CN106154122A - A kind of retrospective power cable detecting and controlling system - Google Patents
A kind of retrospective power cable detecting and controlling system Download PDFInfo
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- CN106154122A CN106154122A CN201510152290.6A CN201510152290A CN106154122A CN 106154122 A CN106154122 A CN 106154122A CN 201510152290 A CN201510152290 A CN 201510152290A CN 106154122 A CN106154122 A CN 106154122A
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- power cable
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Abstract
The present invention provides a kind of retrospective power cable detecting and controlling system, and it is connected with shelf depreciation test detector and Hi-pot Tester respectively, including: data acquisition unit, control unit, memory element and video monitoring power supply；Video monitor unit is for monitoring the process of the power cable detection of shelf depreciation test detector and Hi-pot Tester；Data acquisition unit is for Real-time Collection detection data and monitor video data；Control unit is used for controlling and guide power cable to detect, and controls video monitor unit and monitors the process of power cable detection in real time, detection data and monitor video data are integrated, analyze and process and judged；Memory element is for preserving the monitor video data through integrating and detection data and to the control of power cable detection, the process that guides, analyze and process and judge.The present invention uses existing detecting instrument, is greatly saved cost；And it is aided with video monitoring, make the testing result more cogency of power cable.
Description
Technical field
The present invention relates to the factory testing system of a kind of power cable, particularly relate to the detection of a kind of retrospective power cable and control
System.
Background technology
The raising required power supply reliability along with needs and the user of power system development, it is reliable that high-tension electricity equipment runs
Property receive the highest attention, but in electrical network, the Insulation Problems of cable is the most prominent, had a strong impact on power supply can
Raising by property.Research finds, it is closely related that the partial discharge quantity of cable is insulated from situation, the change indication of partial discharge quantity
Cable insulation and there may be the defect of harm cable running safety.
And, the inside of power cable existing defects sometimes, thus when causing power cable safe operation, there is great safety
Hidden danger.Further, power cable great majority are embedded in underground, and running environment is severe, safeguard and fault is detected the most relatively difficult.One
As, power cable defect uses pressure experiment to detect, and the capacity of experiment of high tension cable alternating-current voltage resistance test device can be expired
The requirement of experiment of three kilometers of 110KV high tension cables of foot, and, thermal capacity is to design, for whole during detection according to every phase 5min
The power cable of body, the power cable of detection entirety can completely bear the test of test voltage, thus whether judge power cable
Defective.
Therefore, power cable is required for the routine inspection tested through partial discharge test and industrial frequency withstand voltage when dispatching from the factory.Still,
During the practice examining of factory, tend not to operate according to standard-required.For example, for partial discharge test,
Before the test, it should carry out the demarcation of partial discharge quantity, the amplification of partial discharge quantity should not regulated during measurement once again；Carry out
During shelf depreciation boosting, it should be increased to 2U0Left and right keeps 10s, is slowly decreased to 1.73U the most again0, wherein U0Represent cable
Specified phase voltage；Further, if terminal is not handled well, shelf depreciation can trigger terminal electric discharge；Testing crew cannot differentiate
The difference that cable body electric discharge and interference electric discharge or terminal are discharged；Background noise is unsatisfactory for the requirement of test；If it occur that local
Electric discharge, should record the firing potential of shelf depreciation, type of Partial Discharge etc., in order to carry out failed test sample
Analyzing and processing etc..For pressure test, pressure-resistant time is unsatisfactory for standard-required etc..So will certainly cause underproof electric power
Cable flows out factory so that it is in use there is bigger potential safety hazard.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide the detection of a kind of retrospective power cable and controls
System, when being used for solving to use prior art to carry out power cable factory testing, it is impossible to is controlled and reduces the asking of detection process
Topic.
For achieving the above object and other relevant purposes, the present invention provides a kind of retrospective power cable detecting and controlling system, institute
State power cable detecting and controlling system to be connected with shelf depreciation test detector and Hi-pot Tester, including: data acquisition unit,
Control unit, memory element and video monitoring power supply；Wherein, described video monitor unit is used for monitoring the test of described shelf depreciation
The process of the power cable detection of detector and described Hi-pot Tester；Described data acquisition unit is for local described in Real-time Collection
The detection data of discharge test detector and described Hi-pot Tester and the monitor video data of described video monitor unit；Institute
State control unit for controlling and guide described Partial discharge detector and described Hi-pot Tester to carry out power cable detection；Control
Described video monitor unit monitors the process of the power cable detection of described Partial discharge detector and described Hi-pot Tester in real time；
The described detection data and the described monitor video data that gather described data acquisition unit are integrated, analyze and process and are judged；
Described memory element is for preserving the described monitor video data through integrating and described detection data, and preserves described control unit
The control that power cable is detected, the process guiding, analyze and process and judging.
