CN209446715U - Based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection - Google Patents
Based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection Download PDFInfo
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- CN209446715U CN209446715U CN201821769478.0U CN201821769478U CN209446715U CN 209446715 U CN209446715 U CN 209446715U CN 201821769478 U CN201821769478 U CN 201821769478U CN 209446715 U CN209446715 U CN 209446715U
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 230000003321 amplification Effects 0.000 claims abstract description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
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- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
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Abstract
The utility model discloses one kind based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection, it includes high-frequency signal sensor, the high-frequency signal sensor is with the iron core of transformer and connector as high-frequency signal antenna, receive the high-frequency signal that shelf depreciation generates, the high-frequency signal inputs RF gain module by filter circuit and carries out signal amplification, the amplified high-frequency signal inputs logafier, radio-frequency input signals is converted to corresponding voltage signal, after being improved by signal output apparatus, export local discharge signal, the discharge signal is input to detection host and is stored and shown；Power circuit is respectively that the filter circuit, RF gain module, logafier and signal output apparatus provide working power.
Description
Technical field:
The utility model relates to a kind of transformer discharge detection techniques, are based on transformer core and folder more particularly to one kind
Shelf depreciation high-frequency signal detection device at part ground connection.
Background technique:
1000kV power transformer is the core equipment in power grid, and reliability directly affects the safety of electric system and steady
It is fixed.Field experience shows that insulation failure is the one of the major reasons for influencing power transformer reliability service, and failure often originates from
Insulation degradation caused by the defect existing for power transformer built-in electrical insulation and various factors etc..Partial discharge phenomenon and insulation
The reason of factors such as defect, material degradation and running environment are closely related, it is both insulation defect and deterioration and insulation lack
The tendency and the form of expression for falling into and deteriorating.Compared with other insulation detecting methods, the detection of shelf depreciation can reflect electricity in advance
The insulation status of power transformer equipment, the timely and effectively insulation defect inside discovering device, prevention latency and burst sexual behavior
Therefore generation.
Along with the generation of electric power transformer insulated middle shelf depreciation, the transfer of discharge charge will be formed in discharge loop
Pulse signal, and high frequency electromagnetic radiation signal is generated, therefore pass through electromagnetism spoke received at transformer core and folder ground connection
Signal is penetrated to detect transformer partial discharge signal.
Utility model content:
The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide it is a kind of design rationally, energy
It enough monitors discharge signal and detection is accurately based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection.
The technical solution of the utility model is:
One kind is passed based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection, including high-frequency signal
Sensor, it is characterized in that: the high-frequency signal sensor is with the iron core of transformer and connector as high-frequency signal antenna, office of acceptance
The high-frequency signal that portion's electric discharge generates, the high-frequency signal input RF gain module by filter circuit and carry out signal amplification, amplification
The high-frequency signal afterwards inputs logafier, and radio-frequency input signals is converted to corresponding voltage signal, exports electricity by signal
After the conditioning of road, local discharge signal is exported, the discharge signal is input to detection host and is stored and shown；Power circuit point
It is not the filter circuit, RF gain module, logafier and signal output apparatus provide working power.
The RF gain module is made of AD5545 and auxiliary circuit；The logafier is by AD5513 and auxiliary circuit
Composition；The power circuit is connect with external power supply.
The beneficial effects of the utility model are:
1, the utility model receives the height that shelf depreciation generates with transformer core and connector as high-frequency signal antenna
Then frequency signal inputs RF gain module by filter circuit and carries out signal amplification, improves monitoring precision.
2, radio frequency (RF) input signal is converted to corresponding voltage signal by the utility model, then by signal output apparatus
After conditioning, local discharge signal is exported, it is practical convenient for promoting, it has high economic benefit and social benefit.
Detailed description of the invention:
Fig. 1 is the schematic diagram of the utility model.
Specific embodiment:
Embodiment: referring to Fig. 1, based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection, packet
High-frequency signal sensor is included, high-frequency signal sensor is with the iron core of transformer and connector as high-frequency signal antenna, office of acceptance
The high-frequency signal that portion's electric discharge generates, high-frequency signal inputs RF gain module by filter circuit and carries out signal amplification, amplified
High-frequency signal inputs logafier, and radio-frequency input signals is converted to corresponding voltage signal, after being improved by signal output apparatus,
Local discharge signal is exported, discharge signal is input to detection host and is stored and shown；Power circuit be respectively filter circuit,
RF gain module, logafier and signal output apparatus provide working power.
RF gain module is made of AD5545 and auxiliary circuit；Logafier is made of AD5513 and auxiliary circuit；Electricity
Source circuit is connect with external power supply.
The utility model, as high-frequency signal antenna, receives the high frequency that shelf depreciation generates with transformer core and connector
Then signal inputs RF gain module by filter circuit and carries out signal amplification, improves monitoring precision.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, it is made by the above technical examples according to the technical essence of the present invention it is any it is simple modification, equivalent variations with
Modification, is still within the scope of the technical solutions of the present invention.
Claims (2)
1. one kind is based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection, including high-frequency signal sensing
Device, it is characterized in that: the high-frequency signal sensor is with the iron core of transformer and connector as high-frequency signal antenna, reception part
Discharge the high-frequency signal generated, and the high-frequency signal inputs RF gain module by filter circuit and carries out signal amplification, after amplification
The high-frequency signal input logafier, radio-frequency input signals is converted to corresponding voltage signal, by signal output apparatus
After conditioning, local discharge signal is exported, the discharge signal is input to detection host and is stored and shown；Power circuit difference
Working power is provided for the filter circuit, RF gain module, logafier and signal output apparatus.
2. according to claim 1 be based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection,
It is characterized in that: the RF gain module is made of AD5545 and auxiliary circuit；The logafier is by AD5513 and auxiliary electricity
Road composition；The power circuit is connect with external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769478.0U CN209446715U (en) | 2018-10-30 | 2018-10-30 | Based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769478.0U CN209446715U (en) | 2018-10-30 | 2018-10-30 | Based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446715U true CN209446715U (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821769478.0U Active CN209446715U (en) | 2018-10-30 | 2018-10-30 | Based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection |
Country Status (1)
| Country | Link |
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| CN (1) | CN209446715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116015321A (en) * | 2023-01-03 | 2023-04-25 | 深圳市西京电力科技有限公司 | Novel wireless communication rotary transformer |
-
2018
- 2018-10-30 CN CN201821769478.0U patent/CN209446715U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116015321A (en) * | 2023-01-03 | 2023-04-25 | 深圳市西京电力科技有限公司 | Novel wireless communication rotary transformer |
| CN116015321B (en) * | 2023-01-03 | 2024-05-10 | 广东立勤电子有限公司 | Wireless communication rotary transformer |
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