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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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 invention relates to a factory detection system of a power cable, in particular to a traceable power cable detection control system.
Background
With the development requirement of an electric power system and the improvement of the requirement of a user on the power supply reliability, the operation reliability of high-voltage power equipment is more and more emphasized, but the insulation problem of a cable in a power grid is more and more prominent, and the improvement of the power supply reliability is seriously influenced. Researches find that the partial discharge amount of the cable is closely related to the insulation condition of the cable, and the change of the partial discharge amount indicates that the cable insulation has the defect of damaging the safe operation of the cable.
In addition, defects sometimes exist in the power cable, so that great potential safety hazards exist in safe operation of the power cable. Moreover, most of the power cables are buried underground, the operating environment is severe, and the maintenance and fault detection are difficult. Generally, the defects of the power cable are detected by adopting a withstand voltage test, the test capacity of the alternating-current withstand voltage test device for the high-voltage cable can meet the test requirement of the 110KV high-voltage cable with three kilometers, and the thermal capacity is designed according to 5min of each phase, and the overall power cable can be tested by detecting the test that the overall power cable can completely bear the test voltage during detection, so that whether the power cable has the defects or not is judged.
Therefore, the power cable is required to be subjected to routine tests of a partial discharge test and a power frequency withstand voltage test when being shipped from a factory. However, in the actual inspection process of a factory, it is often not possible to operate according to standard requirements. For example, for a partial discharge test, before the test, the calibration of the partial discharge amount should be performed, and the amplification factor of the partial discharge amount should not be adjusted again during the measurement; when partial discharge boosting is performed, it should be raised to 2U0Left and right for 10s, and then slowly reduced to 1.73U0Wherein U is0Representing a nominal phase voltage of the cable; and, if the terminal is not well treated, the partial discharge may cause the terminal discharge; a tester cannot distinguish the difference between the cable body discharge and the interference discharge or the terminal discharge; the background noise does not meet the requirements of the test; if a partial discharge occurs, the initial discharge voltage of the partial discharge, the type of partial discharge waveform, and the like should be recorded in order to perform analysis processing on a non-conforming sample, and the like. And the withstand voltage test does not meet the standard requirement on withstand voltage time and the like. Therefore, unqualified power cables are inevitably caused to flow out of factories, and great potential safety hazards exist in the use process of the power cables.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a traceable power cable detection control system, which is used to solve the problem that the control and recovery detection process cannot be performed when the power cable is factory detected by using the prior art.
In order to achieve the above and other related objects, the present invention provides a traceable power cable detection control system, which is connected to a partial discharge test detector and a withstand voltage tester, and includes: the device comprises a data acquisition unit, a control unit, a storage unit and a video monitoring power supply; the video monitoring unit is used for monitoring the process of detecting the power cables of the partial discharge test detector and the withstand voltage tester; the data acquisition unit is used for acquiring the detection data of the partial discharge test detector and the withstand voltage tester and the monitoring video data of the video monitoring unit in real time; the control unit is used for controlling and guiding the partial discharge detector and the withstand voltage tester to carry out power cable detection; controlling the video monitoring unit to monitor the process of detecting the power cables of the partial discharge detector and the withstand voltage tester in real time; integrating, analyzing, processing and judging the detection data and the monitoring video data acquired by the data acquisition unit; the storage unit is used for storing the integrated monitoring video data and the integrated detection data and storing the processes of control, guidance, analysis processing and judgment of the control unit on the power cable detection.
Optionally, the power cable detection includes partial discharge detection performed by the partial discharge test detector and withstand voltage detection performed by the withstand voltage tester.
Optionally, the detection data includes partial discharge detection data and withstand voltage detection data; the monitoring video data comprises partial discharge detection monitoring video data and withstand voltage detection monitoring video data.
Optionally, the control unit includes a partial discharge control subunit, a withstand voltage control subunit, and a video control subunit; the partial discharge control subunit is used for controlling, guiding and analyzing the partial discharge detection of the partial discharge detector; the voltage-resistant control subunit is used for controlling, guiding and analyzing the voltage-resistant detection of the voltage-resistant tester; the video control subunit is used for controlling the video monitoring unit to monitor the process of detecting the power cables of the partial discharge detector and the withstand voltage tester in real time; and integrating and corresponding the monitoring video data acquired by the data acquisition unit with the detection data.
