CN112129348A - Oil level monitoring-based transformer oil leakage monitoring device - Google Patents
Oil level monitoring-based transformer oil leakage monitoring device Download PDFInfo
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- CN112129348A CN112129348A CN202010994436.2A CN202010994436A CN112129348A CN 112129348 A CN112129348 A CN 112129348A CN 202010994436 A CN202010994436 A CN 202010994436A CN 112129348 A CN112129348 A CN 112129348A
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- 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
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Abstract
The invention discloses a transformer oil leakage monitoring device based on oil level monitoring, and relates to the technical field of power transformer monitoring equipment; the oil temperature meter is connected with and communicates with the acquisition device, the oil level meter is connected with and communicates with the acquisition device, the acquisition device is connected with and communicates with the optical modulator, the optical modulator is connected with and communicates with the optical converter, the optical converter is connected with and communicates with the filter, and the filter is connected with and communicates with the management terminal; the oil leakage of the transformer can be judged quickly, accurately and timely through an oil temperature meter, an oil level meter, a collection device, an optical modulator, a photoelectric converter, a filter, a management terminal and the like.
Description
Technical Field
The invention relates to the technical field of power transformer monitoring equipment, in particular to a transformer oil leakage monitoring device based on oil level monitoring.
Background
The transformer is a core unit of power transmission, and directly influences the stability of a power system. In the actual operation process, the oil leakage of the transformer may cause the reduction of internal insulation and affect the normal operation of the transformer, so how to find the oil leakage condition of the transformer in time so as to deal with the problem in time is a focus of the power system.
Research finds that the prior art mostly adopts a mode of matching an ultraviolet light source with a chromatograph for detection, namely, the ultraviolet light source irradiates on transformer oil to excite fluorescence, and the chromatograph is used for collecting spectral images, so that the area of the leaked oil is judged, and monitoring and alarming are performed.
However, this method has certain disadvantages:
firstly, the monitoring area is relatively limited, especially in the field of ultra-high voltage transformers, comprehensive monitoring is difficult to realize, and especially ultra-high voltage transformers are provided with sound-proof enclosures.
Secondly, since cobblestones are paved around the main transformer, it is difficult to actually calculate the area and the oil amount of the leaked oil.
Thirdly, ultraviolet rays are harmful to human health and hinder normal inspection of equipment maintenance personnel.
Problems with the prior art and considerations:
how to solve the technical problem of monitoring transformer seepage oil.
Disclosure of Invention
The invention aims to solve the technical problem of providing a transformer oil leakage monitoring device based on oil level monitoring, which can realize the quick, accurate and timely judgment of oil leakage of a transformer through an oil temperature meter, an oil level meter, a collecting device, an optical modulator, a photoelectric converter, a filter, a management terminal and the like.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a transformer oil leakage monitoring device based on oil level monitoring comprises an oil temperature meter and an oil level meter which are arranged on a transformer, an acquisition device which is positioned on the side of the transformer and is used for acquiring oil temperature information and oil level information of the transformer, an optical modulator which is positioned on the side of the acquisition device and is used for converting electric signals of the acquired oil temperature information and oil level information into optical signals, a photoelectric converter which is positioned on the side of a main control chamber and is used for converting the transmitted optical signals of the oil temperature information and the oil level information into electric signals, a filter which is positioned on the side of the photoelectric converter and is used for filtering the electric signals of the oil temperature information and the oil level information and eliminating noise interference, and a management terminal which is positioned in the main control chamber and is used for receiving and storing the oil temperature information and the oil level information, wherein the oil temperature meter is connected with and communicated with the acquisition, the optical modulator is connected to and communicates with the photoelectric converter, the photoelectric converter is connected to and communicates with the filter, and the filter is connected to and communicates with the management terminal.
The further technical scheme is as follows: the oil temperature meter and the collecting device are in line connection and one-way communication, and the oil level meter and the collecting device are in line connection and one-way communication.
The further technical scheme is as follows: the acquisition device is in wired connection with the optical modulator and is in one-way communication with the optical modulator.
The further technical scheme is as follows: the optical modulator is connected with the photoelectric converter through an optical fiber and is in one-way communication.
The further technical scheme is as follows: the photoelectric converter is connected with the filter in a wired mode and is in one-way communication.
