CN105158660B - A kind of constant speed motor insulation automatic checkout system - Google Patents
A kind of constant speed motor insulation automatic checkout system Download PDFInfo
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- CN105158660B CN105158660B CN201510548934.3A CN201510548934A CN105158660B CN 105158660 B CN105158660 B CN 105158660B CN 201510548934 A CN201510548934 A CN 201510548934A CN 105158660 B CN105158660 B CN 105158660B
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Abstract
A kind of constant speed motor insulation automatic checkout system, belongs to field of electrical control.Motor Leakage Current signal pickup assembly, measurement signal transmitter, Insulation monitoring hand automatic change-over, constant speed motor major loop safety assurance auxiliary reclay, motor Insulation monitoring functional contact device are installed in live motor controlling cabinet.When needing automatic detection motor insulation resistance, Insulation monitoring hand automatic change-over is transformed into auto state, in groups the circuit breaker Q F closures of rod road motor；When detecting data alarm, accident motor is changed, Insulation monitoring hand automatic change-over is transformed into manual mode, manual unlocking motor main circuit power supply.Advantage is, will not produce any influence to the normal usage function of original production line, can reduce overhaul of the equipments and maintenance time, reduce production loss caused by motor insulation fault.
Description
Technical field
The invention belongs to technical field of electric control, more particularly to a kind of constant speed motor insulation automatic checkout system.It is applicable
In the motor Insulation monitoring of each voltage class different capabilities, insulation situation that can be to motor carries out data statistics, according to motor
Insulation statistics finds the changing rule of motor insulation, carries out dimension inspection work to the motor for gradual reduction of insulating, reduces production
Accident rate of stopping is caused because motor insulate to damage suddenly in line normal productive process, avoids the huge damage thus brought to production
Lose.
Background technology
In metallurgy industry, constant speed motor is very more, and not only temperature is high for many motor operation environment, and has water smoke humidity
Vibration when greatly, plus production, the often insulation to motor constitute a threat to.Motor made moist to insulate and destroyed before this, then circle
Between short circuit, stator overcurrent, last motor damage.
How to find in time motor insulation go wrong, note abnormalities, alarmed automatically, avoid in production process due to
Damage causes rolling line to stop suddenly for motor insulation, brings the massive losses of production to set motor Insulation Inspection System to reach
Purpose.
The content of the invention
It is an object of the invention to provide a kind of automatic Insulation Inspection System of constant speed motor, solves motor insulation and becomes
ND problem during change.Reduce the economic loss that parking accident is brought simultaneously.
In the gap that production is shut down, the insulation to motor carries out automatic detection, and data are uploaded automatically after detection, uploads number
According to compared with the normal value in database, once abnormal, horse back is alarmed.In this way, motor insulation can be increased
Detection number, and avoid missing inspection.The quick detection before shutting down for a long time is also applied for simultaneously, reduces electric machines test workload,
Shorten the motor Insulation monitoring time.
When production maintenance is shut down, first have to cut off the circuit between production line transmission cabinet and motor, connect motor measurement letter
The circuit of number harvester and machine winding, selection manually or automatically mode, the prison of motor electric leakage electric current is carried out in groups or by platform
Survey, and the current signal detected is converted to by the analog signalses that can be transmitted to PLC by measurement signal transmitter, pass through letter
Digital quantity signal is uploaded to PLC system by number cable, by PLC by the data compared with the normal value that internal system stores,
Judge whether motor insulation is normal, carries out data statistics, and establish database.When data are abnormal, alarm signal is sent, is carried
Show that maintainer carries out motor replacing.
The present invention includes：Motor leakage current signal harvester 1, measurement signal transmitter 2, Insulation monitoring hand are from turn
Change switch 3, constant speed motor major loop safety assurance auxiliary reclay 4, motor Insulation monitoring functional contact device 5, PLC controls and number
According to acquisition system and database 6.
Motor Leakage Current signal pickup assembly 1, measurement signal transmitter 2, Insulation monitoring hand automatic change-over 3, perseverance
Speed motor major loop safety assurance auxiliary reclay 4, motor Insulation monitoring functional contact device 5 are installed in live motor controlling cabinet
It is interior；Measurement motor Leakage Current loop is established by cable between motor Leakage Current signal pickup assembly 1 and tested measured motor；
By controlling cable to realize annexation between constant speed motor major loop safety assurance auxiliary reclay 4 and rolling line MCC cabinets.Scene
Equipment is controlled with PLC and carried out data transmission with data collecting system and database 6 by signal cable in motor controlling cabinet；PLC
Control is arranged on Automated condtrol room or operator station of production line etc. with data collecting system and database 6 and is easy to production to tie up
The place of pillar reason.
