CN107727996A - A kind of electric wiring connection deterioration monitoring method - Google Patents
A kind of electric wiring connection deterioration monitoring method Download PDFInfo
- Publication number
- CN107727996A CN107727996A CN201710959677.1A CN201710959677A CN107727996A CN 107727996 A CN107727996 A CN 107727996A CN 201710959677 A CN201710959677 A CN 201710959677A CN 107727996 A CN107727996 A CN 107727996A
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- Prior art keywords
- connection
- deterioration
- electric wiring
- controller
- impedance value
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 41
- 230000006866 deterioration Effects 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 23
- KFOPKOFKGJJEBW-ZSSYTAEJSA-N methyl 2-[(1s,7r,8s,9s,10r,13r,14s,17r)-1,7-dihydroxy-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]acetate Chemical compound C([C@H]1O)C2=CC(=O)C[C@H](O)[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](CC(=O)OC)[C@@]1(C)CC2 KFOPKOFKGJJEBW-ZSSYTAEJSA-N 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- H02J13/0006—
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of electric wiring to connect deterioration monitoring method, and electric wiring connection deterioration monitoring method comprises the following steps：A, it is 3000 times per second by the connection impedance interior for a period of time of sensor and controller continuous monitoring connection point, monitoring frequency, takes its average value as initial connection impedance value R；B, the operation for continuing to monitor connection point with controller by sensor connects impedance value r, and monitoring frequency is 3000 times per second, and calculates the derivative V of every millisecond of operation connection impedance value r changing value；C, operation connection impedance value r and initial connection impedance value R are compared by controller, if r >=R, and V >=1.5R Ω/ms then judge that connection point occurs accelerating connection deterioration；D, if it is determined that connection point occurs accelerating connection deterioration, then by controller control relay, power-off protection is carried out.A kind of electric wiring of the present invention connects the current conditions for deteriorating monitoring method by monitoring electric wiring tie point in real time, the acceleration connection deterioration of tie point is found in time, and processing and information issue are controlled rapidly, the harm such as arcing can be effectively avoided to occur, so as to ensure the safe operation of electric wiring.
Description
Technical field
The present invention relates to a kind of Electrical Safety monitoring method, and deterioration monitoring side is connected more particularly to a kind of electric wiring
Method.
Background technology
Electric wiring tie point is often the weak spot on electric wiring, phenomena such as loosening, coming off easily occurs, so as to hold
Arcing is easily caused, causes electrical hazard, seriously endangers the property and life security of people.And now lack effective means pair at present
The deterioration of electric wiring tie point is monitored in real time, so as to cause to prevent trouble before it happens, can not also realize safety utilization of electric power
Management.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of electric wiring connection deterioration monitoring method, and it can pass through prison
The current conditions of electric wiring tie point are surveyed, find the accelerated deterioration of electric wiring tie point in time, in order to which Electrical Safety is supervised
Pipe.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
A kind of electric wiring connection deterioration monitoring method, comprises the following steps：A, sensor and controller continuous monitoring line are passed through
The connection impedance interior for a period of time of road tie point, monitoring frequency are 3000 times per second, take its average value as initial connection impedance
Value R；B, the operation for continuing to monitor connection point with controller by sensor connects impedance value r, and monitoring frequency is per second
3000 times, and calculate the derivative V of every millisecond of operation connection impedance value r changing value；C, operation connection resistance is compared by controller
Anti- value r and initial connection impedance value R, if r >=R, and V >=1.5R Ω/ms then judge that connection point occurs accelerating connection deterioration；
D, if it is determined that connection point occurs accelerating connection deterioration, then by controller control relay, power-off protection is carried out.The present invention
A kind of electric wiring connection deterioration monitoring method counts the power unit certain time by current sensor and controller study
Maximum current value in section, then the current conditions of monitoring power unit in real time, if meet electric current becomes big and beyond study suddenly
The certain limit of maximum current value and to accelerate increase, then be determined as that increase has improper load, now then starting relay, cut
The power supply of disconnected power unit, carries out power-off protection.
Preferably, current sensor is Hall current sensor in the step A and B, it is initial to connect impedance value R and fortune
Impedance value r is by being calculated for row connection, i.e., is calculated by R=U/I.
