CN203299292U - Professional inspection equipment for insulation state of transformer - Google Patents
Professional inspection equipment for insulation state of transformer Download PDFInfo
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- CN203299292U CN203299292U CN2013202797122U CN201320279712U CN203299292U CN 203299292 U CN203299292 U CN 203299292U CN 2013202797122 U CN2013202797122 U CN 2013202797122U CN 201320279712 U CN201320279712 U CN 201320279712U CN 203299292 U CN203299292 U CN 203299292U
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- 238000007689 inspection Methods 0.000 title claims abstract description 15
- 238000009413 insulation Methods 0.000 title claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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Abstract
The utility model discloses professional inspection equipment for the insulation state of a transformer, which comprises an acquisition fixed terminal and a data acquisition mobile terminal. The acquisition fixed terminal is arranged on the grounding wire of the iron core of a power transformer and is used for detecting current data. The data acquisition mobile terminal is arranged on a professional inspection vehicle or is manually held. According to the technical scheme of the utility model, both the speed and the efficiency of the real-time inspection operation on the insulation state of a transformer are improved, while the workload of inspection personnel is lowered. Meanwhile, the equipment is convenient to use and wireless communication equipment of 2.4 GHz frequency band is low in price. The professional inspection equipment is particularly suitable for the on-site regular inspection operation on the insulation state of power transformers by mains supply enterprises.
Description
Technical field: the utility model belongs to the electrotechnical measurement field, is used in the electric power transformer insulated status checkout work that is in operation.
In background technology: DL/T596-1996 " power equipment preventive trial rules ", the 6th joint " power transformer and inductor " requires: iron core grounding current in service is not more than 0.1A.By the transformer core ground line current, detect, the large I of its measured value is judged the state of insulation of transformer, present stage mainly contains to the detection of its running status have a power failure test detection, on-line monitoring, band electro-detection, and these methods play larger effect in the grid equipment state-detection online.But owing to having a power failure, detect test, can not obtain the running state of transformer test figure.The monitoring equipment of on-line monitoring mode, the aspect construction and installation such as remote communication, equipment power supply are more complicated, need the corresponding cable of layout could realize the function of far-end monitoring, and daily maintenance workload are larger.Charged detection mode, the portable detection equipment that all uses, though can obtain needing in real time the physical quantity that detects, can not to the monitoring variable of equipment under test, carry out in the long period monitoring of long period, as need, obtaining more complete equipment operational monitoring data has certain limitation.Transformer insulation state specialty inspection device, by being arranged on the electrical transformer cores ground wire collection stiff end that detects current data and being placed in professional inspection car or artificial hand-held data acquisition mobile terminal forms, both adopt wireless communication mode, detect the professional at substation field by above-mentioned detection mode and equipment, the real-time detection of realization to electrical transformer cores ground wire electric current, complete electric power transformer insulated status checkout work.
Summary of the invention
the technical solution of the utility model is to solve like this: the utility model discloses the on-the-spot inspection device of a kind of electric power transformer insulated state, this device is by being arranged on the electrical transformer cores ground wire collection stiff end that detects current data and being placed in professional inspection car or artificial hand-held data acquisition mobile terminal forms, gather stiff end and comprise the power current mutual inductor, the power current mutual inductor is arranged on the transformer core ground wire, the iron core ground wire passes elementary as the power current mutual inductor of power current transformer iron core, and data processing unit, the signal input part of data processing unit is connecting power current mutual inductor secondary output terminal with cable, obtain current signal in the transformer core ground wire, data processing unit is by analog quantity and digital quantity conversion, and digital signal output end is connected to the data transmission unit based on the wireless communication networks of 2.4GHz frequency range, for uploading data, the data acquisition mobile terminal comprises the data receiver unit based on the wireless communication networks of 2.4GHz frequency range, data processing unit, data record unit and display unit, the input end of the signal output part connection data processing unit of data receiver unit, the output terminal of data processing unit is connecting respectively data record unit and data display unit, gathering the wireless communication networks by the 2.4GHz frequency range between stiff end and data acquisition mobile terminal is connected.