Optionally, the partial discharge control subunit controls, guides, and analyzes the partial discharge detector, including detecting a sensitivity of the partial discharge detector and detecting a qualification rate of the partial discharge detection.
Optionally, the detecting the sensitivity of the partial discharge detector by the partial discharge control subunit includes: step S21, guiding and controlling the partial discharge detector to calibrate partial discharge, and controlling the data acquisition unit to acquire the partial discharge calibration quantity and the current voltage value of the partial discharge detector after the partial discharge calibration signal is stable; step S22, determining that the current voltage value: if the current voltage value is less than 0.5V, judging that the calibration partial discharge is carried out under the condition of no electricity, and jumping to step S23; otherwise, the power cable detection control system reports an error; step S23, controlling the data acquisition unit to acquire a background interference value and an partial discharge display value of the partial discharge detector; step S24, determining the sensitivity of the partial discharge detector according to the partial discharge display value and the background interference value.
Optionally, the sensitivity of the partial discharge detector is related to the type of power cable.
Optionally, the detecting, by the partial discharge control subunit, the qualification rate of the partial discharge detection includes: step S31, acquiring detection voltage in real time according to acquisition time interval through the data acquisition unit; step S32, calculating a partial discharge quantity measured value according to the detection voltage; and step S33, judging whether the partial discharge detection is qualified or not according to the background interference value and the measured value of the partial discharge amount.
Optionally, the partial discharge amount measurement value and the criterion whether the partial discharge detection is qualified are both related to the model of the power cable.
Optionally, the power cable detection control system further comprises a prompting unit.
As described above, the traceable power cable detection control system of the present invention is based on the existing partial discharge detector and the existing voltage withstanding tester, and the video monitoring unit is added in a matching manner, and directly collects the test data from the existing partial discharge detector and the existing voltage withstanding tester through the information technologies such as signal collection, video monitoring, and database, etc., and cooperates with the monitoring video data monitored by the video monitoring unit, so as to restore the whole process of factory detection of the power cable, so as to help the supervision and reexamination of the relevant personnel. Moreover, the invention is based on the existing partial discharge detector and voltage-withstanding tester, and the traceable power cable detection control system is only connected outside the partial discharge detector and the voltage-withstanding tester, so that the monitoring, guiding, analyzing and judging of the partial discharge detection and the voltage-withstanding detection of the power cable can be completed, and the cost is greatly saved; moreover, the invention can store the detection data of each power cable in real time, and for finding the problems in the generation and manufacture, the data is matched with the video, so that the invention is more convincing to cable users; the invention can remotely monitor and call factory detection data, provides possibility for remote monitoring and manufacturing of users, and reduces the cost of manpower and material resources for monitoring and manufacturing.
Drawings
Fig. 1 is a schematic structural diagram of a traceable power cable detection control system according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart illustrating the sensitivity of the partial discharge detector detected by the traceable power cable detection control system according to the embodiment of the invention.
Fig. 3 is a schematic flow chart illustrating the process of determining the qualification rate of the partial discharge detection by the traceable power cable detection control system according to the embodiment of the invention.
Description of the element reference numerals
100 traceable power cable detection control system
110 data acquisition unit
120 control unit
121 partial discharge control subunit
122 voltage-resistant control subunit
123 video control subunit
130 memory cell
140 video monitoring unit
150 prompt unit
200 partial discharge detector
300 withstand voltage tester
S21-S24
S31-S33
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The traceable power cable detection control system directly collects test data from the existing partial discharge detector and withstand voltage tester through computer information technologies such as signal collection, video monitoring and database, and the like, so that the whole process of power cable detection is restored, and supervision and reexamination of related personnel are facilitated.
Examples
The embodiment discloses a traceable power cable detection control system 100, which is applied to factory detection of a power cable. As shown in fig. 1, the traceable power cable detection control system 100 of the present embodiment is respectively connected with a conventional partial discharge detector 200 and a withstand voltage tester 300. And controlling the partial discharge detector 200 and the withstand voltage tester 300 to detect the power cable, and acquiring, analyzing, processing and storing a detection result. The partial discharge detector 200 and the withstand voltage tester 300 are conventional devices. Wherein. The partial discharge detector 200 and the withstand voltage tester 300 are both used for detecting the insulation performance of the power cable before delivery.
The partial discharge detector 200 includes a partial discharge detector with a data processing function and a partial discharge detector without a data processing function.
When the partial discharge detector 200 has a data processing function, the traceable power cable detection control system 100 of the present embodiment operates in WINDOWS systems, wherein the WINDOWS systems include WINDOWS 95, WINDOWS sxp, or WINDOWS 7. The power cable detection control system 100 directly obtains test data from software of the partial discharge detector 200 through a bottom-layer memory reading technology, and transmits the obtained test data to the power cable detection control system 100 through a communication interface.
When the partial discharge detector 200 does not have the data processing function, the traceable power cable detection control system 100 of the present embodiment directly collects the simulated partial discharge signal.
The withstand voltage tester 300 is applied to detect local defects, moisture and aging of a power cable by applying a voltage higher than a normal operation to the power cable for a predetermined time, and if the applied voltage causes only a small leakage current, it is determined that the insulation of the power cable is good. Currently, the withstand voltage tester 300 includes, but is not limited to, an electrical insulation strength tester, a dielectric strength tester, and the like.
As shown in fig. 1, the traceable power cable detection control system 100 of the present embodiment specifically includes a data acquisition unit 110, a control unit 120, a storage unit 130, a video monitoring unit 140, and a prompting unit 150. In addition to being connected to the partial discharge detector 200 and the withstand voltage tester 300, the present embodiment is further provided with a video monitoring unit 140. The video monitoring unit 140 is used to monitor the whole process of the user detecting the power cable in real time through the partial discharge detector 200 and the withstand voltage tester 300. In general, there are two sets of video monitoring units 140, one set of which is used for monitoring the partial discharge detection process of the partial discharge detector 200; one set is used for monitoring the withstand voltage testing process of withstand voltage tester 300.
The data acquisition unit 110 is configured to acquire, in real time, detection data of the power cables of the partial discharge detector 200 and the withstand voltage tester 300 and monitoring video data of the video monitoring unit 140. The detection data of the power cable comprises partial discharge detection data and withstand voltage detection data; the monitoring video data comprises partial discharge detection monitoring video data and withstand voltage detection monitoring video data.
The control unit 120 is used for controlling and guiding the partial discharge detector 200 and the withstand voltage tester 300 to detect the power cable; controlling the video monitoring unit 140 to monitor the detection process of the power cables of the partial discharge detector 200 and the withstand voltage tester 300 in real time; the detection data and the monitoring video data collected by the data collection unit 110 are integrated according to time, and the detection result is analyzed, processed and judged.
For convenience of management, the control unit 120 is divided into an partial discharge control subunit 121, a withstand voltage control subunit 122, and a video control subunit 123.
The partial discharge control subunit 121 is configured to control, guide and analyze the detection of the power cable by the partial discharge detector 200 according to the partial discharge detection data collected by the data collection unit 110. The method specifically comprises the following steps: the sensitivity of the partial discharge detector 200 is detected and the qualification rate of the partial discharge detection is determined.
The process of detecting the sensitivity of the partial discharge detector 200 of the partial discharge control subunit 121 is shown in fig. 2, and includes:
step S21, the partial discharge detector 200 is directed and controlled to calibrate the partial discharge, and after the partial discharge calibration signal is stable, the data acquisition unit 110 is controlled to acquire the partial discharge calibration amount and the current voltage value of the partial discharge detector 200:
after the traceable power cable detection control system 100 starts running for 5s, the traceable power cable detection control system 100 automatically prompts "the partial discharge calibration work can start", which includes but is not limited to voice prompt. Then, when the partial discharge calibration signal is stable, the data acquisition unit 110 acquires the partial discharge calibration amount and the current voltage value. And, the acquisition time of the partial discharge calibration quantity and the current voltage value is 10s, and after 10s, the data acquisition unit 110 automatically closes the acquisition function.