Alternatively, the detection of described power cable is included the partial discharge detection carried out by described shelf depreciation test detector and passes through institute
State the resistance test that Hi-pot Tester is carried out.
Alternatively, described detection data include partial discharge detection data and resistance test data；The described monitor video data office of including puts
Detection monitor video data and resistance test monitor video data.
Alternatively, control subelement, pressure control subelement and video control subelement are put in the described control unit office of including；Wherein,
Control subelement is put for controlling, guide and analyze the described partial discharge detection of described Partial discharge detector in described office；Described pressure
Control subelement for controlling, guide and analyze the described resistance test of described Hi-pot Tester；Described video controls subelement and uses
The power cable detection of described Partial discharge detector and described Hi-pot Tester is monitored in real time in the described video monitor unit of control
Process；And it is corresponding that the described monitor video data collected by described data acquisition unit are carried out integration with described detection data.
Alternatively, described office puts control subelement and controls, guides and analyze described Partial discharge detector and include detecting described local
The sensitivity of discharge detector and the qualification rate of the described partial discharge detection of detection.
Alternatively, described office puts the sensitivity of the described Partial discharge detector of control subelement detection and includes: step S21, guides
And control described Partial discharge detector calibration shelf depreciation, and after shelf depreciation demarcation signal is stable, control described data acquisition
Collection unit gathers shelf depreciation scalar quantity and the current voltage value of described Partial discharge detector；Step S22, it is judged that described work as
Front magnitude of voltage: if described current voltage value is less than 0.5V, then judge that calibration shelf depreciation is carried out in the case of uncharged,
Jump to step S23；Otherwise, described power cable detecting and controlling system reports an error；Step S23, controls described data acquisition unit
Show value is put in the background interference values drawn game gathering described Partial discharge detector；Step S24, puts show value and institute according to described office
State background interference values and judge the sensitivity of described Partial discharge detector.
Alternatively, the sensitivity of described Partial discharge detector and the model of power cable are relevant.
Alternatively, described office puts the qualification rate of the control subelement described partial discharge detection of detection and includes: step S31, by described number
According to collecting unit according to acquisition time interval Real-time Collection detection voltage；Step S32, calculates partial discharge quantity according to detection voltage
Measured value；According to described background interference values and described shelf depreciation measurement, step S33, judges whether described partial discharge detection closes
Lattice.
Alternatively, described shelf depreciation measurement and the most qualified standard of described partial discharge detection all with the model phase of power cable
Close.
Alternatively, described power cable detecting and controlling system also includes Tip element.
As it has been described above, the retrospective power cable detecting and controlling system of the present invention, its based on existing Partial discharge detector and
Hi-pot Tester, supporting increase video monitor unit, by signals collecting, video monitoring and database information technology from existing
Some Partial discharge detectors and Hi-pot Tester direct collecting test data, and the monitoring coordinating video monitor unit to monitor regards
Frequency evidence, thus reduce the factory testing overall process of power cable, in order to help supervision and the check of related personnel.Further, originally
Invention is based on existing Partial discharge detector and Hi-pot Tester, simply at reviewed to the electric power electricity of its external connection present invention
Cable detecting and controlling system, can complete the partial discharge detection to power cable and the monitoring of resistance test, guide, analyze and judge,
It is greatly saved cost；Further, the detection data of often dish power cable can be carried out real-time storage by the present invention, raw for finding
Become problem present in manufacturing, be also aided with video except data and match, cable user is had more cogency；The present invention is permissible
Remotely monitor and call the detection data dispatched from the factory, make for the remotely prison of user and provide possibility, decrease and supervise the man power and material made
Cost.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of retrospective power cable detecting and controlling system disclosed in the embodiment of the present invention.
Fig. 2 is shown as retrospective power cable detecting and controlling system detection Partial discharge detector disclosed in the embodiment of the present invention
The schematic flow sheet of sensitivity.
