CN113884964A - AC/DC electronic mutual inductor operation inspection instrument - Google Patents
AC/DC electronic mutual inductor operation inspection instrument Download PDFInfo
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- CN113884964A CN113884964A CN202111255516.7A CN202111255516A CN113884964A CN 113884964 A CN113884964 A CN 113884964A CN 202111255516 A CN202111255516 A CN 202111255516A CN 113884964 A CN113884964 A CN 113884964A
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- 238000007689 inspection Methods 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 74
- 230000002159 abnormal effect Effects 0.000 claims abstract description 15
- 238000007781 pre-processing Methods 0.000 claims description 24
- 238000003745 diagnosis Methods 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000007726 management method Methods 0.000 description 22
- 230000036541 health Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 108091006146 Channels Proteins 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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Abstract
The appearance is examined in AC/DC electronic transformer operation that this application embodiment provided includes: the system comprises a signal receiving end, a signal acquisition module, a computer analysis management module and a display; the output end of the signal receiving end is connected with the signal acquisition module, the signal acquisition module is connected with the computer analysis management module, and the computer analysis management module is connected with the display; when the AC/DC electronic transformer operation inspection instrument is used for inspection, the panoramic view and depth display of specific data information can be realized; the physical examination items can be listed in a physical examination menu mode, the detection items are traversed automatically, and a detection result is given; when the detected data is abnormal, the AC/DC electronic transformer operation inspection instrument quickly gives a problem solution and automatically generates a detailed report.
Description
Technical Field
The embodiment of the application relates to the field of power detection equipment, in particular to an alternating current and direct current electronic transformer operation inspection instrument.
Background
With the rapid development of digital power grids and smart power grids, various devices applied to power systems are developing towards intellectualization, and more operation and detection instruments for measuring alternating current and direct current components are being widely applied to power systems. Along with the construction of the smart grid, the transmission capacity and the standard grade of the power system are gradually improved, and at the moment, the operation inspection instrument is needed.
Common operation and inspection instruments are generally composed of precise optical or electrical devices, different types of operation and inspection instruments are selected manually to detect different electric power data, and a large number of personnel are needed to be matched and coordinated during use.
The existing operation and inspection instrument has the advantages that the optical fiber for digital quantity transmission and the limited configuration of the display unit enable data of the alternating current and direct current electronic transformer to be incapable of being checked and analyzed conveniently, the matching and coordination difficulty is high, a large number of required personnel are needed, and time and labor are wasted.
Disclosure of Invention
In order to solve the problems that data of an alternating current and direct current electronic transformer in the prior art cannot be checked and analyzed conveniently, the matching and coordination difficulty is high, a large number of required personnel are needed, and time and labor are wasted, the application provides an alternating current and direct current electronic transformer operation inspection instrument;
appearance is examined in friendship to alternating current electronic type mutual-inductor includes: the system comprises a signal receiving end, a signal acquisition module, a computer analysis management module and a display;
the output end of the signal receiving end is connected with the signal acquisition module, the signal acquisition module is connected with the computer analysis management module, and the computer analysis management module is connected with the display;
the signal receiving end is used for acquiring equipment operation data at a data interface of the power distribution equipment;
the signal acquisition module is used for preprocessing the equipment operation data and acquiring a preprocessing result, wherein the preprocessing includes conversion and additional information loading;
the computer analysis management module is used for analyzing and processing according to the preprocessing result and the additional information and giving specific scores and prejudgment results according to the diagnosis result;
the display is used for displaying the diagnosis result, the specific score and the prejudgment result output by the computer analysis management module.
Further, the signal receiving terminals include an FT3 receiving terminal and an IEC61850 signal receiving terminal.
Further, the signal acquisition module converts the device operation data acquired by the receiving end into an ethernet signal through a photoelectric conversion unit.
Further, the computer analysis management module analyzes the preprocessing result and the additional information, and the items of the preprocessing result and the additional information analysis specifically include: the method comprises the following steps of light intensity detection, duty ratio detection, baud rate and sampling rate detection, frame interval time detection, frame loss error code detection, output protocol detection, state word detection, single-point sampling anomaly detection, SV output direct current quantity detection, SV output harmonic quantity detection, SV output signal-to-noise ratio detection, double AD consistency detection, MU processing delay detection, working state detection and synchronism detection.
Furthermore, the computer analysis management module performs rapid fault analysis and fault link positioning on the abnormal operation data sampling of the alternating current and direct current equipment.
Further, computer analysis management module is including USB mouth, WIFI, synchronizing signal module, temperature and humidity sensor and status indicator lamp.
Further, the display is an integrated large screen display with a rotatable viewing angle.
Furthermore, a battery is arranged in the AC/DC electronic transformer operation inspection instrument.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a structural schematic diagram of an ac/dc electronic transformer operation inspection instrument according to the present application.
Detailed Description
In order to solve the problems that data of an alternating current and direct current electronic transformer in the prior art cannot be checked and analyzed conveniently, the matching and coordination difficulty is high, a large number of required personnel are needed, and time and labor are wasted, the embodiment of the application provides an alternating current and direct current electronic transformer operation inspection instrument and a using method.
Referring to fig. 1, a schematic diagram of a structure of an ac/dc electronic transformer operation inspection instrument according to the present application includes: the device comprises a signal receiving end, a signal acquisition module, a computer analysis management module and a display.
The output end of the signal receiving end is connected with the signal acquisition module, the signal acquisition module is connected with the computer analysis management module, and the computer analysis management module is connected with the display.
The signal receiving end is used for obtaining equipment operation data at a data interface of the power distribution equipment.
The signal acquisition module is used for preprocessing the equipment operation data and acquiring a preprocessing result, wherein the preprocessing includes conversion and additional information loading.
And the computer analysis management module is used for analyzing and processing according to the preprocessing result and the additional information and giving a specific score and a prejudgment result according to a diagnosis result.
The display is used for displaying the diagnosis result, the specific score and the prejudgment result output by the computer analysis management module.
The operation and inspection instrument using the AC/DC electronic transformer comprises the following specific steps:
step one, selecting a detection item to be detected, and after a test is started, automatically traversing the test item.
And step two, acquiring a diagnosis result, giving a specific numerical value, and graphically displaying the position (the upper limit and the lower limit are standard values) of the currently acquired diagnosis result numerical value.
Step three, providing detection results respectively comprising: check square (normal); | A (early warning), (mild/abnormal/severe abnormality); is there a (requiring manual confirmation).
And step four, when the detection result is abnormal, an operation and maintenance suggestion and a processing scheme are automatically given.
Specifically, when the AC/DC electronic transformer operation inspection instrument is used for inspection, the panoramic view and the depth display can be carried out on specific data information; the physical examination items can be listed in a physical examination menu mode, the detection items are traversed automatically, and a detection result is given; when the detected data are abnormal, the AC/DC electronic transformer operation inspection instrument quickly provides a problem solution, a detailed report is automatically generated, and the data are detected and synchronized with the cloud.
Further, the signal receiving terminals include an FT3 receiving terminal and an IEC61850 signal receiving terminal.
Further, the signal acquisition module converts the device operation data acquired by the receiving end into an ethernet signal through a photoelectric conversion unit.
Specifically, for IEC61850 signals in the intelligent substation, the acquisition module can directly receive the signals; for the AC/DC electronic transformer operation and detection instrument, an optical serial port 1, an optical serial port 2 and an optical serial port 3 receive digital message signals of a remote module and a merging unit of the AC/DC electronic transformer operation and detection instrument and are realized through an FT3 receiving port, and a signal acquisition module converts an FT3 protocol message into an Ethernet signal through a photoelectric conversion unit.
Further, the computer analysis management module analyzes the preprocessing result and the additional information, and the items of the preprocessing result and the additional information analysis specifically include: the method comprises the following steps of light intensity detection, duty ratio detection, baud rate and sampling rate detection, frame interval time detection, frame loss error code detection, output protocol detection, state word detection, single-point sampling anomaly detection, SV output direct current quantity detection, SV output harmonic quantity detection, SV output signal-to-noise ratio detection, double AD consistency detection, MU processing delay detection, working state detection and synchronism detection.
Specifically, the ac/dc electronic transformer operation inspection instrument receives digital message signals of the remote module or the merging unit, and then analyzes the preprocessing result and the additional information through the computer analysis management module, wherein the preprocessing result and the additional information analysis items specifically include:
(1) light intensity detection: outputting light intensity to SU and MU, and performing health diagnosis and early warning; and setting corresponding regulations for light intensity in operation, and if the light intensity exceeds the requirements of the operation regulations, determining that an abnormality occurs.
