CN102624092A - Leakage current abnormal remote alarm device for lightning arrester of distribution transformer station zone - Google Patents

Leakage current abnormal remote alarm device for lightning arrester of distribution transformer station zone Download PDF

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Publication number
CN102624092A
CN102624092A CN2012100948999A CN201210094899A CN102624092A CN 102624092 A CN102624092 A CN 102624092A CN 2012100948999 A CN2012100948999 A CN 2012100948999A CN 201210094899 A CN201210094899 A CN 201210094899A CN 102624092 A CN102624092 A CN 102624092A
Authority
CN
China
Prior art keywords
circuit
leakage current
signal
signal data
arrester
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
CN2012100948999A
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Chinese (zh)
Inventor
陈家斌
张露江
季宏
陈蕾
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.)
Zhumadian Power Supply Co of Henan Electric Power Co
Original Assignee
Zhumadian Power Supply Co of Henan Electric Power Co
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 Zhumadian Power Supply Co of Henan Electric Power Co filed Critical Zhumadian Power Supply Co of Henan Electric Power Co
Priority to CN2012100948999A priority Critical patent/CN102624092A/en
Publication of CN102624092A publication Critical patent/CN102624092A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/7853
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

The invention discloses a leakage current abnormal remote alarm device for a lightning arrester of a distribution transformer station zone, which comprises a leakage current signal data acquisition circuit, a signal data calculating and judging circuit and a remote alarm communication circuit, wherein the leakage current signal data acquisition circuit is used for acquiring leakage current signal data from a leakage current on-line monitoring circuit of the lightning arrester; the signal data calculating and judging circuit is used for calculating a current signal acquired by the leakage current signal data acquisition circuit, judging whether a leakage current of the lightning arrester exceeds a set value and transmitting a signal of showing that the leakage current exceeds the set value to the remote alarm communication circuit; and the remote alarm communication circuit is used for transmitting the signal of showing that the leakage current of the lightning arrester exceeds the set value, which is output by the signal data calculating and judging circuit, to a distribution network power supply intelligent control center and/or a mobile phone of a duty electrician. According to the invention, the leakage current of the lightning arrester of the 10 to 12kV distribution transformer station zone of a power system can be monitored in real time, the labor intensity of workers is reduced, the normal power supply of a user is ensured, the power supply reliability is improved and the fault rate of power supply equipment is reduced.

