CN108802553A - A kind of transformer winding fault state system of condition monitoring - Google Patents
A kind of transformer winding fault state system of condition monitoring Download PDFInfo
- Publication number
- CN108802553A CN108802553A CN201810604063.6A CN201810604063A CN108802553A CN 108802553 A CN108802553 A CN 108802553A CN 201810604063 A CN201810604063 A CN 201810604063A CN 108802553 A CN108802553 A CN 108802553A
- Authority
- CN
- China
- Prior art keywords
- transformer
- signal
- unit
- data
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/62—Testing of transformers
-
- 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 present invention provides a kind of transformer winding fault state system of condition monitoring, wherein：Data acquisition unit acquires transformer body tank wall vibration signal, three-phase voltage and three-phase current signal according to the operation characteristic of power transformer；Data processing unit, transformer body tank wall vibration signal, three-phase voltage and the three-phase current signal for receiving data acquisition unit acquisition are transmitted to server unit by being handled in real time these signals after converting analog signals into digital signal；Server unit receives, records and feed back the vibration acceleration, electric current and the voltage data that are passed to by data processing unit, and judges transformer fault type by these data, and these data are transmitted to monitoring unit；Monitoring unit shows the visualization of the reception of server unit, the data of record and transformer fault type.Transformer winding fault state vibration monitoring can be carried out using the present invention, manual inspection cost can be reduced and improves transformer station high-voltage side bus safety.
Description
Technical field
The present invention relates to power system transformer technical fields, and in particular, to a kind of transformer winding fault state is shaken
Dynamic on-line monitoring system.
Background technology
Power transformer is as electric system upstream key equipment, the weight for carry voltage transformation, electric energy distribution and transmitting
Task is wanted, is power system security, reliable, high-quality, economical operation important guarantee.Although the quality of production of transformer constantly carries
Height, but since transformer longtime running, failure and accident can not possibly avoid completely.
The failure of transformer is broadly divided into internal fault and external fault.External fault is oil tank of transformer, insulating sleeve
And its cooling equipment damage, fuel tank poor sealing lead to oil leak outside the various failures occurred on lead-out wire, including transformer, cover
Pipe fracture etc..And power transformer interior fault includes mainly then loosening, the deformation of transformer core and winding, winding and iron core mistake
Heat, insulation ag(e)ing, shelf depreciation etc..In numerous fault types, internal fault occurrence probability is higher and to the safety of transformer
Influence on system operation is big.It is counted according to international bulk power grid working group, in large-scale power transformer failure, 26.6% failure belongs to winding event
Barrier.And 53% in winding failure belongs to mechanical breakdown, 31% belongs to electric fault.
Carry out effectively monitoring to the real-time status of power equipment is to assess its operating status, discovery and discriminating device failure
To the important evidence that power equipment is rationally overhauled, and ensure the precondition that power equipment works normally for a long time, because
This has and its important practical engineering value.
Through retrieval, Chinese invention patent：Transformer's Condition Monitoring and fault diagnosis system, application number：
201710328742.0, the system comprises transformer, sensor group, embedded signal acquisition module, on-line monitorings for the patent
With diagnosis unit, WEB server unit etc..The invention is existed using characteristic gas sensor detection Gas in Oil of Transformer solubility
Variation in the ppm orders of magnitude, to realize the analysis and processing of the failures such as transformer distortion.
But above-mentioned patent is not used to transformer winding fault state vibration monitoring, it also can not be to transformer winding fault
Detection more information are provided.
Invention content
For the defects in the prior art, the object of the present invention is to provide a kind of vibration of transformer winding fault state is online
Monitoring system effectively monitors the real-time running data of transformer, can be used in effective failure judgement reason and likelihood of failure portion
Position, breakdown judge is made to the transformer to break down.
Purpose according to the present invention provides a kind of transformer winding fault state system of condition monitoring, including：Data
Collecting unit, data processing unit, server unit and monitoring unit, wherein：
The data acquisition unit, according to the operation characteristic of power transformer, the data volume of acquisition includes transformer body
Tank wall vibration signal, three-phase voltage and three-phase current signal, the vibration signal are by being arranged in transformer A, B and C phase winding
The vibration acceleration sensor of symmetric position obtains on neighbouring tank wall, and the main criterion of vibration signal is vibration signal frequency domain
100Hz component amplitudes and its morphological analysis, will generate alarm signal when more than default threshold value；
The data processing unit, receive data acquisition unit acquisition transformer body tank wall vibration signal, three
Phase voltage and three-phase current signal are passed by being handled in real time these signals after converting analog signals into digital signal
To the server unit；
The server unit receives, records and feeds back the vibration acceleration, the electric current that are passed to by the data processing unit
And voltage data, and judge transformer fault type by these data, and these data are transmitted to the monitoring unit；It is described
Monitoring unit shows the visualization of the reception of the server unit, the data of record and transformer fault type；
The data acquisition unit uses Distributed system design with the server unit, and the data acquisition unit is just
It is closely mounted on transformer tank side, collected vibration signal is sent to service in the form of optical signal using optical fiber data line
Device unit host computer effectively prevents influence of substation's strong electromagnetic interference environment to signal transmission, ensures that host computer can be received
To high-precision vibration signal.