The utility model helps to improve speed and the efficiency of the real-time testing of transformer insulation state, reduce patrol officer's workload, easy to use, 2.4GHz the wireless telecommunications system of frequency range is cheap, is specially adapted to mains supply enterprise electric power transformer insulated state is carried out to on-the-spot regular visit work.
The accompanying drawing explanation: accompanying drawing 1 is structural representation of the present utility model;
Below in conjunction with 1 pair of content of the present utility model of accompanying drawing, be described in further detail.
Accompanying drawing 1: be syndeton block diagram of the present utility model.By be arranged on the electrical transformer cores ground wire collection stiff end (1) that detects current data and be placed in professional inspection car or manually hand-held data acquisition mobile terminal (2) form.
embodiment: in accompanying drawing 1, gather stiff end (1) and comprise power current mutual inductor CT, be arranged on the transformer core ground wire, the iron core ground wire passes elementary as the power current mutual inductor of power current transformer iron core, and data processing unit, the signal input part of data processing unit is connecting power current mutual inductor secondary output terminal with cable, obtain current signal in the transformer core ground wire, data processing unit forms by measuring modular converter and industrial single-chip microcomputer, after the AC signal that arrives by the measurement of power current mutual inductor and direct current signal conversion, through digital signal, change again, obtain digital signal, and digital signal output end is connected to the data transmission unit of the wireless communication networks of 2.4GHz frequency range, for uploading data, data acquisition mobile terminal (2) comprises the data receiver unit based on the wireless communication networks of 2.4GHz frequency range, data processing unit, data record unit and display unit, the input end of the signal output part connection data processing unit of data receiver unit, the output terminal of data processing unit is connecting respectively data record unit and data display unit, data processing unit is industrial single-chip microcomputer, display unit is a LCDs, data record unit is memory card reader, gathering the wireless communication networks by the 2.4GHz frequency range between stiff end (1) and data acquisition mobile terminal (2) is connected.
Claims (1)
1. transformer insulation state specialty inspection device, it is characterized in that: this device by be arranged on the electrical transformer cores ground wire collection stiff end (1) that detects current data and be placed in professional inspection car or manually hand-held data acquisition mobile terminal (2) form, gather stiff end (1) and comprise power current mutual inductor CT, be arranged on the transformer core ground wire, the iron core ground wire passes elementary as the power current mutual inductor of power current transformer iron core, and data processing unit, the signal input part of data processing unit is connecting power current mutual inductor secondary output terminal with cable, obtain current signal in the transformer core ground wire, data processing unit forms by measuring modular converter and industrial single-chip microcomputer, after the AC signal that arrives by the measurement of power current mutual inductor and direct current signal conversion, through digital signal, change again, obtain digital signal, and digital signal output end is connected to the data transmission unit of the wireless communication networks of 2.4GHz frequency range, for uploading data, data acquisition mobile terminal (2) comprises the data receiver unit based on the wireless communication networks of 2.4GHz frequency range, data processing unit, data record unit and display unit, the input end of the signal output part connection data processing unit of data receiver unit, the output terminal of data processing unit is connecting respectively data record unit and data display unit, data processing unit is industrial single-chip microcomputer, display unit is a LCDs, data record unit is memory card reader, gathering the wireless communication networks by the 2.4GHz frequency range between stiff end (1) and data acquisition mobile terminal (2) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202797122U CN203299292U (en) | 2013-05-21 | 2013-05-21 | Professional inspection equipment for insulation state of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202797122U CN203299292U (en) | 2013-05-21 | 2013-05-21 | Professional inspection equipment for insulation state of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203299292U true CN203299292U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202797122U Expired - Fee Related CN203299292U (en) | 2013-05-21 | 2013-05-21 | Professional inspection equipment for insulation state of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203299292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318732A (en) * | 2018-03-13 | 2018-07-24 | 国家电网公司 | A kind of transformer iron core grounding current on-Line Monitor Device and method |
-
2013
- 2013-05-21 CN CN2013202797122U patent/CN203299292U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318732A (en) * | 2018-03-13 | 2018-07-24 | 国家电网公司 | A kind of transformer iron core grounding current on-Line Monitor Device and method |
| CN108318732B (en) * | 2018-03-13 | 2024-01-23 | 国家电网公司 | On-line monitoring device and method for grounding current of transformer core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20200521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |