CN108152653A - Transformer fault monitoring device and system - Google Patents
Transformer fault monitoring device and system Download PDFInfo
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- CN108152653A CN108152653A CN201711497999.5A CN201711497999A CN108152653A CN 108152653 A CN108152653 A CN 108152653A CN 201711497999 A CN201711497999 A CN 201711497999A CN 108152653 A CN108152653 A CN 108152653A
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- control chip
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- 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
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- Power Engineering (AREA)
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- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention provides a kind of transformer fault monitoring device and systems, the transformer fault monitoring device includes main control chip and the Partial Discharge Detection module, iron core grounding current detection module, analyzing and diagnosing module and the communication module that are connect respectively with main control chip；Local discharge signal at Partial Discharge Detection module detection inside transformer different location；Iron core grounding current detection module detects the Ground leakage current of transformer core；Main control chip receives and sends the local discharge signal and Leaked Current of Line to Ground flow to analyzing and diagnosing module, and the diagnostic result for returning to local discharge signal, Ground leakage current and analyzing and diagnosing module is packaged, monitoring data is generated, and passes through communication module and the monitoring data is sent to monitor terminal.The on-line real time monitoring to transformer has been achieved, has improved the reliability of monitoring result, has improved the service life of transformer, so as to improve the economy of operation of power networks, has improved user experience.
Description
Technical field
The present invention relates to malfunction monitoring technical field, more particularly, to a kind of transformer fault monitoring device and system.
Background technology
Transformer be electric system most expensive and a most important one piece apparatus and structure is most complicated, failure rate compared with
High equipment, the safe operation of transformer is to ensureing that power supply reliability is of great significance.The failure rate of power transformer is higher,
The safe operation of electric system is not only greatly influenced, but also huge economic damage will be caused to electric power enterprise and power consumer
It loses.
Transformer run actually how long or how many times failure occur need overhaul, there is presently no determining for science
By and unified standard, in order to improve the reliability of Operation of Electric Systems, reduce economic loss caused by failure and accident, Ying Ding
Phase carries out insulation preventive trial to transformer.But conventional preventive trial needs transformer to have a power failure, and on the one hand can influence
To normal power supply, some significant datas cannot be tested when on the other hand having a power failure, and affect the reliability of monitoring result, and periodically
The on-off times of transformer can be increased during maintenance, so as to affect the service life of transformer, greatly reduce operation of power networks
Economy.
Therefore, conventional periodic preventative test method and modernization state-maintenance development trend are incompatible, have prison
Survey result reliability it is low, it is operation of power networks it is less economical, influence user daily electricity consumption the problem of.
Invention content
In view of this, the purpose of the present invention is to provide a kind of transformer fault monitoring device and system, to realize to becoming
The on-line real time monitoring of depressor improves the reliability of monitoring result, improves the service life of transformer, so as to improve operation of power networks
Economy, improve user experience.
In a first aspect, an embodiment of the present invention provides a kind of transformer fault monitoring device, including main control chip, Yi Jifen
The Partial Discharge Detection module that is not connect with the main control chip, iron core grounding current detection module, analyzing and diagnosing module and logical
Believe module；
The Partial Discharge Detection module is used to detecting local discharge signal inside transformer different location, and by institute
It states local discharge signal and is sent to the main control chip；
The iron core grounding current detection module is used to detect the Ground leakage current of transformer core, and by described to floor drain
Electric current is sent to the main control chip；
The main control chip is for receiving and send the local discharge signal and the Leaked Current of Line to Ground flow to the analysis
Diagnostic module；
The analyzing and diagnosing module is used to analyze the local discharge signal of reception and the Ground leakage current
Diagnosis, and diagnostic result is returned to the main control chip；
The main control chip is additionally operable to beat the local discharge signal, the Ground leakage current and the diagnostic result
Packet generates monitoring data, and the monitoring data is sent to monitor terminal by the communication module.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiment of first aspect, wherein, institute
It states Partial Discharge Detection module and includes ultra-high frequency signal sensor, HF current transformer and sonac；
The ultra-high frequency signal sensor is mounted in the operation hand hole or fuel outlet valve of the transformer；The high-frequency current
Mutual inductor is mounted on bottom shielding of bushing, neutral ground line or the folder ground wire of the transformer；The sonac peace
On the fuel tank outer wall of the transformer.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiment of first aspect, wherein, institute
It states iron core grounding current detection module and includes centre path current sensor, the centre path current sensor is mounted on the transformation
On the iron core grounding line of device.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiment of first aspect, wherein, institute
It states transformer fault monitoring device and further includes oil temperature detection module；
The oil temperature detection module is connect with the main control chip, for detecting the temperature of the transformer oil in oil tank of transformer
Angle value, and it is sent to the main control chip.
The third possible embodiment with reference to first aspect, an embodiment of the present invention provides the 4th kind of first aspect
Possible embodiment, wherein, the transformer fault monitoring device further includes micro- water detection module；
Micro- water detection module is connect with the main control chip, is contained for detecting the moisture dissolved in the transformer oil
Amount, and it is sent to the main control chip.
The third possible embodiment with reference to first aspect, an embodiment of the present invention provides the 5th kind of first aspect
Possible embodiment, wherein, the transformer fault monitoring device further includes oil dissolved gas detection module；
The oil dissolved gas detection module is connect with the main control chip, for detecting the gas dissolved in the transformer oil
Body content, and it is sent to the main control chip.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiment of first aspect, wherein, institute
It states transformer fault monitoring device and further includes vibration detection module；
The vibration detection module is connect with the main control chip, for detecting the vibration signal of the transformer, concurrently
It send to the main control chip.
The 6th kind of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 7th kind of first aspect
Possible embodiment, wherein, the vibration detection module includes vibrating sensor, and the vibrating sensor is arranged on the change
The surface of depressor.
With reference to above-mentioned first aspect and its any possible embodiment, an embodiment of the present invention provides first aspects
8th kind of possible embodiment, wherein, the transformer fault monitoring device further includes alarm module；
The alarm module is connect with the main control chip, after receiving the alarm command that the main control chip is sent
It alarms.
Second aspect, the embodiment of the present invention also provides a kind of transformer fault monitoring system, including monitor terminal and such as
Transformer fault monitoring device described in first aspect and its any possible embodiment；
The transformer fault monitoring device is communicated to connect with the monitor terminal.
The embodiment of the present invention brings following advantageous effect：
In the embodiment of the present invention, transformer fault monitoring device includes main control chip and is connect respectively with main control chip
Partial Discharge Detection module, iron core grounding current detection module, analyzing and diagnosing module and communication module；Partial Discharge Detection mould
Block is used to detect the local discharge signal inside transformer different location, and the local discharge signal is sent to master control core
Piece；Iron core grounding current detection module is used to detect the Ground leakage current of transformer core, and the Ground leakage current is sent to
Main control chip；Main control chip is for receiving and send the local discharge signal and Leaked Current of Line to Ground flow to analyzing and diagnosing module；Analysis
Diagnostic module is used to carry out analyzing and diagnosing, and return to diagnostic result to master control to the local discharge signal and Ground leakage current of reception
Chip；Main control chip is additionally operable to local discharge signal, Ground leakage current and diagnostic result being packaged, and generates monitoring data, and lead to
It crosses communication module and the monitoring data is sent to monitor terminal.Transformer fault monitoring device provided in an embodiment of the present invention and it is
System, realizes the on-line real time monitoring to transformer, monitoring personnel can pass through the monitoring of monitor terminal real time inspection transformer
Data, and the diagnostic result in reference monitor data.Have a power failure since on-line real time monitoring does not need to transformer, reduce change
The on-off times of depressor, and normal power supply is not interfered with, so as to improve the service life of transformer and user experience, improve
The economy of operation of power networks；Since the on-line monitoring data that the transformer fault monitoring device measures are more true and reliable, because
This improves the reliability of monitoring result.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
For the above objects, features and advantages of the present invention is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structure diagram of transformer fault monitoring device provided in an embodiment of the present invention；
Fig. 2 is a kind of structure diagram of Partial Discharge Detection module provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of another transformer fault monitoring device provided in an embodiment of the present invention；
Fig. 4 is the structure diagram that a kind of transformer fault provided in an embodiment of the present invention monitors system.
Icon：
101- main control chips；102- Partial Discharge Detection modules；103- iron core grounding current detection modules；104- analyses are examined
Disconnected module；105- communication modules；201- ultra-high frequency signal sensors；202- HF current transformers；203- sonacs；
204- data acquisition units；301- oil temperature detection modules；The micro- water detection modules of 302-；303- oil dissolved gas detection modules；304-
Vibration detection module；305- alarm modules；41- transformer fault monitoring devices；42- monitor terminals.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiment be part of the embodiment of the present invention rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
Conventional preventive trial needs transformer to have a power failure at present, influences whether normally to power；It is a bit important during power failure
Data cannot test, and affect the reliability of monitoring result, and when periodic inspection can increase the on-off times of transformer, so as to influence
The service life of transformer greatly reduces the economy of operation of power networks.Based on this, a kind of change provided in an embodiment of the present invention
Depressor fault monitoring device and system can realize the on-line real time monitoring to transformer, improve the reliability of monitoring result, carry
The service life of high transformer so as to improve the economy of operation of power networks, improves user experience.
For ease of understanding the present embodiment, a kind of transformer fault disclosed in the embodiment of the present invention is monitored first
Device describes in detail.
Embodiment one：
Fig. 1 is a kind of structure diagram of transformer fault monitoring device provided in an embodiment of the present invention, as shown in Figure 1,
Transformer fault monitoring device includes main control chip 101 and the Partial Discharge Detection module being connect respectively with main control chip 101
102nd, iron core grounding current detection module 103, analyzing and diagnosing module 104 and communication module 105.
Partial Discharge Detection module 102 is used to detect the local discharge signal inside transformer different location, and should
Local discharge signal is sent to main control chip 101.Iron core grounding current detection module 103 is used to detect transformer core over the ground
Leakage current, and the Ground leakage current is sent to main control chip 101.Main control chip 101 for receive the local discharge signal and
Ground leakage current, and send them to analyzing and diagnosing module 104.Analyzing and diagnosing module 104 is used for the shelf depreciation to reception
Signal and Ground leakage current carry out analyzing and diagnosing, and return to diagnostic result to main control chip 101.Main control chip 101 be additionally operable to by
Local discharge signal, Ground leakage current and diagnostic result are packaged, and generate monitoring data, and pass through communication module 105 and monitor this
Data are sent to monitor terminal.
Bushing shell for transformer is that inside transformer high and low pressure lead is led to the important component being connect outside fuel tank with power grid,
May be because of the influence of the changes in environmental conditions such as filth, burn into flashover, fever, mechanical force in its longtime running, insulation performance is rapid
Decline, and major defect may be caused, such as do not find and take measures in time, latent defect gradually develops, and may cause insulation
Breakdown and equipment damage.The variation of local discharge signal can reflect the degradation of transformer insulated performance, therefore pass through monitoring
The horizontal and vertical comparison of amount (local discharge signal) can grasp the state of insulation and its variation tendency of bushing shell for transformer.Pass through office
Portion's discharge examination module 102 detects the local discharge signal inside transformer different location, can realize inside transformer office
Put the on-line monitoring of (shelf depreciation), realize and the accurate fixed of transformer partial discharge is mutually positioned, improve partial discharge detection accuracy and
Reliability.
Transformer iron core grounding current is monitored by iron core grounding current detection module 103, can reflect iron core multiple spot in time
The failures such as ground connection, harm caused by operation runs transformer safety when avoiding long after failure.Highly sensitive electric current may be used
The leakage current (Ground leakage current) of sensor acquisition transformer core over the ground, so as to according to leakage current judgement and in advance
Survey the health status of core inductance.In some possible embodiments, 1 centre path current sensor may be used, be installed on
On iron core grounding line, the operation and maintenance of transformer are not influenced after sensor installation.
104 memory of analyzing and diagnosing module contains the evaluation criteria of equipment state, can be according to the evaluation criteria, according to reception
Local discharge signal and Ground leakage current the state of transformer is assessed.The evaluation criteria includes health, good, Asia is good for
Health and danger classes is other and the critical Value Data such as temperature, load, time of setting early warning system.
Main control chip 101 integrates the monitoring data per secondary transmission, and passes through communication module 105 and be sent to monitor terminal.
Main control chip 101 can be common control chip, and the concrete model of main control chip 101 is not limited here.Communication module
105 include WIFI (WIreless-Fidelity, Wireless Fidelity) module, ethernet communication module, GSM (Global System
For Mobile communication, global system for mobile communications) communication module, GPRS (General Packet Radio
Service, general packet radio service technology) communication module and 4G (the 4th Generation mobile
Communication technology, fourth generation mobile communication technology) mould is in the block one or more.Monitor terminal can be
The monitoring room or desktop computer of fixed location, or the moveable electronics such as mobile phone, laptop, tablet computer is set
It is standby.
The on-line real time monitoring to transformer is achieved, monitoring personnel can check current transformation by monitor terminal
The monitoring data of device wraps the diagnostic result in simultaneously reference monitor data.Have a power failure since on-line real time monitoring does not need to transformer, because
This reduces the on-off times of transformer, and does not interfere with normal power supply, so as to improve the service life of transformer and user
Experience Degree improves the economy of operation of power networks；Due to the transformer fault monitoring device measure on-line monitoring data more
It is true and reliable, therefore improve the reliability of monitoring result.
Fig. 2 is a kind of structure diagram of Partial Discharge Detection module provided in an embodiment of the present invention.In view of single at present
One sensor, single method are easily by various live interference effects, it is difficult to the limitation in accurate judgement partial discharge source, as shown in Fig. 2,
Partial Discharge Detection module 102 includes ultra-high frequency signal sensor 201, HF current transformer 202 and sonac 203.
Hyperfrequency (Ultra High Frequency, UHF) signal transducer is mounted on the operation hand hole of transformer or puts
In fuel tap, in some possible embodiments, passed as shown in Fig. 2, Partial Discharge Detection module 102 includes two ultra-high frequency signals
Sensor 201 is separately mounted in operation hand hole and fuel outlet valve.HF current transformer (high frequency current
Transformer, HFCT) on the bottom shielding of bushing of high, middle pressure transformer, neutral ground line or folder ground wire,
In some possible embodiments, as shown in Fig. 2, Partial Discharge Detection module 102 includes three HF current transformers 202, point
Not An Zhuan bottom shielding of bushing, neutral ground line and folder ground wire on.Sonac 203 is mounted on outside the fuel tank of transformer
On wall, in some possible embodiments, using the external ultrasonic sensor of magnetic adsorption type structure, external ultrasonic sensor
Absorption can at any time be installed on fuel tank outer wall under running state of transformer.
It is limited in view of the interface on main control chip 101, in order to improve 102 inner sensor of Partial Discharge Detection module
Scalability, as shown in Fig. 2, Partial Discharge Detection module 102 further includes data acquisition unit 204, data acquisition unit 204
It is connect with main control chip 101.Ultra-high frequency signal sensor 201, HF current transformer 202 and sonac 203 respectively with
Data acquisition unit 204 connects, and after data acquisition unit 204 collects the data of each sensor detection, is uniformly sent to master control
Chip 101.In this way when Partial Discharge Detection module 102 increases the quantity of sensor, main control chip 101 is not interfered with, is sensed
The extended capability of device is strong.
The method being combined using UHF, HFCT, acoustic signals (Acoustic Emission, AE) is realized in transformer
The on-line monitoring of portion's partial discharge, improves antijamming capability and sensitivity, so as to further improve the accuracy of diagnosis and reliable
Property.
Fig. 3 is the structure diagram of another transformer fault monitoring device provided in an embodiment of the present invention.In view of becoming
The speed of the insulation ag(e)ing of depressor is mainly determined that, with the raising of temperature, insulation ag(e)ing rate is faster by temperature, directly affects change
The service life of depressor, as shown in figure 3, on the basis of Fig. 1, above-mentioned transformer fault monitoring device further includes oil temperature detection mould
Block 301.Oil temperature detection module 301 is connect with main control chip 101, for detecting the temperature of the transformer oil in oil tank of transformer
Value, and it is sent to main control chip 101.The oil temperature detection module 301 includes temperature sensor.
In view of the moisture (abbreviation dissolved in transformer oil：Micro- water) be influence one of transformer reliability it is important
Index because the presence of moisture can reduce insulating oil breakdown voltage and increase dielectric loss, accelerate insulating polymeric material
Degradation aging, so as to reduce the properties of insulation system, insulation breakdown and shelf depreciation can be caused when serious, affect change
The safe operation of depressor, as shown in figure 3, above-mentioned transformer fault monitoring device further includes micro- water detection module 302.Micro- water detection
Module 302 is connect with main control chip 101, for detecting the moisture dissolved in transformer oil, and is sent to main control chip
101.Micro- water detection module 302 can be, but not limited to monitor sensor on-line for water micro- in oil.
In view of oily insulating materials can gradual aging and decomposition, generate a small amount of various low molecular hydrocarbon gases, such as hydrogen
Gas, methane, ethane, ethylene etc., therefore measurement oil dissolved gas can preferably react the state of insulation of transformer and failure shape
State.As shown in the figure, above-mentioned transformer fault monitoring device further includes oil dissolved gas detection module 303.Oil dissolved gas detection module
303 connect with main control chip 101, for detecting the gas content dissolved in transformer oil, and are sent to main control chip 101.Oil
Middle gas detection module 303 may be used existing oil dissolved gas detection method and be detected, and which is not described herein again.
Based on Fig. 3, the temperature value of transformer oil, moisture and gas content are sent to point by above-mentioned main control chip 101
Analyse diagnostic module 104；Analyzing and diagnosing module 104 can consider temperature value, moisture and the gas content of transformer oil
Influence to transformer, obtained diagnostic result reliability higher.
The vibration of transformer body is the vibration and cooling device due to transformer body (general designation of iron core and winding etc.)
Vibration generate.The vibration on transformer body surface and the displacement and change of transformer winding and the compression situation, winding of iron core
The situations such as shape are closely related, measured everywhere according to transformer body vibration signal change degree can determine whether out transformer winding or
Whether iron core is defective, and the detection and positioning of transformer defect can be realized by monitoring the abnormal vibration of power transformer on-line.Short
Under the situation of road, transformer body vibration can utilize transformer when short circuit accident occurs mainly as caused by basket vibration
Whether device body vibration signal is deformed or is loosened to monitor winding.Based on this, as shown in figure 3, above-mentioned transformer fault is supervised
It surveys device and further includes vibration detection module 304.Vibration detection module 304 is connect with main control chip 101, for detecting transformer
Vibration signal, and it is sent to main control chip 101.
In some possible embodiments, above-mentioned vibration detection module 304 includes vibrating sensor, vibrating sensor setting
On the surface of transformer.Analyzing and diagnosing module 104 can judge whether transformer winding has occurred according to the vibration signal of detection
Deformation loosens.
Further, as shown in figure 3, above-mentioned transformer fault monitoring device further includes alarm module 305.Alarm module
305 connect with main control chip 101, for receive main control chip 101 transmission alarm command after alarm.Main control chip
101 diagnostic results that can be exported according to analyzing and diagnosing module 104, it is determined whether send alarm command to alarm module 305.It is main
Control chip 101 is additionally operable to when receiving the alarm signal that monitor terminal is sent by communication module 105, to alarm module 305
Send alarm command.Alarm module 305 can be, but not limited to as audible-visual annunciator.It in this way, can be timely by alarm module 305
It notifies the abnormal conditions of staff's timely processing transformer near transformer, prevents from causing further losing.
Embodiment two：
Fig. 4 is the structure diagram that a kind of transformer fault provided in an embodiment of the present invention monitors system, as shown in figure 4,
Transformer fault monitoring system includes monitor terminal 42 and the transformer fault monitoring device 41 such as above-described embodiment one.Become
Depressor fault monitoring device 41 is communicated to connect with monitor terminal 42.
In the embodiment of the present invention, transformer fault monitoring device includes main control chip and is connect respectively with main control chip
Partial Discharge Detection module, iron core grounding current detection module, analyzing and diagnosing module and communication module；Partial Discharge Detection mould
Block is used to detect the local discharge signal inside transformer different location, and the local discharge signal is sent to master control core
Piece；Iron core grounding current detection module is used to detect the Ground leakage current of transformer core, and the Ground leakage current is sent to
Main control chip；Main control chip is for receiving and send the local discharge signal and Leaked Current of Line to Ground flow to analyzing and diagnosing module；Analysis
Diagnostic module is used to carry out analyzing and diagnosing, and return to diagnostic result to master control to the local discharge signal and Ground leakage current of reception
Chip；Main control chip is additionally operable to local discharge signal, Ground leakage current and diagnostic result being packaged, and generates monitoring data, and lead to
It crosses communication module and the monitoring data is sent to monitor terminal.Transformer fault monitoring comprising the transformer fault monitoring device
System, realizes the on-line real time monitoring to transformer, and monitoring personnel can pass through the prison of monitor terminal real time inspection transformer
Control data, and the diagnostic result in reference monitor data.Have a power failure since on-line real time monitoring does not need to transformer, reduce
The on-off times of transformer, and normal power supply is not interfered with, so as to improve the service life of transformer and user experience, carry
The high economy of operation of power networks；Since the on-line monitoring data that the transformer fault monitoring device measures are more true and reliable,
Therefore the reliability of monitoring result is improved.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can refer to aforementioned device embodiment in corresponding process, details are not described herein.
Transformer fault provided in an embodiment of the present invention monitors system, is monitored with the transformer fault that above-described embodiment provides
Device has identical technical characteristic, so can also solve the technical issues of identical, reaches identical technique effect.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In several embodiments provided herein, it should be understood that disclosed system, device can pass through it
Its mode is realized.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of division of logic function can have other dividing mode in actual implementation, in another example, multiple units or component can combine
Or it is desirably integrated into another system or some features can be ignored or does not perform.Another point, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be by some communication interfaces, the INDIRECT COUPLING of device or unit or
Communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.
If the function is realized in the form of SFU software functional unit and is independent product sale or in use, can be with
It is stored in the non-volatile computer read/write memory medium that a processor can perform.Based on such understanding, the present invention
The part that substantially contributes in other words to the prior art of technical solution or the part of the technical solution can be with software
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) performs each embodiment institute of the present invention
State all or part of step of method.And aforementioned storage medium includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
Store the medium of program code.
Finally it should be noted that：Embodiment described above, only specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement is carried out to which part technical characteristic；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be subject to the protection scope in claims.
Claims (10)
1. a kind of transformer fault monitoring device, which is characterized in that connect including main control chip and respectively with the main control chip
Partial Discharge Detection module, iron core grounding current detection module, analyzing and diagnosing module and the communication module connect；
The Partial Discharge Detection module is used to detecting local discharge signal inside transformer different location, and by the office
Portion's discharge signal is sent to the main control chip；
The iron core grounding current detection module is used to detecting the Ground leakage current of transformer core, and by the Ground leakage current
It is sent to the main control chip；
The main control chip is for receiving and send the local discharge signal and the Leaked Current of Line to Ground flow to the analyzing and diagnosing
Module；
The analyzing and diagnosing module is used to carry out analyzing and diagnosing to the local discharge signal of reception and the Ground leakage current,
And diagnostic result is returned to the main control chip；
The main control chip is additionally operable to the local discharge signal, the Ground leakage current and the diagnostic result being packaged, raw
The monitoring data is sent to monitor terminal into monitoring data, and by the communication module.
2. transformer fault monitoring device according to claim 1, which is characterized in that the Partial Discharge Detection module packet
Include ultra-high frequency signal sensor, HF current transformer and sonac；
The ultra-high frequency signal sensor is mounted in the operation hand hole or fuel outlet valve of the transformer；The high-frequency current mutual inductance
Device is mounted on bottom shielding of bushing, neutral ground line or the folder ground wire of the transformer；The sonac is mounted on
On the fuel tank outer wall of the transformer.
3. transformer fault monitoring device according to claim 1, which is characterized in that the iron core grounding current detects mould
Block includes centre path current sensor, and the centre path current sensor is mounted on the iron core grounding line of the transformer.
4. transformer fault monitoring device according to claim 1, which is characterized in that the transformer fault monitoring device
Further include oil temperature detection module；
The oil temperature detection module is connect with the main control chip, for detecting the temperature of the transformer oil in oil tank of transformer
Value, and it is sent to the main control chip.
5. transformer fault monitoring device according to claim 4, which is characterized in that the transformer fault monitoring device
Further include micro- water detection module；
Micro- water detection module is connect with the main control chip, for detecting the moisture dissolved in the transformer oil,
And it is sent to the main control chip.
6. transformer fault monitoring device according to claim 4, which is characterized in that the transformer fault monitoring device
Further include oil dissolved gas detection module；
The oil dissolved gas detection module is connect with the main control chip, is contained for detecting the gas dissolved in the transformer oil
Amount, and it is sent to the main control chip.
7. transformer fault monitoring device according to claim 1, which is characterized in that the transformer fault monitoring device
Further include vibration detection module；
The vibration detection module is connect with the main control chip, for detecting the vibration signal of the transformer, and is sent to
The main control chip.
8. transformer fault monitoring device according to claim 7, which is characterized in that the vibration detection module includes shaking
Dynamic sensor, the vibrating sensor are arranged on the surface of the transformer.
9. the transformer fault monitoring device according to any one of claim 1-8, which is characterized in that the transformer event
Barrier monitoring device further includes alarm module；
The alarm module is connect with the main control chip, for carrying out after receiving the alarm command that the main control chip sends
Alarm.
10. a kind of transformer fault monitors system, which is characterized in that including monitor terminal and as in the claims 1-9
Any one of them transformer fault monitoring device；
The transformer fault monitoring device is communicated to connect with the monitor terminal.
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Application publication date: 20180612 |