Preferably, the data acquisition unit includes current transformer, voltage transformer, acceleration transducer, wherein：Institute
Vibration signal of the acceleration transducer for acquiring transformer winding is stated, is installed on outside transformer-cabinet both sides using magnetic mode
Wall side, the acceleration transducer are respectively arranged in the corresponding babinet both sides of three-phase windings of each transformer, and the babinet
Every side correspond to the top of each phase winding, lower part one acceleration transducer be respectively installed, amount to 12 acceleration transducers, own
Acceleration transducer signals pass through shield cabled data transmission；The voltage transformer, current sensor are installed on power transformation
It stands, is used for three-phase current, the three-phase voltage signal of synchronous acquisition transformer；The current transformer, voltage transformer, acceleration
Sensor output is connected to data processing unit by shielded cable, and the signal of acquisition is output to the data processing list
Member.
Preferably, the data processing unit includes：Electric distribution cabinet and the switch electricity being set in the electric distribution cabinet
Source, dehumidifier, the first signal conditioner, wherein：The Switching Power Supply is powered for the data processing unit, and the dehumidifier is set
It is placed in the side inside the electric distribution cabinet, monitors the humiture in the electric distribution cabinet in real time, and according to preset humiture
Range, in due course automatic dehumidifying ensure the running environment safety of the data processing unit；The signal conditioner is set to described
Near dehumidifier, the vibration of three-phase current, three-phase voltage signal and 12 points for acquiring the data acquisition device
The analog signals of signal are converted to digital signal, are then transmitted through the optical fiber to the server.
Preferably, the data processing unit is mounted on beside transformer on the spot.
Preferably, the dehumidifier connects humidity sensor, the display lamp of the humidity sensor connection different colours.
Preferably, the server unit includes：Main control unit, second signal conditioner, wherein：Second signal conditioner
It is connected with the data processing unit with optical fiber, each second signal conditioner can be with multiple data processing units
Connection, realizes the centralized and unified of data, realizes the monitoring of one master and multiple slaves；
The main control unit is connect with the second signal conditioner by optical fiber, and whole voltages to obtaining, electric current,
Vibration signal is stored, is analyzed, and to the abnormal vibration found after data analysis, the master controller will produce vibrating alert letter
Number；
The main control unit, has data analysis function, can be divided the vibration received, voltage, current signal
Analysis and compare, by run algorithm, tentatively judged by vibration signal transformer whether failure, thereafter fitting current and voltage signals sentence
The fault type of disconnected transformer, judges transformer fault state as assistant criteria.
Preferably, the monitoring unit connects visualization model, and the visualization model connects the server unit, can
Depending on changing interface display transformer working condition, real-time electric parameter numerical value change and autonomous is understood by clear visual interface
The electric parameter type understood needed for switching, the anomalous variation of electric parameter and the transformer fault of data analysis all can be with bright-coloured
Color and prompt form are prompted, and the algorithm upgrading update and other settings of server unit are grasped by visualization interface
It is realized.
Preferably, the server unit is installed in the electrical cubicle of Substation control room.
Preferably, the monitoring unit is installed on outside the electrical cubicle of Substation control room.
Preferably, the current transformer, voltage transformer, vibration acceleration sensor are multiple, they are can
Manually adjust the sensor of setting and the reset of threshold value.
Preferably, the second signal conditioner, is made of embedded module and FPGA module, is responsible for unified each number of reception
Voltage, electric current, the vibration signal uploaded according to processing unit, and it is uploaded to through internal optical fiber in main control unit.Described second
Distributed, one-to-many, master-slave mode acquisition and monitoring may be implemented in signal conditioner.
Compared with prior art, the present invention has following advantageous effect：
The above-mentioned monitoring system of the present invention, can effectively monitor the real-time operating conditions of transformer, solve offline inspection
Means are periodically long, the drawbacks of can not monitoring in real time.
The monitoring data that the above-mentioned monitoring system of the present invention obtains, can be used in effective failure judgement reason and failure may
Property position, breakdown judge is made to the transformer to break down.
