CN105865532A - Monitoring and alarming system for transformer substation secondary system TMOV lightning arrester main board - Google Patents

Monitoring and alarming system for transformer substation secondary system TMOV lightning arrester main board Download PDF

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Publication number
CN105865532A
CN105865532A CN201610396640.8A CN201610396640A CN105865532A CN 105865532 A CN105865532 A CN 105865532A CN 201610396640 A CN201610396640 A CN 201610396640A CN 105865532 A CN105865532 A CN 105865532A
Authority
CN
China
Prior art keywords
tmov
lightning
protection device
monitoring unit
monitoring
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
CN201610396640.8A
Other languages
Chinese (zh)
Inventor
毛先胤
曾华荣
曾中海
刘华麟
李巍
古洪涛
左华杰
张迅
牛唯
彭文星
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.)
SHENZHEN LEBOS TECHNOLOGY Co Ltd
Electric Power Research Institute of Guizhou Power Grid Co Ltd
Original Assignee
SHENZHEN LEBOS TECHNOLOGY Co Ltd
Electric Power Research Institute of Guizhou Power Grid 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 SHENZHEN LEBOS TECHNOLOGY Co Ltd, Electric Power Research Institute of Guizhou Power Grid Co Ltd filed Critical SHENZHEN LEBOS TECHNOLOGY Co Ltd
Priority to CN201610396640.8A priority Critical patent/CN105865532A/en
Publication of CN105865532A publication Critical patent/CN105865532A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature

Abstract

The invention discloses a monitoring and alarming system for a transformer substation secondary system TMOV lightning arrester main board. The monitoring and alarming system for the transformer substation secondary system TMOV lightning arrester main board comprises the TMOV lightning arrester main board, wherein the TMOV lightning arrester main board is connected with a TMOV state monitoring unit, a lightning current monitoring unit and a temperature monitoring unit by wires, the TMOV state monitoring unit, the lightning current monitoring unit and the temperature monitoring unit are connected with a micro-control unit by the wires, and the micro-control unit is connected with an LCD and a buzzer by wires. The monitoring and alarming system for the transformer substation secondary system TMOV lightning arrester main board has functions of real-time monitoring and alarming, and the like, solves the technical problems that a TMOV lightning arrester module in the prior art does not have an on-line monitoring function, cannot anticipate accidents and working states of a lightning arrester, cannot ensure the safe operation of a device and the like.