Description

A kind of distribution transformer platform district unusual distant place of leakage current of an arrester warning device
Technical field
The present invention relates to a kind of distant place warning device, relate in particular to a kind of unusual distant place of leakage current of an arrester warning device that is applicable to electric power system 10 ~ 20kV distribution transformer platform district.
Background technology
At present, the intelligent grid construction is carried out in China's electric power system comprehensively, and full electric network is carried out Based Intelligent Control, intelligent management and intellectual analysis.Wherein, for the unusual distant place of the leakage current of an arrester alarm technique research in electric power system 10 ~ 20kV distribution transformer platform district, also be an important part in the intelligent popularization and application of electrical network.
China can't realize real-time monitoring at the leakage current of an arrester that install in electric power system 10 ~ 20kV distribution transformer platform district of operation.When lightning arrester breaks down, as leakage current taking place when unusual, only reliable power supply operator on duty goes to carry out equipment inspection, after the discovery lightning arrester breaks down, keeps in repair again.The method of this artificial maintenance causes the repair time long, and intensity of workers is big, has influence on user's normal power supply simultaneously, has reduced power supply reliability, has increased the spoilage of power supply unit.
Summary of the invention
The purpose of this invention is to provide a kind of distribution transformer platform district unusual distant place of leakage current of an arrester warning device; Can realize the leakage current of electric power system 10 ~ 20kV distribution transformer platform district lightning arrester is monitored in real time; Reduce intensity of workers; Guarantee user's normal power supply, improve power supply reliability, reduce the power supply unit spoilage.
The present invention adopts following technical proposals:
A kind of distribution transformer platform district unusual distant place of leakage current of an arrester warning device comprises the leakage current signal data acquisition circuit, is used for gathering the leakage current signal data from leakage current of an arrester on-line monitoring circuit; Signal data calculates decision circuitry, is used for the current signal that the leakage current signal data acquisition circuit collects is calculated, and judges that whether leakage current of an arrester surpasses set point, and will be sent to distant place alarm communication circuit above duty setting signal; Distant place alarm communication circuit is used for that the leakage current of an arrester that signal data calculates decision circuitry output is surpassed duty setting signal and is sent to distribution supply intelligent control centre and/or shift electrician's mobile phone.
Described leakage current signal data acquisition circuit comprises the leakage current monitor circuit; The input of leakage current monitor circuit connects lightning arrester body lower end terminals; The earth terminal of leakage current monitor circuit connects earthing of lightening arrester, and the output of leakage current monitor circuit connects the input that signal data calculates decision circuitry.
Described signal data calculates decision circuitry and comprises the A/D change-over circuit, calculates decision circuitry, executive circuit; The signal input part of said A/D change-over circuit connects the output of leakage current monitor circuit; The signal output part of A/D change-over circuit connects the signal input part that calculates decision circuitry, and the signal output part that calculates decision circuitry connects the signal input part of executive circuit.
Described executive circuit comprises CPU, relay drive circuit and relay; The input of CPU connects the signal output part that calculates decision circuitry; The output of CPU is through relay drive circuit control connection relay coil, and the normally opened contact of relay is connected on the alarm communication circuit of a distant place.
Described distant place alarm communication circuit comprises optical fibre communication cable circuit and/or radio communication circuit.
Described optical fibre communication cable circuit comprises fiber optic cables and the optical transmission circuit that is used for the signal of telecommunication is changed into light signal; The normally opened contact of described relay is connected on the power circuit of optical transmission circuit; The output of optical transmission circuit connects the input of fiber optic cables, and the output of fiber optic cables connects distribution supply intelligent control centre.
Described radio communication circuit comprises signal input circuit, coding circuit and radiating circuit; The normally opened contact of described relay is connected on the power circuit of signal input circuit; The output of signal input circuit connects the input of coding circuit; The output of coding circuit connects the input of radiating circuit, radiating circuit and distribution supply intelligent control centre and/or shift electrician's mobile phone wireless communication coupling.
The present invention can monitor the leakage current of electric power system 10 ~ 20kV distribution transformer platform district lightning arrester in real time; When lightning arrester generation leakage current is unusual, can in time notify the staff; Reduce intensity of workers; Guarantee user's normal power supply, improve power supply reliability, reduce the power supply unit spoilage.