Transformer winding fault state vibration monitoring is carried out using the above-mentioned monitoring system of the present invention, can reduce and manually patrol
It examines cost and improves transformer station high-voltage side bus safety.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the system construction drawing of one embodiment of the invention；
Fig. 2 is the electric distribution cabinet structural schematic diagram of data processing unit in a preferred embodiment of the invention；
Fig. 3 is the Switching Power Supply wiring diagram of data processing unit in a preferred embodiment of the invention；
Fig. 4 a, 4b are server electrical installation drawing in a preferred embodiment of the invention；
Fig. 5 is data acquisition device and main control unit connection figure in a preferred embodiment of the invention；
In figure：Data acquisition unit 1, current transformer 101, voltage transformer 102, vibration acceleration sensor 103, light
Fine or cable 104, data processing unit 2, electric distribution cabinet 201, Switching Power Supply 202, dehumidifier 203, the first signal conditioner
204, server unit 3, main control unit 301, second signal conditioner 302, monitoring unit 4.
Specific implementation mode
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Shown in referring to Fig.1, an embodiment of transformer winding fault state system of condition monitoring provided by the invention
Structure chart, including：Data acquisition unit 1, data processing unit 2, server unit 3 and monitoring unit 4, wherein：
The data acquisition unit 1, according to the operation characteristic of power transformer, the data volume of acquisition includes transformer body
Tank wall vibration signal, three-phase voltage and three-phase current signal, the vibration signal are by being arranged in transformer A, B and C phase winding
The vibration acceleration sensor of symmetric position obtains on neighbouring tank wall, and alarm letter will be generated when more than default threshold value
Number；
The data processing unit 2, receive the data acquisition unit 1 acquisition transformer body tank wall vibration signal,
Three-phase voltage and three-phase current signal, by being handled in real time these signals, after converting analog signals into digital signal
It is transmitted to the server unit 3；
The server unit 3 receives, record and feedback are by the incoming vibration acceleration of the data processing unit 2, electricity
Stream and voltage data, and judge transformer fault type by these data, and these data are transmitted to the monitoring unit 4；
The monitoring unit 4, the reception of the server unit 3, the data of record and transformer fault type is visual
Change is shown；
The data acquisition unit 1 uses Distributed system design, the data acquisition unit with the server unit 3
It is mounted on transformer tank side nearby, collected vibration signal is sent to clothes in the form of optical signal using optical fiber data line
Business device unit host computer, effectively prevents influence of substation's strong electromagnetic interference environment to signal transmission, ensures that host computer can
Receive high-precision vibration signal.
According to experimental analysis, winding is transformer vibration main source with iron core, and vibration signal is also the on-line monitoring
The core of system.Running transformer fe in-core, silicon steel sheet generates magnetostriction under high-intensity magnetic field leads to the vibration of iron core,
When transformer normal operation iron core unsaturation, the amplitude of core vibration and square directly proportional, the fundamental vibration frequency of excitation voltage negative value
For 100Hz, can be differentiated according to it iron core make moist, the failures such as insulation damages.The vibration of transformer winding is incuded by load current
Caused by the electromagnetic force of generation, amplitude is directly proportional to winding current negative value square, frequency 100Hz, can be according to its differentiation
Winding deformation failure.In practical substation, the vibration signal of on-line monitoring system is by being arranged in transformer A, B and C phase winding
The vibration acceleration sensor of symmetric position obtains on neighbouring tank wall, and running transformer vibration is core vibration and winding
The superposition of vibration, in addition to fundamental frequency signal other than, further comprise by non-linear caused a large amount of higher hamonic waves.Occur in transformer
When failure, the 100Hz component variations of vibration signal are apparent, and will also reflect transformer for the morphological analysis of vibration signal
The variation of operating status, therefore, the main criterion of vibration signal is vibration signal frequency domain 100Hz component amplitudes and its form credit
Analysis when these indexs are more than default threshold value as a result, will generate alarm signal.
It is N in the number of turns it is assumed that when transformer normal operation1Transformer primary avris apply alternating voltage u1=V0sinω
T, it is φ that the main flux of alternation is encouraged on the iron core that cross-sectional area is A, according to Faraday's electromagnetic induction law, can acquire iron core
In magnetic induction intensity be：
In formula,BsFor saturation induction density.
It can thus be concluded that the magnetic field intensity H of iron core,
In formula, μ is the magnetic conductivity of iron core, HcFor coercivity.
Under magnetic fields, the micro-strain amount of silicon steel sheet meets formula,
In formula, εsFor the saturation magnetostriction rate of silicon steel sheet, and H≤Hc。
The magneto-striction phenomenon of iron core is usually indicated with magnetostrictivity ε, and the mangneto of silicon steel sheet can be obtained to formula (3) integral
Expansion and contraction ε,
In formula, L is the original size of iron core silicon-steel sheet, and Δ L is the maximum deformation quantity of iron core silicon-steel sheet, B0≤B。
Can obtain magnetostriction by formula (4) causes the vibration acceleration of core vibration to be
By formula (5) it is found that the core vibration acceleration signal caused by magnetostriction and original edge voltage value square are in line
Sexual intercourse, and the fundamental frequency of core vibration acceleration signal is twice of excitation voltage fundamental frequency.In addition, because iron core is magnetostrictive non-
It is linear and along the reasons such as iron core inside casing and the magnetic flux path length difference of outline border, core vibration frequency spectrum other than fundamental frequency, also
It include higher harmonic component.
