CN107764325A - A kind of transformer wall-hanging comprehensive on-line monitoring apparatus - Google Patents
A kind of transformer wall-hanging comprehensive on-line monitoring apparatus Download PDFInfo
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- CN107764325A CN107764325A CN201710951656.5A CN201710951656A CN107764325A CN 107764325 A CN107764325 A CN 107764325A CN 201710951656 A CN201710951656 A CN 201710951656A CN 107764325 A CN107764325 A CN 107764325A
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- detection module
- transformer
- host cpu
- line monitoring
- oil
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses a kind of transformer wall-hanging comprehensive on-line monitoring apparatus, including shell, enclosure is provided with host CPU plate, host CPU front edge of board is provided with LCDs, line oil film key is provided with LCDs, host CPU plate is fixedly installed on casing inner bag, and casing inner bag is fixedly installed on flange, casing inner bag rear portion is provided with cable sealed joint, and the host CPU plate includes micro- water detection module, oil dissolved gas detection module and optical fiber winding temperature detection module；The oil dissolved gas detection module is fixedly installed on flange, and micro- water detection module is arranged between oil dissolved gas detection module and flange；The present invention has simple in construction, easy for installation, the advantages of integrated level is high, comprehensive diagnos, and scalability is strong.
Description
Technical field
The invention belongs to electrical equipment technical field, more particularly to a kind of transformer wall-hanging comprehensive on-line monitoring apparatus.
Background technology
Power transformer is one of important operational outfit of power system, and whether its normal operation transports to power grid security
Row influences very big.From the point of view of crash analysis, many accidents are burst accidents caused by local fault expands.But at present to equipment
The criterion of operation conditions depends on preventive trial, and because the preventive trial cycle is grown, existing preventive trial project is to exhausted
The developing fault reaction of edge is insensitive.And local defect of the development speed in a few days to a few weeks tends not to find in time,
Accident accounts for larger ratio in Accident of Transformer statistics caused by this local defect even expands in several weeks in shorter time
Example.Therefore, implement the on-line monitoring of transformer has turned into an important component of insulation diagnosis.
There are many on-line monitoring class product producers in the market, product category is also multifarious, therefore client is selecting
Always find to lack emphasis during use；Also or it is various on-line monitoring product standard differs, pattern differs, can not unify.So
The domestic on-line monitoring system (i.e. fault diagnosis system) currently for transformer is also in scattered monitoring and diagnostic phases, and one
Individual system corresponds to a kind of equipment, and each system is separate, and does not have any information exchange with computer supervisory control system, is one
Each and every one information island.Although some producers start progressively to carry out on-line monitoring comprehensive diagnos work, due to being related to technology
Standard is numerous, the reasons such as user's request is indefinite and have difficulty in taking a step, What is more in order to deliberately manufacture the concept of comprehensive monitoring and
The super large cabinet of each on-line monitoring product of a fusion has been found on the spot, is caused people and is thought that comprehensive on-line monitoring apparatus is stupid
Heavy and redundancy present situation, more make it that the popularization of comprehensive on-line monitoring is extremely difficult.
The content of the invention
Goal of the invention：For as above problem, the present invention provides a kind of history data for combining each monitoring point, examination
Test the information such as data, on-line real time monitoring data and comprehensive diagnos, further perfect transformer fault diagnosis energy are carried out to equipment
Power, the accuracy of equipment fault diagnosis is improved, simple in construction, easy for installation, integrated level is high, the transformer wall built-up of comprehensive diagnos
Formula comprehensive on-line monitoring apparatus.
Technical scheme：The present invention provides a kind of transformer wall-hanging comprehensive on-line monitoring apparatus, including shell, in shell
Portion is provided with host CPU plate, and host CPU front edge of board is provided with LCDs, and line oil film key is provided with LCDs,
Host CPU plate is fixedly installed on casing inner bag, and casing inner bag is fixedly installed on flange, and casing inner bag rear portion is provided with cable
Seal nipple, the host CPU plate include micro- water detection module, oil dissolved gas detection module and optical fiber winding temperature detection module；
The oil dissolved gas detection module is fixedly installed on flange, and micro- water detection module is arranged on oil dissolved gas detection module and method
Between orchid；
Host CPU plate：Gas content parameter, the optical fiber winding temperature that oil dissolved gas detection module transmits are included by collection
Micro-water content parameter, transformer top in the optical fiber winding temperature parameter of detection module transmission, the oil of micro- water detection module transmission
With bottom oil temperature, transformer online monitoring parameter, unified COMPREHENSIVE CALCULATING is analyzed in showing diagnostic result on liquid crystal, and can be more
Kind on communication modes by delivering to aggregate background software or integrated system, DCS, SIS system；
Micro- water detection module：By micro-water content in measuring transformer oil and water activity, and measurement data is sent to master
CPU board；
Oil dissolved gas detection module：Host CPU plate is sent to by measuring transformer gas content, and by measurement data；
Optical fiber winding temperature detection module：, will be pre- using fluorescence optical fiber metering system by collecting Transformer Winding temperature
The optical fiber winding temperature that the winding optical fiber temperature-measurement signal acquisition buried obtains, and measurement data is sent to host CPU plate.
Further, the host CPU plate end set has external wiring terminal, and the external wiring terminal and cable are close
Sealing joint connects.
Further, the transformer top and bottom oil temperature are gathered by the PT100 sample circuits on host CPU plate
Arrive.
Further, the transformer iron core grounding current is collected by the 4-20mA circuits on host CPU plate.
Further, other on-line monitoring parameters of the transformer can be visited by external required effective Hidden fault
Sensor is surveyed, is accessed by the communication access way such as multichannel RS23 reserved on host CPU plate, 485, Ethernet.
Further, power supply, detection circuit and Acquisition Circuit are provided with the host CPU plate.
Further, the case nose is provided with transparent organic glass, and being provided with photoelectricity below transparent organic glass opens
Close.
Further, the oil dissolved gas detection module includes the gentle body detection part in membrane degassing part.
Beneficial effect：The present invention is reasonable in design, compact-sized, and function concentration degree is high, concentrates comprehensive on-line monitoring apparatus
In in the casing of very little, using wall-hanging scheme, it is not necessary to which large-scale rack is stood on by transformer.It collects including oil dissolved gas
Monitoring, hot spot monitoring, W/O content detection, iron core grounding current detection and other expansible effective Hidden faults
Detection sensor, in-site comprehensive analysis and diagnosis, most quickly, are most comprehensively diagnosed to be suspicious initial failure, diagnosis it is accurate
Property high, fast response time.
Brief description of the drawings
Fig. 1 is the external structure schematic diagram of the present invention；
Fig. 2 is the internal structure schematic diagram of the present invention；
Fig. 3 is the top view of the present invention.
1st, shell, 2, transparent organic glass, 3, optoelectronic switch, 4, casing inner bag, 5, LCDs, 6, line oil film
Button, 7, cable sealed joint, 8, binding post, 9, flange, 10, micro- water detection module, 11, oil dissolved gas detection module,
12nd, optical fiber winding temperature detection module, 13, host CPU plate.
Embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the reality
Apply example.
It is as shown in Figure 1, 2, 3, simple in construction the invention provides a kind of transformer wall-hanging comprehensive on-line monitoring apparatus,
Good appearance.The device can be directly hung on transformer flange, be not take up space, can be monitored with the very first time, primary scene
The on-line monitoring parameter such as micro-water content, iron core grounding current, optical fiber winding temperature, comprehensive in gas content in transformer oil, oil
The information such as the history data of each monitoring point, test data, on-line real time monitoring data equipment is carried out comprehensive analysis and
Diagnosis, other on-line monitoring parameters can also be extended.Therefore the device has, accuracy strong to transformer fault diagnosis ability
The advantages of high, analysis and diagnosis to Transformer Operation Status can be locally being realized, explain suspicious initial failure, estimate
Transformer life.
As shown in figure 1, whole device is sealed in unified shell 1, the front end of shell 1 is equipped with transparent organic glass 2 and photoelectricity
Switch 3.The measurement data and result shown in the observation device of transparent organic glass 2 on LCDs 5 can be passed through.Photoelectricity
Switch 3 is used for the position for sensing people, controls the switch of LCDs 5：When optoelectronic switch 3 has sensed that personnel are in device
In the range of 1 meter of front end, LCDs 5 is lighted；Conversely, then closing, which can be effectively increased making for LCDs
Use the life-span.Whole device size is compact, only has 280*270*310mm containing flange 9, installation is simply, conveniently.
It is the structure of device Inner enclosure inner bag 4 as shown in Figure 2,3, LCDs 5 is with line oil film key 6 positioned at just
Front, for operating whole device.Wherein line oil film key 6 can set coherent detection parameter before dispatching from the factory, and can also show
Field is set.Host CPU plate 13 is located at the rear portion of LCDs 5, is fixed on casing inner bag 4, and reserves external wiring terminal 8, should
All wiring can be drawn by the cable sealed joint 7 of the rearmost of casing inner bag 4 on terminal, so as to not influence entirely to fill
The degree of protection put.There are three big detection modules after host CPU plate 13, be micro- water detection module 10, oil dissolved gas detection module respectively
11 and optical fiber winding temperature detection module 12.Optical fiber winding temperature detection module 12 can gather Transformer Winding temperature
Fiber-optic signal, using fluorescence fiber temperature measurement principle：There are a micro semiconductor and dielectric specular reflection film in probe tip,
Incident light returns controller by minitype gallium arsenide semiconductor through film reflector.Because gallium arsenide semiconductor is inhaled at different temperatures
The number of photons of receipts is different and causes the wavelength of incidence wave and back wave to produce change, and there is spy for temperature and wavelength change
Fixed functional relation, temperature value can accurately be just calculated using specific signal analysis algorithm.Because signal analysis calculates not
Depending on light signal strength, the wavelength of light wave is depended primarily on, therefore can be compatible with major optical fiber temperature-measurement producer.Optical fiber around
The data of detection and analysis and result are uploaded to host CPU plate 13 and other detection data comprehensive analysis by group temperature detecting module 12.
Oil dissolved gas detection module 11 is directly mounted on oil tank of transformer by flange 9 using the scheme of wall-hanging flange 9, is utilized film
Degassing principle and sensor array mode detect the failure gas in transformer oil, and diagnostic result is uploaded into host CPU plate 13
With other detection data comprehensive analysis.Micro- water detection module 10 will be popped one's head in straight by the flange 9 on oil tank of transformer
Connect and stretch into transformer oil, detect water content and water activity in transformer oil, and diagnostic result will be uploaded to host CPU plate
13 detect data comprehensive analysis with other.
Host CPU plate 13 including micro- water detection module 10, oil dissolved gas detection module 11 and optical fiber winding temperature except examining
Survey beyond module 12, have also been devised the power supply ± 15V and detection circuit 4-20mA of iron core grounding current on-Line Monitor Device, use
In the data of on-line monitoring transformer iron core grounding current.Two-way PT100 Acquisition Circuits are also provided with simultaneously, are become for gathering
Depressor top oil and the signal of bottom oil temperature.Finally, the passage of 4 tunnel 485, the interface of 1 tunnel 232 have also been reserved, 1 road Ethernet connects
Mouthful, it can extend and access the signal that other effective Hidden fault detection sensors are sent out.Host CPU plate 13 is all by gathering
The transformer online monitoring fault-signal, the history data of package, test data, online monitoring data and its
The information such as correlation carry out comprehensive diagnostic to transformer, can further improve the diagnosis capability of transformer fault, raising pair
The accuracy that transformer fault judges.Most diagnostic result is shown on LCDs 5 at last, and by host CPU plate 13 after
Electrical apparatus interface carries out warning output, also or by any communication modes of host CPU plate 13 accesses aggregate background software or comprehensive from being
System, DCS, SIS system etc..
Embodiments of the invention is the foregoing is only, is not intended to limit the invention.All principles in the present invention
Within, the equivalent substitution made should be included in the scope of the protection.The content that the present invention is not elaborated
Belong to prior art known to this professional domain technical staff.
Claims (8)
1. a kind of transformer wall-hanging comprehensive on-line monitoring apparatus, including shell, it is characterised in that：Enclosure is provided with master
CPU board, host CPU front edge of board are provided with LCDs, and line oil film key is provided with LCDs, and host CPU plate is fixed
It is arranged on casing inner bag, casing inner bag is fixedly installed on flange, and casing inner bag rear portion is provided with cable sealed joint, described
Host CPU plate includes micro- water detection module, oil dissolved gas detection module and optical fiber winding temperature detection module；The oil dissolved gas inspection
Survey module to be fixedly installed on flange, micro- water detection module is arranged between oil dissolved gas detection module and flange；
Host CPU plate：Gas content parameter, the optical fiber winding temperature detection mould that oil dissolved gas detection module transmits are included by collection
Micro-water content parameter, transformer top and bottom in the optical fiber winding temperature parameter of block transmission, the oil of micro- water detection module transmission
Oil temperature, transformer online monitoring parameter, unified COMPREHENSIVE CALCULATING are analyzed in showing diagnostic result on liquid crystal, and can be with a variety of by logical
Aggregate background software or integrated system, DCS, SIS system are delivered in news mode；
Micro- water detection module：By micro-water content in measuring transformer oil and water activity, and measurement data is sent to host CPU
Plate；
Oil dissolved gas detection module：Host CPU plate is sent to by measuring transformer gas content, and by measurement data；
Optical fiber winding temperature detection module：, will be pre-buried good using fluorescence optical fiber metering system by collecting Transformer Winding temperature
The optical fiber winding temperature that winding optical fiber temperature-measurement signal acquisition obtains, and measurement data is sent to host CPU plate.
A kind of 2. transformer wall-hanging comprehensive on-line monitoring apparatus according to claim 1, it is characterised in that：The master
CPU board end set has external wiring terminal, and the external wiring terminal is connected with cable sealed joint.
A kind of 3. transformer wall-hanging comprehensive on-line monitoring apparatus according to claim 1, it is characterised in that：The transformation
Oil temperature is collected by the PT100 sample circuits on host CPU plate at the top and bottom of device.
A kind of 4. transformer wall-hanging comprehensive on-line monitoring apparatus according to claim 1, it is characterised in that：The transformation
Device iron core grounding current is collected by the 4-20mA circuits on host CPU plate.
A kind of 5. transformer wall-hanging comprehensive on-line monitoring apparatus according to claim 1, it is characterised in that：The transformation
Other on-line monitoring parameters of device can be by external required effective Hidden fault detection sensor, by being reserved on host CPU plate
Multichannel RS23,485, the communication access way access such as Ethernet.
A kind of 6. transformer wall-hanging comprehensive on-line monitoring apparatus according to claim 1, it is characterised in that：The master
Power supply, detection circuit and Acquisition Circuit are provided with CPU board.
A kind of 7. transformer wall-hanging comprehensive on-line monitoring apparatus according to claim 1, it is characterised in that：The shell
Front end is provided with transparent organic glass, and optoelectronic switch is provided with below transparent organic glass.