The further technical scheme is as follows: the filter is in wired connection and one-way communication with the management terminal.
The further technical scheme is as follows: the management terminal is a desktop computer.
The further technical scheme is as follows: the oil level monitoring system further comprises a working terminal used for inquiring the oil temperature information and the oil level information on the management terminal, and the working terminal is connected with and communicates with the management terminal.
The further technical scheme is as follows: the working terminal is a mobile terminal, and the mobile terminal is in wireless connection and communication with the management terminal through a wireless communication device and an intranet.
The further technical scheme is as follows: the mobile terminal is a smart phone, a tablet computer or a notebook computer.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
first, a transformer oil leakage monitoring apparatus based on oil level monitoring includes an oil temperature gauge and an oil level gauge installed on a transformer, a collecting device located at a side of the transformer for acquiring oil temperature information and oil level information of the transformer, an optical modulator located at the side of the collecting device for converting electric signals of the acquired oil temperature information and oil level information into optical signals, a photoelectric converter located at a side of a main control chamber for converting the transmitted optical signals of the oil temperature information and the oil level information into electric signals, a filter located at the side of the photoelectric converter for filtering the electric signals of the oil temperature information and the oil level information and eliminating noise interference, and a management terminal located in the main control chamber for receiving and storing the oil temperature information and the oil level information, wherein the oil temperature gauge is connected and communicated with the collecting device, the oil level gauge is connected and communicated with the optical modulator, the optical modulator is connected to and communicates with the photoelectric converter, the photoelectric converter is connected to and communicates with the filter, and the filter is connected to and communicates with the management terminal. According to the technical scheme, oil leakage of the transformer is judged quickly, accurately and timely through the oil temperature meter, the oil level meter, the acquisition device, the optical modulator, the photoelectric converter, the filter, the management terminal and the like.
And secondly, the oil temperature meter and the collecting device are in line connection and one-way communication, and the oil level meter and the collecting device are in line connection and one-way communication. This technical scheme, communication stability is good, and is efficient, and the structure is more reasonable.
And thirdly, the acquisition device is in wired connection with the optical modulator and is in one-way communication with the optical modulator. This technical scheme, communication stability is good, and is efficient, and the structure is more reasonable.
Fourthly, the optical modulator is connected with the photoelectric converter through an optical fiber and is in one-way communication. This technical scheme, communication stability is good, and is efficient, and the structure is more reasonable.
Fifthly, the photoelectric converter is in wired connection with the filter and is in one-way communication. This technical scheme, communication stability is good, and is efficient, and the structure is more reasonable.
And sixthly, the filter is in wired connection with the management terminal and is in one-way communication with the management terminal. This technical scheme, communication stability is good, and is efficient, and the structure is more reasonable.
And seventhly, the management terminal is a desktop computer. The technical scheme is suitable for the existing desktop computer to serve as a management terminal, does not need to add new equipment, and is good in expansibility and compatibility.
And the eighth step, the system further comprises a working terminal used for inquiring the oil temperature information and the oil level information on the management terminal, and the working terminal is connected with and communicates with the management terminal. The technical scheme is flexible in working and more convenient in information query.
And ninthly, the working terminal is a mobile terminal, and the mobile terminal is in wireless connection and communication with the management terminal through a wireless communication device and an intranet. This technical scheme, mobile office, work efficiency is higher.
Tenth, the mobile terminal is a smart phone, a tablet computer or a notebook computer. According to the technical scheme, the existing operating equipment is used, new equipment does not need to be added, and the expansibility and the compatibility are good.
See detailed description of the preferred embodiments.
Drawings
FIG. 1 is a schematic block diagram of embodiment 1 of the present invention;
FIG. 2 is a topology diagram of embodiment 1 of the present invention;
FIG. 3 is a schematic block diagram of embodiment 2 of the present invention;
FIG. 4 is a schematic block diagram of embodiment 3 of the present invention;
fig. 5 is a schematic block diagram of embodiment 4 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited to the specific embodiments disclosed below.
Example 1:
as shown in fig. 1, the present invention discloses a transformer leakage oil monitoring device based on oil level monitoring, which comprises an oil temperature meter and an oil level gauge fixed on a transformer, an acquisition device located at the side of the transformer for acquiring oil temperature information and oil level information of the transformer, an optical modulator located at the side of the acquisition device for converting electric signals of the acquired oil temperature information and oil level information into optical signals, a photoelectric converter located at the side of a main control chamber for converting the transmitted optical signals of the oil temperature information and oil level information into electric signals, a filter located at the side of the photoelectric converter for filtering the electric signals of the oil temperature information and oil level information and eliminating noise interference, and a management terminal located in the main control chamber for receiving and storing the oil temperature information and oil level information, wherein the management terminal is a desktop computer, the oil temperature gauge is connected with the acquisition device by a wire and is in unidirectional, the oil level meter and the collecting device are in wired connection and one-way communication, the collecting device is in wired connection and one-way communication with the optical modulator, the optical modulator is connected with the photoelectric converter through an optical fiber and is in one-way communication, the photoelectric converter is in wired connection and is in one-way communication with the filter, and the filter is in wired connection and is in one-way communication with the management terminal.
The oil temperature gauge, the oil level gauge, the acquisition device, the optical modulator, the photoelectric converter, the filter, the desktop computer and the corresponding communication connection technology are not described in detail herein for the prior art.
Example 1 description of use:
according to the technical scheme, the oil temperature and oil level information of the transformer are directly acquired, and the oil temperature and oil level curve and the historical oil level are combined, so that the oil leakage of the transformer can be quickly, accurately and timely judged, and the alarm can be timely given.
As shown in fig. 2, the oil temperature gauge and the oil level gauge are provided for the transformer body, and the terminal row nodes are expanded and each is provided with one output end.
The acquisition device is respectively connected with the output ends of the oil temperature meter and the oil level meter, the output signals of the oil temperature and the oil level of the transformer are acquired in real time, and the acquisition frequency is not less than 60 points/h.
The optical modulator converts the collected electric signals into optical signals, so that transmission in a station is facilitated, and the influence of electromagnetic radiation is reduced.
The optical fiber realizes the long-distance transmission of the optical signal to the main control room.
After the optical signal is transmitted to the master control, the photoelectric converter converts the optical signal into an electric signal again, the electric signal is filtered by the filter, noise interference is eliminated, and the electric signal is transmitted to the management terminal for analysis and processing.
The method comprises the steps of inputting a standard oil temperature and oil level curve provided by a transformer manufacturer into a management terminal, calculating an oil level value at the current temperature by combining received oil temperature signals, comparing the oil level value with an actually acquired oil level value, obtaining oil temperature data, standard oil level data and acquired oil level data at each time point according to a data screening speed of 10 points/h, forming a fitting curve, displaying the fitting curve on a display screen of the management terminal, performing transverse comparison and longitudinal comparison of the standard oil level and the acquired oil level, and sending out an oil leakage fault alarm of the transformer when the difference value between the standard oil level and the acquired oil level exceeds 5% or the acquired oil level is continuously reduced.
Example 2:
the difference between the embodiment 2 and the embodiment 1 is that the oil level monitoring system further comprises a working terminal used for inquiring temperature information and oil level information on the management terminal, the working terminal is a mobile terminal, and the mobile terminal is in wireless connection and communication with the management terminal through a wireless communication device and an intranet.
As shown in fig. 3, the present invention discloses a transformer leakage oil monitoring apparatus based on oil level monitoring, which comprises an oil temperature meter and an oil level meter fixed on a transformer, an acquisition apparatus located at the side of the transformer for acquiring oil temperature information and oil level information of the transformer, an optical modulator located at the side of the acquisition apparatus for converting electrical signals of the acquired oil temperature information and oil level information into optical signals, a photoelectric converter located at the side of a main control chamber for converting the transmitted optical signals of the oil temperature information and oil level information into electrical signals, a filter located at the side of the photoelectric converter for filtering the electrical signals of the oil temperature information and oil level information and eliminating noise interference, a management terminal located in the main control chamber for receiving and storing the oil temperature information and oil level information, and a work terminal for inquiring the oil temperature information and oil level information on the management terminal, wherein the management terminal is a desktop computer, the oil temperature meter and the collecting device are in wired connection and one-way communication, the oil level meter and the collecting device are in wired connection and one-way communication, the collecting device and the optical modulator are in wired connection and one-way communication, the optical modulator is connected with the photoelectric converter through an optical fiber and is in one-way communication, the photoelectric converter is in wired connection and one-way communication with the filter, and the filter is in wired connection and one-way communication with the management terminal.
The working terminal is a smart phone, and the smart phone is in wireless connection and communication with the management terminal through a wireless communication device and an intranet.
The oil temperature gauge, the oil level gauge, the acquisition device, the optical modulator, the photoelectric converter, the filter, the smart phone, the desktop computer and the corresponding communication connection technology are not described herein in detail for the prior art.
Example 2 description of use:
according to the technical scheme, the oil temperature and oil level information of the transformer are directly acquired, and the oil temperature and oil level curve and the historical oil level are combined, so that the oil leakage of the transformer can be quickly, accurately and timely judged, and the alarm can be timely given.
The oil temperature meter and the oil level meter are self-contained in the transformer body, the terminal row nodes of the transformer body are expanded, and one path of output end is added.
The acquisition device is respectively connected with the output ends of the oil temperature meter and the oil level meter, the output signals of the oil temperature and the oil level of the transformer are acquired in real time, and the acquisition frequency is not less than 60 points/h.
The optical modulator converts the collected electric signals into optical signals, so that transmission in a station is facilitated, and the influence of electromagnetic radiation is reduced.
The optical fiber realizes the long-distance transmission of the optical signal to the main control room.
After the optical signal is transmitted to the master control, the photoelectric converter converts the optical signal into an electric signal again, the electric signal is filtered by the filter, noise interference is eliminated, and the electric signal is transmitted to the management terminal for analysis and processing.
The method comprises the steps of inputting a standard oil temperature and oil level curve provided by a transformer manufacturer into a management terminal, calculating an oil level value at the current temperature by combining received oil temperature signals, comparing the oil level value with an actually acquired oil level value, obtaining oil temperature data, standard oil level data and acquired oil level data at each time point according to a data screening speed of 10 points/h, forming a fitting curve, displaying the fitting curve on a display screen of the management terminal, performing transverse comparison and longitudinal comparison of the standard oil level and the acquired oil level, and sending out an oil leakage fault alarm of the transformer when the difference value between the standard oil level and the acquired oil level exceeds 5% or the acquired oil level is continuously reduced.
The operation and maintenance personnel can conveniently inquire the oil temperature information and the oil level information on the management terminal through the movable working terminal.
Example 3:
embodiment 3 is different from embodiment 2 in that the mobile terminal is a tablet computer.
As shown in fig. 4, the present invention discloses a transformer leakage oil monitoring apparatus based on oil level monitoring, which comprises an oil temperature meter and an oil level meter fixed on a transformer, an acquisition apparatus located at the side of the transformer for acquiring oil temperature information and oil level information of the transformer, an optical modulator located at the side of the acquisition apparatus for converting electrical signals of the acquired oil temperature information and oil level information into optical signals, a photoelectric converter located at the side of a main control chamber for converting the transmitted optical signals of the oil temperature information and oil level information into electrical signals, a filter located at the side of the photoelectric converter for filtering the electrical signals of the oil temperature information and oil level information and eliminating noise interference, a management terminal located in the main control chamber for receiving and storing the oil temperature information and oil level information, and a work terminal for inquiring the oil temperature information and oil level information on the management terminal, wherein the management terminal is a desktop computer, the oil temperature meter and the collecting device are in wired connection and one-way communication, the oil level meter and the collecting device are in wired connection and one-way communication, the collecting device and the optical modulator are in wired connection and one-way communication, the optical modulator is connected with the photoelectric converter through an optical fiber and is in one-way communication, the photoelectric converter is in wired connection and one-way communication with the filter, and the filter is in wired connection and one-way communication with the management terminal.
The working terminal is a tablet personal computer, and the tablet personal computer is in wireless connection and communication with the management terminal through a wireless communication device and an intranet.
The oil temperature gauge, the oil level gauge, the acquisition device, the optical modulator, the photoelectric converter, the filter, the tablet computer, the desktop computer and the corresponding communication connection technology are not described herein in detail for the prior art.
Example 3 description of use:
according to the technical scheme, the oil temperature and oil level information of the transformer are directly acquired, and the oil temperature and oil level curve and the historical oil level are combined, so that the oil leakage of the transformer can be quickly, accurately and timely judged, and the alarm can be timely given.
The oil temperature meter and the oil level meter are self-contained in the transformer body, the terminal row nodes of the transformer body are expanded, and one path of output end is added.
The acquisition device is respectively connected with the output ends of the oil temperature meter and the oil level meter, the output signals of the oil temperature and the oil level of the transformer are acquired in real time, and the acquisition frequency is not less than 60 points/h.
The optical modulator converts the collected electric signals into optical signals, so that transmission in a station is facilitated, and the influence of electromagnetic radiation is reduced.
The optical fiber realizes the long-distance transmission of the optical signal to the main control room.
After the optical signal is transmitted to the master control, the photoelectric converter converts the optical signal into an electric signal again, the electric signal is filtered by the filter, noise interference is eliminated, and the electric signal is transmitted to the management terminal for analysis and processing.
The method comprises the steps of inputting a standard oil temperature and oil level curve provided by a transformer manufacturer into a management terminal, calculating an oil level value at the current temperature by combining received oil temperature signals, comparing the oil level value with an actually acquired oil level value, obtaining oil temperature data, standard oil level data and acquired oil level data at each time point according to a data screening speed of 10 points/h, forming a fitting curve, displaying the fitting curve on a display screen of the management terminal, performing transverse comparison and longitudinal comparison of the standard oil level and the acquired oil level, and sending out an oil leakage fault alarm of the transformer when the difference value between the standard oil level and the acquired oil level exceeds 5% or the acquired oil level is continuously reduced.
The operation and maintenance personnel can conveniently inquire the oil temperature information and the oil level information on the management terminal through the movable working terminal.
Example 4:
embodiment 4 is different from embodiment 2 in that the mobile terminal is a notebook computer.
As shown in fig. 5, the present invention discloses a transformer leakage oil monitoring apparatus based on oil level monitoring, which comprises an oil temperature meter and an oil level meter fixed on a transformer, an acquisition apparatus located at the side of the transformer for acquiring oil temperature information and oil level information of the transformer, an optical modulator located at the side of the acquisition apparatus for converting electrical signals of the acquired oil temperature information and oil level information into optical signals, a photoelectric converter located at the side of a main control chamber for converting the transmitted optical signals of the oil temperature information and oil level information into electrical signals, a filter located at the side of the photoelectric converter for filtering the electrical signals of the oil temperature information and oil level information and eliminating noise interference, a management terminal located in the main control chamber for receiving and storing the oil temperature information and oil level information, and a work terminal for inquiring the oil temperature information and oil level information on the management terminal, wherein the management terminal is a desktop computer, the oil temperature meter and the collecting device are in wired connection and one-way communication, the oil level meter and the collecting device are in wired connection and one-way communication, the collecting device and the optical modulator are in wired connection and one-way communication, the optical modulator is connected with the photoelectric converter through an optical fiber and is in one-way communication, the photoelectric converter is in wired connection and one-way communication with the filter, and the filter is in wired connection and one-way communication with the management terminal.
The working terminal is a notebook computer, and the notebook computer is in wireless connection and communication with the management terminal through a wireless communication device and an intranet.
The oil temperature gauge, the oil level gauge, the acquisition device, the optical modulator, the photoelectric converter, the filter, the notebook computer, the desktop computer and the corresponding communication connection technology are not described herein in detail for the prior art.
Example 4 description of use:
according to the technical scheme, the oil temperature and oil level information of the transformer are directly acquired, and the oil temperature and oil level curve and the historical oil level are combined, so that the oil leakage of the transformer can be quickly, accurately and timely judged, and the alarm can be timely given.
The oil temperature meter and the oil level meter are self-contained in the transformer body, the terminal row nodes of the transformer body are expanded, and one path of output end is added.
The acquisition device is respectively connected with the output ends of the oil temperature meter and the oil level meter, the output signals of the oil temperature and the oil level of the transformer are acquired in real time, and the acquisition frequency is not less than 60 points/h.
The optical modulator converts the collected electric signals into optical signals, so that transmission in a station is facilitated, and the influence of electromagnetic radiation is reduced.
The optical fiber realizes the long-distance transmission of the optical signal to the main control room.
After the optical signal is transmitted to the master control, the photoelectric converter converts the optical signal into an electric signal again, the electric signal is filtered by the filter, noise interference is eliminated, and the electric signal is transmitted to the management terminal for analysis and processing.
The method comprises the steps of inputting a standard oil temperature and oil level curve provided by a transformer manufacturer into a management terminal, calculating an oil level value at the current temperature by combining received oil temperature signals, comparing the oil level value with an actually acquired oil level value, obtaining oil temperature data, standard oil level data and acquired oil level data at each time point according to a data screening speed of 10 points/h, forming a fitting curve, displaying the fitting curve on a display screen of the management terminal, performing transverse comparison and longitudinal comparison of the standard oil level and the acquired oil level, and sending out an oil leakage fault alarm of the transformer when the difference value between the standard oil level and the acquired oil level exceeds 5% or the acquired oil level is continuously reduced.
The operation and maintenance personnel can conveniently inquire the oil temperature information and the oil level information on the management terminal through the movable working terminal.
The invention concept of the application is as follows:
the oil leakage of the transformer can be judged quickly, accurately and timely through an oil temperature meter, an oil level meter, a collection device, an optical modulator, a photoelectric converter, a filter, a management terminal and the like.
The characteristics of this application:
the invention provides a transformer oil leakage monitoring and alarming device based on oil level monitoring, which can realize quick judgment and timely alarming on whether oil leaks from a transformer body. The method directly collects the oil temperature and oil level information of the transformer, combines an oil temperature and oil level curve and a historical oil level, and realizes quick, accurate and timely judgment of the oil leakage problem of the transformer through mathematical calculation.
The application provides a transformer oil leakage fault monitoring alarm system, mainly includes transformer oil temperature table and oil level table, the accurate collection system of undercurrent, light modulator, multimode fiber, photoelectric converter, wave filter and backstage control PC. Wherein: the oil temperature meter and the oil level meter are self-contained in the transformer body, the terminal row nodes of the transformer body are expanded, and one path of output end is added; the small current accurate acquisition device is connected with the newly added output ends of the oil temperature and oil level meter, and acquires output signals of the oil temperature and the oil level of the transformer in real time, wherein the acquisition frequency is not less than 60 points/h; the optical modulator converts the acquired electric signals into optical signals, so that the transmission in a station is facilitated, and the influence of electromagnetic radiation is reduced; the single-mode optical fiber realizes the long-distance transmission of optical signals to the main control room; after the optical signal is transmitted to the master control, the photoelectric converter converts the optical signal into an electric signal again, the electric signal is filtered by a filter, noise interference is eliminated, and the electric signal is transmitted to a background for analysis and processing; a standard oil temperature and oil level curve provided by a transformer manufacturer is input at a background PC (personal computer) terminal, an oil level value at the current temperature is calculated by combining a received oil temperature signal, the oil level value is compared with an actually acquired oil level value, oil temperature data, standard oil level data and acquired oil level data at each time point are obtained at the same time according to a data screening speed of 10 points/h to form a fitting curve, the fitting curve is displayed on a monitor display screen, transverse comparison and longitudinal comparison of the standard oil level and the acquired oil level are carried out, and when the difference value between the standard oil level and the acquired oil level exceeds 5% or the acquired oil level is continuously reduced, an oil leakage fault alarm of the transformer is sent.
After the application runs secretly for a period of time, the feedback of field technicians has the advantages that:
the invention utilizes the oil temperature and oil level information of the transformer body to carry out deep derivation judgment, calculates the theoretical value of the current oil level according to the oil temperature obtained at the current moment and the oil temperature curve of the transformer oil level, and judges whether the oil leakage condition exists in the equipment or not by comparing the theoretical value with the collected oil level value and the historical oil level value.
The method is simple and efficient, high in practicability and relatively accurate in measurement, can find out the oil leakage condition of equipment in advance, is suitable for monitoring the oil leakage of various transformers, and cannot generate other influences.
A transformer oil leakage monitoring device based on oil level monitoring comprises an oil temperature meter and an oil level meter which are arranged on a transformer, an acquisition device which is positioned on the side of the transformer and is used for acquiring oil temperature information and oil level information of the transformer, an optical modulator which is positioned on the side of the acquisition device and is used for converting electric signals of the acquired oil temperature information and oil level information into optical signals, a photoelectric converter which is positioned on the side of a main control chamber and is used for converting the transmitted optical signals of the oil temperature information and the oil level information into electric signals, a filter which is positioned on the side of the photoelectric converter and is used for filtering the electric signals of the oil temperature information and the oil level information and eliminating noise interference, and a management terminal which is positioned in the main control chamber and is used for receiving and storing the oil temperature information and the oil level information, wherein the oil temperature meter is connected with and communicated with the acquisition, the optical modulator is connected with and communicates with the photoelectric converter, the photoelectric converter is connected with and communicates with the filter, the filter is connected with and communicates with the management terminal, and oil leakage of the transformer can be judged quickly, accurately and timely through the oil temperature meter, the oil level meter, the acquisition device, the optical modulator, the photoelectric converter, the filter, the management terminal and the like.
The oil temperature meter and the collecting device are in line connection and one-way communication, the oil level meter and the collecting device are in line connection and one-way communication, the communication stability is good, the efficiency is high, and the structure is more reasonable.
The acquisition device is in wired connection with the optical modulator and is in one-way communication, so that the communication stability is good, the efficiency is high, and the structure is more reasonable.
The optical modulator is connected with the photoelectric converter through the optical fiber and is in one-way communication, so that the communication stability is good, the efficiency is high, and the structure is more reasonable.
The photoelectric converter is in wired connection with the filter and is in one-way communication, so that the communication stability is good, the efficiency is high, and the structure is more reasonable.
The filter is in wired connection with the management terminal and is in one-way communication, so that the communication stability is good, the efficiency is high, and the structure is more reasonable.
The management terminal is a desktop computer, is suitable for the existing desktop computer to serve as the management terminal, does not need to add new equipment, and is good in expansibility and compatibility.
The oil level monitoring system is characterized by further comprising a working terminal used for inquiring the oil temperature information and the oil level information on the management terminal, the working terminal is connected with the management terminal and is in communication with the management terminal, working is flexible, and information inquiry is more convenient.
The work terminal is a mobile terminal, the mobile terminal is in wireless connection and communication with the management terminal through the wireless communication device and the intranet, mobile office is achieved, and work efficiency is high.
The mobile terminal is a smart phone, a tablet personal computer or a notebook computer, the existing operating equipment is used, new equipment does not need to be added, and the expansibility and the compatibility are good.
Claims (10)
1. The utility model provides a transformer oil leakage monitoring device based on oil level is kept watch on which characterized in that: the oil temperature meter is connected and communicated with the acquisition device, the oil level meter is connected and communicated with the acquisition device, the acquisition device is connected and communicated with the optical modulator, the optical modulator is connected and communicated with the optical converter, the photoelectric converter is connected with and communicates with a filter, and the filter is connected with and communicates with a management terminal.
2. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 1, wherein: the oil temperature meter and the collecting device are in line connection and one-way communication, and the oil level meter and the collecting device are in line connection and one-way communication.
3. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 1, wherein: the acquisition device is in wired connection with the optical modulator and is in one-way communication with the optical modulator.
4. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 1, wherein: the optical modulator is connected with the photoelectric converter through an optical fiber and is in one-way communication.
5. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 1, wherein: the photoelectric converter is connected with the filter in a wired mode and is in one-way communication.
6. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 1, wherein: the filter is in wired connection and one-way communication with the management terminal.
7. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 1, wherein: the management terminal is a desktop computer.
8. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 1, wherein: the oil level monitoring system further comprises a working terminal used for inquiring the oil temperature information and the oil level information on the management terminal, and the working terminal is connected with and communicates with the management terminal.
9. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 8, wherein: the working terminal is a mobile terminal, and the mobile terminal is in wireless connection and communication with the management terminal through a wireless communication device and an intranet.
10. The oil level monitoring-based oil leakage monitoring apparatus for a transformer according to claim 8, wherein: the mobile terminal is a smart phone, a tablet computer or a notebook computer.
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| CN113063553A (en) * | 2021-03-26 | 2021-07-02 | 云南电网有限责任公司电力科学研究院 | Transformer oil leakage monitoring system and monitoring method |
| CN113865654A (en) * | 2021-12-01 | 2021-12-31 | 广东电网有限责任公司惠州供电局 | Intelligent remote monitoring system of oil-immersed transformer |
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