CN112129348A - Transformer oil leakage monitoring device based on oil level monitoring - Google Patents

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

Transformer oil leakage monitoring device based on oil level monitoring

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 technique

Transformer is the core unit of power transmission, which directly affects the stability of power system. In the actual operation process, the leakage of oil from the transformer may reduce the internal insulation and affect the normal operation of the transformer. Therefore, how to find the oil leakage of the transformer in time and deal with it in time is the focus of the power system.

The investigation and research found that most of the prior art patents use the ultraviolet light source combined with the chromatograph for detection, that is, the ultraviolet light source is irradiated on the transformer oil to excite the fluorescence, and the spectrum image is collected by the chromatograph, and then the area of the leaking oil is judged and the monitoring alarm is carried out. .

However, this method has certain disadvantages:

First, the monitoring area is relatively limited, especially in the field of ultra-high voltage transformers, it is difficult to achieve comprehensive monitoring, especially the ultra-high voltage transformers have their own sound insulation cover.

Second, it is difficult to actually measure the area and quantity of oil leakage due to the laying of pebbles and other materials around the main transformer.

Third, ultraviolet light is harmful to human health and hinders the normal inspection of equipment maintenance personnel.

Existing technical problems and thinking:

How to solve the technical problem of monitoring transformer oil leakage.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a transformer oil leakage monitoring device based on oil level monitoring. , to achieve fast, accurate and timely judgment of transformer oil leakage.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a transformer oil leakage monitoring device based on oil level monitoring includes an oil temperature gauge and an oil level gauge arranged on the transformer, and a A collection device for oil temperature information and oil level information, an optical modulator located on the side of the collection device for converting the electrical signals of the acquired oil temperature information and oil level information into optical signals, and an optical modulator located on the main control room side for converting the transmitted oil A photoelectric converter that converts optical signals of temperature information and oil level information into electrical signals, a filter located on the photoelectric converter side for filtering the electrical signals of oil temperature information and oil level information and eliminating noise interference, and a filter located in the main control room A management terminal for receiving and storing oil temperature information and oil level information, the oil temperature gauge is connected and communicated with a collection device, the oil level gauge is connected and communicated with the collection device, and the collection device is connected with a light modulator The optical modulator is connected and communicated with the photoelectric converter, the photoelectric converter is connected and communicated with the filter, and the filter is connected and communicated with the management terminal.

A further technical solution is that: the oil temperature gauge and the collection device are wired and communicated unidirectionally, and the oil level gauge and the collection device are wired and communicated unidirectionally.

A further technical solution is that: the collection device is wired to the light modulator and communicates in one direction.

A further technical solution is that: the optical modulator is connected to the photoelectric converter through an optical fiber and communicates unidirectionally.

A further technical solution is that: the photoelectric converter and the filter are wired and communicated in one direction.

A further technical solution is that: the filter is connected to the management terminal by wire and communicates unidirectionally.

A further technical solution is that: the management terminal is a desktop computer.

A further technical solution is that: it further includes a working terminal for querying oil temperature information and oil level information on the management terminal, and the working terminal is connected and communicated with the management terminal.

A further technical solution is that: the working terminal is a mobile terminal, and the mobile terminal wirelessly connects and communicates with the management terminal through a wireless communication device and an intranet.

A further technical solution is that: the mobile terminal is a smart phone, a tablet computer or a notebook computer.