Preferably, in the step A continuous monitoring when a length of 1-10 days.
Preferably, if it is determined that connection point occurs accelerating connection deterioration then to pass through controller simultaneously in the step D
Start siren and carry out alarm, be easy to timely repair and maintenance.
Preferably, if it is determined that connection point occurs accelerating connection deterioration then to pass through controller simultaneously in the step D
On communication unit monitoring information is uploaded to background server, be convenient for remote monitoring and data storage.
Start button is relearned preferably, being provided with the step A on controller, is easy to electricity consumption on electric wiring
Restart step A when equipment varies widely, that is, relearn.
Compared with prior art, a kind of beneficial effect of electric wiring connection deterioration monitoring method of the present invention：By real-time
The current conditions of electric wiring tie point are monitored, find the acceleration connection deterioration of tie point in time, and are controlled processing rapidly
Issued with information, can effectively avoid the harm such as arcing from occurring, so as to ensure the safe operation of electric wiring.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of schematic diagram of electric wiring connection deterioration monitoring method of the present invention.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent by other or with similar purpose
Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics
.
As shown in figure 1, a kind of electric wiring connection deterioration monitoring method of the present invention, comprises the following steps：A, sensing is passed through
Device and the interior for a period of time connection impedance of controller continuous monitoring connection point, monitoring frequency are 3000 times per second, take it flat
Average can be referred to as learning process as initial connection impedance value R, the process；B, continue to monitor line by sensor and controller
The operation connection impedance value r of road tie point, monitoring frequency is 3000 times per second, and calculates every millisecond of operation connection impedance value r's
The derivative V of changing value；C, operation connection impedance value r and initial connection impedance value R are compared by controller, if r >=R, and V >=
1.5R Ω/ms then judge that connection point occurs accelerating connection deterioration；D, if it is determined that connection point occurs accelerating connection deterioration,
Then by controller control relay, power-off protection is carried out.The controller includes single-chip microcomputer, model STC15W408AS.
As shown in figure 1, in a kind of electric wiring connection deterioration monitoring method of the present invention, current sense in the step A and B
Device is Hall current sensor, and initial impedance value R and the operation connection impedance value r of connecting is by being calculated.Connect in the step A
Continuous monitoring when a length of 1-10 days.If it is determined that connection point occurs accelerating connection deterioration then to pass through control simultaneously in the step D
Device processed starts siren and carries out alarm.If it is determined that connection point occurs accelerating connection deterioration then to pass through simultaneously in the step D
Monitoring information is uploaded to background server by the communication unit on controller.It is provided with controller in the step A and learns again
Practise start button.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, every the present invention's
All any modification, equivalent and improvement made within spirit and principle etc., should be included in the scope of the protection.
Claims (6)
1. a kind of electric wiring connection deterioration monitoring method, it is characterised in that comprise the following steps：
A, by the connection impedance interior for a period of time of sensor and controller continuous monitoring connection point, monitoring frequency is per second
3000 times, its average value is taken as initial connection impedance value R；
B, the operation for continuing to monitor connection point with controller by sensor connects impedance value r, and monitoring frequency is per second
3000 times, and calculate the derivative V of every millisecond of operation connection impedance value r changing value；
C, operation connection impedance value r and initial connection impedance value R are compared by controller, if r >=R, and V >=1.5R Ω/ms are then
Judge that connection point occurs accelerating connection deterioration；
D, if it is determined that connection point occurs accelerating connection deterioration, then by controller control relay, power-off protection is carried out.
A kind of 2. electric wiring connection deterioration monitoring method according to claim 1, it is characterised in that：The step A and B
Middle current sensor is Hall current sensor, and initial impedance value R and the operation connection impedance value r of connecting is by being calculated.
A kind of 3. electric wiring connection deterioration monitoring method according to claim 1, it is characterised in that：In the step A
Continuous monitoring when a length of 1-10 days.
A kind of 4. electric wiring connection deterioration monitoring method according to claim 1, it is characterised in that：In the step D
If it is determined that connection point, which occurs accelerating to connect deterioration then while starts siren by controller, carries out alarm.
A kind of 5. electric wiring connection deterioration monitoring method according to claim 1, it is characterised in that：In the step D
If it is determined that connection point occurs accelerating connection deterioration to be then simultaneously uploaded to monitoring information by the communication unit on controller
Background server.
