CN106771999A - A kind of high voltage isolator mechanical fault detection device and detection method - Google Patents
A kind of high voltage isolator mechanical fault detection device and detection method Download PDFInfo
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- CN106771999A CN106771999A CN201611058760.3A CN201611058760A CN106771999A CN 106771999 A CN106771999 A CN 106771999A CN 201611058760 A CN201611058760 A CN 201611058760A CN 106771999 A CN106771999 A CN 106771999A
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- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
Abstract
The invention provides a kind of high voltage isolator mechanical fault detection method and detection means, the high voltage isolator mechanical fault detection method and device that the present invention is provided judges high voltage isolator to be checked by the coefficient correlation between the current data and reference waveform that calculate high voltage isolator to be checked with the presence or absence of mechanical breakdown and the order of severity of mechanical breakdown, so as to avoid being slipped up caused by staff's micro-judgment；Simultaneously, the current data that host computer can be sended over to slave computer is all processed, so as to the running status to all high voltage isolators judges that this can not only greatly improve overhaul efficiency, the journey that uses manpower and material resources sparingly sheet, but also the situation of missing inspection can be avoided.
Description
Technical field
The present invention relates to high voltage isolator machine Mechanical Failure Analysis technical field, more particularly to a kind of high voltage isolator
Mechanical fault detection device and detection method.
Background technology
High-voltage switch gear is the equipment commonly used in a kind of power system also known as primary cut-out.High-voltage switch gear can not only be cut
No-load current and load current in disconnected or closed high circuit, but also relay can be passed through when power system is broken down
The effect of device protection device, cuts off overload electric current and short circuit current.
High-voltage switch gear species is more, wherein, high voltage isolator is most one kind of consumption in power system.Using
When, high voltage isolator needs to be supported the use with primary cut-out, and in general, the consumption of high voltage isolator is high pressure
2~4 times of breaker consumption.High voltage isolator is supported the use with primary cut-out, is mainly used in grid switching operation, insulating power supply
Or division Smaller load equipment, and the safety of High-Voltage Electrical Appliances and its device in service work is ensure that, and then play isolation
The effect of voltage.Because high voltage isolator is typically in outdoor running environment, thus easily it is subject to surrounding environment and weather bar
The influence of part；Simultaneously because high voltage isolator is chronically at closure or off-state, easily sent out under the influence of environment around
The various failures of raw Insulator detection, galvanic circle heating, operation failure and corrosion etc..In above-mentioned various failures, remove
Galvanic circle heating is outer, and other belong to mechanical breakdown.
There is its corresponding detection method for above-mentioned various failures, be such as directed to Insulator detection problem, existing method is such as
Ultrasonic examination technology, vibroacoustics method, infrared heat detection etc. can effective detection go out the defect of insulator presence, but detect into
This height；For galvanic circle heating problem, existing infrared monitoring technology being capable of effective detection prevention overheat of conducting circuit problem；
For mechanical breakdowns such as operation failure, corrosion bites, existing diagnostic method is main based on experience diagnosis and the precautionary measures, such as
To the disconnecting switch with crank, mechanical bite, the method operation letter can be determined whether by rotating feel weight during crank
It is single but relevant with the experience of operating personnel, easily cause erroneous judgement；Such as inspect periodically whether limit switch fixed screw loosens, in advance
The divide-shut brake of anti-plug-in strip is not in place, intermittent oiling turning joint position, prevents transmission mechanism corrosion bite, but this needs is substantial amounts of
Manpower.Above-mentioned checkout and diagnosis method has that testing cost is high, by micro-judgment or need a large amount of manpowers；Meanwhile, on
The method of stating can only be detected for single mechanical breakdown, and need type of fixing a breakdown one by one in detection, it is impossible to which unification is sentenced
Whether there was a mechanical failure for disconnected high voltage isolator.Therefore, the above method cannot all meet no matter from security, economy
Power system security, stabilization, expanding economy requirement.
The content of the invention
The present invention provides a kind of high voltage isolator mechanical fault detection device and detection method, to solve existing detection side
Method can only the single problem for detecting high voltage isolator mechanical breakdown.
