CN208537705U - A kind of assessment device of transient earth voltage PD meter positioning function - Google Patents
A kind of assessment device of transient earth voltage PD meter positioning function Download PDFInfo
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- CN208537705U CN208537705U CN201820708933.XU CN201820708933U CN208537705U CN 208537705 U CN208537705 U CN 208537705U CN 201820708933 U CN201820708933 U CN 201820708933U CN 208537705 U CN208537705 U CN 208537705U
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- 238000009413 insulation Methods 0.000 claims abstract description 13
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- 210000001367 artery Anatomy 0.000 claims 1
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- 238000000034 method Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 6
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Abstract
The utility model relates to a kind of assessment devices of transient earth voltage PD meter positioning function, belong to power equipment Partial Discharge Detecting Technology field.The device includes computer, programmable signal generator, high-performance oscillograph, metal plate, insulation board, workbench, transient earth voltage PD meter, two transient earth voltage sensors, programmable signal generator is connect by coaxial output line cable I with computer, the signal output end of programmable signal generator is connect by coaxial output line cable II with metal plate bottom end central point, the signal output end of programmable signal generator is connect by coaxial output line cable III with high-performance oscillograph, insulation board is arranged on the table, metal plate is arranged on insulation board, the probe of two transient earth voltage sensors is separately positioned on the metal plate of metal plate central horizontal axis and/or vertical axis, transient earth voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter.
Description
Technical field
The utility model relates to a kind of assessment devices of transient earth voltage PD meter positioning function, belong to power equipment part
Discharge detecting technique field.
Background technique
Partial Discharge Detection is a kind of important means of Electric Power Equipment Insulation diagnosis.
When shelf depreciation occurs for switchgear insulation against ground part, high-pressure electrified conductor is few to just having between ground connection metal-back
Measure capacitive discharge electricity, at the same generate on the metal cabinet of switchgear transient state voltage-to-ground (generally tens millis extremely
Several volts, time only have several nanoseconds), excretion disposal is placed in box shell outside switchgear metal at this time to detect this letter
Number, so as to effectively detect the initial failure of equipment.But current PD meter is in use, generally existing not have
Special institutions conduct periodic detection, the performance of equipment and accuracy are difficult to ensure, it is difficult to authentic and valid reaction power equipment
Operating condition.
Utility model content
The utility model aims at the problems existing in the prior art, and provides a kind of surveys of transient earth voltage PD meter positioning function
Device is commented, the utility model can ensure that the precision of instrument on-site test, reliability, ensure the safely and effectively fortune of power equipment
Row.
The utility model be solve its technical problem and the technical solution adopted is that:
A kind of assessment device of transient earth voltage PD meter positioning function, including computer, programmable signal generator, height
Performance oscillograph, metal plate, insulation board, workbench, transient earth voltage PD meter, two transient earth voltage sensors may be programmed
Signal generator is connect by coaxial output line cable I with computer, and the signal output end of programmable signal generator passes through coaxial
Output cord II is connect with metal plate bottom end central point, and the signal output end of programmable signal generator passes through coaxial output line cable
III connect with high-performance oscillograph, and insulation board is arranged on the table, and metal plate is arranged on insulation board, two transient earth voltages
The probe of sensor is separately positioned on the metal plate of metal plate central horizontal axis and/or vertical axis, and transient earth voltage passes
Sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
The computer generates the preset calibration pulse letter for meeting power industry for controlling programmable signal generator
Number；
The programmable signal generator, for generating the calibration pulse signal for meeting power industry, calibration pulse signal
Pulsewidth be 5 ~ 50ns, amplitude be 100mv ~ 10V；
The high-performance oscillograph, for monitoring the pulse signal of programmable signal generator output；
Further, the length of the metal plate is 2 ~ 3 meters, and width is 0.6 ~ 1.2 meter, with a thickness of 2 ~ 5mm；
Further, the probe of described two transient earth voltage sensors be separately positioned on metal plate central horizontal axis or
On the metal plate of vertical axis, the probe of two transient earth voltage sensors is separately positioned on metal plate central axis two sides, and two
Distance of the probe of a transient earth voltage sensor away from central axis and not less than 900mm and two transient earth voltage sensor
The range difference away from central axis of popping one's head in is not less than 300mm；
Further, the probe of described two transient earth voltage sensors be separately positioned on metal plate central horizontal axis and
On the metal plate of vertical axis, the probes of two transient earth voltage sensors away from the distance of central axis and not less than 900mm and
Range difference of the probe of two transient earth voltage sensors away from central axis is not less than 300mm；
Further, by bolt, screw or setting is welded and fixed in metal plate bottom end in the coaxial output line cable II
Heart point.
Transient earth voltage PD meter is carried out using the assessment device of the utility model transient earth voltage PD meter positioning function
Positioning function assessment method:
(1) horizontal median axis (X-axis) and vertical central axes (Y-axis) is constructed by origin of the center of metal plate, temporarily by two
The probe of state ground voltage sensor is separately positioned on the metal of metal plate central horizontal axis (X-axis) and/or vertical axis (Y-axis)
On plate；
(2) transient earth voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
(3) computer controls programmable signal generator by computer program and generates the preset mark for meeting power industry
Quasi- pulse signal, the pulsewidth of calibration pulse signal are 5 ~ 50ns, and amplitude is 100mv ~ 10V；
(4) the calibration pulse signal for meeting power industry for generating programmable signal generator passes through coaxial output line cable
II is transported to metal plate bottom end central point, and the calibration pulse signal for meeting power industry that programmable signal generator is generated
High-performance oscillograph is transported to by coaxial output line cable III to monitor the original signal of the outputting standard pulse signal；
(5) the calibration pulse letter of the probe positions of two transient earth voltage sensors is observed by transient earth voltage PD meter
Number reach situation.
It is easily operated, data are quasi- the utility model has the beneficial effects that the utility model can be realized the convenient assessment of PD meter
Really, it efficiently solves the problems, such as PD meter periodic detection, has ensured the precision of PD meter positioning function；
The utility model can ensure that the precision of instrument on-site test, reliability, ensure the safely and effectively fortune of power equipment
Row；With preferable economic and social benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the assessment device of embodiment transient earth voltage PD meter positioning function；
Fig. 2 is that the assessment device of 1 ~ 3 transient earth voltage PD meter positioning function of embodiment carries out positioning evaluation schematic diagram.
Specific embodiment
With reference to embodiment, the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, a kind of assessment device of transient earth voltage PD meter positioning function, including computer,
Programmable signal generator, high-performance oscillograph, metal plate, insulation board, workbench, transient earth voltage PD meter, two transient state
Ground voltage sensor, programmable signal generator are connect by coaxial output line cable I with computer, programmable signal generator
Signal output end is connect by coaxial output line cable II with metal plate bottom end central point, the signal output of programmable signal generator
End is connect by coaxial output line cable III with high-performance oscillograph, and insulation board is arranged on the table, and metal plate setting is being insulated
On plate, the probe of two transient earth voltage sensors is separately positioned on the metal plate of metal plate central horizontal axis, transient state
Voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
Computer described in the present embodiment generates the preset mark for meeting power industry for controlling programmable signal generator
Quasi- pulse signal；
Programmable signal generator described in the present embodiment, for generating the calibration pulse signal for meeting power industry；
High-performance oscillograph described in the present embodiment, for monitoring the pulse signal of programmable signal generator output；
The length of metal plate described in the present embodiment is 2 meters, and width is 0.9 meter, with a thickness of 2mm；
The probe of the described two transient earth voltage sensors of the present embodiment is separately positioned on metal plate central horizontal axis, and two
The probe of a transient earth voltage sensor is separately positioned on metal plate central axis two sides, the spy of two transient earth voltage sensors
Distance of the head away from central axis and for the probe of 900mm and two transient earth voltage sensor it is away from the range difference of central axis
300mm；
Coaxial output line cable II described in the present embodiment is fixed at metal plate bottom end central point by bolt or screw；
As shown in Fig. 2, with carrying out transient state electric using the assessment device of the present embodiment transient earth voltage PD meter positioning function
Press PD meter positioning function assessment method:
(1) horizontal median axis (X-axis) and vertical central axes (Y-axis) is constructed by origin of the center of metal plate, temporarily by two
The probe of state ground voltage sensor is separately positioned on A point (the A point coordinate on the metal plate of metal plate central horizontal axis (X-axis)
For (300,0)) and B point (B point coordinate is (- 600,0))；
(2) transient earth voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
(3) computer controls programmable signal generator by computer program and generates the preset mark for meeting power industry
Quasi- pulse signal, the pulsewidth of calibration pulse signal are 50 ns, amplitude 10V；
(4) the calibration pulse signal for meeting power industry for generating programmable signal generator passes through coaxial output line cable
II is transported to metal plate bottom end central point, and the calibration pulse signal for meeting power industry that programmable signal generator is generated
High-performance oscillograph is transported to by coaxial output line cable III to monitor the original signal of the outputting standard pulse signal；
(5) probe positions A point (the A point coordinate of two transient earth voltage sensors is observed by transient earth voltage PD meter
For (300,0)) and the calibration pulse signal of B point (B point coordinate be (- 600,0)) reach situation, repetitive operation 20 times to calculate
The accuracy rate of equipment positioning function.
Embodiment 2: the assessment device and 1 transient earth voltage of embodiment of the present embodiment transient earth voltage PD meter positioning function
The structure of the assessment device of PD meter positioning function is essentially identical, the difference is that: coaxial output line cable described in the present embodiment
II is arranged by being welded and fixed in metal plate bottom end central point；
As shown in Fig. 2, with carrying out transient state electric using the assessment device of the present embodiment transient earth voltage PD meter positioning function
Press PD meter positioning function assessment method:
(1) horizontal median axis (X-axis) and vertical central axes (Y-axis) is constructed by origin of the center of metal plate, temporarily by two
The probe of state ground voltage sensor is separately positioned on A point (the A point coordinate on the metal plate of metal plate central horizontal axis (X-axis)
For (600,0)) and B point (A point coordinate is (- 300,0))；
(2) transient earth voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
(3) computer controls programmable signal generator by computer program and generates the preset mark for meeting power industry
Quasi- pulse signal, the pulsewidth of calibration pulse signal are 50ns, and amplitude is 10 V；
(4) the calibration pulse signal for meeting power industry for generating programmable signal generator passes through coaxial output line cable
II is transported to metal plate bottom end central point, and the calibration pulse signal for meeting power industry that programmable signal generator is generated
High-performance oscillograph is transported to by coaxial output line cable III to monitor the original signal of the outputting standard pulse signal；
(5) probe positions A point (the A point coordinate of two transient earth voltage sensors is observed by transient earth voltage PD meter
For (600,0)) and the calibration pulse signal of B point (B point coordinate be (- 300,0)) reach situation, repetitive operation 20 times to calculate
The accuracy rate of equipment positioning function.
Embodiment 3: the assessment device and 1 transient earth voltage of embodiment of the present embodiment transient earth voltage PD meter positioning function
The structure of the assessment device of PD meter positioning function is essentially identical, the difference is that: the spy of two transient earth voltage sensors
Head is separately positioned on the metal plate of metal plate central vertical axis；The spy of the described two transient earth voltage sensors of the present embodiment
Head is separately positioned on metal plate central vertical axis, and the probe of two transient earth voltage sensors is separately positioned on metal plate center
The probe of axis two sides, two transient earth voltage sensors away from the distance of central axis and is 900mm and two transient earth voltage
Range difference of the probe of sensor away from central axis is 300mm；
As shown in Fig. 2, with carrying out transient state electric using the assessment device of the present embodiment transient earth voltage PD meter positioning function
Press PD meter positioning function assessment method:
(1) horizontal median axis (X-axis) and vertical central axes (Y-axis) is constructed by origin of the center of metal plate, temporarily by two
The probe of state ground voltage sensor is separately positioned on A point (the A point coordinate on the metal plate of metal plate central vertical axis (Y-axis)
For (0,300)) and B point (B point coordinate is (0, -600))；
(2) transient earth voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
(3) computer controls programmable signal generator by computer program and generates the preset mark for meeting power industry
Quasi- pulse signal, the pulsewidth of calibration pulse signal are 50ns, amplitude 10V；
(4) the calibration pulse signal for meeting power industry for generating programmable signal generator passes through coaxial output line cable
II is transported to metal plate bottom end central point, and the calibration pulse signal for meeting power industry that programmable signal generator is generated
High-performance oscillograph is transported to by coaxial output line cable III to monitor the original signal of the outputting standard pulse signal；
(5) probe positions A point (the A point coordinate of two transient earth voltage sensors is observed by transient earth voltage PD meter
For (0,300)) and the calibration pulse signal of B point (B point coordinate be (0, -600)) reach situation, repetitive operation 20 times to calculate
The accuracy rate of equipment positioning function.
Embodiment 4: the assessment device and 3 transient earth voltage of embodiment of the present embodiment transient earth voltage PD meter positioning function
The structure of the assessment device of PD meter positioning function is essentially identical, the difference is that: the length of metal plate described in the present embodiment
It is 2.5 meters, width is 0.7 meter, with a thickness of 3mm；Coaxial output line cable II described in the present embodiment is arranged by being welded and fixed in gold
Belong to board bottom end central point；
It is fixed that transient earth voltage PD meter is carried out using the assessment device of the present embodiment transient earth voltage PD meter positioning function
Bit function assessment method:
(1) horizontal median axis (X-axis) and vertical central axes (Y-axis) is constructed by origin of the center of metal plate, temporarily by two
The probe of state ground voltage sensor is separately positioned on A point (the A point coordinate on the metal plate of metal plate central vertical axis (Y-axis)
For (0, -300)) and B point (B point coordinate is (0,600))；
(2) transient earth voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
(3) computer controls programmable signal generator by computer program and generates the preset mark for meeting power industry
Quasi- pulse signal, the pulsewidth of calibration pulse signal are 50ns, amplitude 10V；
(4) the calibration pulse signal for meeting power industry for generating programmable signal generator passes through coaxial output line cable
II is transported to metal plate bottom end central point, and the calibration pulse signal for meeting power industry that programmable signal generator is generated
High-performance oscillograph is transported to by coaxial output line cable III to monitor the original signal of the outputting standard pulse signal；
(5) probe positions A point (the A point coordinate of two transient earth voltage sensors is observed by transient earth voltage PD meter
For (0, -300)) and the calibration pulse signal of B point (B point coordinate be (0,600)) reach situation, repetitive operation 20 times to calculate
The accuracy rate of equipment positioning function.
Embodiment 5: the assessment device and 1 transient earth voltage of embodiment of the present embodiment transient earth voltage PD meter positioning function
The structure of the assessment device of PD meter positioning function is essentially identical, the difference is that: the length of metal plate described in the present embodiment
It is 3 meters, width is 1.0 meters, with a thickness of 4mm；The probe of two transient earth voltage sensors is separately positioned on edema with the heart involved in metal plate
On the metal plate of flat axis and vertical axis, the probe of the described two transient earth voltage sensors of the present embodiment is separately positioned on gold
On the metal plate for belonging to plate central horizontal axis and vertical axis, the probes of two transient earth voltage sensors away from central axis away from
It is 300mm from the range difference with the probe for 900mm and two transient earth voltage sensor away from central axis；
It is fixed that transient earth voltage PD meter is carried out using the assessment device of the present embodiment transient earth voltage PD meter positioning function
Bit function assessment method:
(1) horizontal median axis (X-axis) and vertical central axes (Y-axis) is constructed by origin of the center of metal plate, temporarily by two
The probe of state ground voltage sensor is separately positioned on A point (the A point coordinate on the metal plate of metal plate central horizontal axis (X-axis)
For the B point on the metal plate of (600,0) and vertical axis (Y-axis) (B point coordinate is (0,300))；
(2) transient earth voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
(3) computer controls programmable signal generator by computer program and generates the preset mark for meeting power industry
Quasi- pulse signal, the pulsewidth of calibration pulse signal are 50ns, amplitude 10V；
(4) the calibration pulse signal for meeting power industry for generating programmable signal generator passes through coaxial output line cable
II is transported to metal plate bottom end central point, and the calibration pulse signal for meeting power industry that programmable signal generator is generated
High-performance oscillograph is transported to by coaxial output line cable III to monitor the original signal of the outputting standard pulse signal；
(5) probe positions A point (the A point coordinate of two transient earth voltage sensors is observed by transient earth voltage PD meter
For (600,0)) and the calibration pulse signal of B point (B point coordinate be (0,300)) reach situation, repetitive operation 20 times to calculate
The accuracy rate of equipment positioning function.