Description

A kind of transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system
Technical field
The invention belongs to transformer station secondary system power circuit lightning protection device monitoring technology, particularly relate to a kind of transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system.
Background technology
Due in the power lightning protection technology of transformer station secondary system, the failure state of tradition lightning protection device shows or indicating means mostly is the machine or locally displayed, the running status of thunder resisting equipment, life situations, degradation mode all cannot be assessed and early warning, greatly increase accident rate and maintenance difficulties;Due to domestic lightning protection device research and development, produce, test, the technique such as installation is compared external lightning protection device and be there is quality inferior position and technological deficiency, makes lightning protection device become a potential potential faults in transformer station secondary system.
At present after transformer station secondary system power supply TMOV lightning-protection module installation the most no matter, also cannot the duty of early warning TMOV lightning-protection module and protection level, until after lightning protection device damages or causes the system failure, just finding lightning protection device damage.Data cannot be gathered, it is impossible to the determination for the Lightning Strike Risk Evaluation of transformer station and the Lighting protection level of transformer station secondary system equipment provides foundation.Due to without lightning protection device state on_line monitoring function, it is impossible to anticipation accident and assessment lightning protection device duty, it is impossible to ensure the safe operation of equipment.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system, on-line monitoring function is not had with the TMOV lightning-protection module of solution prior art, cannot anticipation accident and assessment lightning protection device duty, it is impossible to ensure the technical problem such as safe operation of equipment.
Technical solution of the present invention:
A kind of transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system, it includes TMOV lightning protection device mainboard, TMOV lightning protection device mainboard is connected with TMOV Condition Monitoring Unit, lightning current monitoring means and temperature monitoring unit wire, TMOV Condition Monitoring Unit, lightning current monitoring means and temperature monitoring unit are connected with micro-control unit wire, and micro-control unit is connected with LCD and buzzer wire.
Micro-control unit is connected with RS485 interface, LED and button wire.
TMOV Condition Monitoring Unit is provided on-off model by an overtemperature protection Thermal Cutoffs, and the Thermal Cutoffs serial or parallel connection of each TMOV lightning-protection module is formed an on-off model dry contact.
The integrating circuit that the current transformer without magnetic core that lightning current monitoring means is made up of polyamide skeleton and enamel wire coil, spacing piezoresistor, rectification, electric capacity, resistance form forms.
Beneficial effects of the present invention:
Feature of the present invention:
The status monitoring signal of TMOV lightning-protection module output and temperature monitoring signal and lightning current signals can be acquired and process by the present invention, and intensity of lightning, thunder and lightning number of times, thunder and lightning time of origin, security protection number of days, TMOV malfunction are recorded, monitored;
Condition Monitoring Unit of the present invention is provided on-off model by an overtemperature protection Thermal Cutoffs; the Thermal Cutoffs serial or parallel connection of each TMOV lightning-protection module is formed an on-off model dry contact; when TMOV major loop Temperature protection disconnects and losing efficacy; this Thermal Cutoffs can synchronize to disconnect and provide alarm signal to be detected break-make by MCU; during disconnection, function links this on-off model of the red sudden strain of a muscle of LED with voice guard, remote signalling relay, ECU, LCD show etc., and protection number of days stops;If change occurs in this switching signal, related circuit and function will change, indicate, and sends fault message by RS-485 interface to backstage;
The integrating circuit that the current transformer without magnetic core that lightning current monitoring means of the present invention is made up of polyamide skeleton and enamel wire coil, spacing piezoresistor, rectification, electric capacity, resistance etc. form is sampled, comprise the circuit such as Anti-surging, rectification, dividing potential drop sampling, electric discharge.The current signal collected by current transformer by the size of current transformer detection thunder and lightning is converted into voltage signal supply ECU to carry out processing and computing, and is shown in exercisable LCD screen.
The present invention has the functions such as real-time monitoring warning, and the TMOV lightning-protection module solving prior art does not has on-line monitoring function, it is impossible to anticipation accident and assessment lightning protection device duty, it is impossible to the technical problems such as the safe operation of guarantee equipment.
Accompanying drawing illustrates:
Fig. 1 is present configuration schematic diagram.
Detailed description of the invention:
A kind of transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system, it includes TMOV lightning protection device mainboard, TMOV lightning protection device mainboard is connected with TMOV Condition Monitoring Unit, lightning current monitoring means and temperature monitoring unit wire, TMOV Condition Monitoring Unit, lightning current monitoring means and temperature monitoring unit are connected with micro-control unit wire, and micro-control unit is connected with LCD and buzzer wire.
Micro-control unit is connected with RS485 interface, LED and button wire.
Power subsystem provides power supply for each module.Power subsystem is connected with microcontroller and TMOV lightning protection device mainboard wire.
TMOV Condition Monitoring Unit is provided on-off model by an overtemperature protection Thermal Cutoffs, and the Thermal Cutoffs serial or parallel connection of each TMOV lightning-protection module is formed an on-off model dry contact.
The integrating circuit that the current transformer without magnetic core that lightning current monitoring means is made up of polyamide skeleton and enamel wire coil, spacing piezoresistor, rectification, electric capacity, resistance form forms.
The present invention can to TMOV lightning-protection module output status monitoring signal and temperature monitoring signal and lightning current signals is acquired and operation result of measurement, to intensity of lightning, how many kilo-amperes, thunder and lightning number of times, thunder and lightning time of origin, security protection number of days, TMOV malfunction carry out recording, monitoring;
TMOV Condition Monitoring Unit is provided on-off model by an overtemperature protection Thermal Cutoffs; the Thermal Cutoffs serial or parallel connection of each TMOV lightning-protection module is formed an on-off model dry contact; when TMOV major loop Temperature protection disconnects and losing efficacy; this Thermal Cutoffs can synchronize to disconnect and provide alarm signal to be detected break-make by micro-control unit; during disconnection, function links this on-off model of the red sudden strain of a muscle of LED with voice guard, remote signalling relay, ECU, LCD show etc., and protection number of days stops.If change occurs in this switching signal, related circuit and function will change, indicate, and sends DTC by RS-485 interface to backstage.
The integrating circuit that the current transformer without magnetic core that lightning current monitoring means is made up of polyamide skeleton and enamel wire coil, spacing piezoresistor, rectification, electric capacity, resistance etc. form is sampled, and comprises the circuit such as Anti-surging, rectification, dividing potential drop sampling, electric discharge.The current signal collected by current transformer by the size of current transformer detection thunder and lightning is converted into voltage signal supply micro-control unit to carry out processing and computing, and is shown in exercisable LCD screen.

Claims (4)

