CN103913658A - Electrical equipment failure real-time monitor system - Google Patents
Electrical equipment failure real-time monitor system Download PDFInfo
- Publication number
- CN103913658A CN103913658A CN201410122354.3A CN201410122354A CN103913658A CN 103913658 A CN103913658 A CN 103913658A CN 201410122354 A CN201410122354 A CN 201410122354A CN 103913658 A CN103913658 A CN 103913658A
- Authority
- CN
- China
- Prior art keywords
- circuit
- electric
- electrical equipment
- magnetic field
- microprocessor
- 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
Links
Abstract
An electrical equipment failure real-time monitor system based on electromagnetic field detection analysis is suitable for electrical equipment failure detection and comprises a current sensor, a voltage sensor, a magnetic field detection circuit, an electric field detection circuit, a microprocessor, a displayer, an alarm circuit, a communication circuit and a monitor terminal. The output of the current sensor, the output of the voltage sensor and the output of the magnetic field detection circuit are connected with the input end of the microprocessor, and the hidden failure danger of electrical equipment is judged comprehensively through power supply currents, voltages and generated magnetic field signals of the electrical equipment. The electrical equipment failure real-time monitor system can monitor and find the bursting electrical failure of the electrical equipment, the hidden failure danger and the service life of the electrical equipment can be judged through long-time electromagnetic field analysis, and conditions are created for timely maintaining the equipment and eliminating the hidden failure danger.
Description
Technical field
The present invention relates to a kind of fault monitoring system, particularly a kind of electric equipment fault monitoring system that is applicable to electric equipment fault detect in industrial and mining enterprises.
Technical background
Electric equipment malfunction monitoring is significant for the safe operation of support equipment.There is no at present good malfunction monitoring means, especially some faults, not only can affect the reliability service of equipment, also can produce spark, ignite explosive material.Therefore, Real-Time Monitoring electric equipment fault is problem in the urgent need to address.
Summary of the invention
Technical matters: the object of the invention is to overcome the weak point in prior art, provide a kind of method simple in structure, easy to use, effective electric equipment fault real-time monitoring system.
Technical scheme: for realizing above-mentioned technical purpose, it comprises microprocessor, current sensor, voltage sensor, magnetic field detection circuit, electric field sensing circuits, display, warning circuit and telecommunication circuit electric equipment fault monitoring system of the present invention; The input end of described microprocessor is connected with the output terminal of current sensor, voltage sensor, magnetic field detection circuit, electric field sensing circuits respectively, the output terminal of microprocessor is connected with the input end of display, warning circuit and telecommunication circuit respectively, telecommunication circuit output terminal is connected with monitoring terminal by wired or wireless signal, and monitor signal is shown and analyzed; Described magnetic field detection circuit comprises the coiling bar magnet, oscillatory circuit and the f/V circuit that are linked in sequence; Described electric field sensing circuits comprises the electric field induction sheet metal, field effect transistor and the amplifier that are linked in sequence.
Described monitoring terminal is that the computing machine of monitoring of software is installed, and has electric current, the voltage of monitored electric equipment, the demonstration of Electric and magnetic fields signal, storage and analytic function.
Beneficial effect: owing to having adopted technique scheme, the present invention is by current sensor and the tested electric power supply electric current of voltage sensor senses and voltage, for the fault comprehensive judgement of tested electric equipment provides foundation.Can effectively monitor and find the burst electric fault of electric equipment, can receive the signal of multiple monitoring devices by monitoring terminal simultaneously, can realize the malfunction monitoring of many electric equipments.Also can pass through long electromagnetic field analysis, judge potential faults and the serviceable life of electric equipment, for service equipment, elimination potential faults create conditions in time.Its method is simple in structure, reliable, and monitoring effect is good, has practicality widely.
Brief description of the drawings
Fig. 1 is theory structure block diagram of the present invention;
Fig. 2 is electric field sensing circuits structured flowchart of the present invention;
Fig. 3 is magnetic field detection circuit structure block diagram of the present invention.
In figure: 1-current sensor; 2-voltage sensor; 3-electric field sensing circuits; 4-magnetic field detection circuit; 5-microprocessor; 6-display; 7-warning circuit; 8-telecommunication circuit; 9-monitoring terminal; 10-induction metal plate; 11-field effect transistor; 12-amplifier; The 13-bar magnet that winds the line; 14-oscillatory circuit; 15-f/V circuit.