Description of drawings
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is the theory diagram of leakage current signal data acquisition circuit according to the invention;
Fig. 3 is the theory diagram that signal data according to the invention calculates decision circuitry;
Fig. 4 is the theory diagram of optical fibre communication cable circuit according to the invention;
Fig. 5 is the theory diagram of radio communication circuit according to the invention.
Embodiment
Extremely shown in Figure 5 like Fig. 1; The present invention includes leakage current signal data acquisition circuit, signal data calculating decision circuitry and distant place alarm communication circuit; The output of leakage current signal data acquisition circuit connects the input that signal data calculates decision circuitry; Signal data calculates the input of the output connection distant place alarm communication circuit of decision circuitry, and distant place alarm communication circuit connects distribution supply intelligent control centre and/or shift electrician's mobile phone.
Described leakage current signal data acquisition circuit is used for gathering the leakage current signal data from leakage current of an arrester on-line monitoring circuit.The leakage current signal data acquisition circuit comprises the leakage current monitor circuit; The input of leakage current monitor circuit connects lightning arrester body lower end terminals; Lightning arrester body upper end terminals connection line phase line; The earth terminal of leakage current monitor circuit connects earthing of lightening arrester, and the output of leakage current monitor circuit connects the input that signal data calculates decision circuitry.
Described signal data calculates decision circuitry, is used for the current signal that the leakage current signal data acquisition circuit collects is calculated, and judges that whether leakage current of an arrester surpasses set point, and will be sent to distant place alarm communication circuit above duty setting signal.Signal data calculates decision circuitry and comprises the A/D change-over circuit, calculates decision circuitry, executive circuit; The signal input part of said A/D change-over circuit connects the output of leakage current monitor circuit; The signal output part of A/D change-over circuit connects the signal input part that calculates decision circuitry, and the signal output part that calculates decision circuitry connects the signal input part of executive circuit.Described executive circuit comprises CPU, relay drive circuit and relay; The input of CPU connects the signal output part that calculates decision circuitry; The output of CPU is through relay drive circuit control connection relay coil, and the normally opened contact of relay is connected on the alarm communication circuit of a distant place.CPU can adopt single-chip microcomputer.
Described distant place alarm communication circuit is used for that the leakage current of an arrester that signal data calculates decision circuitry output is surpassed duty setting signal and is sent to distribution supply intelligent control centre or shift electrician's mobile phone.Distant place alarm communication circuit can adopt optical fibre communication cable circuit and/or radio communication circuit.The optical fibre communication cable circuit comprises fiber optic cables and the optical transmission circuit that is used for the signal of telecommunication is changed into light signal; The normally opened contact of described relay is connected on the power circuit of optical transmission circuit; The output of optical transmission circuit connects the input of fiber optic cables, and the output of fiber optic cables connects distribution supply intelligent control centre.Radio communication circuit comprises signal input circuit, coding circuit and radiating circuit; The normally opened contact of described relay is connected on the power circuit of signal input circuit; The output of signal input circuit connects the input of coding circuit; The output of coding circuit connects the input of radiating circuit, radiating circuit and distribution supply intelligent control centre and/or shift electrician's mobile phone wireless communication coupling.
The present invention is when work; The leakage current monitor circuit is installed from lightning arrester body and is gathered the leakage current signal data the circuit; And the leakage current signal data that collect are sent to signal data calculate decision circuitry; Signal data calculates decision circuitry and judges whether leakage current of an arrester surpasses set point, if leakage current of an arrester surpasses set point, CPU is through relay drive circuit control relay coil electricity; The normally opened contact of relay is closed; The power circuit of optical transmission circuit and/or the power circuit conducting of signal input circuit in the alarm communication circuit of a distant place at this moment, alarm signal can be sent to distribution supply intelligent control centre and/or shift electrician's mobile phone through fiber optic cables and/or radiating circuit, and the prompting staff keeps in repair.
Above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although with reference to preferred embodiment the present invention has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can specific embodiments of the invention make amendment or the part technical characterictic is equal to replacement; And not breaking away from the spirit of technical scheme of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.

