal, the output terminal output rectified signal of detection unit.
Described power supply is lithium battery.
Portable partial discharge detector provided by the invention is a kind of Portable partial discharge detector that is applied to distribution, it adopts superfrequency detection technique to judge power equipment shelf depreciation, uhf region is at 500M-1500MHz, thereby greatly reduce external interference signal, improved reliability and the sensitivity of Partial Discharge Detection.In addition, it has solved distribution switch office, cable intermediate joint portion discharge examination problem, uses this detecting instrument can fast, accurately judge switch cubicle, cable insulation situation, improves the safe reliability of breakdown repair efficiency and power distribution network.
Compared with prior art, beneficial effect of the present invention is:
Detect controller switching equipment local discharge signal by superfrequency, greatly reduced external interference signal, improved reliability and the sensitivity of Partial Discharge Detection.
Real-time Collection local discharge signal, judge controller switching equipment operation conditions in time, provide convenience for finding controller switching equipment fault, improved power supply reliability.
Measure by controller switching equipment charging operation situation, reduce power equipment power off time, can prevent in advance electrical equipment fault.
This detector is easy to carry, is easy to measure, and simple to operate, measurement result accurately and reliably.
Brief description of the drawings
Fig. 1 is the composition frame chart of superfrequency sensor in Portable partial discharge detector provided by the invention.
Fig. 2 is the composition frame chart of Portable partial discharge detector provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, Portable partial discharge detector provided by the invention is elaborated.
As shown in Figure 2, Portable partial discharge detector provided by the invention is mainly used in power distribution network power equipment Partial Discharge Detection, and it comprises superfrequency sensor 11, data acquisition unit 12 and data analysis storage unit 13; Wherein: the input end of data acquisition unit 12 is connected with superfrequency sensor 1, output terminal is connected with data analysis storage unit 13, the output terminal output device status signal of data analysis storage unit 13.
As shown in Figure 1, described superfrequency sensor 11 comprises UHF-antenna sensor 1, signal condition unit 2, power supply 3 and electric quantity acquisition indicating member 4; Wherein: UHF-antenna sensor 1 is connected with signal condition unit 2 by concentric cable, power supply 3 is connected with electric quantity acquisition indicating member 4 with signal condition unit 2 respectively; Radiofrequency signal and rectified signal are exported in signal condition unit 2; Electric quantity acquisition indicating member 4 is exported LED battery capacity indication signal.
Described signal condition unit 2 comprises amplifying unit and detection unit, and the input end of amplifying unit is connected with UHF-antenna sensor 1, and its output terminal is connected with detection unit; Amplifying unit output terminal output radiofrequency signal, the output terminal output rectified signal of detection unit.
Described power supply 3 is lithium battery.
Described electric quantity acquisition indicating member 4 gathers the information about power of battery by sensor, information is shown with LED lamp, can intuitively demonstrate the last electric weight of battery.The local discharge signal that described signal processing unit 2 is responded to UHF-antenna sensor 1 carries out amplification demodulator, gathers for subsequent acquisition unit.
Described data acquisition unit 12 converts digital signal to for the simulating signal that superfrequency sensor 11 is transmitted, and collection signal is sent to described data analysis storage unit 13.
The data that described data analysis storage unit 13 sends by reception data acquisition unit 12 judge that power equipment has or not discharge information, and by transmitted information storage.

Claims (4)

1. a Portable partial discharge detector, is characterized in that: described Portable partial discharge detector comprises: superfrequency sensor (11), data acquisition unit (12) and data analysis storage unit (13); Wherein: the input end of data acquisition unit (12) is connected with superfrequency sensor (1), output terminal is connected with data analysis storage unit (13), the output terminal output device status signal of data analysis storage unit (13).
2. Portable partial discharge detector according to claim 1, is characterized in that: described superfrequency sensor (11) comprises UHF-antenna sensor (1), signal condition unit (2), power supply (3) and electric quantity acquisition indicating member (4); Wherein: UHF-antenna sensor (1) is connected with signal condition unit (2) by concentric cable, power supply (3) is connected with electric quantity acquisition indicating member (4) with signal condition unit (2) respectively; Signal condition unit (2) output radiofrequency signal and rectified signal; Electric quantity acquisition indicating member (4) output LED battery capacity indication signal.
3. Portable partial discharge detector according to claim 2, it is characterized in that: described signal condition unit (2) comprises amplifying unit and detection unit, the input end of amplifying unit is connected with UHF-antenna sensor (1), and its output terminal is connected with detection unit; Amplifying unit output terminal output radiofrequency signal, the output terminal output rectified signal of detection unit.
4. Portable partial discharge detector according to claim 2, is characterized in that: described power supply (3) is lithium battery.
CN201410442994.2A 2014-09-02 2014-09-02 Portable partial discharge detector Pending CN104215887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410442994.2A CN104215887A (en) 2014-09-02 2014-09-02 Portable partial discharge detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410442994.2A CN104215887A (en) 2014-09-02 2014-09-02 Portable partial discharge detector