Simultaneously as square of the amplitude direct ratio and voltage of transformer core vibration, to transformer real time execution voltage
Monitoring can help to differentiate iron coring vibration situation, the subsidiary discriminant of transformer fault in can be used for running, therefore on-line monitoring system
Three-phase operation voltage signal is acquired using voltage transformer.
Similarly, since the amplitude direct ratio of transformer winding vibration and square of load current, to transformer real time load electricity
The monitoring of stream can help to differentiate basket vibration intensity, therefore on-line monitoring system acquires three-phase operation respectively using current transformer
Current signal.
Therefore, the present invention is according to the operation characteristic of power transformer, acquisition transformer body tank wall vibration signal, three-phase electricity
Pressure and three-phase current signal, these original signals are believed the alarm for generating transformer working condition by the data processing of system
Number, and uploaded by way of report.
In certain preferred embodiments of the present invention, the data acquisition unit 1, including current transformer 101, voltage are mutual
Sensor 102, vibration acceleration sensor 103, wherein：The vibration acceleration sensor 103 is installed on change using magnetic mode
Depressor babinet both sides outer wall, babinet just, back of the body both sides, 6 acceleration transducers are respectively installed, each acceleration transducer difference
The top and lower part of the corresponding box location of three-phase windings is installed, the vibration signal of acquisition is by private mask armored cable into line number
According to transmission；The current transformer 101, voltage transformer 102 are installed on substation；The current transformer 101, mutual induction of voltage
The input terminal of device 102 acquires the three-phase current of transformer, three-phase voltage signal respectively；The current transformer 101, mutual induction of voltage
Device 102, acceleration transducer 103 output end data processing unit 2 is connected to by private mask signal cable.
In certain preferred embodiments of the present invention：The data processing unit 2 is mounted on beside transformer on the spot, described
Server unit 3 is installed in the electrical cubicle of Substation control room；It is electrical that the monitoring unit 4 is installed on Substation control room
Shield outside cabinet, connects the server unit 3, and be equipped with display device, the signal transmission that the transmission of server unit 3 is come to display
Device is shown.In one embodiment, 18 sensor interfaces are arranged in data processing unit.
In section Example of the present invention, the vibration acceleration sensor 103 by mass block, damper, elastic element,
Sensing element forms.Vibration acceleration sensor 103 passes through the measurement to inertia force suffered by mass block, profit in accelerator
Acceleration value is obtained with Newton's second law.When working normally and breaking down, vibration characteristics can change transformer,
By installing vibration acceleration sensor additional on transformer box wall, the tank wall acceleration information under transformer operating mode can be measured,
Carry out the preliminary working condition for judging transformer with this.Vibration acceleration sensor 103 is placed in transformer box wall by magnetic mode
Outside, easy for installation and easy to disassemble and repair.
In one embodiment, the AC102-2C types vibration of CTC companies may be used in the vibration acceleration sensor
Acceleration transducer, specific parameter are as follows：
With reference to shown in Fig. 2, the data processing unit 2 includes：It electric distribution cabinet 201 and is set in the electric distribution cabinet
Switching Power Supply 202, dehumidifier 203, the first signal conditioner 204, wherein：The Switching Power Supply 202 is the data processing
Unit 2 is powered, and the dehumidifier 203 is set to the side inside the electric distribution cabinet 201, first signal conditioner 204
It is set near the dehumidifier 203.Electric distribution cabinet 201 uses stainless steel cabinet.Data processing unit 2 is mounted on outside control room
By transformer, the design of stainless steel electrical cabinet meets anti-condensation, high temperature resistant, the protection working condition requirement such as ventilation.
Alternating current air switch Q1, current terminal X1, ground terminal PE are also shown in Fig. 2, with reference to shown in Fig. 3, switch electricity
Source 202 is the circuit diagram of the connections such as U1, dehumidifier 203 i.e. CSQ.The dehumidifier connects humidity sensor, the humidity sensor
Device monitors the humidity in electric distribution cabinet in real time, and by the display lamp of connection, is converted to visual red, yellow, black three kinds of colors
Light, prompt humidity level, when 201 interior humidity of electric distribution cabinet is more than setting value, the dehumidifier is switched on work, ensures
Electric box cabinet humidity meets electric components operating condition.
Switching Power Supply U1 shown in figure is powered for data processing unit using 220VAC/24VDC, electric 220VAC is taken to take
Electrical cabinet from transformer in-situ side.Switching Power Supply is for the power supply to data processing unit.
First signal conditioner 204 may be used existing device and realize, for example is made of embedded module and FPGA device
Deng main function is to receive the digital signal of each sensor on the spot, and is converted into analog signal, is finally uploaded to clothes
Business device unit avoids the distortion due to causing signal when long distance transmission and inaccuracy so as to timely processing signal.
As shown in Fig. 4 a, 4b, the server unit 3 includes：It main control unit 301 and is set in same electrical cubicle
Second signal conditioner 302, wherein：
The main control unit (MCU), the vibration signal uploaded by the data processing unit, while receiving same electrical
Shield cabinet in the second signal conditioner transmission Circuit Fault on Secondary Transformer electric current, voltage signal, by receive vibrate, electricity
Pressure, current signal analyzed and compared, by run algorithm, tentatively judged by vibration signal transformer whether failure, thereafter
Fitting current and voltage signals judge the fault type of transformer, judge transformer fault state as assistant criteria.
The monitoring unit connects visualization model, and the visualization model connects the main control unit of the server unit
301, visualization interface shows transformer working condition, understands real-time electric parameter numerical value change by clear visual interface
With the electric parameter type understood needed for autonomous switching, the anomalous variation of electric parameter and the transformer fault of data analysis all can
It is prompted in the form of bright-colored and prompt, the algorithm upgrading update of server unit and other settings pass through visualization
Interface operation is realized.
As shown in figure 5, main control unit 301 is the core component of a whole set of transformer online monitoring, and in figure, main control unit 301
The sensor signal uploaded in multiple data processing units 2 is received by armored fiber optic, while same by the reception of cabinet inner fiber
The Circuit Fault on Secondary Transformer current and voltage signals that second signal conditioner 302 in electrical cubicle uploads.
The above-mentioned monitoring system of the present invention, composite measurement vibration signal, electric current and voltage data reduce False Rate, can
The effectively real-time operating conditions of monitoring transformer solve offline inspection means periodically length, the drawbacks of can not monitoring in real time, energy
It enough reduces manual inspection cost and improves transformer station high-voltage side bus safety.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (10)
1. a kind of transformer winding fault state system of condition monitoring, which is characterized in that including：Data acquisition unit, number
According to processing unit, server unit and monitoring unit, wherein：
The data acquisition unit, according to the operation characteristic of power transformer, the data volume of acquisition includes transformer body tank wall
Vibration signal, three-phase voltage and three-phase current signal, the vibration signal are by being arranged near transformer A, B and C phase winding
The vibration acceleration sensor of symmetric position obtains on tank wall, and the main criterion of vibration signal is vibration signal frequency domain 100Hz
Component amplitude and its morphological analysis, will generate alarm signal when more than default threshold value；
The data processing unit receives transformer body tank wall vibration signal, the three-phase electricity of the data acquisition unit acquisition
Pressure and three-phase current signal are transmitted to institute by being handled in real time these signals after converting analog signals into digital signal
State server unit；
The server unit receives, records and feeds back the vibration acceleration, electric current and the electricity that are passed to by the data processing unit
Data are pressed, and judge transformer fault type by these data, and these data are transmitted to the monitoring unit；The monitoring
Unit shows the visualization of the reception of the server unit, the data of record and transformer fault type；
The data acquisition unit uses Distributed system design, the data acquisition unit to pacify nearby with the server unit
Mounted in transformer tank side, collected vibration signal is sent to server list in the form of optical signal using optical fiber data line
First host computer effectively prevents influence of substation's strong electromagnetic interference environment to signal transmission, ensures that host computer can receive height
The vibration signal of precision.
2. transformer winding fault state system of condition monitoring according to claim 1, which is characterized in that the number
Include current transformer, voltage transformer, acceleration transducer according to collecting unit, wherein：The acceleration transducer is for adopting
The vibration signal for collecting transformer winding, transformer-cabinet both sides outer wall side, the acceleration sensing are installed on using magnetic mode
Device is respectively arranged in the corresponding babinet both sides of three-phase windings of each transformer, and every side of the babinet corresponds to each phase winding
An acceleration transducer is respectively installed in top, lower part, amounts to 12 acceleration transducers, and all acceleration transducer signals pass through
Shield cabled data transmission；The voltage transformer, current sensor are installed on substation, are used for synchronous acquisition transformer
Three-phase current, three-phase voltage signal；The current transformer, voltage transformer, acceleration transducer output end pass through screen
Cable connection is covered to data processing unit, and the signal of acquisition is output to the data processing unit.
3. transformer winding fault state system of condition monitoring according to claim 2, which is characterized in that the electricity
Current transformer, voltage transformer, vibration acceleration sensor are multiple, they are that can manually adjust the setting of threshold value and answer
The sensor of position.