Specific embodiment of the utility model is explained in detail above in conjunction with attached drawing, but the utility model and unlimited
In above-described embodiment, within the knowledge of a person skilled in the art, the utility model can also not departed from
Various changes can be made under the premise of objective.
Claims (5)
1. a kind of assessment device of transient earth voltage PD meter positioning function, it is characterised in that: including computer, programmable signal
Generator, high-performance oscillograph, metal plate, insulation board, workbench, transient earth voltage PD meter, two transient earth voltage sensings
Device, programmable signal generator are connect by coaxial output line cable I with computer, the signal output end of programmable signal generator
It is connect by coaxial output line cable II with metal plate bottom end central point, the signal output end of programmable signal generator passes through coaxial
Output cord III is connect with high-performance oscillograph, and insulation board is arranged on the table, and metal plate is arranged on insulation board, and two temporarily
The probe of state ground voltage sensor is separately positioned on the metal plate of metal plate central horizontal axis and/or vertical axis, transient state
Ground voltage sensor is connect by coaxial output line cable IV with transient earth voltage PD meter；
The computer generates the preset calibration pulse signal for meeting power industry for controlling programmable signal generator；
The programmable signal generator, for generating the calibration pulse signal for meeting power industry, the arteries and veins of calibration pulse signal
Width is 5 ~ 50ns, and amplitude is 100mv ~ 10V；
The high-performance oscillograph, for monitoring the pulse signal of programmable signal generator output.
2. the assessment device of transient earth voltage PD meter positioning function according to claim 1, it is characterised in that: metal plate
Length is 2 ~ 3 meters, and width is 0.6 ~ 1.2 meter, with a thickness of 2 ~ 5mm.
3. the assessment device of transient earth voltage PD meter positioning function according to claim 1, it is characterised in that: two transient state
The probe of ground voltage sensor is separately positioned on the metal plate of metal plate central horizontal axis or vertical axis, two transient state
The probe of voltage sensor is separately positioned on metal plate central axis two sides, and the probe of two transient earth voltage sensors is away from center
The distance of axis and it is not less than not less than the probe of 900mm and two transient earth voltage sensor away from the range difference of central axis
300mm。
4. the assessment device of transient earth voltage PD meter positioning function according to claim 1, it is characterised in that: two transient state
The probe of ground voltage sensor is separately positioned on the metal plate of metal plate central horizontal axis and vertical axis, two transient state
Distance of the probe of voltage sensor away from central axis and not less than 900mm and two transient earth voltage sensor probe away from
The range difference of mandrel line is not less than 300mm.
5. the assessment device of transient earth voltage PD meter positioning function according to claim 1, it is characterised in that: coaxial output
Cable II is by bolt, screw or setting is welded and fixed in metal plate bottom end central point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820708933.XU CN208537705U (en) | 2018-05-14 | 2018-05-14 | A kind of assessment device of transient earth voltage PD meter positioning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820708933.XU CN208537705U (en) | 2018-05-14 | 2018-05-14 | A kind of assessment device of transient earth voltage PD meter positioning function |
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| Publication Number | Publication Date |
|---|---|
| CN208537705U true CN208537705U (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820708933.XU Expired - Fee Related CN208537705U (en) | 2018-05-14 | 2018-05-14 | A kind of assessment device of transient earth voltage PD meter positioning function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519572A (en) * | 2018-05-14 | 2018-09-11 | 昆明理工大学 | A kind of assessment device and assessment method of transient earth voltage PD meter |
-
2018
- 2018-05-14 CN CN201820708933.XU patent/CN208537705U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519572A (en) * | 2018-05-14 | 2018-09-11 | 昆明理工大学 | A kind of assessment device and assessment method of transient earth voltage PD meter |
| CN108519572B (en) * | 2018-05-14 | 2023-09-26 | 昆明理工大学 | Evaluation device and evaluation method for transient ground voltage partial discharge instrument |
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