Publications (1)

Publication Number Publication Date
CN104215887A true CN104215887A (en) 2014-12-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410442994.2A Pending CN104215887A (en) 2014-09-02 2014-09-02 Portable partial discharge detector

Country Status (1)

Country Link
CN (1) CN104215887A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104865508A (en) * 2015-06-08 2015-08-26 中国科学院半导体研究所 Partial discharge recognition method based on data grouping quantification
CN105606974A (en) * 2016-03-04 2016-05-25 国网山东省电力公司平原县供电公司 Portable GIS partial discharge detection device
CN106019197A (en) * 2016-05-19 2016-10-12 国家电网公司 Detection device and method of signal conditioner
CN106168657A (en) * 2016-07-07 2016-11-30 国网北京市电力公司 Signal conditioner and detection method thereof and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2932403Y (en) * 2005-05-12 2007-08-08 周春利 HV combined electric appliance partial discharge detector
CN200969385Y (en) * 2006-10-23 2007-10-31 恩平市邦华电子有限公司 Electric quantity indicator for battery
CN102628916A (en) * 2012-04-12 2012-08-08 江苏省电力试验研究院有限公司 System for positioning local discharge of transformer on line based on ultrahigh-frequency signal
CN202471897U (en) * 2012-03-12 2012-10-03 浙江开关厂有限公司 Device for detecting and positioning local discharge fault of gas insulated switch
CN203387223U (en) * 2013-07-17 2014-01-08 张东 Electric quantity indicator for mobile power supply

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2932403Y (en) * 2005-05-12 2007-08-08 周春利 HV combined electric appliance partial discharge detector
CN200969385Y (en) * 2006-10-23 2007-10-31 恩平市邦华电子有限公司 Electric quantity indicator for battery
CN202471897U (en) * 2012-03-12 2012-10-03 浙江开关厂有限公司 Device for detecting and positioning local discharge fault of gas insulated switch
CN102628916A (en) * 2012-04-12 2012-08-08 江苏省电力试验研究院有限公司 System for positioning local discharge of transformer on line based on ultrahigh-frequency signal
CN203387223U (en) * 2013-07-17 2014-01-08 张东 Electric quantity indicator for mobile power supply

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104865508A (en) * 2015-06-08 2015-08-26 中国科学院半导体研究所 Partial discharge recognition method based on data grouping quantification
CN104865508B (en) * 2015-06-08 2017-09-29 中国科学院半导体研究所 The Recognition of Partial Discharge quantified based on packet
CN105606974A (en) * 2016-03-04 2016-05-25 国网山东省电力公司平原县供电公司 Portable GIS partial discharge detection device
CN105606974B (en) * 2016-03-04 2017-08-08 国网山东省电力公司平原县供电公司 A kind of portable GIS partial discharge detection means
CN106019197A (en) * 2016-05-19 2016-10-12 国家电网公司 Detection device and method of signal conditioner
CN106168657A (en) * 2016-07-07 2016-11-30 国网北京市电力公司 Signal conditioner and detection method thereof and device

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C06 Publication
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C10 Entry into substantive examination
C53 Correction of patent for invention or patent application
CB02 Change of applicant information

Address after: 300010 Tianjin city Hebei District Wujing Road No. 39

Applicant after: State Grid Corporation of China

Applicant after: State Grid Tianjin Electric Power Company

Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Applicant before: State Grid Corporation of China

Applicant before: State Grid Tianjin Electric Power Company

SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20141217