Step S22, determining the current voltage value: if the current voltage value is less than 0.5V, judging that the calibration partial discharge is carried out under the condition of no electricity, and jumping to the step S23; otherwise, the calibration partial discharge is considered to be performed under the condition of electrification, and the calibration partial discharge performed under the condition of electrification does not conform to the factory inspection specification of the power cable, so that the traceable power cable inspection control system 100 automatically displays the following conditions in the operation error prompt language column: the partial discharge calibration should be calibrated without charging, which operation does not meet the standard requirements.
In addition, if the traceable power cable detection and control system 100 has a working time exceeding 30s, and the partial discharge calibration amount is still not collected, and the corresponding current voltage value is greater than 0.5V, the traceable power cable detection and control system 100 automatically displays in the operation error prompt language column: the partial discharge calibration should be performed first, and then the voltage boosting should be performed, and the operation does not meet the standard requirement.
In step S23, the data acquisition unit 110 is controlled to acquire the background interference value of the partial discharge detector 200 and the partial discharge value in the first acquisition time, and extract the partial discharge display value.
The partial discharge value of the partial discharge detector 200 acquired by the data acquisition unit 110 in the first acquisition time is a data set, and the partial discharge value with the highest occurrence probability in the data set is extracted as the partial discharge display value.
Step S24, determining the sensitivity of the partial discharge detector 200 according to the partial discharge display value and the background interference value:
the sensitivity of the partial discharge detector 200 is not standardized for different power cable models:
if the power cable model is '38/66, 64/110, 127/220 or 290/500', judging whether the background interference value (partial discharge display value/partial discharge calibration quantity) is more than 2.5: if so, the traceable power cable detection control system 100 displays in the operation error prompt language field: the sensitivity of the partial discharge test system does not meet the standard requirement; if not, judging that the sensitivity of the partial discharge detector 200 meets the standard requirement of power cable detection;
if the power cable model is other models, judging whether the background interference value/(partial discharge display value/partial discharge calibration quantity) is more than 5: if so, the traceable power cable detection control system 100 displays in the operation error prompt language field: the sensitivity of the partial discharge test system does not meet the standard requirement; and if the partial discharge detection value is not greater than the preset value, the sensitivity of the partial discharge detector 200 is judged to meet the standard requirement of power cable detection.
After determining that the sensitivity of the partial discharge detector 200 meets the standard requirement of power cable detection, the partial discharge control subunit 121 performs the determination of the qualification rate of the partial discharge detection according to the steps shown in fig. 3:
in step S31, the data acquisition unit 110 acquires the detection voltage in real time at the acquisition time interval within the second acquisition time, which is 10S in this embodiment.
Step S32, calculating a partial discharge amount measurement value from the detection voltage:
likewise, the method of calculating the partial discharge measurement is different for different cable models. Typically the cable type is defined by phase voltages and line voltage, for example cable type 38/66, indicating that the cable is rated for 38kV phase voltage and 66kV line voltage.
If the cable model is '38/66, 64/110, 127/220 or 290/500', extracting detection voltages within the range of (1.03 × 1.5 × rated phase voltage of the cable, 0.97 × 1.5 × rated phase voltage of the cable), and the number of the extracted detection voltages is V and satisfies that the V × acquisition time interval is more than 10, re-acquiring the voltage value of the partial discharge amount of 10 s; counting data with the highest occurrence probability of the voltage value of the local discharge quantity collected within 10s as a local discharge quantity measured value E; if the vxacquisition time interval is less than or equal to 10, the traceable power cable detection control system 100 will report an error;
if the cable is of other models, extracting a detection voltage in a range of (the rated phase voltage of the cable is 1.03 multiplied by 1.73, and the rated phase voltage of the cable is 0.97 multiplied by 1.73); if the number of the extracted detection voltages is V and V multiplied by the acquisition time interval is more than 10, re-acquiring the voltage value of the partial discharge quantity of 10s, and counting the data with the highest occurrence probability of the voltage value of the partial discharge quantity acquired in 10s as a partial discharge quantity measured value E; if the vxacquisition time interval is less than or equal to 10, the traceable power cable detection control system 100 will report an error;
and, for cables of different models, if the number V of the extracted detection voltages satisfies: when the time interval of the acquisition is greater than 10, the traceable power cable detection control system 100 automatically prompts that the voltage value of the local discharge amount is acquired, and the acquisition function is automatically closed after 10 s;
further, if the number V of the detection voltages extracted satisfies: when the vxcollecting time interval is greater than 20, the data collecting unit 110 has not collected the voltage value of the partial discharge amount, and the traceable current cable detection control system 100 displays in the operation error prompt language field: "the voltage value of the partial discharge amount is not collected in time and does not meet the standard requirement";
further, if the data collection unit 110 collects the voltage value of the partial discharge amount for a time period longer than 65s, the traceable current cable detection control system 100 displays in the operation error prompt language field: local discharge exciting voltage too long to meet standard requirement "
Step S33, according to the background interference value and the measured value E of the partial discharge quantity, judging whether the partial discharge detection of the cable is qualified:
if the cable model is "38/66, 64/110, 127/220 or 290/500", the partial discharge amount measurement value satisfies: e is less than 2 multiplied by the amplification factor of the background interference/local discharge amount, and the amplification factor of the background interference/local discharge amount is less than 5, the partial discharge detection of the cable is judged to be qualified, otherwise, the partial discharge detection of the cable is not qualified;
if the cable is of other types, the measured value E of the partial discharge quantity meets the following conditions: and E is less than 2 multiplied by the amplification factor of the background interference/partial discharge amount, and when the amplification factor of the background interference/partial discharge amount is less than 10, the partial discharge detection of the cable is judged to be qualified, otherwise, the partial discharge detection of the cable is not qualified.
Wherein, the magnification of the partial discharge amount is preset according to the requirement of actual detection.
The voltage withstand control subunit 122 is configured to control, direct and analyze the voltage withstand test of the power cable by the voltage withstand tester 300 according to the voltage withstand test data collected by the data collecting unit 110.
For cables of different models, test voltage and detection time are different when voltage withstanding detection is carried out.
If the cable model is 38/66, 64/110, 127/220 or 290/500, the test voltage for voltage withstanding test is larger than the rated phase voltage of 0.97 × 2.5 × cable, and the test time is longer than 30 minutes. And when the test voltage and the detection time meet the requirements, judging that the withstand voltage detection of the power cable is passed.
If the cable model is 3.6/6, 6/6, 8.7/10, 8.7/15, 12/20 or 18/30, the test voltage for voltage withstanding test is greater than 0.97 × 3.5 × rated phase voltage of the cable, and the test time is greater than 5 minutes. And when the test voltage and the detection time meet the requirements, judging that the withstand voltage detection of the power cable is passed.
If the cable model is 21/35 or 26/35, the test voltage for voltage resistance detection is more than 0.97 multiplied by 3.5 multiplied by the rated phase voltage of the cable, and the detection time is more than 5 minutes; or the test voltage is larger than 0.97 multiplied by 2.5 multiplied by the rated phase voltage of the cable, and the detection time is longer than 3 minutes. And when the test voltage and the detection time meet the requirements, judging that the withstand voltage detection of the power cable is passed.
Further, when the voltage withstand test of the power cable is performed, the data acquisition unit 110 acquires the voltage signal (i.e., the test voltage) of the voltage withstand tester 300 in real time to ensure the test voltage during the voltage withstand test.
The video control subunit 123 is configured to control the video monitoring unit 140 to monitor the partial discharge detector 200 and the withstand voltage tester 300 in real time; and integrates and corresponds the monitoring video data acquired by the data acquisition unit 110 with the detection data. And integrating the monitoring video data and the detection data according to the types of the monitoring video data and the detection data, and the time of the monitoring video data and the time of the power cable detection. Integrating and corresponding partial discharge detection data and partial discharge detection monitoring video data at the same time; and integrating and corresponding the pressure-resistant detection data and the pressure-resistant detection monitoring video data at the same time.
The storage unit 130 is used to store the integrated monitoring video data and detection data, and to store the analysis processing guidance and determination process of the partial discharge detection and withstand voltage detection of the power cable by the control unit 120.
The prompting unit 150 is configured to prompt according to an analysis process of the power cable during partial discharge calibration, partial discharge detection, and withstand voltage detection performed by the control unit 120. For example, when detecting the sensitivity of the partial discharge detector 200, after the traceable power cable detection control system 100 starts to operate for 5s, the prompting unit 150 will automatically prompt "the partial discharge calibration operation can start"; when the current voltage value acquired by the data acquisition unit 110 is greater than 0.5V, the prompt unit 150 will automatically display: the partial discharge calibration should be calibrated without charging, which operation does not meet the standard requirements.
In addition, the traceable power cable detection control system 100 of the embodiment further includes a client (not shown in the drawings) for viewing and invoking the detection process and data of the power cable detection control system 100. In addition, the location of the client may be set near the partial discharge detector 200 and the withstand voltage tester 300 or at the far end of the partial discharge detector 200 and the withstand voltage tester 300 according to actual needs, so as to facilitate the user to check.
In summary, the traceable power cable detection control system of the present invention is based on the existing partial discharge detector and voltage withstanding tester, and only externally connected with the traceable power cable detection control system of the present invention, so that the monitoring, guidance, analysis and determination of the partial discharge detection and voltage withstanding detection of the power cable can be completed, thereby greatly saving the cost; moreover, the invention can store the detection data of each power cable in real time, and for finding the problems in the generation and manufacture, the data is matched with the video, so that the invention is more convincing to cable users; the invention can remotely monitor and call factory detection data, provides possibility for remote monitoring and manufacturing of users, and reduces the cost of manpower and material resources for monitoring and manufacturing. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a traceable power cable detects control system which characterized in that: the power cable detects control system and links to each other with partial discharge test detector and withstand voltage tester respectively, includes: the device comprises a data acquisition unit, a control unit, a storage unit and a video monitoring power supply; wherein,
the video monitoring unit is used for monitoring the process of detecting the power cables of the partial discharge test detector and the withstand voltage tester;
the data acquisition unit is used for acquiring the detection data of the partial discharge test detector and the withstand voltage tester and the monitoring video data of the video monitoring unit in real time;
the control unit is used for controlling and guiding the partial discharge detector and the withstand voltage tester to carry out power cable detection, controlling the video monitoring unit to monitor the process of power cable detection of the partial discharge detector and the withstand voltage tester in real time, and integrating, analyzing, processing and judging the detection data and the monitoring video data acquired by the data acquisition unit;
the storage unit is used for storing the integrated monitoring video data and the integrated detection data and storing the processes of control, guidance, analysis processing and judgment of the control unit on the power cable detection.
2. The traceable power cable detection control system of claim 1, wherein: the power cable detection comprises partial discharge detection performed by the partial discharge test detector and withstand voltage detection performed by the withstand voltage tester.
3. The traceable power cable detection control system of claim 2, wherein: the detection data comprises partial discharge detection data and withstand voltage detection data; the monitoring video data comprises partial discharge detection monitoring video data and withstand voltage detection monitoring video data.
4. The traceable power cable detection control system of claim 2, wherein: the control unit comprises a partial discharge control subunit, a voltage withstand control subunit and a video control subunit; wherein,
the partial discharge control subunit is used for controlling, guiding and analyzing the partial discharge detection of the partial discharge detector;
the voltage-resistant control subunit is used for controlling, guiding and analyzing the voltage-resistant detection of the voltage-resistant tester;
the video control subunit is used for controlling the video monitoring unit to monitor the power cable detection process of the partial discharge detector and the withstand voltage tester in real time, and integrating and corresponding the monitoring video data acquired by the data acquisition unit and the detection data.
5. The traceable power cable detection control system of claim 4, wherein: the partial discharge control subunit controls, guides and analyzes the partial discharge detector, including detecting the sensitivity of the partial discharge detector and determining the qualification rate of the partial discharge detection.