Claims (7)

1. a distribution transformer platform district unusual distant place of leakage current of an arrester warning device is characterized in that: comprise the leakage current signal data acquisition circuit, be used for gathering the leakage current signal data from leakage current of an arrester on-line monitoring circuit; Signal data calculates decision circuitry, is used for the current signal that the leakage current signal data acquisition circuit collects is calculated, and judges that whether leakage current of an arrester surpasses set point, and will be sent to distant place alarm communication circuit above duty setting signal; Distant place alarm communication circuit is used for that the leakage current of an arrester that signal data calculates decision circuitry output is surpassed duty setting signal and is sent to distribution supply intelligent control centre and/or shift electrician's mobile phone.
2. the distribution transformer platform according to claim 1 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described leakage current signal data acquisition circuit comprises the leakage current monitor circuit; The input of leakage current monitor circuit connects lightning arrester body lower end terminals; The earth terminal of leakage current monitor circuit connects earthing of lightening arrester, and the output of leakage current monitor circuit connects the input that signal data calculates decision circuitry.
3. the distribution transformer platform according to claim 2 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described signal data calculates decision circuitry and comprises the A/D change-over circuit, calculates decision circuitry, executive circuit; The signal input part of said A/D change-over circuit connects the output of leakage current monitor circuit; The signal output part of A/D change-over circuit connects the signal input part that calculates decision circuitry, and the signal output part that calculates decision circuitry connects the signal input part of executive circuit.
4. the distribution transformer platform according to claim 3 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described executive circuit comprises CPU, relay drive circuit and relay; The input of CPU connects the signal output part that calculates decision circuitry; The output of CPU is through relay drive circuit control connection relay coil, and the normally opened contact of relay is connected on the alarm communication circuit of a distant place.
5. the distribution transformer platform according to claim 4 district unusual distant place of leakage current of an arrester warning device is characterized in that: described distant place alarm communication circuit comprises optical fibre communication cable circuit and/or radio communication circuit.
6. the distribution transformer platform according to claim 5 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described optical fibre communication cable circuit comprises fiber optic cables and the optical transmission circuit that is used for the signal of telecommunication is changed into light signal; The normally opened contact of described relay is connected on the power circuit of optical transmission circuit; The output of optical transmission circuit connects the input of fiber optic cables, and the output of fiber optic cables connects distribution supply intelligent control centre.
7. the distribution transformer platform according to claim 5 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described radio communication circuit comprises signal input circuit, coding circuit and radiating circuit; The normally opened contact of described relay is connected on the power circuit of signal input circuit; The output of signal input circuit connects the input of coding circuit; The output of coding circuit connects the input of radiating circuit, radiating circuit and distribution supply intelligent control centre and/or shift electrician's mobile phone wireless communication coupling.
CN2012100948999A 2012-04-01 2012-04-01 Leakage current abnormal remote alarm device for lightning arrester of distribution transformer station zone Pending CN102624092A (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102868229A (en) * 2012-10-17 2013-01-09 河南省电力公司驻马店供电公司 Intelligent management command system for state maintenance of power distribution network equipment
CN102868230A (en) * 2012-10-17 2013-01-09 河南省电力公司驻马店供电公司 Intelligent managing device for condition based maintenance of 10-20kv transformer
CN103051057A (en) * 2012-12-04 2013-04-17 河南省电力公司驻马店供电公司 Transformer equipment state overhaul intelligent management monitoring system
CN103050896A (en) * 2012-12-04 2013-04-17 河南省电力公司驻马店供电公司 Intelligent management device for condition based maintenance of electric transformer
CN103759808A (en) * 2014-02-20 2014-04-30 重庆大学 Noise monitoring and early warning signal transmitting system of transformer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04240995A (en) * 1991-01-25 1992-08-28 Fujitsu Ltd Remote power supply control system
CN2445334Y (en) * 2000-09-29 2001-08-29 常州太平洋自动化技术有限公司 On-line monitoring device for current leakage of lightning protector
CN201637789U (en) * 2009-11-09 2010-11-17 南京欧亚大陆电气设备有限公司 On-line monitor tele-transferring device for arrester and monitoring system thereof
CN201985623U (en) * 2011-02-07 2011-09-21 陈家斌 Device for performing remote alarm to abnormal running of distribution transformer
CN202602369U (en) * 2012-04-01 2012-12-12 河南省电力公司驻马店供电公司 Leakage current abnormity remote alarm device of distribution transformer station area arrester

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04240995A (en) * 1991-01-25 1992-08-28 Fujitsu Ltd Remote power supply control system
CN2445334Y (en) * 2000-09-29 2001-08-29 常州太平洋自动化技术有限公司 On-line monitoring device for current leakage of lightning protector
CN201637789U (en) * 2009-11-09 2010-11-17 南京欧亚大陆电气设备有限公司 On-line monitor tele-transferring device for arrester and monitoring system thereof
CN201985623U (en) * 2011-02-07 2011-09-21 陈家斌 Device for performing remote alarm to abnormal running of distribution transformer
CN202602369U (en) * 2012-04-01 2012-12-12 河南省电力公司驻马店供电公司 Leakage current abnormity remote alarm device of distribution transformer station area arrester

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102868229A (en) * 2012-10-17 2013-01-09 河南省电力公司驻马店供电公司 Intelligent management command system for state maintenance of power distribution network equipment
CN102868230A (en) * 2012-10-17 2013-01-09 河南省电力公司驻马店供电公司 Intelligent managing device for condition based maintenance of 10-20kv transformer
CN103051057A (en) * 2012-12-04 2013-04-17 河南省电力公司驻马店供电公司 Transformer equipment state overhaul intelligent management monitoring system
CN103050896A (en) * 2012-12-04 2013-04-17 河南省电力公司驻马店供电公司 Intelligent management device for condition based maintenance of electric transformer
CN103051057B (en) * 2012-12-04 2015-08-05 河南省电力公司驻马店供电公司 Condition-based Maintenance of Substation Equipment intelligent management supervisory control system
CN103050896B (en) * 2012-12-04 2016-06-29 河南省电力公司驻马店供电公司 Power Transformer Condition maintenance intelligent management apapratus
CN103759808A (en) * 2014-02-20 2014-04-30 重庆大学 Noise monitoring and early warning signal transmitting system of transformer
CN103759808B (en) * 2014-02-20 2017-07-14 重庆大学 Transformer noise is monitored and pre-warning signal emission system

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Application publication date: 20120801