(2) Duty ratio detection: outputting duty ratios of optical strings of SU and MU, and performing health diagnosis and early warning; the duty ratio is a ratio of time occupied by the high level in one cycle, and if it exceeds a set specified value, it is considered that an abnormality occurs.
(3) Detecting the Baud rate and the sampling rate: carrying out qualification inspection on the baud rate and the sampling rate; the sampling rate supports 4kHz, 10kHz, 12.8kHz, 50kHz and 100kHz, and the baud rate supports 2.5M, 5M, 10M and 20M; the sampling rate and the baud rate of each type of AC-DC electronic transformer operation inspection instrument are different. And detecting through the acquired message information, and if the detected inconsistency is considered to be abnormal, determining that the inconsistency is unqualified.
(4) Frame interval time detection: and (5) carrying out qualification check on the interval time and the jitter of the data frames.
(5) Frame loss error detection: monitoring, counting and recording the frame loss and error code conditions of the data frames; the frame loss and the error rate of the data frame are recorded and stored by analyzing the message.
(6) And (3) output protocol detection: and carrying out byte analysis and abnormal byte positioning on the output protocols of the SU and the MU.
(7) And (3) detecting a status word: and performing health diagnosis on the current bit state in the state word.
(8) Single-point sampling anomaly detection: and carrying out single-point abnormity monitoring and wave recording on the sampling value, and giving a diagnosis result.
(9) And (3) SV output direct current quantity detection: extracting direct current components in SV waveforms, and performing health diagnosis and early warning; and the direct current detection is to judge whether the direct current component values of each remote module are consistent or not by extracting the direct current component.
(10) SV output harmonic quantity detection: and analyzing harmonic quantity and distortion rate in the SV waveform, and performing health diagnosis and early warning.
(11) And SV output signal-to-noise ratio detection: and analyzing the signal-to-noise ratio in the SV waveform, and performing health diagnosis and early warning.
(12) Double AD identity detection: performing health diagnosis and abnormal recording on the double AD consistency of the SU and the MU; and double AD acquisition, namely judging whether the two paths of acquisition are accurate to acquire one signal. And if the two signals are not consistent, the two AD signals are considered to be abnormal, and the signals acquired by the two ADs are recorded and stored.
(13) MU processing delay detection: and detecting the processing delay of the MU to give a diagnosis result.
(14) And (3) detecting the working state: and (5) providing a diagnosis result for the power supply voltage, the working temperature and the like of the SU and the MU.
(15) And (3) detecting the synchronism: and detecting the synchronism among the multiple data channels and the multiple optical signals.
Furthermore, the computer analysis management module performs rapid fault analysis and fault link positioning on the abnormal operation data sampling of the alternating current and direct current equipment.
Specifically, sampling abnormity of an alternating current-direct current digital loop, and performing rapid fault analysis and fault link positioning; wherein: the sampling related anomalies of the devices such as the control, protection, measurement and control and the like comprise: no sampling, channel alarm, all 0, all F of sampling values, frequent jitter, non-symmetrical amplitude and non-symmetrical channel sequence.
MU digital loop exceptions include: device alarms, no output, and unequal sample values.
In the actual operation process, the fault point is positioned to the smallest range as possible through a certain wiring mode, a detection sequence and a troubleshooting and positioning logic. The data record of simultaneous start, record ripples starting mode has the multiple, specifically has: manual start, abrupt start, timing start, peak off-limit start, frame loss error code start, single-point abnormal start, state bit shift start, direct current off-limit start and harmonic off-limit start.
And then, recording wave analysis is carried out, and the off-line is recorded and analyzed on the recorded wave file.
And finally, completing fault positioning.
Further, computer analysis management module is including USB mouth, WIFI, synchronizing signal module, temperature and humidity sensor and status indicator lamp.
Further, the display is an integrated large screen display with a rotatable viewing angle.
Furthermore, a battery is arranged in the AC/DC electronic transformer operation and inspection instrument; the power is supplied by the storage battery, and the applicable range is wide.
In the application process of the embodiment:
step one, selecting a detection item to be detected, and after a test is started, automatically traversing the test item.
And step two, acquiring a diagnosis result, giving a specific numerical value, and graphically displaying the position (the upper limit and the lower limit are standard values) of the currently acquired diagnosis result numerical value.
Step three, providing detection results respectively comprising: check square (normal); | A (early warning), (mild/abnormal/severe abnormality); is there a (requiring manual confirmation).
And step four, when the detection result is abnormal, an operation and maintenance suggestion and a processing scheme are automatically given.
According to the technical scheme, the AC/DC electronic transformer operation inspection instrument provided by the embodiment of the application comprises: the system comprises a signal receiving end, a signal acquisition module, a computer analysis management module and a display; the output end of the signal receiving end is connected with the signal acquisition module, the signal acquisition module is connected with the computer analysis management module, and the computer analysis management module is connected with the display; the signal receiving end is used for acquiring equipment operation data at a data interface of the power distribution equipment; the signal acquisition module is used for preprocessing the equipment operation data and acquiring a preprocessing result, wherein the preprocessing includes conversion and additional information loading; the computer analysis management module is used for analyzing and processing according to the preprocessing result and the additional information and giving specific scores and prejudgment results according to the diagnosis result; the display is used for displaying the diagnosis result, the specific score and the prejudgment result output by the computer analysis management module.
In the practical application process, when the AC/DC electronic transformer operation inspection instrument is used for inspection, the panoramic view and the depth display can be carried out on specific data information; the physical examination items can be listed in a 'physical examination menu' mode, the detection items are automatically traversed, and the detection result is given; when the detected data is abnormal, the AC/DC electronic transformer operation inspection instrument quickly provides a problem solution, and a detailed report is automatically generated.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure.
Claims (8)
1. An appearance is examined in transportation of AC-DC electronic type mutual-inductor which characterized in that includes: the system comprises a signal receiving end, a signal acquisition module, a computer analysis management module and a display;
the output end of the signal receiving end is connected with the signal acquisition module, the signal acquisition module is connected with the computer analysis management module, and the computer analysis management module is connected with the display;
the signal receiving end is used for acquiring equipment operation data at a data interface of the power distribution equipment;
the signal acquisition module is used for preprocessing the equipment operation data and acquiring a preprocessing result, wherein the preprocessing includes conversion and additional information loading;
the computer analysis management module is used for analyzing and processing according to the preprocessing result and the additional information and giving specific scores and prejudgment results according to the diagnosis result;
the display is used for displaying the diagnosis result, the specific score and the prejudgment result output by the computer analysis management module.
2. An ac-dc electronic transformer motion detector according to claim 1, wherein the signal receiving end comprises an FT3 receiving end and an IEC61850 signal receiving end.
3. The ac-dc electronic transformer operation inspection instrument according to claim 1, wherein the signal acquisition module is connected to the receiving end, and is configured to acquire the device operation data acquired by the receiving end and convert the device operation data into an ethernet signal by using the photoelectric conversion unit.
4. The ac/dc electronic transformer operation inspection instrument according to claim 1, wherein the computer analysis management module analyzes the pre-processing result and the additional information, and the items of the pre-processing result and the additional information analysis include: the method comprises the following steps of light intensity detection, duty ratio detection, baud rate and sampling rate detection, frame interval time detection, frame loss error code detection, output protocol detection, state word detection, single-point sampling anomaly detection, SV output direct current quantity detection, SV output harmonic quantity detection, SV output signal-to-noise ratio detection, double AD consistency detection, MU processing delay detection, working state detection and synchronism detection.
5. The AC-DC electronic transformer operation inspection instrument according to claim 4, wherein the computer analysis management module performs rapid fault analysis and fault link location on abnormal sampling of AC-DC equipment operation data.
6. The AC-DC electronic transformer operation inspection instrument according to claim 4, wherein the computer analysis management module comprises a USB port, WIFI, a synchronous signal module, a temperature and humidity sensor and a status indicator lamp.
7. An ac-dc electronic transformer motion detector as claimed in claim 1, wherein said display is an integrated large angle of view screen display.
8. An AC/DC electronic transformer instrument according to claim 1, wherein a battery is arranged in the AC/DC electronic transformer instrument.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111255516.7A CN113884964A (en) | 2021-10-27 | 2021-10-27 | AC/DC electronic mutual inductor operation inspection instrument |
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| CN202111255516.7A CN113884964A (en) | 2021-10-27 | 2021-10-27 | AC/DC electronic mutual inductor operation inspection instrument |
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