4. transformer winding fault state system of condition monitoring according to claim 1, which is characterized in that the number
Include according to processing unit：Electric distribution cabinet and the Switching Power Supply being set in the electric distribution cabinet, dehumidifier, the first signal condition
Device, wherein：The Switching Power Supply is powered for the data processing unit, and the dehumidifier is set to inside the electric distribution cabinet
Side monitors the humiture in the electric distribution cabinet in real time, and according to preset temperature humidity range, in due course automatic dehumidifying ensures
The running environment safety of the data processing unit；The signal conditioner is set near the dehumidifier, and being used for will be described
The analog signals of the vibration signal of three-phase current, three-phase voltage signal and 12 points that data acquisition device acquires are converted to
Then digital signal is transmitted through the optical fiber to the server.
5. transformer winding fault state system of condition monitoring according to claim 4, which is characterized in that the number
According to processing unit, it is mounted on beside transformer on the spot.
6. transformer winding fault state system of condition monitoring according to claim 4, which is characterized in that described to remove
Wet device connects humidity sensor, the display lamp of the humidity sensor connection different colours, by the display lamp of different colours come
Prompt humidity level.
7. transformer winding fault state system of condition monitoring according to claim 1, which is characterized in that the clothes
Business device unit include：Main control unit, second signal conditioner, wherein：Second signal conditioner is with optical fiber with the data processing
Unit connects, and each second signal conditioner can be connect with multiple data processing units, realize the concentration of data
It is unified, realize the monitoring of one master and multiple slaves；
The main control unit is connect with the second signal conditioner by optical fiber, and whole voltages, electric current, vibration to obtaining
Signal is stored, is analyzed, and to the abnormal vibration found after data analysis, the master controller will produce vibrating alert signal；
The main control unit, has data analysis function, the vibration received, voltage, current signal can be carried out analysis and
Compare, by run algorithm, tentatively judged by vibration signal transformer whether failure, thereafter be fitted current and voltage signals judge change
The fault type of depressor judges transformer fault state as assistant criteria.
8. transformer winding fault state system of condition monitoring according to claim 7, which is characterized in that the clothes
Business device unit, is installed in the electrical cubicle of Substation control room.
9. transformer winding fault state system of condition monitoring according to claim 7, which is characterized in that described
Binary signal conditioner, is made of embedded module and FPGA module, the responsible unified voltage for receiving each data processing unit upload,
Electric current, vibration signal, and it is uploaded to through internal optical fiber in main control unit；The second signal conditioner can realize distribution
Formula, one-to-many, master-slave mode acquisition and monitoring.
10. according to claim 1-9 any one of them transformer winding fault state system of condition monitoring, feature exists
In, the monitoring unit is installed on outside the electrical cubicle of Substation control room, and the monitoring unit connects visualization model, it is described can
The server unit is connected depending on changing module, visualization interface shows transformer working condition, passes through clear visual interface
Solve the electric parameter type understood needed for real-time electric parameter numerical value change and autonomous switching, the anomalous variation of electric parameter and
The transformer fault of data analysis can all be prompted in the form of bright-colored and prompt, the algorithm upgrading of server unit
Update and other settings are realized by visualization interface operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810604063.6A CN108802553A (en) | 2018-06-12 | 2018-06-12 | A kind of transformer winding fault state system of condition monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810604063.6A CN108802553A (en) | 2018-06-12 | 2018-06-12 | A kind of transformer winding fault state system of condition monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108802553A true CN108802553A (en) | 2018-11-13 |
Family