The present invention provides a kind of high voltage isolator mechanical fault detection method, and the detection method includes：
During high voltage isolator divide-shut brake to be checked, to be checked high voltage isolator motor of the detection on slave computer
The current signal of any one phase in stator phase triple line；
The numbering of the current signal and the slave computer is sent to data acquisition device；
The data acquisition device is sampled according to preset sample frequency to the current signal, forms current data；
The numbering of the current data and the slave computer is sent to host computer by radio communication device；
Choose after the slave computer starts to divide-shut brake terminate between the current data；
The current data after by selection carries out Xi Er bit conversions, obtains current envelops data；
The current envelops data are carried out into wavelet filtering, current envelope curve is obtained；
Searched in default waveform database and the high voltage isolator model identical high voltage isolator to be checked
Reference waveform；
Calculate the coefficient correlation between the current envelope curve and the reference waveform；
Judge the high voltage isolator to be checked with the presence or absence of mechanical breakdown and mechanical breakdown according to the coefficient correlation
The order of severity.
Preferably, the preset sample frequency is the integral multiple of the intrinsic response frequency of system, and the preset sample frequency
More than the intrinsic response frequency of the system of twice.
Preferably, the preset sample frequency is 400Hz.
Preferably, the current envelops data are carried out into wavelet filtering, obtaining current envelope curve includes：
The current envelops data are carried out by 6 layers of decomposition by dmey small echos, 1-6 layers of high frequency coefficient, reconstruct the 6th is removed
The low frequency coefficient of layer, obtains the low frequency wave less than 4Hz, forms current envelope curve.
Preferably, the foundation of the waveform database includes：
High voltage isolator is debugged；
After debugging is normal, the current signal under the high voltage isolator normal operating condition is measured；
The current signal and the corresponding high voltage isolator model of the current signal are preserved, waveform number is formed
According to storehouse.
Preferably, the computing formula of the coefficient correlation is：
Wherein, r is coefficient correlation, xi、yiIt is two discrete signal sequences, n is sequence
Column data number,It is the average of two sequences.
Preferably, judge that the high voltage isolator to be checked whether there is mechanical breakdown and machinery according to the coefficient correlation
The order of severity of failure includes：
If 0.85≤| r |≤1, the high voltage isolator to be checked is in normal condition；
If 0.55≤| r |<0.85, then the high voltage isolator to be checked there is mild mechanical failure；
If 0.25≤| r |<0.55, then the high voltage isolator to be checked there is significant mechanical failure；
If 0≤| r |<0.25, then the high voltage isolator to be checked is in the presence of very significant mechanical failure.
The present invention provides a kind of high voltage isolator mechanical fault detection device, and the detection means includes host computer and many
Individual slave computer, the host computer and multiple slave computers include the nothing in radio communication device, and the host computer
Line communicator is electrically connected the radio communication device in multiple slave computers；The host computer also includes and is located at
The main frame that the radio communication device in the host computer is connected, the slave computer also include electrical connection detection means and
Data acquisition device, the data acquisition device is electrically connected with the radio communication device in the slave computer.
Preferably, the detection means is current sensor, and the data acquisition device is A/D converter or data acquisition
Card.
Preferably, the radio communication device is ZigBee module or RF903 modules.