Fig. 3 is shown as retrospective power cable detecting and controlling system disclosed in the embodiment of the present invention and judges the conjunction of described partial discharge detection
The schematic flow sheet of lattice rate.
Element numbers explanation
100 retrospective power cable detecting and controlling system
110 data acquisition units
120 control units
Put control subelement 121 innings
122 pressure control subelements
123 videos control subelement
130 memory element
140 video monitor unit
150 Tip elements
200 Partial discharge detectors
300 Hi-pot Testers
S21～S24 step
S31～S33 step
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by disclosed by this specification
Content understand other advantages and effect of the present invention easily.The present invention can also be added by the most different detailed description of the invention
To implement or application, the every details in this specification can also be based on different viewpoints and application, in the essence without departing from the present invention
Various modification or change is carried out under god.It should be noted that, the feature in the case of not conflicting, in following example and embodiment
Can be mutually combined.
It should be noted that the diagram provided in following example illustrates the basic conception of the present invention the most in a schematic way, then scheme
Component count, shape and size when only showing the assembly relevant with the present invention rather than implement according to reality in formula are drawn, in fact
When border is implemented, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout kenel is likely to the most multiple
Miscellaneous.
The retrospective power cable detecting and controlling system of the present invention, by signals collecting, video monitoring and database computer
Information technology from existing Partial discharge detector and Hi-pot Tester direct collecting test data, thus reduce power cable detection
Overall process, in order to help the supervision of related personnel and check.
Embodiment
Present embodiment discloses a kind of retrospective power cable detecting and controlling system 100, be applied to the factory testing of power cable.
As it is shown in figure 1, the retrospective power cable detecting and controlling system 100 of the present embodiment respectively with existing Partial discharge detector
200 and Hi-pot Tester 300.Control Partial discharge detector 200 and Hi-pot Tester 300 carry out the detection of power cable, and
Gather, analyze, process and preserve testing result.Partial discharge detector 200 and Hi-pot Tester 300 are all existing equipments.
Wherein.Partial discharge detector 200 and Hi-pot Tester 300 are all for detecting the insulating properties before power cable dispatches from the factory.
Wherein, Partial discharge detector 200 includes the Partial discharge detector possessing data processing function and does not possess data process
The Partial discharge detector of function.
When Partial discharge detector 200 possesses data processing function, the retrospective power cable detection of the present embodiment controls system
System 100 is to operate under WINDOWS system, and wherein WINDOWS system includes WINDOWS 95, WINDOWS
XP or WINDOWS 7.Power cable detecting and controlling system 100, from the software of Partial discharge detector 200, passes through bottom
Internal memory read technology, directly obtain test data, and by communication interface, the test data of acquisition be transferred to power cable inspection
Survey in control system 100.
When Partial discharge detector 200 does not possesses data processing function, the retrospective power cable detection of the present embodiment controls
System 100 directly gathers the local discharge signal of simulation.
Hi-pot Tester 300 is applied to detect the local defect of power cable, make moist and aging, and it utilizes one higher than normal work
The voltage made is added on power cable, continues the time of one section of regulation, if the voltage of superimposed only can produce the least electric leakage
Stream, then assert that the insulating properties of this power cable is preferable.At present, Hi-pot Tester 300 includes but not limited to that electrical insulation strength tries
Test instrument, dielectric strength tester etc..
The retrospective power cable detecting and controlling system 100 of the present embodiment as it is shown in figure 1, specifically include data acquisition unit 110,
Control unit 120, memory element 130, video monitor unit 140 and Tip element 150.The present embodiment except with shelf depreciation
Detector 200 and Hi-pot Tester 300 phase in succession outside, the most supporting add video monitor unit 140.Video monitor unit 140
For monitoring that user passes through Partial discharge detector 200 and Hi-pot Tester 300 detects the overall process of power cable in real time.Generally
In the case of, video monitor unit 140 is two sets, a set of partial discharge detection process for monitoring Partial discharge detector 200；One
Set is for monitoring the resistance test process of Hi-pot Tester 300.
Data acquisition unit 110 is for Real-time Collection Partial discharge detector 200 and the inspection of the power cable of Hi-pot Tester 300
Survey data and the monitor video data of video monitor unit 140.Wherein, the detection data of power cable include partial discharge detection
Data and resistance test data；Monitor video data include partial discharge detection monitor video data and resistance test monitor video data.
Control unit 120 is used for controlling and guide Partial discharge detector 200 and Hi-pot Tester 300 to examine power cable
Survey；Control the inspection that video monitor unit 140 monitors the power cable of Partial discharge detector 200 and Hi-pot Tester 300 in real time
Survey process；The detection data and the monitor video data that gather data acquisition unit 110 were integrated according to the time, and at analysis
Reason judges testing result.
For convenient management, control subelement 121, pressure control subelement 122 and video control are put in control unit 120 office of being divided into
Subunit 123.
Office put control subelement 121 for the partial discharge detection Data Control gathered according to data acquisition unit 110, guide and analyze
The Partial discharge detector 200 detection to power cable.Specifically include: detect the sensitivity of Partial discharge detector 200 and sentence
Determine the qualification rate of partial discharge detection.
The process of the sensitivity of the detection Partial discharge detector 200 controlling subelement 121 is put as in figure 2 it is shown, include in office:
Step S21, guides and controls Partial discharge detector 200 and calibrate shelf depreciation, and stable at shelf depreciation demarcation signal
After, control data acquisition unit 110 and gather shelf depreciation scalar quantity and the current voltage value of Partial discharge detector 200:
After retrospective power cable detecting and controlling system 100 brings into operation 5s, retrospective power cable detecting and controlling system
100 can point out " shelf depreciation calibration operation can start " automatically, and this prompting includes but not limited to voice message.Then, when
After shelf depreciation demarcation signal is stable, carried out the collection of shelf depreciation scalar quantity and current voltage value by data acquisition unit 110.
Further, the acquisition time of shelf depreciation scalar quantity and current voltage value is 10s, and after 10s, data acquisition unit 110 is automatically switched off
Acquisition function.
Step S22, it is judged that current voltage value: if current voltage value is less than 0.5V, then judge calibration shelf depreciation be without
Carry out in the case of electricity, jump to step S23；Otherwise, then it is assumed that calibration shelf depreciation is carried out in the case of charged,
In the case of charged, carry out calibrating shelf depreciation do not meet power cable factory testing specification, therefore, this situation occurs,
Retrospective power cable detecting and controlling system 100 can show automatically in operation mistake language hurdle: shelf depreciation calibration should
Calibrating in the case of not charged, this operation does not meets standard-required.
If additionally, retrospective power cable detecting and controlling system 100 operationally between more than 30s, the most do not carry out local
Discharge gauged collection, and, now corresponding current voltage value is more than 0.5V, then the detection control of retrospective power cable
System 100 processed can show automatically in operation mistake language hurdle: should first carry out shelf depreciation demarcation, carry out a liter electricity the most again
Pressure, this operation does not meets standard-required.
Step S23, controls data acquisition unit 110 and gathers the background interference values of Partial discharge detector 200 and gather first
Shelf depreciation value in time, and extraction office puts show value.
The shelf depreciation value of the Partial discharge detector 200 that data acquisition unit 110 gathers in the first acquisition time is a number
According to set, the shelf depreciation value extracting probability of occurrence in this data acquisition system the highest puts show value as office.
Step S24, puts show value according to office and background interference values judges the sensitivity of Partial discharge detector 200:
For different power cable models, the standard of the sensitivity of its Partial discharge detector 200 is different:
If power cable model is " 38/66,64/110,127/220 or 290/500 ", it is judged that background interference values * (put by office
Show value/shelf depreciation scalar quantity) whether more than 2.5: if it is greater, then retrospective power cable detecting and controlling system 100
Show in operation mistake language hurdle: partial discharge test system sensitivity does not meets standard-required；If it is not greater, then
Judge that the sensitivity of Partial discharge detector 200 meets the standard-required of power cable detection；
If power cable model is other models, then judge that background interference values/(show value/shelf depreciation scalar quantity is put in office) is
No it is more than 5: if it is greater, then retrospective power cable detecting and controlling system 100 shows in operation mistake language hurdle:
Partial discharge test system sensitivity does not meets standard-required；If it is not greater, then judge the sensitive of Partial discharge detector 200
Degree meets the standard-required of power cable detection.
Office puts control subelement 121 and meets the standard-required of power cable detection in the sensitivity judging Partial discharge detector 200
After, according to step as shown in Figure 3 carry out judge partial discharge detection qualification rate:
Step S31, by data acquisition unit 110 according to acquisition time interval Real-time Collection detection electricity in the second acquisition time
Pressure, in the present embodiment, the second acquisition time is 10s.
Step S32, according to detection voltage calculating partial discharge quantity measured value:
Same, for different cable models, the method calculating shelf depreciation measurement is also different.General cable
Model is defined by phase voltage and line voltage, and such as cable model is 38/66, then identify the specified phase electricity of this cable
Pressure is 38kV, and rated line voltage is 66kV.
If cable model is " 38/66,64/110,127/220 or 290/500 ", it is extracted in (1.03 × 1.5 × cable
Specified phase voltage, the specified phase voltage of 0.97 × 1.5 × cable) in the range of detection voltage, and, the detection voltage of extraction
Number is V, and meets V × acquisition time interval more than 10, then the magnitude of voltage of the partial discharge quantity of Resurvey 10s；System
Count the highest data of the magnitude of voltage probability of occurrence of the partial discharge quantity gathered in this 10s as shelf depreciation measurement E；If V
× acquisition time interval is less than or equal to 10, then retrospective power cable detecting and controlling system 100 can report an error；
If cable is other models, then it is extracted in (the specified phase voltage of 1.03 × 1.73 cables, the volume of 0.97 × 1.73 × cable
Phasing voltage) in the range of detection voltage；Further, the number of the detection voltage of extraction is V, and meets between V × acquisition time
Every more than 10, then the magnitude of voltage of the partial discharge quantity of Resurvey 10s, and add up the interior partial discharge quantity gathered of this 10s
The highest data of magnitude of voltage probability of occurrence are as shelf depreciation measurement E；If V × acquisition time interval is less than or equal to 10,
The most retrospective power cable detecting and controlling system 100 can report an error；
Further, for the cable of different model, if met in detection number of voltages V extracted: V × acquisition time interval is big
In 10 time, the most retrospective power cable detecting and controlling system 100 meeting prompting automatically " gather the magnitude of voltage of partial discharge quantity, and
And after 10s, it is automatically switched off this acquisition function "；
Further, if met in detection number of voltages V extracted: when V × acquisition time interval is more than 20, data acquisition
Unit 110 does not also carry out the collection of the magnitude of voltage of partial discharge quantity, and the most retrospective current cable detecting and controlling system 100 is behaviour
Make miscue language hurdle shows: " gathering the magnitude of voltage of partial discharge quantity the most in time, do not meet standard-required "；
Further, if data acquisition unit 110 is more than 65s to the acquisition time of the magnitude of voltage of partial discharge quantity, can chase after
The current cable detecting and controlling system 100 traced back shows in operation mistake language hurdle: " shelf depreciation intensifies voltage time mistake
Long, do not meet standard-required "
Step S33, according to background interference values and partial discharge quantity measured value E, it is judged that the partial discharge detection of cable is the most qualified:
If cable model is " 38/66,64/110,127/220 or 290/500 ", shelf depreciation measurement meets: E < 2
The amplification of × ambient interferences/partial discharge quantity, and ambient interferences/partial discharge quantity amplification < 5, then judge the office of cable
Put detection qualified, the most defective；
If cable is other models, shelf depreciation measurement E meets: the times magnification of E < 2 × ambient interferences/partial discharge quantity
Number, and ambient interferences/partial discharge quantity amplification < when 10, then judge that the partial discharge detection of cable is qualified, the most defective.
Wherein, the amplification of partial discharge quantity is set in advance according to actually detected requirement.
Pressure control subelement 122 is used for the resistance test Data Control according to data acquisition unit 110 collection, guides and analyze
The Hi-pot Tester 300 resistance test to power cable.
For the cable of different model, test voltage and detection time when it carries out resistance test are different.
If cable model is " 38/66,64/110,127/220 or 290/500 ", then carry out the test voltage of resistance test
It is greater than the specified phase voltage of 0.97 × 2.5 × cable, and the detection time is greater than 30 minutes.In test voltage and detection time
When meeting above-mentioned requirements, then judge that the resistance test of power cable is passed through.
If cable model is " 3.6/6,6/6,8.7/10,8.7/15,12/20 or 18/30 ", then carry out the examination of resistance test
Electrical verification pressure is greater than the specified phase voltage of 0.97 × 3.5 × cable, and the detection time is greater than 5 minutes.When test voltage and detection
Between when meeting above-mentioned requirements, then judge that the resistance test of power cable is passed through.
If cable model is 21/35 or 26/35, then the test voltage carrying out resistance test is greater than 0.97 × 3.5 × cable
Specified phase voltage, and the detection time be greater than 5 minutes；Or test voltage is more than the specified phase voltage of 0.97 × 2.5 × cable,
And the detection time was more than 3 minutes.When test voltage and detection time meet above-mentioned requirements, then judge the pressure inspection of power cable
Survey is passed through.
Further, when power cable is carried out resistance test, data acquisition unit 110 Real-time Collection Hi-pot Tester 300
Voltage signal (i.e. test voltage), to guarantee test voltage during resistance test.
Video control subelement 123 is used for controlling video monitor unit 140 and monitors Partial discharge detector 200 and pressure survey in real time
Examination instrument 300；And it is corresponding that with detection data, the monitor video data collected by data acquisition unit 110 are carried out integration.Root
According to monitor video data and the classification of detection data, and the time that the time of monitor video data and power cable detection are carried out enters
Row is integrated.The partial discharge detection data of identical time are corresponding with partial discharge detection monitor video Data Integration；The pressure inspection of identical time
It is corresponding that survey data carry out integration with resistance test monitor video data.
Memory element 130 is for preserving the monitor video data through integrating and detection data, and it is right to preserve control unit 120
The partial discharge detection of power cable and the analyzing and processing of resistance test guide and decision process.
Tip element 150 for carrying out shelf depreciation demarcation, Partial Discharge Detection and resistance to according to control unit 120 to power cable
Analysis process during pressure detection is pointed out.Such as, when detecting the sensitivity of Partial discharge detector 200, retrospective
Power cable detecting and controlling system 100 brings into operation after 5s, and " shelf depreciation calibration operation can in Tip element 150 meeting prompting automatically
To start "；When the current voltage value that data acquisition unit 110 gathers is more than 0.5V, Tip element 150 can show automatically:
Shelf depreciation calibration should be calibrated in the case of not charged, and this operation does not meets standard-required.
Additionally, the retrospective power cable detecting and controlling system 100 of the present embodiment also includes that a client is (attached in description
Figure indicates) for checking and call detection process and the data of power cable detecting and controlling system 100.Further, this visitor
The position of family end according to actual needs, i.e. may be provided at Partial discharge detector 200 and the vicinity of Hi-pot Tester 300, it is possible to
It is disposed at Partial discharge detector 200 and the far-end of Hi-pot Tester 300, to facilitate user to check.
In sum, the retrospective power cable detecting and controlling system of the present invention, its based on existing Partial discharge detector and
Hi-pot Tester, simply at reviewed to the power cable detecting and controlling system of its external connection present invention, can complete electric power electricity
The partial discharge detection of cable and the monitoring of resistance test, guide, analyze and judge, be greatly saved cost；Further, the present invention can
The detection data of often dish power cable are carried out real-time storage, discovery is generated to problem present in manufacturing, except data are the most auxiliary
Match with video, cable user is had more cogency；The present invention can remotely monitor and call the detection data dispatched from the factory, for
The remotely prison of user is made and is provided possibility, decreases man power and material's cost that prison is made.So, the present invention effectively overcomes existing
Various shortcoming in technology and have high industrial utilization.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any it is familiar with this skill
Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage of art.Therefore, such as
All that in art, tool usually intellectual is completed under without departing from disclosed spirit and technological thought etc.
Effect is modified or changes, and must be contained by the claim of the present invention.
Claims (10)
1. a retrospective power cable detecting and controlling system, it is characterised in that: described power cable detecting and controlling system respectively with office
Portion's discharge test detector is connected with Hi-pot Tester, including: data acquisition unit, control unit, memory element and video
Monitoring power supply；Wherein,
Described video monitor unit is for monitoring described shelf depreciation test detector and the power cable of described Hi-pot Tester
The process of detection；
Described data acquisition unit is for shelf depreciation test detector and the detection of described Hi-pot Tester described in Real-time Collection
The monitor video data of data and described video monitor unit；
Described control unit is used for controlling and guide described Partial discharge detector and described Hi-pot Tester to carry out power cable
Detection, controls described video monitor unit and monitors described Partial discharge detector and the power cable of described Hi-pot Tester in real time
The process of detection, the described detection data and the described monitor video data that gather described data acquisition unit carry out whole splitting or integrating
Analysis processes and judges；
Described memory element is for preserving the described monitor video data through integrating and described detection data, and preserves described control
Control that power cable is detected by unit processed, the process guiding, analyze and process and judging.