A kind of 8. transformer wall-hanging comprehensive on-line monitoring apparatus according to claim 1, it is characterised in that：In the oil
Gas detection module includes the gentle body detection part in membrane degassing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951656.5A CN107764325A (en) | 2017-10-13 | 2017-10-13 | A kind of transformer wall-hanging comprehensive on-line monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951656.5A CN107764325A (en) | 2017-10-13 | 2017-10-13 | A kind of transformer wall-hanging comprehensive on-line monitoring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764325A true CN107764325A (en) | 2018-03-06 |
Family
ID=61268152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710951656.5A Pending CN107764325A (en) | 2017-10-13 | 2017-10-13 | A kind of transformer wall-hanging comprehensive on-line monitoring apparatus |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310596A (en) * | 2021-05-26 | 2021-08-27 | 南京力通达电气技术有限公司 | System and method for monitoring gas and temperature in transformer oil based on pure optical fiber sensing |
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|---|---|---|---|---|
| CN102636289A (en) * | 2012-04-26 | 2012-08-15 | 江苏骏龙电力科技股份有限公司 | Transformer winding temperature measuring device based on fluorescent fiber technique |
| CN103199621A (en) * | 2013-03-07 | 2013-07-10 | 安徽省电力公司芜湖供电公司 | On-line monitoring networking of power transformer of intelligent substation |
| CN203490023U (en) * | 2013-10-15 | 2014-03-19 | 陕西省地方电力（集团）有限公司 | Transformer oil pressure monitoring system |
| CN204030728U (en) * | 2014-08-27 | 2014-12-17 | 河北北恒电气科技有限公司 | Box type transformer supervising device |
| CN104362736A (en) * | 2014-09-17 | 2015-02-18 | 特变电工衡阳变压器有限公司 | Intelligent component cabinet and monitoring method for intelligent transformer |
| CN105699753A (en) * | 2016-03-29 | 2016-06-22 | 国网上海市电力公司 | Online monitoring device for grounding current of transformer core |
| CN205749513U (en) * | 2016-06-08 | 2016-11-30 | 三峡大学 | A kind of transformer insulation oil on-line monitoring system based on PIC single chip microcomputer |
| CN206470269U (en) * | 2016-12-28 | 2017-09-05 | 深圳市普晟传感技术有限公司 | A kind of on-Line Monitor Device for transformer |
-
2017
- 2017-10-13 CN CN201710951656.5A patent/CN107764325A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636289A (en) * | 2012-04-26 | 2012-08-15 | 江苏骏龙电力科技股份有限公司 | Transformer winding temperature measuring device based on fluorescent fiber technique |
| CN103199621A (en) * | 2013-03-07 | 2013-07-10 | 安徽省电力公司芜湖供电公司 | On-line monitoring networking of power transformer of intelligent substation |
| CN203490023U (en) * | 2013-10-15 | 2014-03-19 | 陕西省地方电力（集团）有限公司 | Transformer oil pressure monitoring system |
| CN204030728U (en) * | 2014-08-27 | 2014-12-17 | 河北北恒电气科技有限公司 | Box type transformer supervising device |
| CN104362736A (en) * | 2014-09-17 | 2015-02-18 | 特变电工衡阳变压器有限公司 | Intelligent component cabinet and monitoring method for intelligent transformer |
| CN105699753A (en) * | 2016-03-29 | 2016-06-22 | 国网上海市电力公司 | Online monitoring device for grounding current of transformer core |
| CN205749513U (en) * | 2016-06-08 | 2016-11-30 | 三峡大学 | A kind of transformer insulation oil on-line monitoring system based on PIC single chip microcomputer |
| CN206470269U (en) * | 2016-12-28 | 2017-09-05 | 深圳市普晟传感技术有限公司 | A kind of on-Line Monitor Device for transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310596A (en) * | 2021-05-26 | 2021-08-27 | 南京力通达电气技术有限公司 | System and method for monitoring gas and temperature in transformer oil based on pure optical fiber sensing |
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Application publication date: 20180306 |