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Electric equipment fault real-time monitoring system as shown in Figure 1, is mainly made up of microprocessor 5, current sensor 1, voltage sensor 2, magnetic field detection circuit 3, electric field sensing circuits 4, display 6, warning circuit 7 and telecommunication circuit 8; Described microprocessor 5 input ends are connected with the output terminal of current sensor 1, voltage sensor 2, magnetic field detection circuit 3, electric field sensing circuits 4 respectively, the output terminal of microprocessor 5 is connected with display 6, warning circuit 7 and the input end of telecommunication circuit 8 respectively, telecommunication circuit 8 output terminals are connected with monitoring terminal 9 by wired or wireless signal, and monitor signal is shown and analyzed; Monitoring terminal 9 can receive the signal of multiple monitoring devices simultaneously, to realize the malfunction monitoring of many electric equipments.Described monitoring terminal 9 is for installing the computing machine of monitoring of software, has electric current, the voltage of monitored electric equipment, the demonstration of Electric and magnetic fields signal, storage and analytic function.Described voltage sensor 2 adopts JYVS-AC500V; Field effect transistor 11 adopts 2SJ138; F/V circuit 15 adopts LM2907; Induction metal plate is that thickness is 0.3mm, and length and width are 3 × 5mm stainless steel substrates; Coiling bar magnet adopts the bar magnet that diameter 5mm, length are 50mm, and the enameled wire that is 0.7mm around upper 250 circles, diameter makes.Detect tested electric power supply electric current and voltage by current sensor 1 and voltage sensor 2, for the fault comprehensive judgement of tested electric equipment provides foundation.
As shown in Figure 2, described magnetic field detection circuit 3 comprises the coiling bar magnet 13, oscillatory circuit 14 and the f/V circuit 15 that are linked in sequence.By being arranged on the electric field being produced by other electric field sensing circuits 3 checkout equipments of electricity measurer, detection signal is sent to microprocessor 5, when the signal amplitude that receives electric field sensing circuits 3 when microprocessor 5 increases suddenly, preliminary judgement has fault to occur; The detection of electric field is simple and practical, does it receive by being arranged on by the other induction metal plate of electricity measurer the electric field that tested electric equipment produces in surrounding? electric field electric charge, transfer to the grid of field effect transistor 11, make field effect transistor 11 produce amplifying signal.
As shown in Figure 3, described electric field sensing circuits 4 comprises the electric field induction sheet metal 10, field effect transistor 11 and the amplifier 12 that are linked in sequence; Wherein microprocessor 5 adopts single chip computer AT MEGA16; Current sensor 1 adopts CT2100LT Hall element.By being arranged on the magnetic field being produced by other magnetic field detection circuit 4 checkout equipments of electricity measurer, detection signal is sent to microprocessor 5, when the detected amplitude that receives magnetic field when microprocessor 5 increases suddenly, preliminary judgement has fault to occur; The detection in magnetic field is simple and practical, it responds to by coiling bar magnet 13 magnetic field that tested electric equipment produces in surrounding, the coil inductance of bar magnet of making to wind the line changes, cause the frequency signal of oscillatory circuit 14 to change, again frequency change is converted to voltage signal output, can obtain magnetic field detection signal.
Principle of work: because power-equipment is along with load increases, can make electromagnetic intensity around increase when electric current increases thereupon, therefore the detection of equipment supply current and voltage can be used as the reference signal of fault judgement.By current sensor and the tested electric power supply electric current of voltage sensor senses and voltage, the electromagnetic field that electric equipment is produced is analyzed, if there is more serious short circuit or loose contact fault, and the electromagnetic field that equipment around can generation amplitude increases; If there is aging, the potential faults such as attenuating that insulate in the long-time use of electric equipment, the electromagnetic field that equipment produces also can change, and this situation is by the long term monitoring analysis to electric equipment monitoring terminal, the potential faults of judgment device.
Claims (2)
1. an electric equipment fault real-time monitoring system, is characterized in that: it comprises microprocessor (5), current sensor (1), voltage sensor (2), magnetic field detection circuit (3), electric field sensing circuits (4), display (6), warning circuit (7) and telecommunication circuit (8); The input end of described microprocessor (5) is connected with the output terminal of current sensor (1), voltage sensor (2), magnetic field detection circuit (3), electric field sensing circuits (4) respectively, the output terminal of microprocessor (5) is connected with display (6), warning circuit (7) and the input end of telecommunication circuit (8) respectively, telecommunication circuit (8) output terminal is connected with monitoring terminal (9) by wired or wireless signal, and monitor signal is shown and analyzed; Described magnetic field detection circuit (3) comprises the coiling bar magnet (13), oscillatory circuit (14) and the f/V circuit (15) that are linked in sequence; Described electric field sensing circuits (4) comprises the electric field induction sheet metal (10), field effect transistor (11) and the amplifier (12) that are linked in sequence.