The technical scheme that embodiments of the invention are provided can include the following benefits：
The high voltage isolator mechanical fault detection method that the present invention is provided includes：High voltage isolator divide-shut brake mistake to be checked
Cheng Zhong, the electric current letter of detection any one phase in the high voltage isolator motor stator phase triple line to be checked on slave computer
Number；The numbering of the current signal and the slave computer is sent to data acquisition device；The data acquisition device is according to pre-
If sample frequency is sampled to the current signal, current data is formed；By the current data and the volume of the slave computer
Number host computer is sent to by radio communication device；Choose after the slave computer starts to divide-shut brake terminate between the electric current
Data；The current data after by selection carries out Xi Er bit conversions, obtains current envelops data；By the current envelops number
According to wavelet filtering is carried out, current envelope curve is obtained；Searched in default waveform database and the high voltage isolator to be checked
The reference waveform of model identical high voltage isolator；Calculate the phase relation between the current envelope curve and the reference waveform
Number；Judge the high voltage isolator to be checked with the presence or absence of mechanical breakdown and the serious journey of mechanical breakdown according to the coefficient correlation
Degree.In the high voltage isolator mechanical fault detection method that the present invention is provided, data acquisition device is according to preset sample frequency
Current signal during the high voltage isolator divide-shut brake that sends over is acquired, current data, current data is formed
And the numbering of slave computer that high voltage isolator is located at together is sent to host computer, the main frame in host computer is to sending over
Current data carries out data processing according to the numbering of slave computer, completes the current data treatment to all high voltage isolators, and
The running status of all high voltage isolators being connected with host computer according to handled interpretation of result, so as to judge high_voltage isolation
Whether switch there is mechanical breakdown and the order of severity for breaking down.Main frame in host computer enters to the current data for sending over
During row data processing, Xi Er bit conversions and wavelet filtering are carried out to current data respectively, opened so as to obtain high_voltage isolation to be checked
Corresponding current envelope curve is closed, is searched in waveform database and high voltage isolator model identical high voltage isolator to be checked
Reference waveform, the coefficient correlation between current envelope curve and reference waveform obtained by calculating, so that by between the two
Coefficient correlation judges high voltage isolator to be checked with the presence or absence of mechanical breakdown and the order of severity of mechanical breakdown.What the present invention was provided
High voltage isolator mechanical fault detection method is by between the current data and reference waveform that calculate high voltage isolator to be checked
Coefficient correlation and judge the order of severity of the high voltage isolator to be checked with the presence or absence of mechanical breakdown and mechanical breakdown, so as to avoid
Slipped up caused by staff's micro-judgment；Meanwhile, the current data that host computer can be sended over to slave computer is all entered
Row treatment, so as to the running status to all high voltage isolators judges that this can not only greatly improve overhaul efficiency, saves
Human-saving material resources journey sheet, but also the situation of missing inspection can be avoided.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows and meets implementation of the invention
Example, and be used to explain principle of the invention together with specification.
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is that the detection method flow of high voltage isolator mechanical fault detection method provided in an embodiment of the present invention is illustrated
Figure；
Fig. 2 is the current data oscillogram that host computer provided in an embodiment of the present invention is received；
Fig. 3 is the schematic diagram of high voltage isolator mechanical fault detection device provided in an embodiment of the present invention.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in implementation method do not represent and the consistent all implementation methods of the present invention.Conversely, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Accompanying drawing 1 is refer to, accompanying drawing 1 shows high voltage isolator mechanical fault detection method provided in an embodiment of the present invention
Detection method schematic flow sheet.The description of following high voltage isolator mechanical fault detection method is based on accompanying drawing 1.
A kind of high voltage isolator mechanical fault detection method is the embodiment of the invention provides, the detection method includes：
S01：During high voltage isolator divide-shut brake to be checked, to be checked high voltage isolator of the detection on slave computer
The current signal of any one phase in motor stator phase triple line.
S02：The numbering of current signal and slave computer is sent to data acquisition device.
S03：Data acquisition device is sampled according to preset sample frequency to current signal, forms current data.
S04：The numbering of current data and slave computer is sent to host computer by radio communication device.
S05：Choose slave computer start after to divide-shut brake terminate between current data.
S06：Current data after selection is carried out into Xi Er bit conversions, current envelops data are obtained.
S07：Current envelops data are carried out into wavelet filtering, current envelope curve is obtained.
S08：Searched in default waveform database and high voltage isolator model identical high voltage isolator to be checked
Reference waveform.
S09：Coefficient correlation between calculating current envelope and reference waveform.
S10：Judge high voltage isolator to be checked with the presence or absence of the serious of mechanical breakdown and mechanical breakdown according to coefficient correlation
Degree.
