CN209296901U - A kind of assessment device of superfrequency PD meter - Google Patents
A kind of assessment device of superfrequency PD meter Download PDFInfo
- Publication number
- CN209296901U CN209296901U CN201821882045.6U CN201821882045U CN209296901U CN 209296901 U CN209296901 U CN 209296901U CN 201821882045 U CN201821882045 U CN 201821882045U CN 209296901 U CN209296901 U CN 209296901U
- Authority
- CN
- China
- Prior art keywords
- radio
- meter
- tested
- signal generator
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003032 molecular docking Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 abstract description 16
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a kind of assessment devices of superfrequency PD meter, belong to power equipment Partial Discharge Detecting Technology field.The utility model includes computer, radio-frequency signal generator, high-definition digital oscillograph, radio-frequency antenna, tested PD meter, tested PD meter sensor；Computer is connected to the input terminal of radio-frequency signal generator by Serial Port Line, one output end of radio-frequency signal generator is connected to the channel of high-definition digital oscillograph by coaxial cable, another output end is connected to designed radio-frequency antenna, radio-frequency antenna seamless interfacing places tested PD meter sensor simultaneously, the two is placed by bracket, accomplish seamless interfacing, tested PD meter sensor is connected to the port of tested PD meter by cable.The utility model the utility model can carry out the assessment of quick umber of pulse index, sensitivity index to superfrequency PD meter, and then assess the performance of superfrequency PD meter.
Description
Technical field
The utility model relates to a kind of assessment devices of superfrequency PD meter, belong to power equipment Partial Discharge Detecting Technology
Field.
Background technique
Partial Discharge Detection is a kind of important means of Electric Power Equipment Insulation diagnosis, can effectively detect the morning of equipment
Phase failure provides foundation effectively to take preventive measures.
Detection method for local discharge has much at present, there is pulse current method, ultrasonic wave, TEV, superfrequency method etc..Superfrequency
The principle of detection is to be detected by extra-high video sensor to the ultrahigh-frequency signal generated when shelf depreciation in power equipment, from
And the relevant information of shelf depreciation is obtained, realize Partial Discharge Detection.Since the frequency range of superfrequency is very high, it is applicable in more
In realizing real-time monitoring built in sensor, while the indexs such as sensitivity of extra-high video sensor are met the requirements, and can be detected out
Subtle partial discharge, so that the characteristic to PD meter is assessed.
At present country associate power industry superfrequency local discharge detection device is not standardized, unified assessment device
And method, the regular assessment of large quantities of PD meters is affected, causes Instrumental results inaccuracy reliably, on-the-spot test easily causes
Serious consequence.Therefore the research of the convenient assessment device of superfrequency PD meter and method is worth with practical guidance.
Summary of the invention
The utility model aims at the problems existing in the prior art, and provides a kind of assessment devices of superfrequency PD meter, originally
The assessment device of utility model can be used for the daily assessment and assessment of superfrequency PD meter, and the utility model can be to superfrequency partial discharge
Instrument carries out quick umber of pulse index, sensitivity assessment, and then assesses the performance of superfrequency PD meter.
The technical solution of the utility model is: a kind of assessment device of superfrequency PD meter, including computer, radiofrequency signal
Generator, high-definition digital oscillograph, radio-frequency antenna, tested PD meter, tested PD meter sensor；
The computer is connected to the input terminal of radio-frequency signal generator by Serial Port Line, and one of radio-frequency signal generator
Output end is connected to the channel of high-definition digital oscillograph by coaxial cable, and another output end is connected to designed radio frequency day
Line, while radio-frequency antenna seamless interfacing places tested PD meter sensor, the two is placed by bracket, accomplish seamless interfacing,
Tested PD meter sensor is connected to the port of tested PD meter by cable；
The radio-frequency antenna, for receiving the square-wave signal for meeting power industry standard of radio-frequency signal generator generation；
The tested PD meter sensor is used for seamless interfacing radio-frequency antenna, received square-wave signal is sent to tested
PD meter is tested and assessed；
The computer meets the square-wave signal of power industry for controlling radio-frequency signal generator generation；
The radio-frequency signal generator, for generating the square-wave signal for meeting power industry standard, pulsewidth is 5 ~ 50ns, width
Degree is 100mv ~ 200V；
The high-definition digital oscillograph, for monitoring the square-wave signal of radio-frequency signal generator output.