ID=64085311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810604063.6A Pending CN108802553A (en) | 2018-06-12 | 2018-06-12 | A kind of transformer winding fault state system of condition monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108802553A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612564A (en) * | 2018-12-29 | 2019-04-12 | 国网上海市电力公司 | Transformer winding state vibration monitoring device in a kind of short-circuit test |
| CN109612565A (en) * | 2018-12-29 | 2019-04-12 | 国网上海市电力公司 | A kind of outdoor installs case cabinet of transformer winding state vibration monitoring |
| CN110763964A (en) * | 2019-11-12 | 2020-02-07 | 保定天威新域科技发展有限公司 | Operating voltage phase triggering wireless device based on transformer vibration |
| CN110926591A (en) * | 2019-12-13 | 2020-03-27 | 福开尔（西安）电气有限公司 | Power transformer state monitoring system |
| CN112304369A (en) * | 2020-10-27 | 2021-02-02 | 中国电力科学研究院有限公司 | Converter transformer multi-state parameter online monitoring system and monitoring method |
| CN112611987A (en) * | 2020-12-09 | 2021-04-06 | 浙江上青元电力科技有限公司 | Transformer voiceprint vibration monitoring system and method based on Internet of things technology |
| CN114152899A (en) * | 2021-12-13 | 2022-03-08 | 国网山东省电力公司淄博供电公司 | Overload operation management and control system for distribution transformer |
| CN114325155A (en) * | 2021-11-19 | 2022-04-12 | 国网湖南省电力有限公司 | Fault detection system for transformer |
| CN115343663A (en) * | 2022-08-12 | 2022-11-15 | 保定天威顺达变压器有限公司 | Transformer winding monitoring device |
| CN115598456A (en) * | 2022-11-29 | 2023-01-13 | 科瑞工业自动化系统（苏州）有限公司（Cn） | Train fault online monitoring method and system |
| CN117132243A (en) * | 2023-10-26 | 2023-11-28 | 华能济南黄台发电有限公司 | Visual power plant equipment monitoring management system |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB692659A (en) * | 1951-03-14 | 1953-06-10 | Electrical & Auto Products 193 | Improvements relating to electrical testing apparatus |
| CN101709995A (en) * | 2009-12-24 | 2010-05-19 | 浙江大学 | Methods for vibration online monitoring and fault diagnosis of power transformer |
| CN202404166U (en) * | 2011-12-04 | 2012-08-29 | 江西省电力科学研究院 | On-line monitoring system for vibration performance of transformer |
| CN102998545A (en) * | 2011-09-16 | 2013-03-27 | 河南电力试验研究院 | Online transformer winding work state monitoring method |
| CN103713217A (en) * | 2013-12-25 | 2014-04-09 | 国家电网公司 | Method for monitoring operating state of power transformer on line under direct-current magnetic bias condition |
| CN203965034U (en) * | 2014-01-15 | 2014-11-26 | 云南电力试验研究院（集团）有限公司电力研究院 | A kind of electrical transformer cores and winding failure on-line monitoring system |
| CN104237705A (en) * | 2014-09-30 | 2014-12-24 | 沈阳工业大学 | Multi-information fusion online monitoring device and diagnostic method for windings of power transformers |
| CN104242069A (en) * | 2014-09-17 | 2014-12-24 | 国家电网公司 | Dehumidification device for electrical cabinet |
| CN204085686U (en) * | 2014-08-29 | 2015-01-07 | 国家电网公司 | Power transformer inside loosens judgement system |
| CN104698354A (en) * | 2015-03-13 | 2015-06-10 | 西安交通大学 | GIL (globalization, internationalization and localization) breakdown discharge positioning detecting system |
| CN105091942A (en) * | 2015-08-14 | 2015-11-25 | 浙江迪野农业装备有限公司 | Bionic lamp for monitoring farmland environment |
| CN205910269U (en) * | 2016-06-29 | 2017-01-25 | 武汉彤科电力科技有限公司 | Distribution transformer running state's monitoring devices |
| CN206777800U (en) * | 2017-06-06 | 2017-12-22 | 银川合宜科技有限公司 | A kind of body motion information acquisition system |
-
2018
- 2018-06-12 CN CN201810604063.6A patent/CN108802553A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB692659A (en) * | 1951-03-14 | 1953-06-10 | Electrical & Auto Products 193 | Improvements relating to electrical testing apparatus |
| CN101709995A (en) * | 2009-12-24 | 2010-05-19 | 浙江大学 | Methods for vibration online monitoring and fault diagnosis of power transformer |
| CN102998545A (en) * | 2011-09-16 | 2013-03-27 | 河南电力试验研究院 | Online transformer winding work state monitoring method |
| CN202404166U (en) * | 2011-12-04 | 2012-08-29 | 江西省电力科学研究院 | On-line monitoring system for vibration performance of transformer |
| CN103713217A (en) * | 2013-12-25 | 2014-04-09 | 国家电网公司 | Method for monitoring operating state of power transformer on line under direct-current magnetic bias condition |
| CN203965034U (en) * | 2014-01-15 | 2014-11-26 | 云南电力试验研究院（集团）有限公司电力研究院 | A kind of electrical transformer cores and winding failure on-line monitoring system |
| CN204085686U (en) * | 2014-08-29 | 2015-01-07 | 国家电网公司 | Power transformer inside loosens judgement system |
| CN104242069A (en) * | 2014-09-17 | 2014-12-24 | 国家电网公司 | Dehumidification device for electrical cabinet |
| CN104237705A (en) * | 2014-09-30 | 2014-12-24 | 沈阳工业大学 | Multi-information fusion online monitoring device and diagnostic method for windings of power transformers |