Specifically it is described as：
S01：During high voltage isolator divide-shut brake to be checked, to be checked high_voltage isolation of the detection on slave computer is opened
The current signal of any one phase in powered-down machine stator phase triple line, the current signal includes size of current.
S02：The numbering of the current signal that will be detected and the slave computer for being provided with high voltage isolator to be checked is sent to number
According to harvester, so that data acquisition device carries out data acquisition to current signal.
S03：Data acquisition device carries out data sampling to continuous current signal according to preset sample frequency, forms electric current
Data.Wherein, the preset sample frequency is the integral multiple of system intrinsic response frequency, and preset sample frequency is more than twice
Unite intrinsic response frequency.In embodiments of the present invention, the intrinsic response frequency of system is 50Hz, and preset sample frequency is set to
400Hz。
S04：The current data and the numbering of slave computer that will be collected according to preset sample frequency pass through radio communication device
Host computer is sent to, wherein, radio communication device can be ZigBee module, RF903 modules etc..
S05：Choose slave computer start after to high voltage isolator divide-shut brake terminate between current data.
As shown in Figure 2, in the current data that slave computer is transferred to host computer, the current fluctuation of slave computer startup stage
It is larger, thus include too many clutter in waveform, follow-up measurement result is influenceed, therefore, slave computer needs the electricity to being received
Flow data is processed, that is, remove the current data of slave computer startup stage, is only chosen and keep apart to high pressure after slave computer starts
Close divide-shut brake terminate between current data.It is general, it is necessary to remove the number before current data waveform in the 3%-4% time periods
According to.
S06：Current data after selection is carried out into Xi Er bit conversions, current envelops data are obtained.
S07：Current envelops data are carried out into wavelet filtering, current envelope curve is obtained.
The current envelops data obtained after dmey small echos are by conversion carry out 6 layers of decomposition, and remove 1-6 layers of high frequency system
Number, the low frequency coefficient of the 6th layer of reconstruct obtains low frequency wave of the frequency less than 4Hz, so as to complete LPF and form current envelops
Line.
S08：Searched in default waveform database and high voltage isolator model identical high voltage isolator to be checked
Reference waveform.
New purchase or freshly prepd high voltage isolator are debugged, to ensure that high voltage isolator can be transported normally
OK；After debugging is normal, the current signal under measurement high voltage isolator normal operating condition；To the current signal that is collected and
The corresponding high voltage isolator model of current signal is preserved, and multigroup high voltage isolator model and its current signal are formed
Waveform database.
S09：Coefficient correlation between calculating current envelope and reference waveform.
Coefficient correlation between calculating current envelope and reference waveform, the coefficient correlation being capable of the tested isolation of quantitative description
Switching motor current envelops waveform relative to normal waveform distortion degree, so as to judge tested disconnecting switch with the presence or absence of machinery
The order of severity of failure and failure.Wherein, the computing formula of correlation coefficient r is：
xi、yiIt is current envelope curve data and reference waveform data, n is data amount check,It is the average of two data.
The span of correlation coefficient r is [- 1,1], and | r | can represent the height of degree of correlation between variable.Distinguishingly, | r |=1 claims
It is perfect positive correlation, represents that two fairly linear related, waveform variation tendencies of variable are identical；| r |=0 is referred to as uncorrelated,
Represent that two stochastic variable linear independences, waveform variation tendency have no association.
S10：Judge high voltage isolator to be checked with the presence or absence of the serious of mechanical breakdown and mechanical breakdown according to coefficient correlation
Degree.
Absolute value | r | according to coefficient correlation judges that high voltage isolator to be checked whether there is mechanical breakdown and mechanical breakdown
The order of severity, be specifically judged to：
If 0.85≤| r |≤1, high voltage isolator to be checked is in normal condition, can continue to normal operation；
If 0.55≤| r |<0.85, then high voltage isolator to be checked there is mild mechanical failure, when day-to-day operation is safeguarded need
Note；
If 0.25≤| r |<0.55, then high voltage isolator to be checked there is significant mechanical failure, such as there is serious bite, should
Maintenance is arranged as early as possible；
If 0≤| r |<0.25, then high voltage isolator to be checked there is very significant mechanical failure, such as refuse point, refuse conjunction, it is necessary to
Overhauled immediately, changed if necessary.