1. a transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system, it includes TMOV lightning protection device mainboard, it is characterized in that: TMOV lightning protection device mainboard is connected with TMOV Condition Monitoring Unit, lightning current monitoring means and temperature monitoring unit wire, TMOV Condition Monitoring Unit, lightning current monitoring means and temperature monitoring unit are connected with micro-control unit wire, and micro-control unit is connected with LCD and buzzer wire.
A kind of transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system the most according to claim 1, it is characterised in that: micro-control unit is connected with RS485 interface, LED and button wire.
A kind of transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system the most according to claim 1; it is characterized in that: TMOV Condition Monitoring Unit is provided on-off model by an overtemperature protection Thermal Cutoffs, the Thermal Cutoffs serial or parallel connection of each TMOV lightning-protection module is formed an on-off model dry contact.
A kind of transformer station secondary system TMOV lightning protection device mainboard monitor and alarm system the most according to claim 1, it is characterised in that: the integrating circuit that the current transformer without magnetic core that lightning current monitoring means is made up of polyamide skeleton and enamel wire coil, spacing piezoresistor, rectification, electric capacity, resistance form forms.
CN201610396640.8A 2016-06-07 2016-06-07 Monitoring and alarming system for transformer substation secondary system TMOV lightning arrester main board Pending CN105865532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610396640.8A CN105865532A (en) 2016-06-07 2016-06-07 Monitoring and alarming system for transformer substation secondary system TMOV lightning arrester main board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610396640.8A CN105865532A (en) 2016-06-07 2016-06-07 Monitoring and alarming system for transformer substation secondary system TMOV lightning arrester main board

Publications (1)

Publication Number Publication Date
CN105865532A true CN105865532A (en) 2016-08-17

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CN (1) CN105865532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110417247A (en) * 2019-07-12 2019-11-05 深圳市微风通讯技术有限公司 Faraday's lightning protection power source protective module

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2088753U (en) * 1991-04-10 1991-11-13 徐国治 Electric motor protector
CN201373895Y (en) * 2009-03-09 2009-12-30 浙江纪元电气集团有限公司 Online monitoring device of zinc oxide arrester (MOA)
CN201555911U (en) * 2009-11-16 2010-08-18 山东电力设备厂 On-line monitoring device of intelligent arrester
CN201918722U (en) * 2010-12-22 2011-08-03 上海雷迅防雷技术有限公司 Intelligent surge protection device with temperature monitoring function
CN202471845U (en) * 2011-12-07 2012-10-03 宜阳县电业局 Lightning arrester remote on-line monitoring device
CN203310902U (en) * 2013-06-08 2013-11-27 安顺供电局 Overvoltage surge current tester for secondary system of transformer station
CN203536951U (en) * 2013-09-25 2014-04-09 山东玛斯特电气有限公司 Monitoring-used surge protector lightening failure indication device
JP2014176240A (en) * 2013-03-11 2014-09-22 Toshiba Corp Arrestor monitoring system
CN104122478A (en) * 2014-08-11 2014-10-29 海南电力技术研究院 Lightning arrester state diagnosis system based on online detection of impact action and leakage current
CN104698311A (en) * 2015-02-25 2015-06-10 中国南方电网有限责任公司超高压输电公司检修试验中心 System and method for electrically detecting DC arrester of DC circuit
CN204666751U (en) * 2015-06-09 2015-09-23 扬州市气象局 A kind of Zinc-Oxide Arrester on-Line Monitor Device based on dsp chip
CN205940616U (en) * 2016-06-07 2017-02-08 贵州电网有限责任公司电力科学研究院 Secondary system TMOV of transformer substation lightning protection device mainboard monitoring alarm device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2088753U (en) * 1991-04-10 1991-11-13 徐国治 Electric motor protector
CN201373895Y (en) * 2009-03-09 2009-12-30 浙江纪元电气集团有限公司 Online monitoring device of zinc oxide arrester (MOA)
CN201555911U (en) * 2009-11-16 2010-08-18 山东电力设备厂 On-line monitoring device of intelligent arrester
CN201918722U (en) * 2010-12-22 2011-08-03 上海雷迅防雷技术有限公司 Intelligent surge protection device with temperature monitoring function
CN202471845U (en) * 2011-12-07 2012-10-03 宜阳县电业局 Lightning arrester remote on-line monitoring device
JP2014176240A (en) * 2013-03-11 2014-09-22 Toshiba Corp Arrestor monitoring system
CN203310902U (en) * 2013-06-08 2013-11-27 安顺供电局 Overvoltage surge current tester for secondary system of transformer station
CN203536951U (en) * 2013-09-25 2014-04-09 山东玛斯特电气有限公司 Monitoring-used surge protector lightening failure indication device
CN104122478A (en) * 2014-08-11 2014-10-29 海南电力技术研究院 Lightning arrester state diagnosis system based on online detection of impact action and leakage current
CN104698311A (en) * 2015-02-25 2015-06-10 中国南方电网有限责任公司超高压输电公司检修试验中心 System and method for electrically detecting DC arrester of DC circuit
CN204666751U (en) * 2015-06-09 2015-09-23 扬州市气象局 A kind of Zinc-Oxide Arrester on-Line Monitor Device based on dsp chip
CN205940616U (en) * 2016-06-07 2017-02-08 贵州电网有限责任公司电力科学研究院 Secondary system TMOV of transformer substation lightning protection device mainboard monitoring alarm device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110417247A (en) * 2019-07-12 2019-11-05 深圳市微风通讯技术有限公司 Faraday's lightning protection power source protective module

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Application publication date: 20160817