The beneficial effects produced by the above technical solutions are:

First, a transformer oil leakage monitoring device based on oil level monitoring includes an oil temperature gauge and an oil level gauge provided on the transformer, a collection device located on the transformer side for acquiring the oil temperature information and oil level information of the transformer, and a device located on the transformer side. The collection device side is used to convert the acquired electrical signals of oil temperature information and oil level information into optical signals, and the optical modulator located on the main control room side is used to convert the transmitted optical signals of oil temperature information and oil level information into electrical signals. A photoelectric converter for the signal, a filter located on the photoelectric converter side for filtering the electrical signals of the oil temperature information and oil level information and eliminating noise interference, and a filter located in the main control room for receiving the oil temperature information and oil level information and performing them. The storage management terminal, the oil temperature gauge is connected and communicated with the acquisition device, the oil level gauge is connected and communicated with the acquisition device, the acquisition device is connected and communicated with the optical modulator, and the optical modulator is connected with the photoelectric converter Connect and communicate, the photoelectric converter is connected and communicated with the filter, and the filter is connected and communicated with the management terminal. The technical solution realizes rapid, accurate and timely judgment of transformer oil leakage through oil temperature gauges, oil level gauges, acquisition devices, optical modulators, photoelectric converters, filters and management terminals.

Second, the oil temperature gauge and the collection device are wired and communicated unidirectionally, and the oil level gauge and the collection device are wired and communicated unidirectionally. The technical solution has good communication stability, high efficiency and more reasonable structure.

Third, the collection device is wired and communicated with the light modulator in one direction. The technical solution has good communication stability, high efficiency and more reasonable structure.

Fourth, the optical modulator is connected to the photoelectric converter through an optical fiber and communicates unidirectionally. The technical solution has good communication stability, high efficiency and more reasonable structure.

Fifth, the photoelectric converter and the filter are wired and communicated unidirectionally. The technical solution has good communication stability, high efficiency and more reasonable structure.

Sixth, the filter is wired to the management terminal and communicates unidirectionally. The technical solution has good communication stability, high efficiency and more reasonable structure.

Seventh, the management terminal is a desktop computer. The technical solution is applicable to an existing desktop computer as a management terminal, no new equipment is required, and the expansibility and compatibility are good.

Eighth, it also includes a working terminal for querying oil temperature information and oil level information on the management terminal, the working terminal is connected and communicated with the management terminal. The technical solution, flexible office, more convenient to query information.

Ninth, the working terminal is a mobile terminal, and the mobile terminal wirelessly connects and communicates with the management terminal through a wireless communication device and an intranet. The technical solution, mobile office, higher work efficiency.

Tenth, the mobile terminal is a smart phone, a tablet computer or a notebook computer. The technical solution uses the existing operating equipment, does not need to add new equipment, and has good expansibility and compatibility.

For details, please refer to the description in the detailed description.

Description of drawings

Fig. 1 is the principle block diagram of Embodiment 1 of the present invention;

2 is a topology diagram of Embodiment 1 of the present invention;

Fig. 3 is the principle block diagram of Embodiment 2 of the present invention;

Fig. 4 is the principle block diagram of Embodiment 3 of the present invention;

FIG. 5 is a principle block diagram of Embodiment 4 of the present invention.

Detailed ways

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. Obviously, the described embodiments are only a part of the embodiments of the present application, but 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. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can do so without departing from the connotation of the present application Similar promotion, therefore, the present application is not limited by the specific embodiments disclosed below.

Example 1:

As shown in FIG. 1 , the present invention discloses a transformer oil leakage monitoring device based on oil level monitoring, including an oil temperature gauge and an oil level gauge fixed on the transformer, and an oil temperature gauge and oil level gauge located on the transformer side for obtaining the transformer oil temperature information and oil level gauge. A device for collecting bit information, an optical modulator on the side of the collecting device for converting the electrical signals of the acquired oil temperature information and oil level information into optical signals, and a light modulator on the side of the main control room for converting the transmitted oil temperature information and oil level A photoelectric converter for converting the optical signal of the information into an electrical signal, a filter located on the photoelectric converter side for filtering the electrical signals of the oil temperature information and oil level information and eliminating noise interference, and a filter located in the main control room for receiving the oil temperature A management terminal for storing and storing information and oil level information, the management terminal is a desktop computer, the oil temperature gauge is wired to the acquisition device and communicates unidirectionally, the oil level gauge is wired to the acquisition device and communicates unidirectionally, The collection device is wired to the optical modulator and communicates unidirectionally, the optical modulator is connected to the photoelectric converter through an optical fiber and communicates unidirectionally, the photoelectric converter is wired to the filter and communicates unidirectionally, and the filter The controller and the management terminal are wired and communicated in one way.

Among them, the oil temperature gauge, the oil level gauge, the collecting device, the light modulator, the photoelectric converter, the filter, the desktop computer itself and the corresponding communication connection technology are the prior art and will not be repeated here.

Example 1 Instructions for use:

The technical solution directly collects the oil temperature and oil level information of the transformer, combined with the oil temperature and oil level curve and historical oil level, to realize fast, accurate and timely judgment of transformer oil leakage and timely alarm.

As shown in Figure 2, the oil temperature gauge and the oil level gauge are self-contained in the transformer body. The terminal block nodes are expanded, and an output end is added to each.

The acquisition device is respectively connected with the output ends of the oil temperature gauge and the oil level gauge, and collects the output signals of the oil temperature and oil level of the transformer in real time, and the collection frequency is not less than 60 points/h.

The optical modulator converts the collected electrical signals into optical signals, which is convenient for intra-station transmission and reduces the influence of electromagnetic radiation.

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 main control, the photoelectric converter converts the optical signal into an electrical signal again, which is filtered by a filter to eliminate noise interference, and then transmitted to the management terminal for analysis and processing.

Enter the standard oil temperature and oil level curve provided by the transformer manufacturer into the management terminal, and combine the received oil temperature signal to calculate the oil level value at the current temperature, and compare it with the actual oil level value collected. h data screening speed, obtain the oil temperature data, standard oil level data and collected oil level data at each time point, form a fitting curve, and display it on the display screen of the management terminal, and carry out the horizontal relationship between the standard oil level and the collected oil level. Compared with the longitudinal comparison, when the difference between the standard oil level and the collected oil level exceeds 5% or the collected oil level continues to decrease, a transformer oil leakage fault alarm will be issued.

Example 2:

The difference between Embodiment 2 and Embodiment 1 is that it also includes a working terminal for querying oil temperature information and oil level information on the management terminal. The working terminal is a mobile terminal, and the mobile terminal uses a wireless communication device and an intranet. Wirelessly connect and communicate with the management terminal.

As shown in FIG. 3 , the present invention discloses a transformer oil leakage monitoring device based on oil level monitoring, including an oil temperature gauge and an oil level gauge fixed on the transformer, and an oil temperature gauge and oil level gauge located on the transformer side for obtaining the transformer oil temperature information and oil level gauge. A device for collecting bit information, an optical modulator on the side of the collecting device for converting the electrical signals of the acquired oil temperature information and oil level information into optical signals, and a light modulator on the side of the main control room for converting the transmitted oil temperature information and oil level A photoelectric converter that converts the optical signal of the information into an electrical signal, a filter located on the photoelectric converter side to filter the electrical signals of the oil temperature information and oil level information and eliminate noise interference, located in the main control room to receive the oil temperature A management terminal for storing and storing information and oil level information, and a working terminal for querying oil temperature information and oil level information on the management terminal, the management terminal is a desktop computer, and the oil temperature meter is wired to the acquisition device and unidirectionally connected Communication, the oil level gauge is wired to the acquisition device and communicates unidirectionally, the acquisition device is wired to the optical modulator and communicates unidirectionally, and the optical modulator is connected to the photoelectric converter through an optical fiber and communicates unidirectionally, so The photoelectric converter is wired to the filter and communicates unidirectionally, and the filter is wired to the management terminal and communicates unidirectionally.

The working terminal is a smart phone, and the smart phone wirelessly connects and communicates with the management terminal through a wireless communication device and an intranet.

Among them, the oil temperature gauge, the oil level gauge, the acquisition device, the light modulator, the photoelectric converter, the filter, the smart phone and the desktop computer itself, and the corresponding communication connection technology are the prior art and will not be repeated here.

Example 2 Instructions for use:

The technical solution directly collects the oil temperature and oil level information of the transformer, combined with the oil temperature and oil level curve and historical oil level, to realize fast, accurate and timely judgment of transformer oil leakage and timely alarm.

The oil temperature gauge and oil level gauge are self-contained in the transformer body. The terminal block nodes are expanded, and an output end is added to each.

The acquisition device is respectively connected with the output ends of the oil temperature gauge and the oil level gauge, and collects the output signals of the oil temperature and oil level of the transformer in real time, and the collection frequency is not less than 60 points/h.

The optical modulator converts the collected electrical signals into optical signals, which is convenient for intra-station transmission and reduces the influence of electromagnetic radiation.

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 main control, the photoelectric converter converts the optical signal into an electrical signal again, which is filtered by a filter to eliminate noise interference, and then transmitted to the management terminal for analysis and processing.

Enter the standard oil temperature and oil level curve provided by the transformer manufacturer into the management terminal, and combine the received oil temperature signal to calculate the oil level value at the current temperature, and compare it with the actual oil level value collected. h data screening speed, obtain the oil temperature data, standard oil level data and collected oil level data at each time point, form a fitting curve, and display it on the display screen of the management terminal, and carry out the horizontal relationship between the standard oil level and the collected oil level. Compared with the longitudinal comparison, when the difference between the standard oil level and the collected oil level exceeds 5% or the collected oil level continues to decrease, a transformer oil leakage fault alarm will be issued.

Operation and maintenance personnel can easily query the oil temperature information and oil level information on the management terminal through the mobile work terminal.

Example 3:

The difference between Embodiment 3 and Embodiment 2 is that the mobile terminal is a tablet computer.

As shown in FIG. 4 , the present invention discloses a transformer oil leakage monitoring device based on oil level monitoring, including an oil temperature gauge and an oil level gauge fixed on the transformer, and an oil temperature gauge and oil level gauge located on the transformer side for obtaining the transformer oil temperature information and oil level gauge. A device for collecting bit information, an optical modulator on the side of the collecting device for converting the electrical signals of the acquired oil temperature information and oil level information into optical signals, and a light modulator on the side of the main control room for converting the transmitted oil temperature information and oil level A photoelectric converter that converts the optical signal of the information into an electrical signal, a filter located on the photoelectric converter side to filter the electrical signals of the oil temperature information and oil level information and eliminate noise interference, located in the main control room to receive the oil temperature A management terminal for storing and storing information and oil level information, and a working terminal for querying oil temperature information and oil level information on the management terminal, the management terminal is a desktop computer, and the oil temperature meter is wired to the acquisition device and unidirectionally connected Communication, the oil level gauge is wired to the acquisition device and communicates unidirectionally, the acquisition device is wired to the optical modulator and communicates unidirectionally, and the optical modulator is connected to the photoelectric converter through an optical fiber and communicates unidirectionally, so The photoelectric converter is wired to the filter and communicates unidirectionally, and the filter is wired to the management terminal and communicates unidirectionally.

The working terminal is a tablet computer, and the tablet computer wirelessly connects and communicates with the management terminal through a wireless communication device and an intranet.

Among them, the oil temperature gauge, the oil level gauge, the collecting device, the light modulator, the photoelectric converter, the filter, the tablet computer and the desktop computer itself, and the corresponding communication connection technology are the prior art and will not be repeated here.

Example 3 Instructions for use:

The technical solution directly collects the oil temperature and oil level information of the transformer, combined with the oil temperature and oil level curve and historical oil level, to realize fast, accurate and timely judgment of transformer oil leakage and timely alarm.

The oil temperature gauge and oil level gauge are self-contained in the transformer body. The terminal block nodes are expanded, and an output end is added to each.

The acquisition device is respectively connected with the output ends of the oil temperature gauge and the oil level gauge, and collects the output signals of the oil temperature and oil level of the transformer in real time, and the collection frequency is not less than 60 points/h.

The optical modulator converts the collected electrical signals into optical signals, which is convenient for intra-station transmission and reduces the influence of electromagnetic radiation.

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 main control, the photoelectric converter converts the optical signal into an electrical signal again, which is filtered by a filter to eliminate noise interference, and then transmitted to the management terminal for analysis and processing.

Enter the standard oil temperature and oil level curve provided by the transformer manufacturer into the management terminal, and combine the received oil temperature signal to calculate the oil level value at the current temperature, and compare it with the actual oil level value collected. h data screening speed, obtain the oil temperature data, standard oil level data and collected oil level data at each time point, form a fitting curve, and display it on the display screen of the management terminal, and carry out the horizontal relationship between the standard oil level and the collected oil level. Compared with the longitudinal comparison, when the difference between the standard oil level and the collected oil level exceeds 5% or the collected oil level continues to decrease, a transformer oil leakage fault alarm will be issued.

Operation and maintenance personnel can easily query the oil temperature information and oil level information on the management terminal through the mobile work 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 oil leakage monitoring device based on oil level monitoring, including an oil temperature gauge and an oil level gauge fixed on the transformer, and an oil temperature gauge and oil level gauge located on the transformer side for obtaining the transformer oil temperature information and oil level gauge. A device for collecting bit information, an optical modulator on the side of the collecting device for converting the electrical signals of the acquired oil temperature information and oil level information into optical signals, and a light modulator on the side of the main control room for converting the transmitted oil temperature information and oil level A photoelectric converter that converts the optical signal of the information into an electrical signal, a filter located on the photoelectric converter side to filter the electrical signals of the oil temperature information and oil level information and eliminate noise interference, located in the main control room to receive the oil temperature A management terminal for storing and storing information and oil level information, and a working terminal for querying oil temperature information and oil level information on the management terminal, the management terminal is a desktop computer, and the oil temperature meter is wired to the acquisition device and unidirectionally connected Communication, the oil level gauge is wired to the acquisition device and communicates unidirectionally, the acquisition device is wired to the optical modulator and communicates unidirectionally, and the optical modulator is connected to the photoelectric converter through an optical fiber and communicates unidirectionally, so The photoelectric converter is wired to the filter and communicates unidirectionally, and the filter is wired to the management terminal and communicates unidirectionally.

The working terminal is a notebook computer, and the notebook computer wirelessly connects and communicates with the management terminal through a wireless communication device and an intranet.

Among them, the oil temperature gauge, the oil level gauge, the collecting device, the light modulator, the photoelectric converter, the filter, the notebook computer and the desktop computer itself and the corresponding communication connection technology are the prior art and will not be described here.

Example 4 Instructions for use:

The technical solution directly collects the oil temperature and oil level information of the transformer, combined with the oil temperature and oil level curve and historical oil level, to realize fast, accurate and timely judgment of transformer oil leakage and timely alarm.

The oil temperature gauge and oil level gauge are self-contained in the transformer body. The terminal block nodes are expanded, and an output end is added to each.

The acquisition device is respectively connected with the output ends of the oil temperature gauge and the oil level gauge, and collects the output signals of the oil temperature and oil level of the transformer in real time, and the collection frequency is not less than 60 points/h.

The optical modulator converts the collected electrical signals into optical signals, which is convenient for intra-station transmission and reduces the influence of electromagnetic radiation.

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 main control, the photoelectric converter converts the optical signal into an electrical signal again, which is filtered by a filter to eliminate noise interference, and then transmitted to the management terminal for analysis and processing.

Enter the standard oil temperature and oil level curve provided by the transformer manufacturer into the management terminal, and combine the received oil temperature signal to calculate the oil level value at the current temperature, and compare it with the actual oil level value collected. h data screening speed, obtain the oil temperature data, standard oil level data and collected oil level data at each time point, form a fitting curve, and display it on the display screen of the management terminal, and carry out the horizontal relationship between the standard oil level and the collected oil level. Compared with the longitudinal comparison, when the difference between the standard oil level and the collected oil level exceeds 5% or the collected oil level continues to decrease, a transformer oil leakage fault alarm will be issued.

Operation and maintenance personnel can easily query the oil temperature information and oil level information on the management terminal through the mobile work terminal.

The inventive concept of this application:

It realizes fast, accurate and timely judgment of transformer oil leakage through oil temperature gauge, oil level gauge, acquisition device, optical modulator, photoelectric converter, filter and management terminal.

Features of this application:

The invention provides a transformer oil leakage monitoring and alarm device based on oil level monitoring, which can quickly judge whether the transformer body leaks oil and give an alarm in time. The invention directly collects the oil temperature and oil level information of the transformer, combines the oil temperature and oil level curve and the historical oil level, and realizes fast, accurate and timely judgment of the transformer oil leakage problem through mathematical calculation.

The application provides a transformer oil leakage fault monitoring and alarm system, which mainly includes a transformer oil temperature gauge and oil level gauge, a small current accurate acquisition device, an optical modulator, a multi-mode optical fiber, a photoelectric converter, a filter and a background monitoring PC. . Among them: the oil temperature gauge and oil level gauge are self-contained in the transformer body, and the terminal block nodes are expanded, each adding an output end; the small current accurate acquisition device is connected to the new output end of the oil temperature and oil level gauge, and the transformer is collected in real time. The output signal of oil temperature and oil level is not less than 60 points/h; the optical modulator converts the collected electrical signal into an optical signal, which is convenient for intra-station transmission and reduces the influence of electromagnetic radiation; the single-mode fiber realizes the optical signal to the main control long-distance transmission of the room; after the optical signal is transmitted to the main control, the photoelectric converter converts the optical signal into an electrical signal again, which is filtered by a filter to eliminate noise interference, and then transmitted to the background for analysis and processing; the background PC input is provided by the transformer manufacturer. According to the standard oil temperature and oil level curve, and combined with the received oil temperature signal, calculate the oil level value at the current temperature, compare it with the actual oil level value collected, and filter the speed according to the data of 10 points/h, get The oil temperature data, standard oil level data and collected oil level data at each time point form a fitting curve, which is displayed on the monitor screen. When the difference from the collected oil level exceeds 5% or the collected oil level continues to decrease, a transformer oil leakage fault alarm will be issued.

After the application has been run confidentially for a period of time, the benefits of feedback from on-site technicians are:

The invention uses the oil temperature and oil level information of the transformer body to carry out in-depth derivation and judgment. According to the oil temperature obtained at the current moment, combined with the oil level oil temperature curve of the transformer, the theoretical value of the current oil level is calculated and obtained. Compare the historical oil level values to determine whether there is oil leakage in the equipment.

The invention is simple and efficient, has strong practicability, relatively accurate measurement, can detect oil leakage of equipment in advance, is suitable for monitoring oil leakage of various types of transformers, and does not produce other influences.

A transformer oil leakage monitoring device based on oil level monitoring includes an oil temperature gauge and an oil level gauge arranged on the transformer, a collection device on the transformer side for acquiring oil temperature information and oil level information of the transformer, and a collection device on the side of the collection device. An optical modulator for converting the acquired electrical signals of oil temperature information and oil level information into optical signals, and a photoelectric device located on the main control room side for converting the transmitted optical signals of oil temperature information and oil level information into electrical signals The converter, the filter located on the photoelectric converter side for filtering the electrical signals of oil temperature information and oil level information and eliminating noise interference, and the management located in the main control room for receiving and storing oil temperature information and oil level information Terminal, the oil temperature gauge is connected and communicated with a collection device, the oil level gauge is connected and communicated with a collection device, the collection device is connected and communicated with a light modulator, and the light modulator is connected and communicated with a photoelectric converter , the photoelectric converter is connected and communicated with the filter, and the filter is connected and communicated with the management terminal through the oil temperature gauge, oil level gauge, acquisition device, optical modulator, photoelectric converter, filter and management terminal etc., to realize fast, accurate and timely judgment of transformer oil leakage.

The oil temperature gauge is wired and communicated with the acquisition device in one direction, and the oil level gauge is wired with the acquisition device and communicated in one direction. The communication stability is good, the efficiency is high, and the structure is more reasonable.

The collection device is wired with the optical modulator and communicates in one direction, with good communication stability, high efficiency and more reasonable structure.

The optical modulator is connected with a photoelectric converter through an optical fiber and communicates in one direction, with good communication stability, high efficiency and more reasonable structure.

The photoelectric converter and the filter are wired and communicated in one direction, the communication stability is good, the efficiency is high, and the structure is more reasonable.

The filter is wired with the management terminal and communicates in one direction, with good communication stability, high efficiency and more reasonable structure.

The management terminal is a desktop computer, and the existing desktop computer is suitable for use as the management terminal, no new equipment is required, and the expansibility and compatibility are good.

It also includes a working terminal for querying the oil temperature information and oil level information on the management terminal, the working terminal is connected and communicated with the management terminal, and the working terminal is flexible and information query is more convenient.

The working terminal is a mobile terminal, and the mobile terminal is wirelessly connected and communicated with the management terminal through a wireless communication device and an intranet, so that the working efficiency is higher.

The mobile terminal is a smart phone, a tablet computer or a notebook computer, uses existing operating equipment, does not need to add new equipment, and has good expansibility and compatibility.

Claims (10)

1. a transformer oil leakage monitoring device based on oil level monitoring, is characterized in that: comprise the oil temperature gauge and the oil level gauge that are arranged on the transformer, be positioned at the transformer side for obtaining the oil temperature information and the oil level information of the transformer. A collection device, an optical modulator on the side of the collection device for converting the electrical signals of the acquired oil temperature information and oil level information into optical signals, and an optical modulator on the main control room side for converting the transmitted oil temperature information and oil level information A photoelectric converter that converts signals into electrical signals, a filter located on the photoelectric converter side for filtering the electrical signals of oil temperature information and oil level information and eliminating noise interference, and a filter located in the main control room for receiving oil temperature information and oil level information A management terminal for storing bit information, the oil temperature gauge is connected and communicated with a collection device, the oil level gauge is connected and communicated with a collection device, the collection device is connected and communicated with an optical modulator, and the optical modulator It is connected and communicated with a photoelectric converter, the photoelectric converter is connected and communicated with a filter, and the filter is connected and communicated with a management terminal. 2 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 1 , wherein the oil temperature gauge is wired to the acquisition device and communicates in one direction, and the oil level gauge is wired to the acquisition device. 3 . and one-way communication. 3 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 1 , wherein the collecting device is connected to the optical modulator by wire and communicates in one direction. 4 . 4 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 1 , wherein the optical modulator is connected to the photoelectric converter through an optical fiber and communicates unidirectionally. 5 . 5 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 1 , wherein the photoelectric converter and the filter are wired and communicated in one direction. 6 . 6 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 1 , wherein the filter and the management terminal are wired and communicated in one direction. 7 . 7 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 1 , wherein the management terminal is a desktop computer. 8 . 8 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 1 , further comprising a working terminal for querying oil temperature information and oil level information on the management terminal, and the working terminal is connected to the management terminal. 9 . Terminals connect and communicate. 9 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 8 , wherein the working terminal is a mobile terminal, and the mobile terminal is wirelessly connected to the management terminal through a wireless communication device and an intranet. 10 . communication. 10 . The transformer oil leakage monitoring device based on oil level monitoring according to claim 8 , wherein the mobile terminal is a smart phone, a tablet computer or a notebook computer. 11 .

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