Further, the bracket combined closely that the radio-frequency antenna, tested PD meter sensor dock, length are
0.2m, width 0.1m are highly 0.16m, tightly wrap the close radio-frequency antenna of fitting, tested PD meter sensor.
The umber of pulse index of superfrequency PD meter is surveyed using the assessment device of the utility model superfrequency PD meter
The method commented:
(1) square-wave signal that radio-frequency signal generator generation meets power industry is controlled by computer, passes through Serial Port Line
It is connected to the input terminal of radio-frequency signal generator；
(2) output end of radio-frequency signal generator is connected to the logical of high-definition digital oscillograph with coaxial low loss cable
Road, while oscillograph is set to suitable acquisition state；Another output end connects designed radio-frequency antenna；
(3) seamless interfacing places tested PD meter sensor on designed bracket, so that radio-frequency antenna and tested partial discharge
The docking of instrument sensor seamless；
(4) PD meter sensor is tested to be connected on tested superfrequency PD meter by coaxial cable；
(5) signal source controls the square-wave signal that radio-frequency signal generator generation meets power industry, radio frequency by computer
The square-wave signal for meeting power industry standard that signal generator generates, pulsewidth are 5 ~ 50ns, and amplitude is 100mv ~ 200V, thereon
It rises the time on edge and failing edge, range is 100ps ~ 5ns；What radio-frequency antenna reception radio-frequency signal generator generated meets electric power row
The square-wave signal of industry standard, seamless interfacing are tested PD meter sensor, and tested PD meter sensor passes received square-wave signal
It send to tested PD meter and tests and assesses, observe the actual waveform that tested PD meter detects；
(6) computer control radio-frequency signal generator generates the square-wave signal for meeting (5) requirement, and frequency is incremented to from 1MHz
80MHz, the square-wave signal of step-length 5MHz；The signal is monitored with high-definition digital oscillograph simultaneously, and then observes tested PD meter inspection
The actual waveform measured reaches assessment superfrequency PD meter by analyzing whether tested PD meter can collect the square-wave signal
The purpose of umber of pulse.
It is tested and assessed using the assessment device of the utility model superfrequency PD meter to the sensitivity of superfrequency PD meter
Method:
(1) square-wave signal that radio-frequency signal generator generation meets power industry is controlled by computer, passes through Serial Port Line
It is connected to the input terminal of radio-frequency signal generator；
(2) output end of radio-frequency signal generator is connected to the logical of high-definition digital oscillograph with coaxial low loss cable
Road, while oscillograph is set to acquisition state；Another output end connects designed radio-frequency antenna；
(3) seamless interfacing places tested PD meter sensor on designed bracket, so that radio-frequency antenna and tested partial discharge
The docking of instrument sensor seamless；
(4) PD meter sensor is tested to be connected on tested superfrequency PD meter by coaxial cable；
(5) signal source controls the square-wave signal that radio-frequency signal generator generation meets power industry, radio frequency by computer
The square-wave signal for meeting power industry standard that signal generator generates, pulsewidth are 5 ~ 50ns, and amplitude is 100mv ~ 200V, thereon
It rises the time on edge and failing edge, range is 100ps ~ 5ns；What radio-frequency antenna reception radio-frequency signal generator generated meets electric power row
The square-wave signal of industry standard, seamless interfacing are tested PD meter sensor, and tested PD meter sensor passes received square-wave signal
It send to tested PD meter and tests and assesses, observe the actual waveform that tested PD meter detects；
(6) square-wave signal amplitude 2V-200V is adjusted, setting signal-to-noise ratio is greater than 3dB, observes the output knot of tested PD meter
Fruit divides three sections and is tested respectively, first segment 0-10V；Second segment 10-50V；Third section 50-200V, draws out sensitive write music
Line, with this come the sensitivity for the PD meter of testing and assessing.
The beneficial effects of the utility model are:
(1) assessment device of the utility model can be used for the daily survey of the indexs such as superfrequency PD meter umber of pulse, sensitivity
It comments and Instrument Evaluation；
(2) in face of extensive superfrequency PD meter to be checked, facilitated using the assessment device of the utility model
Whether the problem of quickly and easily finding out instrument, quick decision need depot repair or inspection；Help to solve major at present
The problem of PD meter of power supply bureau is long neglected and in disrepair, and poor reliability is not allowed in measuring accuracy has preferable practical guidance value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment superfrequency PD meter assessment device；
Fig. 2 is the sensitivity map of embodiment superfrequency PD meter square wave.
Specific embodiment
Embodiment 1: as shown in Figs. 1-2, a kind of assessment device of superfrequency PD meter, including computer, radiofrequency signal hair
Raw device, high-definition digital oscillograph, radio-frequency antenna, tested PD meter, tested PD meter sensor；
The computer is connected to the input terminal of radio-frequency signal generator by Serial Port Line, and one of radio-frequency signal generator
Output end is connected to the channel of high-definition digital oscillograph by coaxial cable, and another output end is connected to designed radio frequency day
Line, while radio-frequency antenna seamless interfacing places tested PD meter sensor, the two is placed by bracket, accomplish seamless interfacing,
Tested PD meter sensor is connected to the port of tested PD meter by cable；
Radio-frequency antenna described in the present embodiment, for receiving the side for meeting power industry standard of radio-frequency signal generator generation
Wave signal；
It is tested PD meter sensor described in the present embodiment, is used for seamless interfacing radio-frequency antenna, received square-wave signal is passed
It send to tested PD meter and tests and assesses；
Computer described in the present embodiment meets the square-wave signal of power industry for controlling radio-frequency signal generator generation；
Radio-frequency signal generator described in the present embodiment, for generating the square-wave signal for meeting power industry standard, pulsewidth 5
~ 50ns(takes endpoint value within the scope of this, the arbitrary value within the scope of endpoint all can), amplitude is 100mv ~ 200V(i.e. within the scope of this
Take endpoint value, the arbitrary value within the scope of endpoint all can)；
High-definition digital oscillograph described in the present embodiment, for monitoring the square-wave signal of radio-frequency signal generator output.
The bracket combined closely that radio-frequency antenna described in the present embodiment, tested PD meter sensor dock, length 0.2m,
Width is 0.1m, is highly 0.16m, tightly wraps the close radio-frequency antenna of fitting, tested PD meter sensor.
It is tested and assessed using the assessment device of the present embodiment superfrequency PD meter to the umber of pulse index of superfrequency PD meter
Method:
(1) square-wave signal that radio-frequency signal generator generation meets power industry is controlled by computer, passes through Serial Port Line
It is connected to the input terminal of radio-frequency signal generator；
(2) output end of radio-frequency signal generator is connected to the logical of high-definition digital oscillograph with coaxial low loss cable
Road, while oscillograph is set to suitable acquisition state；Another output end connects designed radio-frequency antenna；
(3) seamless interfacing places tested PD meter sensor on designed bracket, so that radio-frequency antenna and tested partial discharge
The docking of instrument sensor seamless；
(4) PD meter sensor is tested to be connected on tested superfrequency PD meter by coaxial cable；
(5) signal source controls the square-wave signal that radio-frequency signal generator generation meets power industry, radio frequency by computer
The square-wave signal for meeting power industry standard that signal generator generates, pulsewidth are 5 ~ 50ns, and amplitude is 100mv ~ 200V, thereon
It rises the time on edge and failing edge, range is takes endpoint value within the scope of 100ps ~ 5ns(i.e. this, and the arbitrary value within the scope of endpoint is all
Can)；Radio-frequency antenna receives the square-wave signal for meeting power industry standard that radio-frequency signal generator generates, and seamless interfacing is tested office
Instrument sensor is put, received square-wave signal is sent to tested PD meter and tested and assessed by tested PD meter sensor, and observation is tested
The actual waveform that PD meter detects；
(6) computer control radio-frequency signal generator generates the square-wave signal for meeting (5) requirement, and frequency is incremented to from 1MHz
80MHz, the square-wave signal of step-length 5MHz；The signal is monitored with high-definition digital oscillograph simultaneously, and then observes tested PD meter inspection
The actual waveform measured, using endpoint value is taken within the scope of 1MHz-10MHz(i.e. this in example, the arbitrary value within the scope of endpoint is all
Can) when square-wave signal, meet rising edge, failing edge time 100ps, tested PD meter system is able to detect that the square wave is believed
Number；As square wave frequency is incremented to 20MHz or more, upper failing edge time 1ns(is in range), observe tested PD meter system
System (display of the umber of pulse of tested PD meter is different with model and shows different) will appear a little pulse missing and even receive not
The case where to corresponding umber of pulse.And then assess the umber of pulse performance of the tested superfrequency PD meter.
The side to be tested and assessed using the assessment device of the present embodiment superfrequency PD meter to the sensitivity of superfrequency PD meter
Method:
(1) square-wave signal that radio-frequency signal generator generation meets power industry is controlled by computer, passes through Serial Port Line
It is connected to the input terminal of radio-frequency signal generator；
(2) output end of radio-frequency signal generator is connected to the logical of high-definition digital oscillograph with coaxial low loss cable
Road, while oscillograph is set to suitable acquisition state；Another output end connects designed radio-frequency antenna；
(3) seamless interfacing places tested PD meter sensor on designed bracket, so that radio-frequency antenna and tested partial discharge
The docking of instrument sensor seamless；
(4) PD meter sensor is tested to be connected on tested superfrequency PD meter by coaxial cable；
(5) signal source controls the square-wave signal that radio-frequency signal generator generation meets power industry, radio frequency by computer
The square-wave signal for meeting power industry standard that signal generator generates, pulsewidth are 5 ~ 50ns, and amplitude is 100mv ~ 200V, thereon
It rises the time on edge and failing edge, range is 100ps ~ 5ns；What radio-frequency antenna reception radio-frequency signal generator generated meets electric power row
The square-wave signal of industry standard, seamless interfacing are tested PD meter sensor, and tested PD meter sensor passes received square-wave signal
It send to tested PD meter and tests and assesses, observe the actual waveform that tested PD meter detects；
(6) it adjusts square-wave signal amplitude 2V-200V(and takes endpoint value within the scope of this, the arbitrary value within the scope of endpoint is all
Can), setting signal-to-noise ratio is greater than 3dB, observes the output of tested PD meter as a result, taking three sections to test respectively, first segment 0-10V is obtained
To sensitivity maxima -75dB；Second segment 10-50V, sensitivity gradually become smaller but still have sensitivity；Third section 50-200V,
Sensitivity tends to be constant or has been saturated do not measure.Sensitivity curve is drawn, with this come the sensitivity for the PD meter of testing and assessing.This implementation
In example using in above range occurrence and the existing operating process for surveying sensitivity corresponding show that sensitivity is depicted as
Curve is as shown in Figure 2.
The specific embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the utility model is not
Be limited to above embodiment, within the knowledge of a person skilled in the art, can also do not depart from it is practical
Various changes can be made under the premise of novel objective.
Claims (2)
1. a kind of assessment device of superfrequency PD meter, it is characterised in that: including computer, radio-frequency signal generator, high definition number
Word oscillograph, radio-frequency antenna, tested PD meter, tested PD meter sensor；
The computer is connected to the input terminal of radio-frequency signal generator, an output of radio-frequency signal generator by Serial Port Line
End is connected to the channel of high-definition digital oscillograph by coaxial cable, and another output end is connected to designed radio-frequency antenna, together
When radio-frequency antenna seamless interfacing place tested PD meter sensor, the two is placed by bracket, accomplishes seamless interfacing, tested office
Put the port that instrument sensor is connected to tested PD meter by cable；
The radio-frequency antenna, for receiving the square-wave signal for meeting power industry standard of radio-frequency signal generator generation；
The tested PD meter sensor is used for seamless interfacing radio-frequency antenna, received square-wave signal is sent to tested partial discharge
Instrument is tested and assessed；
The computer meets the square-wave signal of power industry for controlling radio-frequency signal generator generation；
The radio-frequency signal generator, for generating the square-wave signal for meeting power industry standard, pulsewidth is 5 ~ 50ns, and amplitude is
100mv~200V；
The high-definition digital oscillograph, for monitoring the square-wave signal of radio-frequency signal generator output.
