CN114062774A - Remote monitoring system and monitoring method for leakage current of transformer core and clamping piece - Google Patents
Remote monitoring system and monitoring method for leakage current of transformer core and clamping piece Download PDFInfo
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- CN114062774A CN114062774A CN202111496219.1A CN202111496219A CN114062774A CN 114062774 A CN114062774 A CN 114062774A CN 202111496219 A CN202111496219 A CN 202111496219A CN 114062774 A CN114062774 A CN 114062774A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010617 multipoint ground Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a remote monitoring system and a monitoring method for leakage current of a transformer iron core and a clamping piece, wherein the system comprises: the monitoring module, the measurement and control module, the communication module and the background server are arranged in the server; the monitoring module comprises a plurality of monitoring substations, and each monitoring substation is used for monitoring leakage current data and transmitting the leakage current data to the measurement and control module; the measurement and control module is used for carrying out data conversion on the received leakage current data and uploading the converted data to the communication module; the communication module is used for sending the converted data to the background server; and the background server is used for carrying out prediction analysis on the received data and carrying out electric leakage early warning according to the analysis result. Through the real-time monitoring and analysis of the leakage current of the transformer core and the clamping pieces, the fault caused by overhigh temperature of the core and the clamping pieces due to overlarge leakage current of the transformer core and the clamping pieces is effectively avoided, and the service life of the transformer is prolonged.
Description
Technical Field
The invention relates to the technical field of transformer monitoring, in particular to a system and a method for remotely monitoring leakage current of a transformer core and a clamping piece.
Background
The power transformer is the most important electrical equipment in the power system, and once a fault occurs in operation, serious consequences can be caused to the power system. When the transformer core and the clamping piece are grounded at multiple points, leakage current is increased, non-uniform potential between the core and the clamping piece forms circulation between the grounding points, and the core and the clamping piece are heated, failed and even burnt. In the existing transformer which is put into production and operation, a monitoring room cannot monitor leakage current of an iron core and a clamping piece of the transformer in real time, and field personnel still use a traditional pincerlike ammeter to carry out periodic monitoring, but the method cannot find multipoint ground faults of the iron core in time, and once the faults occur, corresponding measures cannot be taken in time.
Disclosure of Invention
The invention aims to provide a remote monitoring system and a remote monitoring method for leakage current of an iron core and a clamping piece of a transformer.
The invention provides a transformer core and clamp leakage current remote monitoring system, comprising: the monitoring module, the measurement and control module, the communication module and the background server are arranged in the server;
the monitoring module comprises a plurality of monitoring substations, and each monitoring substation is used for collecting transformer monitoring data and transmitting the monitoring data to the measurement and control module;
the measurement and control module is used for carrying out data conversion on the received monitoring data and uploading the converted data to the communication module;
the communication module is used for sending the converted data to the background server;
and the background server is used for carrying out prediction analysis on the received data and carrying out electric leakage early warning according to the analysis result.
The invention provides a remote monitoring method for leakage current of a transformer iron core and a clamping piece, which comprises the following steps:
s1, collecting transformer monitoring data through a monitoring substation and transmitting the transformer monitoring data to a measurement and control module;
s2, performing data conversion on the monitoring data through the measurement and control module, and uploading the converted data to a communication module;
s3, wirelessly sending the converted data to a background server through a communication module for storage and statistics;
and S4, performing electric leakage analysis on the stored and counted data by combining with the design parameters of the transformer through the background server, and performing electric leakage early warning according to the analysis result.
By adopting the embodiment of the invention, the running temperature and the grounding condition of the transformer core and the clamping piece are analyzed and processed in time through the real-time monitoring of the leakage current of the transformer core and the clamping piece, thereby effectively avoiding the fault caused by overhigh temperature of the transformer core and the clamping piece due to overhigh leakage current of the transformer core and the clamping piece and prolonging the service life of the transformer.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a system for remotely monitoring leakage current of a transformer core and a clip according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a monitoring module of the transformer core and the remote monitoring system for the leakage current of the clamping piece according to the embodiment of the invention;
FIG. 3 is a schematic diagram of a background server structure of a remote monitoring system for leakage current of a transformer core and a clip according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for remotely monitoring leakage current of a transformer core and a clip according to an embodiment of the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
System embodiment
According to an embodiment of the present invention, a system for remotely monitoring leakage current of a transformer core and a clamping piece is provided, fig. 1 is a schematic view of the system for remotely monitoring leakage current of a transformer core and a clamping piece according to an embodiment of the present invention, as shown in fig. 1, the system for remotely monitoring leakage current of a transformer core and a clamping piece according to an embodiment of the present invention specifically includes: the system comprises a monitoring module 10, a measurement and control module 12, a communication module 14 and a background server 16;
fig. 2 is a schematic structural diagram of a monitoring module of a transformer core and clamp leakage current remote monitoring system according to an embodiment of the present invention, as shown in fig. 2, a monitoring module 10 includes a plurality of monitoring substations 101, and each monitoring substation 101 specifically includes a leakage current collector 1011, a temperature sensor 1012, and a network communication module 1013;
the monitoring substation 101 is used for acquiring transformer monitoring data and transmitting the transformer monitoring data to the measurement and control module 12;
the leakage current collector 1011 is used for collecting leakage current data of the transformer iron core and the clamping piece; in this embodiment, the leakage current collector 1011 selects a bushing type current transformer;
a temperature sensor 1012 for collecting temperature data of the transformer core and the clamp;
and the network communication module 1013 is configured to transmit the transformer leakage current data and the temperature data to the measurement and control module 12.
The measurement and control module 12 is configured to perform data conversion on the received monitoring data, and upload the converted data to the communication module 14;
the measurement and control module 12 is connected with the communication module 14 through a super-six network cable, the measurement and control module 12 converts received data into TCP/IP network data through a TCP/IP protocol, and the TCP/IP network data is uploaded to the communication module 14 through the super-six network cable.
And the communication module 14 is used for sending the converted data to the background server 16.
The background server 16 is used for carrying out prediction analysis on the received data and carrying out electric leakage early warning according to the analysis result;
fig. 3 is a schematic structural diagram of a background server of the remote monitoring system for leakage current of a transformer core and a clip, according to an embodiment of the present invention, as shown in fig. 3, the background server 16 includes a data processing module 161, an early warning module 162, and a display 163, where:
the data processing module 161 is configured to store and count the received data, analyze whether leakage current exists in the transformer core and the clamping piece in combination with transformer design parameters, and send an analysis result to the early warning module 162 and the display 163;
the early warning module 162 is used for receiving the analysis result and judging whether electric leakage early warning needs to be performed according to the analysis result;
the display 163 is configured to display the received data and the analysis result, and display the warning information of the warning module 162;
in particular, leakage current real-time data stored on the server may be presented or accessed via display 163.
By adopting the embodiment of the invention, through the real-time monitoring of the leakage current of the transformer core and the clamping pieces, measurement and control personnel can check the related data of the leakage current of the transformer core and the clamping pieces at any time in a central control room, analyze and process the operating temperature and the grounding condition of the transformer core and the clamping pieces in time, effectively avoid the fault caused by overhigh temperature of the transformer core and the clamping pieces due to overlarge leakage current of the transformer core and the clamping pieces, and prolong the service life of the transformer.
Method embodiment
The embodiment of the present invention is a method embodiment used corresponding to the above system embodiment, and according to the embodiment of the present invention, a method for remotely monitoring leakage current of a transformer core and a clip is provided, fig. 4 is a flowchart of the method for remotely monitoring leakage current of a transformer core and a clip according to the embodiment of the present invention, and as shown in fig. 4, the method for remotely monitoring leakage current of a transformer core and a clip according to the embodiment of the present invention specifically includes:
s1, collecting transformer monitoring data through a monitoring substation and transmitting the transformer monitoring data to a measurement and control module;
specifically, the monitoring substation collects leakage current data of a transformer core and a clamping piece through a leakage current collector, collects temperature data of the transformer core and the clamping piece through a temperature sensor, the leakage current data and the temperature data form monitoring data, and the monitoring data are transmitted to a measurement and control module through a network communication module;
in this embodiment, a bushing type current transformer is used as the leakage current collector.
S2, performing data conversion on the monitoring data through the measurement and control module, and uploading the converted data to a communication module;
specifically, after receiving the transformer data, the measurement and control module converts the transformer data into TCP/IP network data through a TCP/IP protocol, and the TCP/IP network data is uploaded to the communication device through the super-six network cables.
S3, wirelessly sending the converted data to a background server through a communication module for storage and statistics;
s4, performing electric leakage analysis on the stored and counted data by combining with transformer design parameters through a background server, and performing electric leakage early warning according to an analysis result;
specifically, the method comprises the following steps:
the background server stores and counts the received data through the data processing module; analyzing the received data by combining with the design parameters of the transformer, judging whether the transformer has leakage current according to the analysis, and then sending the analysis result to an early warning module and a display;
the early warning module judges whether electric leakage early warning is needed or not according to the received analysis result, and if the received analysis result indicates that leakage current exists, early warning information is sent to a display to carry out early warning;
and displaying the received data and the analysis result through a display, and displaying the early warning information of the early warning module.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a transformer core and folder leakage current remote monitoring system which characterized in that includes: the monitoring module, the measurement and control module, the communication module and the background server are arranged in the server;
the monitoring module comprises a plurality of monitoring substations, and each monitoring substation is used for collecting transformer monitoring data and transmitting the monitoring data to the measurement and control module;
the measurement and control module is used for carrying out data conversion on the received monitoring data and uploading the converted data to the communication module;
the communication module is used for sending the converted data to the background server;
and the background server is used for carrying out prediction analysis on the received data and carrying out electric leakage early warning according to the analysis result.
2. The system of claim 1, wherein the monitoring substation specifically comprises a leakage current collector, a temperature sensor and a network communication module;
the leakage current collector is used for collecting leakage current data of the transformer iron core and the clamping piece;
the temperature sensor is used for acquiring temperature data of the transformer iron core and the clamping piece;
and the network communication module is used for transmitting the transformer leakage current data and the temperature data to the measurement and control module.
3. The system of claim 2, wherein the leakage current collector is a bushing-type current transformer.
4. The system of claim 1, wherein the measurement and control module is connected with the communication module through a super-six-type network cable, and the measurement and control module converts the received data into TCP/IP network data through a TCP/IP protocol.
5. The system of claim 1, wherein the backend server comprises a data processing module, an early warning module, and a display;
the data processing module is used for storing and counting the received data, analyzing whether leakage current exists in the transformer iron core and the clamping piece or not by combining transformer design parameters, and sending an analysis result to the early warning module and the display;
the early warning module is used for receiving the analysis result and judging whether electric leakage early warning is needed or not according to the analysis result;
and the display is used for displaying the received data and the analysis result and displaying the early warning information of the early warning module.
6. A transformer core and clamp leakage current remote monitoring method is characterized by comprising the following steps;
s1, collecting transformer monitoring data through a monitoring substation and transmitting the transformer monitoring data to a measurement and control module;
s2, performing data conversion on the monitoring data through the measurement and control module, and uploading the converted data to a communication module;
s3, wirelessly sending the converted data to a background server through a communication module for storage and statistics;
and S4, performing electric leakage analysis on the stored and counted data by combining with the design parameters of the transformer through the background server, and performing electric leakage early warning according to the analysis result.
7. The method according to claim 6, characterized in that the monitoring substation of step S1 includes in particular a leakage current collector and a temperature sensor;
step S1, the monitoring of the transformer data specifically includes: the leakage current collector collects leakage current data of the transformer core and the clamping piece, the temperature sensor collects temperature data of the transformer core and the clamping piece, and the leakage current data and the temperature data form the monitoring data.
8. The method of claim 7, wherein the leakage current collector is a bushing-type current transformer.
9. The method according to claim 6, wherein the step S2 of performing data conversion on the transformer data specifically comprises: the received data is converted into TCP/IP network data through the TCP/IP protocol.
10. The method of claim 6, wherein step S4 further comprises:
the received data are stored and counted through the data processing module, whether leakage current exists in the transformer iron core and the clamping piece or not is analyzed by combining transformer design parameters, and an analysis result is sent to the early warning module and the display;
judging whether electric leakage early warning is needed or not according to the received analysis result through the early warning module, and sending early warning information to a display if the electric leakage early warning is needed;
and displaying the received data and the analysis result through a display, and displaying the early warning information of the early warning module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496219.1A CN114062774A (en) | 2021-12-09 | 2021-12-09 | Remote monitoring system and monitoring method for leakage current of transformer core and clamping piece |
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| CN202111496219.1A CN114062774A (en) | 2021-12-09 | 2021-12-09 | Remote monitoring system and monitoring method for leakage current of transformer core and clamping piece |
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