Retrospective power cable detecting and controlling system the most according to claim 1, it is characterised in that: described power cable detects
Including the partial discharge detection carried out by described shelf depreciation test detector and the pressure inspection carried out by described Hi-pot Tester
Survey.
Retrospective power cable detecting and controlling system the most according to claim 2, it is characterised in that: described detection data include
Partial discharge detection data and resistance test data；Described monitor video data include partial discharge detection monitor video data and resistance test
Monitor video data.
Retrospective power cable detecting and controlling system the most according to claim 2, it is characterised in that: described control unit includes
Office puts control subelement, pressure control subelement and video and controls subelement；Wherein,
Control subelement is put for controlling, guide and analyze the described partial discharge detection of described Partial discharge detector in described office；
Described pressure control subelement is for controlling, guide and analyze the described resistance test of described Hi-pot Tester；
Described video control subelement is used for controlling described video monitor unit and monitors described Partial discharge detector and institute in real time
State the process of the power cable detection of Hi-pot Tester, and the described monitor video that will be collected by described data acquisition unit
It is corresponding that data carry out integration with described detection data.
Retrospective power cable detecting and controlling system the most according to claim 4, it is characterised in that: it is single that control is put in described office
Unit controls, guides and analyzes described Partial discharge detector and includes detecting the sensitivity of described Partial discharge detector and judge institute
State the qualification rate of partial discharge detection.
Retrospective power cable detecting and controlling system the most according to claim 5, it is characterised in that: it is single that control is put in described office
Unit detects the sensitivity of described Partial discharge detector and includes:
Step S21, guides and controls described Partial discharge detector calibration shelf depreciation, and steady at shelf depreciation demarcation signal
After Ding, control described data acquisition unit and gather shelf depreciation scalar quantity and the current voltage of described Partial discharge detector
Value；
Step S22, it is judged that described current voltage value: if described current voltage value is less than 0.5V, then judge that calibration local is put
Electricity is carried out in the case of uncharged, jumps to step S23；Otherwise, described power cable detecting and controlling system reports an error；
Step S23, display is put in the background interference values drawn game controlling the described Partial discharge detector of described data acquisition unit collection
Value；
Step S24, puts show value according to described office and described background interference values judges the sensitive of described Partial discharge detector
Degree.
Retrospective power cable detecting and controlling system the most according to claim 6, it is characterised in that: described Partial Discharge Detection
The sensitivity of instrument is relevant to the model of power cable.
Retrospective power cable detecting and controlling system the most according to claim 6, it is characterised in that: it is single that control is put in described office
Unit judges that the qualification rate of described partial discharge detection includes:
Step S31, by described data acquisition unit according to acquisition time interval Real-time Collection detection voltage；
Step S32, calculates partial discharge quantity measured value according to described detection voltage；
According to described background interference values and described shelf depreciation measurement, step S33, judges whether described partial discharge detection closes
Lattice.
Retrospective power cable detecting and controlling system the most according to claim 8, it is characterised in that: described shelf depreciation measures
The standard that value is the most qualified with described partial discharge detection is all relevant to the model of power cable.
Retrospective power cable detecting and controlling system the most according to claim 8, it is characterised in that: described power cable is examined
Survey control system and also include Tip element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152290.6A CN106154122A (en) | 2015-04-01 | 2015-04-01 | A kind of retrospective power cable detecting and controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152290.6A CN106154122A (en) | 2015-04-01 | 2015-04-01 | A kind of retrospective power cable detecting and controlling system |
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| Publication Number | Publication Date |
|---|---|
| CN106154122A true CN106154122A (en) | 2016-11-23 |
Family
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| CN201510152290.6A Pending CN106154122A (en) | 2015-04-01 | 2015-04-01 | A kind of retrospective power cable detecting and controlling system |
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| CN113884824A (en) * | 2021-08-13 | 2022-01-04 | 杭州龙源电力有限公司 | Cable voltage withstand test method based on ultralow frequency voltage |
| CN115222741A (en) * | 2022-09-20 | 2022-10-21 | 江苏昱恒电气有限公司 | Cable surface defect detection method |
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