| CN104698354A (en) * | 2015-03-13 | 2015-06-10 | 西安交通大学 | GIL (globalization, internationalization and localization) breakdown discharge positioning detecting system |
| CN105091942A (en) * | 2015-08-14 | 2015-11-25 | 浙江迪野农业装备有限公司 | Bionic lamp for monitoring farmland environment |
| CN205910269U (en) * | 2016-06-29 | 2017-01-25 | 武汉彤科电力科技有限公司 | Distribution transformer running state's monitoring devices |
| CN206777800U (en) * | 2017-06-06 | 2017-12-22 | 银川合宜科技有限公司 | A kind of body motion information acquisition system |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612564A (en) * | 2018-12-29 | 2019-04-12 | 国网上海市电力公司 | Transformer winding state vibration monitoring device in a kind of short-circuit test |
| CN109612565A (en) * | 2018-12-29 | 2019-04-12 | 国网上海市电力公司 | A kind of outdoor installs case cabinet of transformer winding state vibration monitoring |
| CN110763964A (en) * | 2019-11-12 | 2020-02-07 | 保定天威新域科技发展有限公司 | Operating voltage phase triggering wireless device based on transformer vibration |
| CN110763964B (en) * | 2019-11-12 | 2022-04-12 | 国网新疆电力有限公司乌鲁木齐供电公司 | Operating voltage phase triggering wireless device based on transformer vibration |
| CN110926591A (en) * | 2019-12-13 | 2020-03-27 | 福开尔（西安）电气有限公司 | Power transformer state monitoring system |
| CN112304369A (en) * | 2020-10-27 | 2021-02-02 | 中国电力科学研究院有限公司 | Converter transformer multi-state parameter online monitoring system and monitoring method |
| CN112611987A (en) * | 2020-12-09 | 2021-04-06 | 浙江上青元电力科技有限公司 | Transformer voiceprint vibration monitoring system and method based on Internet of things technology |
| CN114325155A (en) * | 2021-11-19 | 2022-04-12 | 国网湖南省电力有限公司 | Fault detection system for transformer |
| CN114152899A (en) * | 2021-12-13 | 2022-03-08 | 国网山东省电力公司淄博供电公司 | Overload operation management and control system for distribution transformer |
| CN115343663A (en) * | 2022-08-12 | 2022-11-15 | 保定天威顺达变压器有限公司 | Transformer winding monitoring device |
| CN115598456A (en) * | 2022-11-29 | 2023-01-13 | 科瑞工业自动化系统（苏州）有限公司（Cn） | Train fault online monitoring method and system |
| CN117132243A (en) * | 2023-10-26 | 2023-11-28 | 华能济南黄台发电有限公司 | Visual power plant equipment monitoring management system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108802553A (en) | A kind of transformer winding fault state system of condition monitoring | |
| TW201432279A (en) | Method of utilizing vocal features for determining malfunctions of electrical equipment caused by arc discharge, mechanical vibration and abnormal displacement | |
| CN104716741A (en) | Transformer substation remote monitoring system and method | |
| CN104362736A (en) | Intelligent component cabinet and monitoring method for intelligent transformer | |
| CN107222026A (en) | A kind of high-tension switch cabinet monitoring system | |
| CN102255393A (en) | Ground wire hanging anti-error blocking system and method thereof | |
| CN111337773A (en) | Transformer fault remote monitoring system and monitoring method | |
| KR101008956B1 (en) | Monitoring system of substation using color data | |
| CN104092310A (en) | Intelligent power distribution monitoring and energy management systematic background | |
| CN104990629A (en) | Infrared-imaging-and-temperature-measurement-based automatic early warning system for power equipment fault | |
| CN104071715A (en) | Near-to-high-voltage safety prewarning method for construction hoist | |
| KR20120138563A (en) | Management system for distributing board and the method thereof | |
| CN204668817U (en) | Temperature field pressure photoelectric location switch cubicle is pressed in a kind of intelligence | |
| CN102868221A (en) | Intelligent drawer switch cabinet | |
| CN109781266A (en) | A kind of the heating power distribution and overheating warning system of Substation Electric Equipment key position | |
| CN203299264U (en) | Overvoltage on-line monitor system | |
| CN113189525A (en) | Intelligent monitoring terminal and system for transformer | |
| CN107179487B (en) | Switch cabinet partial discharge monitoring device and method | |
| CN105990802A (en) | Intelligent medium-voltage temperature field pressure photoelectric potential measurement switch cabinet | |
| CN104375005A (en) | Networked wind power plant harmonic wave monitoring system and method | |
| CN111693902A (en) | Power transformer running state automatic alarm system | |
| CN208297631U (en) | A kind of transformer winding fault state vibration monitoring device | |
| CN203984091U (en) | High-voltage switch gear infrared thermal imaging on-line monitoring integrated treatment unit | |
| CN208296972U (en) | A kind of transformer winding fault state vibration signal acquisition device | |
| CN205608137U (en) | High pressure tank formula electrical equipment electric spark monitoring and early warning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181113 |
|
| WD01 | Invention patent application deemed withdrawn after publication |