2. electric equipment fault real-time monitoring system according to claim 1, it is characterized in that: described monitoring terminal (9) is for installing the computing machine of monitoring of software, there is electric current, the voltage of monitored electric equipment, the demonstration of Electric and magnetic fields signal, storage and analytic function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122354.3A CN103913658A (en) | 2014-03-28 | 2014-03-28 | Electrical equipment failure real-time monitor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122354.3A CN103913658A (en) | 2014-03-28 | 2014-03-28 | Electrical equipment failure real-time monitor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103913658A true CN103913658A (en) | 2014-07-09 |
Family
ID=51039492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410122354.3A Pending CN103913658A (en) | 2014-03-28 | 2014-03-28 | Electrical equipment failure real-time monitor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103913658A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199261A (en) * | 2016-07-04 | 2016-12-07 | 芯海科技（深圳）股份有限公司 | Electrical equipment Degree of Ageing based on the Internet continues detecting system and detection method |
| CN107069884A (en) * | 2017-05-16 | 2017-08-18 | 宁波技冠智能科技发展股份有限公司 | A kind of battery pack open circuit protector |
| CN107481485A (en) * | 2017-07-25 | 2017-12-15 | 国网江苏省电力公司南通供电公司 | Terminal box dehumidifier fault warning device |
| CN107807315A (en) * | 2017-10-31 | 2018-03-16 | 国网安徽省电力公司电力科学研究院 | Testing device for insulation defect and method for electrical equipment |
| CN111522716A (en) * | 2020-04-22 | 2020-08-11 | 永城职业学院 | Computer fault alarm method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470137A (en) * | 2007-12-24 | 2009-07-01 | 福建龙净环保股份有限公司 | Electric field spark detection circuit of electrostatic precipitator |
| CN103123378A (en) * | 2013-02-05 | 2013-05-29 | 中国矿业大学 | Method and device for monitoring electrical failure spark in real time |
-
2014
- 2014-03-28 CN CN201410122354.3A patent/CN103913658A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470137A (en) * | 2007-12-24 | 2009-07-01 | 福建龙净环保股份有限公司 | Electric field spark detection circuit of electrostatic precipitator |
| CN103123378A (en) * | 2013-02-05 | 2013-05-29 | 中国矿业大学 | Method and device for monitoring electrical failure spark in real time |
Non-Patent Citations (3)
| Title |
|---|
| 杨波 等: "频率调制型巨磁阻抗弱磁传感器设计", 《哈尔滨工程大学学报》, vol. 34, no. 12, 31 December 2013 (2013-12-31) * |
| 童紫原 等: "电气火花电磁场模型建立及分析#", 《中国科技论文在线》, 30 May 2013 (2013-05-30) * |
| 高永清 等: "新型馈电状态传感器的研究", 《电子设计应用》, 31 December 2004 (2004-12-31) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199261A (en) * | 2016-07-04 | 2016-12-07 | 芯海科技（深圳）股份有限公司 | Electrical equipment Degree of Ageing based on the Internet continues detecting system and detection method |
| CN106199261B (en) * | 2016-07-04 | 2019-03-05 | 芯海科技（深圳）股份有限公司 | Electric appliance Degree of Ageing Internet-based continues detection system and detection method |
| CN107069884A (en) * | 2017-05-16 | 2017-08-18 | 宁波技冠智能科技发展股份有限公司 | A kind of battery pack open circuit protector |
| CN107481485A (en) * | 2017-07-25 | 2017-12-15 | 国网江苏省电力公司南通供电公司 | Terminal box dehumidifier fault warning device |
| CN107807315A (en) * | 2017-10-31 | 2018-03-16 | 国网安徽省电力公司电力科学研究院 | Testing device for insulation defect and method for electrical equipment |
| CN107807315B (en) * | 2017-10-31 | 2023-12-19 | 国网安徽省电力公司电力科学研究院 | Method for detecting insulation defects of electrical equipment |
| CN111522716A (en) * | 2020-04-22 | 2020-08-11 | 永城职业学院 | Computer fault alarm method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202533813U (en) | Liquid level detection and control device applicable to electrically conductive solution | |
| CN103913658A (en) | Electrical equipment failure real-time monitor system | |
| CN105116283A (en) | Downhole power cable insulation monitoring device | |
| CN201724758U (en) | Wireless real-time temperature measuring device | |
| CN102636721A (en) | Ground fault detector for power transmission line | |
| CN204495943U (en) | A kind of fault electric arc detector | |
| CN207249039U (en) | A kind of partial discharge location system of high-tension switch cabinet | |
| CN103123378B (en) | Electric fault spark method of real-time and device | |
| CN202583391U (en) | Transmission line grounding fault detection instrument | |
| CN104502740B (en) | A kind of DC transmission system current conversion station Lightning Incoming Wave sampling apparatus and the method for sampling | |
| CN204154803U (en) | A kind of recombination current sensor for lightning arrester monitoring | |
| CN102593813A (en) | Intelligent comprehensive resonance elimination device | |
| CN204066325U (en) | The nearly electric safety early warning device of construction machinery | |
| CN202093058U (en) | Auxiliary device for verifying SF6 density relay | |
| CN203164278U (en) | Transformer substation switch chamber high-voltage equipment grounding step voltage detecting device | |
| CN203745545U (en) | Monitoring device for grounding grid of transformer station | |
| CN202455061U (en) | Intelligent comprehensive resonance elimination device | |
| CN202678933U (en) | DC earth leakage protection circuit | |
| CN202794460U (en) | Hall proximity switch failure detector | |
| CN203178338U (en) | Leakage current monitoring device | |
| CN203365528U (en) | Device for on-line detection of high-voltage current | |
| CN203690887U (en) | Electric leakage protection device for underground coal mine | |
| CN204030297U (en) | A kind of power distribution cabinet with ageing of insulation status monitoring function | |
| CN203826952U (en) | High-voltage equipment power frequency withstand voltage discharge device and discharge system | |
| CN202382859U (en) | Wireless monitoring apparatus for contact temperature of high voltage switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140709 |