Specific detecting step is as follows：
1st, when needing automatic detection motor insulation resistance.
1) Insulation monitoring hand automatic change-over 3 is transformed into auto state first, and the circuit breaker Q F1 of rod road motor is closed in groups
Close；
2) send insulating monitoring with data collecting system and database 6 by PLC controls and check signal, constant speed motor major loop
Safety assurance auxiliary reclay 4 acts；
3) after PLC controls receive permission signal with data collecting system and database 6, connect to the work of motor Insulation monitoring
Tentaculum 5 sends closure signal；
4) after motor Insulation monitoring functional contact device 5 closes, motor leakage current signal harvester 1 is started working, and is led to
Cross measurement signal transmitter 2 and Leakage Current is converted into analog signalses, the analog signalses are controlled to PLC and adopted with data
Collecting system and database 6 are sent, and by PLC controls and data collecting system and database 6 is counted and background process, after processing
Data are according to circumstances made to alarm and store or directly store processing.
2nd, when detecting data alarm.
1) manual unlocking motor main circuit power supply, Insulation monitoring hand automatic change-over 3 is transformed into manual mode, changed
Accident motor.Insulation monitoring hand automatic change-over 3 is transformed into automated location after accident treatment.
2) send insulating monitoring with data collecting system and database 6 by PLC controls and check signal, constant speed motor major loop
Safety assurance auxiliary reclay 4 acts；
3) after PLC controls receive permission signal with data collecting system and database 6, connect to the work of motor Insulation monitoring
Tentaculum 5 sends closure signal；
4) after motor Insulation monitoring functional contact device 5 closes, motor leakage current signal harvester 1 is started working, and is led to
Cross measurement signal transmitter 2 and Leakage Current is converted into analog signalses, the analog signalses are controlled to PLC and adopted with data
Collecting system and database 6 are sent, and by PLC controls and data collecting system and database 6 is counted and background process, works as detection
Data are directly stored when being normal data.
3rd, repeat the above steps, until each electric machines test finishes.
The automatic Insulation Inspection System of constant speed motor is made up of three parts, contactor safety guarantee loop, motor Insulation monitoring
Loop and PLC automation control systems (database containing host computer), it is main to complete three effects：Safety assurance, motor insulation inspection
Survey, the realization and data base administration of whole system control function.
First, safety assurance.Using conventional constant speed motor major loop contactor, as motor stopping feedback signal, increase peace
Full auxiliary reclay 3, the rigid line connection between main power source and motor is thoroughly cut off during production line stop, is surveyed for motor Leakage Current
Amount is got ready.On the one hand ensure that detection is carried out under stopped status, keeps away when on the one hand playing test by the auxiliary reclay
Device damage or other accident caused by exempting from motor misdelivery electricity.
2nd, motor Insulation test loop.It is made up of conventional use of digital measurement table, measuring transducer and control loop.
Realize following two function：1st, the stopping signal that production line is sent is received；2nd, motor Insulation monitoring loop is started, carries out ground connection electricity
The test of resistance；3rd, being converted to test signal can be as the insulation data-signal of analog output.
3rd, PLC control system.The system sends motor Insulation test order after having reception production line stop signal, existing
Field gathered data uploads, the abnormal warning function of motor insulation；Have motor insulation database, exportable motor in test scope
The functions such as service condition, insulation change curve.
Host computer is with production line motor management Database Systems.Database possesses the work(such as storage, inquiry, modification, deletion
Energy.The content of data-base recording include Insulation monitoring value, detection time, the motor insulation of each motor fault alarm and with
Record of the communication packet of other control systems etc..The data of record store in table form, can intuitively show motor
Insulate the data stored, and the form of form can be with rich and varied.Database has historical record query function, temporally inquires about：
The record that user can inquire about in any time period as needed：According to motor name query：According to motor name query
The historical record of motor.Database has editting function：Can be as needed to the parameter of electric machine and testing number of database purchase
According to modifying or delete.Furthermore it is possible to set database manipulation authority, different operators carries out the operation of different rights.