6. The traceable power cable detection control system of claim 5, wherein: the partial discharge control subunit detects the sensitivity of the partial discharge detector, and the sensitivity includes:
step S21, guiding and controlling the partial discharge detector to calibrate partial discharge, and controlling the data acquisition unit to acquire the partial discharge calibration quantity and the current voltage value of the partial discharge detector after the partial discharge calibration signal is stable;
step S22, determining that the current voltage value: if the current voltage value is less than 0.5V, judging that the calibration partial discharge is carried out under the condition of no electricity, and jumping to step S23; otherwise, the power cable detection control system reports an error;
step S23, controlling the data acquisition unit to acquire a background interference value and an partial discharge display value of the partial discharge detector;
step S24, determining the sensitivity of the partial discharge detector according to the partial discharge display value and the background interference value.
7. The traceable power cable detection control system of claim 6, wherein: the sensitivity of the partial discharge detector is related to the type of the power cable.
8. The traceable power cable detection control system of claim 6, wherein: the partial discharge control subunit determines that the qualification rate of the partial discharge detection includes:
step S31, acquiring detection voltage in real time according to acquisition time interval through the data acquisition unit;
step S32, calculating a partial discharge quantity measured value according to the detection voltage;
and step S33, judging whether the partial discharge detection is qualified or not according to the background interference value and the measured value of the partial discharge amount.
9. The traceable power cable detection control system of claim 8, wherein: the partial discharge amount measurement value and the standard whether the partial discharge detection is qualified are both related to the model of the power cable.
10. The traceable power cable detection control system of claim 8, wherein: the power cable detection control system further comprises a prompting unit.
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| CN201510152290.6A CN106154122A (en) | 2015-04-01 | 2015-04-01 | A kind of retrospective power cable detecting and controlling system |
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| CN201510152290.6A CN106154122A (en) | 2015-04-01 | 2015-04-01 | A kind of retrospective power cable detecting and controlling system |
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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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030160618A1 (en) * | 2002-02-28 | 2003-08-28 | Jens Titschert | Method and circuit arrangement for measuring earth leakages in intrinsically safe current feeds |
| CN201096870Y (en) * | 2007-09-04 | 2008-08-06 | 上海宝钢设备检修有限公司 | Installation status diagnosis device for high-voltage AC motor |
| CN201373905Y (en) * | 2009-03-04 | 2009-12-30 | 厦门红相电力设备股份有限公司 | Safety detecting evaluation system of power cable |
| CN102565637A (en) * | 2011-12-12 | 2012-07-11 | 广东电网公司电力科学研究院 | Oscillation wave partial discharge detection system for cable based on asynchronous double-end measurement |
| CN202393840U (en) * | 2011-08-25 | 2012-08-22 | 中国电力科学研究院 | Mobile laboratory for detecting power equipment state |
| CN103018605A (en) * | 2012-12-11 | 2013-04-03 | 工业和信息化部电子第五研究所 | Electronic component detection test monitoring system |
-
2015
- 2015-04-01 CN CN201510152290.6A patent/CN106154122A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030160618A1 (en) * | 2002-02-28 | 2003-08-28 | Jens Titschert | Method and circuit arrangement for measuring earth leakages in intrinsically safe current feeds |
| CN201096870Y (en) * | 2007-09-04 | 2008-08-06 | 上海宝钢设备检修有限公司 | Installation status diagnosis device for high-voltage AC motor |
| CN201373905Y (en) * | 2009-03-04 | 2009-12-30 | 厦门红相电力设备股份有限公司 | Safety detecting evaluation system of power cable |
| CN202393840U (en) * | 2011-08-25 | 2012-08-22 | 中国电力科学研究院 | Mobile laboratory for detecting power equipment state |
| CN102565637A (en) * | 2011-12-12 | 2012-07-11 | 广东电网公司电力科学研究院 | Oscillation wave partial discharge detection system for cable based on asynchronous double-end measurement |
| CN103018605A (en) * | 2012-12-11 | 2013-04-03 | 工业和信息化部电子第五研究所 | Electronic component detection test monitoring system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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