A kind of 6. electric wiring connection deterioration monitoring method according to claim 1, it is characterised in that：In the step A
It is provided with controller and relearns start button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959677.1A CN107727996B (en) | 2017-10-16 | 2017-10-16 | Electrical line connection degradation monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959677.1A CN107727996B (en) | 2017-10-16 | 2017-10-16 | Electrical line connection degradation monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107727996A true CN107727996A (en) | 2018-02-23 |
| CN107727996B CN107727996B (en) | 2020-10-02 |
Family
ID=61211230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710959677.1A Active CN107727996B (en) | 2017-10-16 | 2017-10-16 | Electrical line connection degradation monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107727996B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0919046A (en) * | 1995-04-28 | 1997-01-17 | Mitsubishi Electric Corp | Insulation-degradation diagnostic apparatus |
| CN1262802A (en) * | 1997-07-10 | 2000-08-09 | 西门子公司 | Method and system for detecting shot-circuit in low-voltage mains |
| CN101329381A (en) * | 2008-07-28 | 2008-12-24 | 庞元俊 | Method for detecting short circuit fault with current change rate |
| CN102812369A (en) * | 2010-04-14 | 2012-12-05 | 三菱电机株式会社 | Insulation deterioration diagnosis device |
| CN102854428A (en) * | 2011-06-28 | 2013-01-02 | 西门子公司 | Method and device for short circuit detection |
| CN103278711A (en) * | 2013-04-28 | 2013-09-04 | 福州大学 | Method for early detecting and identifying short-circuit faults and series arc faults |
| CN103733080A (en) * | 2011-08-01 | 2014-04-16 | 维也纳技术大学 | Method and device for detecting a deterioration in the state of an insulation in an operating electric machine |
| CN105572544A (en) * | 2016-02-01 | 2016-05-11 | 河南理工大学 | Current change rate-based coal mine power grid short-circuiting fault quick judging device and method |
| JP2016176924A (en) * | 2015-03-18 | 2016-10-06 | 積水化学工業株式会社 | Secondary battery deterioration detection system and method for detecting secondary battery deterioration |
| CN106067612A (en) * | 2016-04-21 | 2016-11-02 | 中国北方车辆研究所 | High direct voltage electric connector and connection reliability checking method thereof |
-
2017
- 2017-10-16 CN CN201710959677.1A patent/CN107727996B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0919046A (en) * | 1995-04-28 | 1997-01-17 | Mitsubishi Electric Corp | Insulation-degradation diagnostic apparatus |
| CN1262802A (en) * | 1997-07-10 | 2000-08-09 | 西门子公司 | Method and system for detecting shot-circuit in low-voltage mains |
| CN101329381A (en) * | 2008-07-28 | 2008-12-24 | 庞元俊 | Method for detecting short circuit fault with current change rate |
| CN102812369A (en) * | 2010-04-14 | 2012-12-05 | 三菱电机株式会社 | Insulation deterioration diagnosis device |
| CN102854428A (en) * | 2011-06-28 | 2013-01-02 | 西门子公司 | Method and device for short circuit detection |
| CN103733080A (en) * | 2011-08-01 | 2014-04-16 | 维也纳技术大学 | Method and device for detecting a deterioration in the state of an insulation in an operating electric machine |
| CN103278711A (en) * | 2013-04-28 | 2013-09-04 | 福州大学 | Method for early detecting and identifying short-circuit faults and series arc faults |
| JP2016176924A (en) * | 2015-03-18 | 2016-10-06 | 積水化学工業株式会社 | Secondary battery deterioration detection system and method for detecting secondary battery deterioration |
| CN105572544A (en) * | 2016-02-01 | 2016-05-11 | 河南理工大学 | Current change rate-based coal mine power grid short-circuiting fault quick judging device and method |
| CN106067612A (en) * | 2016-04-21 | 2016-11-02 | 中国北方车辆研究所 | High direct voltage electric connector and connection reliability checking method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王云熙: "电力设备绝缘劣化诊断法", 《河北电力技术》 * |
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| Publication number | Publication date |
|---|---|
| CN107727996B (en) | 2020-10-02 |
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