It is an advantage of the current invention that whole system design will not produce any shadow to the normal operation of original production line motor
Ring, it is applied widely, be applicable to various important, motors be in adverse circumstances easily occur insulation fault, motor occur absolutely
The place of larger production loss will be caused after reason barrier；Overhaul of the equipments and maintenance time can be reduced, without as being needed during tradition maintenance
The test of insulation against ground resistance could be completed by tearing motor cable wiring open；Motor can be insulated and carry out automatic long-term detection, kept away
Accident caused by exempting from motor missing inspection；On the one hand database function improves the technology management level of overall production line, can be to the thing that insulate
Therefore counted, according to the storage content of database, the historical trend that every motor insulation resistance changes can be shown, to motor
Life-span is counted, and is provided foundation for production formulation maintenance of motor repair schedule, standby redundancy plan, is provided with for safety in production
Power supports.
Brief description of the drawings
Fig. 1 is constant speed motor insulation automatic detection fundamental diagram.Wherein, motor leakage current signal gathers 1, passes through survey
Measure signal transmitting device 2, Insulation monitoring hand automatic change-over 3, constant speed motor major loop safety assurance auxiliary reclay 4, motor
Insulation monitoring functional contact device 5, PLC controls and data collecting system and database 6.
Fig. 2 is motor insulation automatic checkout system workflow diagram.
Specific implementation method
Embodiment 1
In PLC controls with setting the motor for needing to detect on the picture of data collecting system and database 6, examined by insulating
It is real to survey hand automatic change-over 3, constant speed motor major loop safety assurance auxiliary reclay 4, motor Insulation monitoring functional contact device 5
The conducting in existing motor Insulation monitoring loop, the motor detected by motor Leakage Current signal pickup assembly 1 to needs are examined
Survey, the analog signalses for being converted into uploading by the signal detected by measurement signal transmitter 2, be uploaded to PLC controls
With data collecting system and database 6, by sentencing in PLC controls with data collecting system and database 6 to gathering signal
It is fixed.When motor Insulation monitoring value is normal, PLC controls send electricity with data collecting system and database 6 to production line PLC system
Machine normal signal, production line can be run.All detection data are by PLC controls and data collecting system and database 6
Achieved, be easy to inquiry and management.
Embodiment 2
In PLC controls with setting the motor for needing to detect on the picture of data collecting system and database 6, examined by insulating
It is real to survey hand automatic change-over 3, constant speed motor major loop safety assurance auxiliary reclay 4, motor Insulation monitoring functional contact device 5
The conducting in existing motor Insulation monitoring loop, the motor detected by motor Leakage Current signal pickup assembly 1 to needs are examined
Survey, the analog signalses for being converted into uploading by the signal detected by measurement signal transmitter 2, be uploaded to PLC controls
With data collecting system and database 6, by sentencing in PLC controls with data collecting system and database 6 to gathering signal
It is fixed.Motor insulation goes wrong, in PLC controls with sending electrical fault acousto-optic on the picture of data collecting system and database 6
Alarm, after the signal that receives the report for police service, maintainer carries out in-situ processing, and after processing, repeatedly the step of embodiment 1, after processing, is repeated
The step of embodiment 1, until starting to produce after motor Insulation monitoring value is normal.It is all detection data by PLC control with
Data collecting system and database 6 are achieved, and are easy to inquiry and management.