High voltage isolator mechanical fault detection method provided in an embodiment of the present invention is by data acquisition device according to pre-
If sample frequency is acquired to the current signal during the high voltage isolator divide-shut brake that sends over, electric current number is formed
According to the numbering of the slave computer that current data and high voltage isolator are located at together is sent to host computer, the main frame in host computer
Current data to sending over carries out data processing according to the numbering of slave computer, completes the electric current to all high voltage isolators
Data processing, and all high voltage isolators being connected with host computer according to handled interpretation of result running status so that
Judge whether high voltage isolator occurs mechanical breakdown and the order of severity for breaking down.Main frame in host computer is to sending over
Current data when carrying out data processing, Xi Er bit conversions and wavelet filtering are carried out to current data respectively, so as to be treated
The inspection corresponding current envelope curve of high voltage isolator, searches and high voltage isolator model identical to be checked in waveform database
The reference waveform of high voltage isolator, the coefficient correlation between current envelope curve and reference waveform obtained by calculating, so that logical
The coefficient correlation crossed between the two judges high voltage isolator to be checked with the presence or absence of mechanical breakdown and the order of severity of mechanical breakdown.
The high voltage isolator mechanical fault detection method that the present invention is provided by calculate the current data of high voltage isolator to be checked with
Coefficient correlation between reference waveform and judge high voltage isolator to be checked with the presence or absence of the serious of mechanical breakdown and mechanical breakdown
Degree, so as to avoid being slipped up caused by staff's micro-judgment；Meanwhile, the main frame in host computer can send to slave computer
The current data for coming over all is processed, so as to the running status to all high voltage isolators judges that this can not only
Overhaul efficiency is enough greatly improved, the journey that uses manpower and material resources sparingly sheet, but also the situation of missing inspection can be avoided.
A kind of high voltage isolator mechanical fault detection device is the embodiment of the invention provides, accompanying drawing 3 is specifically refer to.This
The high voltage isolator mechanical fault detection device that inventive embodiments are provided includes host computer and multiple slave computers, wherein, it is upper
Machine and multiple slave computers include that the radio communication device in radio communication device, and host computer is electrically connected multiple slave computers
In radio communication device, and then host computer realized with multiple slave computers by radio communication device while carrying out data transmission
Purpose.Further, host computer also includes the main frame being connected with the radio communication device in host computer, and slave computer also includes
The detection means and data acquisition device of electrical connection, and data acquisition device electrically connects with the radio communication device in slave computer.
Main frame is used to be analyzed the data message for receiving.Detection means is used to detect high voltage isolator motor stator phase three-phase
The current signal of any one phase in line, and detected current signal is sent.Data acquisition device sends to detection means
The current signal for coming over is acquired according to default frequency acquisition, and the data that will be collected are sent to by radio communication device
Host computer.
In high voltage isolator mechanical fault detection device provided in an embodiment of the present invention, detection means is current sense
Device, such as Hall current sensor.Further, data acquisition device be A/D converter or data collecting card, wherein, A/D conversion
Device can use sigma-delta type converter, gradually compare type or voltage to frequency conversion type etc..Radio communication device be ZigBee module or
RF903 modules.
High voltage isolator mechanical fault detection device provided in an embodiment of the present invention detects to be checked by current sensor
The current signal of any one phase in high voltage isolator motor stator phase triple line, and by detected current signal send to
A/D converter or data collecting card, A/D converter or data collecting card carry out data according to default frequency acquisition to current signal
Gather, and the data that will be collected are sent to by the radio communication device being connected with A/D converter or data collecting card
In host computer, and by main frame received data are carried out the calculating of Xi Er bit conversions, wavelet filtering and coefficient correlation with
Compare, and then draw high voltage isolator to be checked with the presence or absence of mechanical breakdown and the order of severity of mechanical breakdown.Due to host computer
It is connected with multiple slave computers, therefore, host computer can detect the fortune of coupled all slave computer mesohigh disconnecting switch
Market condition, and then overhaul efficiency is greatly improved, the journey that uses manpower and material resources sparingly sheet, it is to avoid the situation of missing inspection occurs.
Those skilled in the art considering specification and practice here after disclosure of the invention, will readily occur to it is of the invention its
Its embodiment.The application is intended to any modification of the invention, purposes or adaptations, these modifications, purposes or
Person's adaptations follow general principle of the invention and including undocumented common knowledge in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture being described above and be shown in the drawings, and
And can without departing from the scope carry out various modifications and changes.The scope of the present invention is only limited by appended claim.
Claims (10)
1. a kind of high voltage isolator mechanical fault detection method, it is characterised in that the detection method includes：
During high voltage isolator divide-shut brake to be checked, to be checked high voltage isolator motor stator of the detection on slave computer
The current signal of any one phase in phase triple line；
The numbering of the current signal and the slave computer is sent to data acquisition device；
The data acquisition device is sampled according to preset sample frequency to the current signal, forms current data；
The numbering of the current data and the slave computer is sent to host computer by radio communication device；
Choose after the slave computer starts to divide-shut brake terminate between the current data；
The current data after by selection carries out Xi Er bit conversions, obtains current envelops data；
The current envelops data are carried out into wavelet filtering, current envelope curve is obtained；
The mark with the high voltage isolator model identical high voltage isolator to be checked is searched in default waveform database
Waveform；
Calculate the coefficient correlation between the current envelope curve and the reference waveform；
Judge the high voltage isolator to be checked with the presence or absence of the serious of mechanical breakdown and mechanical breakdown according to the coefficient correlation
Degree.
2. high voltage isolator mechanical fault detection method according to claim 1, it is characterised in that the default sampling
Frequency is the integral multiple of the intrinsic response frequency of system, and the preset sample frequency inherently responds frequency more than the system of twice
Rate.
3. high voltage isolator mechanical fault detection method according to claim 2, it is characterised in that the default sampling
Frequency is 400Hz.
4. high voltage isolator mechanical fault detection method according to claim 1, it is characterised in that by the electric current bag
Network data carry out wavelet filtering, and obtaining current envelope curve includes：
The current envelops data are carried out by 6 layers of decomposition by dmey small echos, 1-6 layers of high frequency coefficient is removed, the 6th layer of reconstruct
Low frequency coefficient, obtains the low frequency wave less than 4Hz, forms current envelope curve.
5. high voltage isolator mechanical fault detection method according to claim 1, it is characterised in that the Wave data
The foundation in storehouse includes：
High voltage isolator is debugged；
After debugging is normal, the current signal under the high voltage isolator normal operating condition is measured；
The current signal and the corresponding high voltage isolator model of the current signal are preserved, Wave data is formed
Storehouse.
6. high voltage isolator mechanical fault detection method according to claim 1, it is characterised in that the coefficient correlation
Computing formula be：
Wherein, r is coefficient correlation, xi、yiIt is two discrete signal sequences, n is sequence number
According to number,It is the average of two sequences.
7. high voltage isolator mechanical fault detection method according to claim 6, it is characterised in that according to the correlation
Coefficient judges that the high voltage isolator to be checked includes with the presence or absence of the order of severity of mechanical breakdown and mechanical breakdown：
If 0.85≤| r |≤1, the high voltage isolator to be checked is in normal condition；
If 0.55≤| r |<0.85, then the high voltage isolator to be checked there is mild mechanical failure；
If 0.25≤| r |<0.55, then the high voltage isolator to be checked there is significant mechanical failure；
If 0≤| r |<0.25, then the high voltage isolator to be checked is in the presence of very significant mechanical failure.
8. a kind of high voltage isolator mechanical fault detection device, it is characterised in that the detection means includes host computer and many
Individual slave computer, the host computer and multiple slave computers include the nothing in radio communication device, and the host computer
Line communicator is electrically connected the radio communication device in multiple slave computers；The host computer also includes and is located at
The main frame that the radio communication device in the host computer is connected, the slave computer also include electrical connection detection means and
Data acquisition device, the data acquisition device is electrically connected with the radio communication device in the slave computer.