2. the assessment device of superfrequency PD meter according to claim 1, it is characterised in that: the radio-frequency antenna, tested office
The bracket of instrument sensor docking combined closely is put, length 0.2m, width 0.1m are highly 0.16m, tightly wrap patch
Close close radio-frequency antenna, tested PD meter sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821882045.6U CN209296901U (en) | 2018-11-15 | 2018-11-15 | A kind of assessment device of superfrequency PD meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821882045.6U CN209296901U (en) | 2018-11-15 | 2018-11-15 | A kind of assessment device of superfrequency PD meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209296901U true CN209296901U (en) | 2019-08-23 |
Family
ID=67644630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821882045.6U Active CN209296901U (en) | 2018-11-15 | 2018-11-15 | A kind of assessment device of superfrequency PD meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209296901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407026A (en) * | 2018-11-15 | 2019-03-01 | 昆明理工大学 | A kind of assessment device and method of superfrequency PD meter |
-
2018
- 2018-11-15 CN CN201821882045.6U patent/CN209296901U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407026A (en) * | 2018-11-15 | 2019-03-01 | 昆明理工大学 | A kind of assessment device and method of superfrequency PD meter |
| CN109407026B (en) * | 2018-11-15 | 2024-03-19 | 昆明理工大学 | Evaluation device and method for ultrahigh frequency partial discharge instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108181552A (en) | Buried cable fault detection system and its fault detection method | |
| CN105676066A (en) | Cable fault locating eliminating device and method | |
| CN103675623A (en) | Method and system for detecting partial discharging of GIS under impulse voltage | |
| CN201335860Y (en) | Calibrating device for insulating oil breakdown voltage tester | |
| CN102866375A (en) | System and method for calibrating receiving performance of partial-discharge ultrahigh frequency detection device | |
| CN201654130U (en) | Automatic measuring and calibrating device of high-impedance measuring apparatus | |
| CN103954890A (en) | DC partial discharge detection device and method for converter transformer | |
| CN203643553U (en) | Cable fault positioning and insulation aging test device | |
| CN102353877A (en) | Partial discharge detection method for realizing phase resolved partial discharge (PRPD) pattern and time resolved partial discharge (TRPD) pattern | |
| CN109444781A (en) | A kind of GIS partial discharge superfrequency sensitivity check method based on signal propagation characteristics | |
| CN108318785A (en) | A kind of humorous pressure-resistant apparatus of cable string having defect location function | |
| CN108254045A (en) | A kind of simple ultrasonic water meter self-diagnosing method based on TDC-GP30 | |
| CN109407026A (en) | A kind of assessment device and method of superfrequency PD meter | |
| CN209296901U (en) | A kind of assessment device of superfrequency PD meter | |
| CN107561417A (en) | A kind of distributed partial discharge detecting system | |
| CN106908750A (en) | A kind of electric energy meter pulse error detection method and device | |
| CN201548678U (en) | Lightning counter calibrator | |
| CN103149545B (en) | The method of testing of VFTO sensor, device, equipment and system | |
| CN103344937A (en) | Device and method for detecting power consumption of intelligent watt-hour meter | |
| CN108519572A (en) | A kind of assessment device and assessment method of transient earth voltage PD meter | |
| CN209055624U (en) | A kind of portion, cable first and last end office (EO) breakdown location device | |
| CN209821370U (en) | Signal amplitude-comparison phase and direction finding device | |
| KR101050196B1 (en) | Reflective wave measuring device for live line inspection | |
| CN207232372U (en) | A kind of detection device of instrument for measuring partial discharge's device position error | |
| Narayanan et al. | Study on the parameters affecting the impedance extraction accuracy by inductive coupling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |