CN203858330U - Portable intelligent electronic device for monitoring partial discharge of transformer online - Google Patents
Portable intelligent electronic device for monitoring partial discharge of transformer online Download PDFInfo
- Publication number
- CN203858330U CN203858330U CN201420172208.7U CN201420172208U CN203858330U CN 203858330 U CN203858330 U CN 203858330U CN 201420172208 U CN201420172208 U CN 201420172208U CN 203858330 U CN203858330 U CN 203858330U
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- Prior art keywords
- partial discharge
- intelligent electronic
- electronic device
- transformer
- sensor
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- Expired - Lifetime
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 230000001360 synchronised effect Effects 0.000 claims abstract description 13
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 10
- 239000013307 optical fiber Substances 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 abstract 3
- 239000000835 fiber Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
Provided is a portable intelligent electronic device for monitoring the partial discharge of a transformer online. A partial discharge sensor is connected with a signal conditioning module, a trigger module and a multipath synchronous A/D converter are connected in parallel between the signal conditioning module and a master control module, and the master control module is connected with fiber/Ethernet interfaces and a liquid crystal screen. The partial discharge sensor mainly convert partial discharge signals of the transformer into electric signals; the signal conditioning module provides constant current for the partial discharge sensor so that the partial discharge sensor works normally, and at the same time isolates DC component of output signals of the partial discharge sensor; and the trigger module sets a threshold of vibration signal collection according to practical states, and triggers the master control module and starts the partial signal collection flow when the partial discharge signal exceeds the threshold. The portable intelligent electronic device monitors and analyzes partial discharge signals to determine whether certain hidden insulation trouble exists in the transformer, thereby realizing online monitoring for partial discharge in the transformer, and improving the accuracy and reliability of partial discharge detection.
Description
Technical field
The utility model belongs to intelligent grid on-line monitoring apparatus field, particularly a kind of for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge.
Background technology
Transformer (Transformer) is to utilize the principle of electromagnetic induction to change the device of alternating voltage, main member is primary coil, secondary coil and iron core (magnetic core), major function has: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing (magnetic saturation transformer) etc., by purposes, can be divided into: substation transformer, power transformer, full-sealed transformer, combined transformer, dry-type transformer, oil-filled transformer, single transformer, furnace transformer, rectifier transformer etc., shelf depreciation is the one of the main reasons that causes transformer insulated performance degradation, also be the key character of describing Transformer Insulation Aging simultaneously.
The technology of shelf depreciation not being monitored on market now.
Summary of the invention
The purpose of this utility model is to overcome above-described problem.
The purpose of this utility model is achieved in that and on-line monitoring dual-purpose intelligent electronic device portable for transformer partial discharge, comprise that it is standard communication interface that sensor, signal condition module, trigger module, multi-channel synchronous A/D converter, main control module, optical fiber/Ethernet interface are put in office, it is characterized in that: described office puts sensor and is connected with signal condition module, is connected in parallel to trigger module, multi-channel synchronous A/D converter between signal condition module and main control module; Described main control module is connected with optical fiber/Ethernet interface and liquid crystal display respectively.
Described office puts sensor and mainly transformer partial discharge signal is transformed into electric signal.
Described signal condition module is put sensor for office provides steady current, and normal operation of sensor is put in the office of making, and the DC component in sensor output signal is put in the office of isolation simultaneously.
Described trigger module, according to the threshold values of actual conditions dynamic setting vibration signals collecting, triggers main control module and starts Partial discharge signal collecting flowchart when Partial discharge signal surpasses threshold voltage.
Described multi-channel synchronous A/D converter completes the synchronous digital conversion of each passage Partial discharge signal in intelligent electronic device.
Described main control module completes data acquisition, storage, the analysis of whole system, and analysis result is shown on liquid crystal display, sends with IEC61850 standard format simultaneously.
Described optical fiber/Ethernet interface is standard communication interface, and the office of completing puts monitoring intelligent electronic equipment and is connected with the communication of other system.
It is High Frequency Current Sensor or sonac that sensor is put in described office.
The utility model, by the monitoring of Partial discharge signal and analysis, just can judge whether transformer inside exists certain insulation hidden danger, realizes the on-line monitoring that the inner office of transformer puts, and accuracy and the reliability of detection put in raising office.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Portable and the dual-purpose intelligent electronic device of on-line monitoring for transformer partial discharge, comprise that it is standard communication interface that sensor, signal condition module, trigger module, multi-channel synchronous A/D converter, main control module, optical fiber/Ethernet interface are put in office, office puts sensor and is connected with signal condition module, is connected in parallel to trigger module, multi-channel synchronous A/D converter between signal condition module and main control module; Main control module is connected with optical fiber/Ethernet interface and liquid crystal display respectively; Office puts sensor and mainly transformer partial discharge signal is transformed into electric signal; Signal condition module is put sensor for office steady current is provided, and normal operation of sensor is put in the office of making, and the DC component in sensor output signal is put in the office of isolation simultaneously; Trigger module, according to the threshold values of actual conditions dynamic setting vibration signals collecting, triggers main control module and starts Partial discharge signal collecting flowchart when Partial discharge signal surpasses threshold voltage; Multi-channel synchronous A/D converter completes the synchronous digital conversion of each passage Partial discharge signal in intelligent electronic device; Main control module completes data acquisition, storage, the analysis of whole system, and analysis result is shown on liquid crystal display, sends with IEC61850 standard format simultaneously; Optical fiber/Ethernet interface is standard communication interface, and the office of completing puts monitoring intelligent electronic equipment and is connected with the communication of other system; It is High Frequency Current Sensor or sonac that sensor is put in office.
During concrete enforcement, ultrahigh frequency (UHF) detection method that mainly adopts the utility model realizes the on-line monitoring that the inner office of transformer puts, also can in conjunction with high-frequency current (HFCT), ultrasonic (AE) sensor raising office, put accuracy and the reliability of detection simultaneously, according to transformer concrete structure and installation site (in operation hand hole, fuel outlet valve or near sleeve pipe) adopt different UHF sensors: HFCT can be on demand on height, medium-tension bushing end shield, neutral ground line, iron core grounding line or install on folder ground wire; External ultrasonic sensor adopts magnetic adsorption type structure, is adsorbed on fuel tank outer wall, can under running state of transformer, install at any time; The utility model features such as antijamming capability is strong, highly sensitive except possessing, real-time is good, in aspect application test and test datas for many years such as defect fingerprint base, data analysis and fault type recognition, correlation technique possesses the leading level in the world; The utility model is used the tupe of ARM and FPGA, and Monitoring Data and analysis result are presented on the liquid crystal display of device in real time, possesses optical fiber communication port simultaneously, data can be uploaded to Control of Power Plant chamber by IEC61850 agreement; Band liquid crystal display shows that making device can be used as portable instrument uses at the scene, and band data upload port can be used device as on-line monitoring equipment for a long time.
Those skilled in the art can carry out various remodeling and change to the utility model, and therefore, the utility model has covered various remodeling and the change in the scope that falls into appending claims and equivalent thereof.
Claims (8)
1. for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge, comprise that it is standard communication interface that sensor, signal condition module, trigger module, multi-channel synchronous A/D converter, main control module, optical fiber/Ethernet interface are put in office, it is characterized in that: described office puts sensor and is connected with signal condition module, is connected in parallel to trigger module, multi-channel synchronous A/D converter between signal condition module and main control module; Described main control module is connected with optical fiber/Ethernet interface and liquid crystal display respectively.
2. as claimed in claim 1 for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge, it is characterized in that: described office puts sensor and mainly transformer partial discharge signal is transformed into electric signal.
3. as claimed in claim 1 for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge, it is characterized in that: described signal condition module is put sensor for office provides steady current, make office put normal operation of sensor, the DC component in sensor output signal is put in the office of isolation simultaneously.
4. as claimed in claim 1 for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge, it is characterized in that: described trigger module, according to the threshold values of actual conditions dynamic setting vibration signals collecting, triggers main control module and starts Partial discharge signal collecting flowchart when Partial discharge signal surpasses threshold voltage.
5. as claimed in claim 1 for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge, it is characterized in that: described multi-channel synchronous A/D converter completes the synchronous digital conversion of each passage Partial discharge signal in intelligent electronic device.
6. as claimed in claim 1 for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge, it is characterized in that: described main control module completes the data acquisition of whole system, storage, analysis, and analysis result is shown on liquid crystal display, with IEC61850 standard format, send simultaneously.
7. as claimed in claim 1 for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge, it is characterized in that: described optical fiber/Ethernet interface is standard communication interface, the office of completing puts monitoring intelligent electronic equipment and is connected with the communication of other system.
8. as claimed in claim 1 for the portable and dual-purpose intelligent electronic device of on-line monitoring of transformer partial discharge, it is characterized in that: it is High Frequency Current Sensor or sonac that sensor is put in described office.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420172208.7U CN203858330U (en) | 2014-04-10 | 2014-04-10 | Portable intelligent electronic device for monitoring partial discharge of transformer online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420172208.7U CN203858330U (en) | 2014-04-10 | 2014-04-10 | Portable intelligent electronic device for monitoring partial discharge of transformer online |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858330U true CN203858330U (en) | 2014-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420172208.7U Expired - Lifetime CN203858330U (en) | 2014-04-10 | 2014-04-10 | Portable intelligent electronic device for monitoring partial discharge of transformer online |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941164A (en) * | 2014-04-10 | 2014-07-23 | 江苏骏龙电力科技股份有限公司 | Portable intelligent dual-purpose electronic device for partial discharge and on-line monitoring of transformer |
-
2014
- 2014-04-10 CN CN201420172208.7U patent/CN203858330U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941164A (en) * | 2014-04-10 | 2014-07-23 | 江苏骏龙电力科技股份有限公司 | Portable intelligent dual-purpose electronic device for partial discharge and on-line monitoring of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214500 No. 2 Jian An Road, Jingjiang, Jiangsu Patentee after: JIANGSU JUNLONG PHOTOELECTRIC TECHNOLOGY CO.,LTD. Address before: 214500, No. 2, Jianan Road, Jingjiang, Jiangsu, Taizhou Patentee before: JIANGSU JUNLONG ELECTRIC TECHNOLOGY CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20141001 |
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| CX01 | Expiry of patent term |