9. high voltage isolator mechanical fault detection device according to claim 8, it is characterised in that the detection means
It is current sensor, the data acquisition device is A/D converter or data collecting card.
10. high voltage isolator mechanical fault detection device according to claim 8, it is characterised in that the channel radio
T unit is ZigBee module or RF903 modules.
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| CN108051190A (en) * | 2017-11-30 | 2018-05-18 | 国网江苏省电力有限公司检修分公司 | Disconnecting switch operating mechanism state analysis method based on main-shaft torque corner characteristic |
| CN108318810A (en) * | 2017-12-27 | 2018-07-24 | 国网北京市电力公司 | High voltage isolator fault determination method and device |
| CN108398635A (en) * | 2018-02-14 | 2018-08-14 | 武汉大学 | A kind of high voltage isolator mechanical defect diagnostic method based on output power of motor detection |
| CN108535649A (en) * | 2018-04-19 | 2018-09-14 | 国家电网公司 | A kind of disconnecting switch jam faults diagnostic method and device based on driving motor electric current |
| CN109584232A (en) * | 2018-11-28 | 2019-04-05 | 成都天衡智造科技有限公司 | Equipment use state on-line monitoring method, system and terminal based on image recognition |
| CN110068759A (en) * | 2019-05-22 | 2019-07-30 | 四川华雁信息产业股份有限公司 | A kind of fault type preparation method and device |
| CN110658008A (en) * | 2019-09-23 | 2020-01-07 | 红相股份有限公司 | Preliminary diagnosis method for three-phase box-separated GIS mechanical fault |
| CN112884070A (en) * | 2021-03-17 | 2021-06-01 | 云南电网有限责任公司电力科学研究院 | High-voltage switch fault diagnosis method based on transfer learning |
| CN115980566A (en) * | 2023-03-16 | 2023-04-18 | 南方电网调峰调频发电有限公司检修试验分公司 | Method and device for testing shutdown mode of electromechanical brake switch of pumped storage engine |
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| CN108051190A (en) * | 2017-11-30 | 2018-05-18 | 国网江苏省电力有限公司检修分公司 | Disconnecting switch operating mechanism state analysis method based on main-shaft torque corner characteristic |
| CN108051190B (en) * | 2017-11-30 | 2020-03-10 | 国网江苏省电力有限公司检修分公司 | Method for analyzing state of disconnecting switch control mechanism based on main shaft torque corner characteristics |
| CN108318810A (en) * | 2017-12-27 | 2018-07-24 | 国网北京市电力公司 | High voltage isolator fault determination method and device |
| CN108318810B (en) * | 2017-12-27 | 2021-07-20 | 国网北京市电力公司 | High-voltage isolating switch fault determination method and device |
| CN108398635A (en) * | 2018-02-14 | 2018-08-14 | 武汉大学 | A kind of high voltage isolator mechanical defect diagnostic method based on output power of motor detection |
| CN108535649A (en) * | 2018-04-19 | 2018-09-14 | 国家电网公司 | A kind of disconnecting switch jam faults diagnostic method and device based on driving motor electric current |
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| CN110068759A (en) * | 2019-05-22 | 2019-07-30 | 四川华雁信息产业股份有限公司 | A kind of fault type preparation method and device |
| CN110068759B (en) * | 2019-05-22 | 2021-11-09 | 华雁智能科技(集团)股份有限公司 | Fault type obtaining method and device |
| CN110658008A (en) * | 2019-09-23 | 2020-01-07 | 红相股份有限公司 | Preliminary diagnosis method for three-phase box-separated GIS mechanical fault |
| CN112884070A (en) * | 2021-03-17 | 2021-06-01 | 云南电网有限责任公司电力科学研究院 | High-voltage switch fault diagnosis method based on transfer learning |
| CN115980566A (en) * | 2023-03-16 | 2023-04-18 | 南方电网调峰调频发电有限公司检修试验分公司 | Method and device for testing shutdown mode of electromechanical brake switch of pumped storage engine |
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