Claims (1)
1. a kind of automatic Insulation Inspection System of constant speed motor, it is characterised in that including motor Leakage Current signal pickup assembly
(1), measurement signal transmitter (2), Insulation monitoring hand automatic change-over (3), among constant speed motor major loop safety assurance after
Electrical equipment (4), motor Insulation monitoring functional contact device (5), PLC controls and data collecting system and database (6)；Motor leakage electricity
Flow signal pickup assembly (1), measurement signal transmitter (2), Insulation monitoring hand automatic change-over (3), constant speed motor major loop
Safety assurance auxiliary reclay (4), motor Insulation monitoring functional contact device (5) are installed in live motor controlling cabinet；Motor
Measurement motor Leakage Current loop is established by cable between Leakage Current signal pickup assembly (1) and tested measured motor；Constant speed
By controlling cable to realize annexation between motor main circuit safety assurance auxiliary reclay (4) and rolling line MCC cabinets；Live electricity
Equipment is controlled with PLC and carried out data transmission with data collecting system and database (6) by signal cable in machine switch board；PLC
Control is arranged on Automated condtrol room or the operator station of production line with data collecting system and database (6)；
Specific detecting step is as follows：
1) when needing automatic detection motor insulation resistance；
1. Insulation monitoring hand automatic change-over (3) is transformed into auto state first, the circuit breaker Q F1 of rod road motor is closed in groups
Close；
2. sending insulating monitoring with data collecting system and database (6) by PLC controls checks signal, constant speed motor major loop peace
All risk insurance card auxiliary reclay (4) action；
3. after PLC controls receive permission signal with data collecting system and database (6), to motor Insulation monitoring functional contact
Device (5) sends closure signal；
4. after motor Insulation monitoring functional contact device (5) closure, motor Leakage Current signal pickup assembly (1) is started working, and is led to
Cross measurement signal transmitter (2) and Leakage Current be converted into analog signalses, the analog signalses to PLC control and data
Acquisition system and database (6) are sent, and by PLC controls and data collecting system and database (6) is counted and background process,
Data are according to circumstances made after processing to alarm and store or directly store processing；
2) when detecting data alarm；
1. manual unlocking motor main circuit power supply, Insulation monitoring hand automatic change-over 3 is transformed into manual mode, changes accident
Motor；Insulation monitoring hand automatic change-over 3 is transformed into automated location after accident treatment；
2. sending insulating monitoring with data collecting system and database (6) by PLC controls checks signal, constant speed motor major loop peace
All risk insurance card auxiliary reclay (4) action；
3. after PLC controls receive permission signal with data collecting system and database (6), to motor Insulation monitoring functional contact
Device (5) sends closure signal；
4. after motor Insulation monitoring functional contact device (5) closure, motor Leakage Current signal pickup assembly (1) is started working, and is led to
Cross measurement signal transmitter (2) and Leakage Current be converted into analog signalses, the analog signalses to PLC control and data
Acquisition system and database (6) are sent, and by PLC controls and data collecting system and database (6) is counted and background process,
Directly stored when detecting data and being normal data；
3) repeat the above steps, until each electric machines test finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548934.3A CN105158660B (en) | 2015-08-31 | 2015-08-31 | A kind of constant speed motor insulation automatic checkout system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548934.3A CN105158660B (en) | 2015-08-31 | 2015-08-31 | A kind of constant speed motor insulation automatic checkout system |
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| Publication Number | Publication Date |
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| CN105158660A CN105158660A (en) | 2015-12-16 |
| CN105158660B true CN105158660B (en) | 2018-03-13 |
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| CN201510548934.3A Active CN105158660B (en) | 2015-08-31 | 2015-08-31 | A kind of constant speed motor insulation automatic checkout system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109240194A (en) * | 2018-09-21 | 2019-01-18 | 中持水务股份有限公司 | Electric machine control system and control method for engineering of water treatment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201886129U (en) * | 2010-11-02 | 2011-06-29 | 天津市詹佛斯科技发展有限公司 | High-efficiency smart test bench system for motors |
| CN203337792U (en) * | 2013-05-30 | 2013-12-11 | 天津出入境检验检疫局工业产品安全技术中心 | Motor type test system |
| CN204302385U (en) * | 2014-11-28 | 2015-04-29 | 武汉钢铁(集团)公司 | A kind of measurement mechanism of apparatus insulated performance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5788538B2 (en) * | 2014-01-08 | 2015-09-30 | ファナック株式会社 | Motor drive device with insulation deterioration detection function and motor insulation resistance detection method |
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- 2015-08-31 CN CN201510548934.3A patent/CN105158660B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201886129U (en) * | 2010-11-02 | 2011-06-29 | 天津市詹佛斯科技发展有限公司 | High-efficiency smart test bench system for motors |
| CN203337792U (en) * | 2013-05-30 | 2013-12-11 | 天津出入境检验检疫局工业产品安全技术中心 | Motor type test system |
| CN204302385U (en) * | 2014-11-28 | 2015-04-29 | 武汉钢铁(集团)公司 | A kind of measurement mechanism of apparatus insulated performance |
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| CN105158660A (en) | 2015-12-16 |
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