Transformer monitoring system

Abstract

Embodiments of the present invention provide a transformer monitoring system, belonging to the technical field of transformer monitoring and maintenance. The respirator comprises: multiple sensors disposed on the inner wall of the respirator; and a wireless signal generator disposed within the respirator, connected to the sensors via wireless signals, for transmitting the sensor output signal strength to the outside in real time. The novel transformer respirator, control center, and monitoring system provided by the present invention improve the respirator within the transformer, enabling personnel in the control center to remotely monitor the respirator's status in real time, reducing respirator maintenance costs and improving the efficiency of operators.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer monitoring and maintenance, and in particular to a transformer monitoring system. Background Art

[0002] A transformer breather, also known as a transformer desiccant, is a glass container filled with a desiccant material such as color-changing silica gel. Its function is to expel excess air from the transformer's oil pillow capsule when the transformer expands due to heat. When the transformer oil cools and contracts, it draws in outside air, allowing the transformer oil in the reservoir to filter out the outside air. The silica gel then absorbs any remaining moisture, protecting the transformer oil from moisture intrusion from the outside air. This keeps the moisture content within the standard range, preventing moisture from entering the transformer and ensuring the transformer oil's insulation strength.

[0003] Because respirators are typically exposed to harsh outdoor environments, the silicone can deliquesce and discolor over time. Therefore, the silicone inside the respirator must be replaced regularly. During field operation, if the transformer oil becomes damp and is not replaced for an extended period, it can degrade insulation and cause internal transformer failures, impacting the safe, reliable, and stable operation of other energized circuits. Summary of the Invention

[0004] The purpose of the embodiment of the present invention is to provide a transformer monitoring system. The respirator can overcome the technical defects of the respirators in the prior art, such as low safety and high maintenance cost.

[0005] In order to achieve the above objectives, an embodiment of the present invention provides a novel transformer respirator, the respirator comprising:

[0006] a plurality of sensors disposed on the inner wall of the respirator;

[0007] The wireless signal generator is arranged inside the respirator and is connected to the sensor via a wireless signal, and is used to send the output signal strength of the sensor to the outside in real time.

[0008] Optionally, the sensor includes a humidity sensor, and the humidity sensor is used to obtain the humidity of the silica gel inside the respirator;

[0009] The wireless signal generator is further used to send the humidity through a wireless wide area network.

[0010] Optionally, the respirator further comprises a heating device, which is disposed inside the respirator and connected to the wireless signal generator;

[0011] The wireless signal generator is further configured to receive a heating instruction sent from the outside, and upon receiving the heating instruction, send the heating instruction to the heating device;

[0012] The heating device is used to start up to heat the silica gel inside the respirator when receiving the heating instruction.

[0013] On the other hand, the present invention further provides a control center, comprising:

[0014] A wireless signal receiving device for receiving external output signal strength;

[0015] A processor, connected to the wireless signal receiving device, configured to:

[0016] receiving the output signal strength;

[0017] determining a fluctuation range of the output signal strength;

[0018] Determining that the fluctuation range is within a preset first interval;

[0019] If it is determined that the fluctuation range is within the first interval, determining that blockage occurs inside the respirator;

[0020] An alarm is connected to the processor and is configured to be activated to sound an alarm when it is determined that a blockage occurs inside the respirator.

[0021] Optionally, the processor is further configured to:

[0022] Determining whether the fluctuation range is within a preset second interval, wherein the range of the second interval is larger than the first interval;

[0023] If it is determined that the fluctuation range is within the second interval, it is determined that the ventilator is normal.

[0024] Optionally, the processor is further configured to:

[0025] Determining whether the fluctuation range is within a preset third interval, wherein the range of the third interval is greater than the second interval;

[0026] In the case where it is determined that the fluctuation range is within the third interval, determining that the inner wall of the respirator is ruptured;

[0027] The alarm is further configured to be activated to sound an alarm if it is determined that a rupture has occurred inside the respirator.

[0028] Optionally, the wireless signal receiving device is further used to receive an external humidity signal;

[0029] The processor is further configured to:

[0030] Determining whether the humidity is greater than a preset humidity threshold;

[0031] If it is determined that the humidity is greater than the humidity threshold, determining that the humidity of the silica gel inside the respirator is too high;

[0032] The wireless signal receiving device is controlled to send a heating instruction outward.

[0033] In another aspect, the present invention further provides a transformer monitoring system, the monitoring system comprising:

[0034] Respirator, including:

[0035] a plurality of sensors disposed on the inner wall of the respirator;

[0036] a wireless signal generator, disposed inside the respirator and connected to the sensor via a wireless signal, for transmitting the output signal strength of the sensor to the outside in real time;

[0037] Control Center, including:

[0038] a wireless signal receiving device, configured to receive the output signal strength;

[0039] A processor, connected to the wireless signal receiving device, configured to:

[0040] receiving the output signal strength;

[0041] determining a fluctuation range of the output signal strength;

[0042] Determining that the fluctuation range is within a preset first interval;

[0043] If it is determined that the fluctuation range is within the first interval, determining that blockage occurs inside the respirator;

[0044] An alarm is connected to the processor and is configured to be activated to sound an alarm when it is determined that a blockage occurs inside the respirator.

[0045] Optionally, the processor is further configured to:

[0046] Determining whether the fluctuation range is within a preset second interval, wherein the range of the second interval is larger than the first interval;

[0047] If it is determined that the fluctuation range is within the second interval, determining that the ventilator is normal;

[0048] Determining whether the fluctuation range is within a preset third interval, wherein the range of the third interval is greater than the second interval;

[0049] In the case where it is determined that the fluctuation range is within the third interval, determining that the inner wall of the respirator is ruptured;

[0050] The alarm is further configured to be activated to sound an alarm if it is determined that a rupture has occurred inside the respirator.

[0051] Optionally, the sensor includes a humidity sensor, and the humidity sensor is used to obtain the humidity of the silica gel inside the respirator;

[0052] The wireless signal generator is further used to send the humidity through a wireless wide area network;

[0053] The wireless signal receiving device is further used to receive the humidity signal;

[0054] The processor is further configured to:

[0055] Determining whether the humidity is greater than a preset humidity threshold;

[0056] If it is determined that the humidity is greater than the humidity threshold, determining that the humidity of the silica gel inside the respirator is too high;

[0057] Controlling the wireless signal receiving device to send a heating instruction outward;

[0058] The respirator further includes a heating device, which is disposed inside the respirator and connected to the wireless signal generator;

[0059] The wireless signal generator is further configured to receive a heating instruction sent from the outside, and upon receiving the heating instruction, send the heating instruction to the heating device;

[0060] The heating device is used to start up to heat the silica gel inside the respirator when receiving the heating instruction.

[0061] Through the above technical solution, the transformer monitoring system provided by the present invention improves the respirator inside the transformer, so that personnel located in the control center can remotely obtain the status of the respirator in real time, reducing the maintenance cost of the respirator and improving the work efficiency of the operation and maintenance personnel.

[0062] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0064] Figure 1 is a structural block diagram of a novel transformer respirator according to one embodiment of the present invention;

[0065] Figure 2 is a schematic structural diagram of a novel transformer respirator according to one embodiment of the present invention;

[0066] Figure 3 is a structural block diagram of a novel transformer respirator according to one embodiment of the present invention;

[0067] Figure 4 is a structural block diagram of a novel transformer respirator according to one embodiment of the present invention;

[0068] Figure 5 is a block diagram of a control center according to one embodiment of the present invention;

[0069] Figure 6 is a flowchart of a method for controlling a processor according to one embodiment of the present invention;

[0070] Figure 7 is a flowchart of a method for controlling a processor according to one embodiment of the present invention;

[0071] Figure 8 is a flowchart of a method for controlling a processor according to one embodiment of the present invention; and

[0072] Figure 9 is a flowchart of a method for controlling a processor according to one embodiment of the present invention. DETAILED DESCRIPTION

[0073] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention.

[0074] In the embodiments of the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used to describe the relative positional relationships of components in the directions shown in the drawings or in the vertical, perpendicular or gravity directions.

[0075] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0076] like Figure 1 The figure shows a block diagram of a novel transformer respirator according to an embodiment of the present invention. Figure 1 In the embodiment, the respirator 10 may include a plurality of sensors 01 and a wireless signal generator 02.

[0077] In this embodiment, the sensor 01 and the wireless signal generator 02 are arranged at positions as follows: Figure 2 As shown. Figure 2 In the embodiment, the sensor 01 can be arranged on the inner wall of the respirator 10. The wireless signal generator 02 can be arranged inside the respirator 10 and connected to the sensor 01 via a wireless signal to transmit the output signal strength of the sensor 01 to the outside in real time.

[0078] In this embodiment, sensors 01 are located on the inner wall of the respirator 10 and are wirelessly connected to the wireless signal generator 02. Due to the characteristic of wireless signal output strength attenuating with distance, the output signal strength at the inner wall of the respirator 10 fluctuates within a certain range as the liquid within the transformer fluctuates. Once the wireless signal generator 02 transmits the output signal strength, personnel at the control center can determine whether the inner wall of the respirator 10 has changed by judging the range within which the output signal strength falls, and thus take appropriate action. Ultimately, this respirator 10 achieves the goal of remote monitoring by the control center.

[0079] like Figure 3 The figure shows a block diagram of a novel transformer respirator according to one embodiment of the present invention. Figure 1 The respirator shown in the Figure 3 In the embodiment, the sensor 01 includes a humidity sensor 03. The humidity sensor 03 can be used to obtain the humidity of the silica gel inside the respirator 10. The wireless signal generator 02 can further be used to send the humidity through a wireless wide area network.

[0080] In the prior art, the function of the respirator 10 is to expel excess air from the transformer oil pillow capsule when the transformer expands due to heat. When the transformer oil cools and contracts, it draws in outside air, causing the transformer oil in the oil reservoir to filter the outside air. The silica gel then absorbs any remaining moisture, protecting the transformer oil from the outside air. This keeps the moisture content within the standard range, preventing moisture from entering the transformer and ensuring the transformer's dielectric strength. Under these circumstances, the silica gel within the respirator 10 is susceptible to excessive humidity. In such conditions, the respirator 10 clearly struggles to perform its stated function. To prevent failure of the respirator 10 due to excessive humidity, the prior art employs manual, periodic replacement. This maintenance method is not only costly but also relies on manual experience. Therefore, in this embodiment, a humidity sensor 03 is provided, and a wireless signal generator 02 transmits the real-time humidity data via a wireless wide area network. This allows the control center to remotely monitor the humidity of the silica gel and take timely action.

[0081] Furthermore, in Figure 3 On the basis of the respirator 10 shown, the respirator 10 may further include a heating device 04, such as Figure 4 As shown. The heating device 04 can be disposed inside the respirator 10 and connected to the wireless signal generator 02. The wireless signal generator 02 can further be configured to receive externally transmitted heating instructions and, upon receiving the heating instructions, transmit the heating instructions to the heating device 04. The heating device 04 can then be configured to activate upon receiving the heating instructions to heat the silicone inside the respirator 10.

[0082] In the prior art, after determining the humidity of the silica gel inside the respirator 10, the staff will go to the site to replace the silica gel and heat and evaporate the replaced silica gel to be recycled. Figure 4 In the respirator 10 shown, the heating device 04 is provided inside the respirator 10 to avoid the need for workers to go to the site to replace the silica gel, thereby improving the efficiency of equipment inspection and maintenance.

[0083] On the other hand, the present invention also provides a control center, such as Figure 5 As shown. Figure 5 In the embodiment, the control center may include a wireless signal receiving device 20, a processor 21 and an alarm 22.

[0084] exist Figure 5 In the wireless signal receiving device 20, the wireless signal receiving device 20 can be used to receive external signals such as Figures 1 to 4 The output signal strength of the respirator 10 is shown. The processor 21 can be connected to the wireless signal receiving device 20 for executing the following Figure 6 The method shown in Figure 6 In, the method may include:

[0085] In step S10 , the output signal strength is received.

[0086] In step S11 , the fluctuation range of the output signal strength is determined.

[0087] In step S12, it is determined that the fluctuation range is within a preset first interval;

[0088] In step S13 , when it is determined that the fluctuation range is within the first interval, it is determined that blockage has occurred inside the respirator.

[0089] In respirator 10, sensors 01 are distributed along the inner wall of respirator 10 and are wirelessly connected to wireless signal generator 02. Due to the characteristic that wireless signal output strength attenuates with distance, the output signal strength will fluctuate within a certain range as the liquid within the transformer fluctuates. Therefore, after wireless signal generator 02 transmits the output signal strength, personnel at the control center can determine whether the inner wall of respirator 10 has changed by judging the range within which the output signal strength falls, and thus take appropriate actions (e.g., Figure 6 Finally, the purpose of remote monitoring by the control center is achieved through the respirator 10.

[0090] exist Figure 6 In the illustrated method, since the respirator 10 is a flexible structure, under normal conditions, the sidewalls of the respirator 10 will deform steadily with the liquid within the transformer. Accordingly, the output signal intensity of the sensor 01 will fluctuate within a certain range. However, if a blockage occurs within the respirator 10, the sidewalls of the respirator 10 will temporarily become rigid due to the blockage, resulting in a fixed distance between the sensor 01 and the wireless signal generator 02, reducing the fluctuation range of the output signal intensity. Therefore, in this embodiment, the first interval can be a smaller signal fluctuation interval, and the range point values ​​between specific regions can be determined based on the actual sensor 01 model.

[0091] The alarm 22 may be connected to the processor 21 and configured to be activated to sound an alarm when it is determined that a blockage has occurred inside the respirator 10 .

[0092] In one embodiment of the present invention, the processor may also be used to perform the following Figure 7 The method shown. Figure 7 In, the method may include:

[0093] In step S20, it is determined whether the fluctuation range is within a preset second interval, wherein the range of the second interval is larger than the first interval;

[0094] In step S21 , when it is determined that the fluctuation range is within the second interval, it is determined that the ventilator is normal.

[0095] exist Figure 7 In the method shown, since the respirator 10 is a flexible structure, under normal conditions, the side wall of the respirator 10 will deform steadily with the liquid in the transformer. Correspondingly, the output signal intensity output by the sensor 01 will also fluctuate within a certain range. In addition, in order to distinguish Figure 6 In the first interval shown in , the range of the second interval can be larger than the first interval.

[0096] In one embodiment of the present invention, the processor 21 may also be further configured to execute the following steps: Figure 8 The method shown in Figure 8 In the embodiment of the present invention, the processor 21 can be used to:

[0097] In step S30 , it is determined whether the fluctuation range is within a preset third interval, wherein the range of the third interval is greater than the second interval.

[0098] In step S31 , when it is determined that the fluctuation range is within the third interval, it is determined that the inner wall of the respirator 10 is ruptured.

[0099] exist Figure 8 In the method shown, since the respirator 10 is a flexible structure, under normal conditions, the sidewalls of the respirator 10 will deform steadily with the liquid in the transformer. Correspondingly, the output signal intensity of the sensor 01 will also fluctuate within a certain range. However, when the inner wall of the respirator 10 is broken, the distance between the sensor 01 and the wireless signal generator 02 will change dramatically with the swing of the broken inner wall, causing a dramatic fluctuation in the output signal intensity. Therefore, in Figure 8 When the output signal strength is determined to be within the third interval, it can be determined that the inner wall of the respirator 10 is ruptured.

[0100] The alarm 22 may be further configured to activate and sound an alarm if a rupture is detected inside the respirator 10 .

[0101] In one embodiment of the present invention, the wireless signal receiving device 20 can be further used to receive an external humidity signal. The processor can be further used to execute the following Figure 9 The method shown in Figure 9 In, the method may include:

[0102] In step S40, it is determined whether the humidity is greater than a preset humidity threshold;

[0103] In step S41, if the humidity is greater than the humidity threshold, it is determined that the humidity of the silica gel inside the respirator 10 is too high;

[0104] In step S42, the wireless signal receiving device is controlled to send a heating instruction outward.

[0105] In the prior art, the function of the respirator 10 is to expel excess air from the transformer oil pillow capsule when the transformer expands due to heat. When the transformer oil cools and contracts, it draws in outside air, allowing the transformer oil in the oil reservoir to filter the outside air. The silica gel then absorbs any remaining moisture, protecting the transformer oil from the outside air. This keeps the moisture content within the standard range, preventing moisture from entering the transformer and ensuring the insulation strength of the transformer oil. In this context, the silica gel within the respirator 10 is susceptible to excessive humidity. In such conditions, the respirator 10 clearly struggles to perform its stated functions. To prevent failure of the respirator 10 due to excessive silicone moisture, the prior art employs manual, periodic replacement. This maintenance method is not only costly but also relies on manual experience. Therefore, in this embodiment, if the humidity is determined to be above a threshold, the silica gel within the respirator 10 is determined to be excessively moist, thereby controlling the wireless receiving device to transmit a heating command. This heating command activates the heating device 04 within the respirator 10, thereby maintaining the respirator 10.

[0106] In addition, the alarm 22 can be a variety of alarm prompting devices known to those skilled in the art, including but not limited to buzzers, voice devices, indicator lights, etc. In a preferred example of the present invention, in order to distinguish between alarms of different degrees and to adapt to the need to maintain a quiet and tidy environment at the control center site, the alarm 22 can be indicator lights of different colors. Furthermore, the colors of the indicator lights corresponding to the alarm 22 can also be different for working conditions of different types and severity. For example, under normal conditions, the alarm 22 can be a green indicator light. Under working conditions where the silica gel needs to be heated and dried, the alarm 22 can be a yellow indicator light. In the case where the inner wall of the respirator 10 is broken, since the working conditions at this time are more urgent, the alarm 22 can be a red indicator light.

[0107] In another aspect, the present invention further provides a transformer monitoring system, which may include the respirator and control center described above. The specific workings of the monitoring system have been described in detail above with respect to the respirator and control center, and therefore will not be repeated here.

[0108] Through the above technical solution, the new transformer breather, control center and monitoring system provided by the present invention improve the breather inside the transformer, so that personnel in the control center can remotely obtain the status of the breather in real time, reducing the maintenance cost of the breather and improving the work efficiency of the operation and maintenance personnel.

[0109] The above describes in detail the optional implementation methods of the examples of the present invention in conjunction with the accompanying drawings. However, the implementation methods of the present invention are not limited to the specific details in the above implementation methods. Within the technical concept of the implementation methods of the present invention, various simple modifications can be made to the technical solutions of the implementation methods of the present invention, and these simple modifications all fall within the scope of protection of the implementation methods of the present invention.

[0110] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0111] Those skilled in the art will appreciate that all or part of the steps in the above-described embodiments can be accomplished by instructing related hardware through a program stored in a storage medium, which includes a number of instructions for causing a single-chip microcomputer, chip, or processor to execute all or part of the steps in the methods described in the various embodiments of the present application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0112] In addition, various different embodiments of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.

Claims

1. A transformer monitoring system, characterized in that: The monitoring system includes: Respirator, including: a plurality of sensors disposed on the inner wall of the respirator; a wireless signal generator, disposed inside the respirator and connected to the sensor via a wireless signal, for transmitting the output signal strength of the sensor to the outside in real time; Control Center, including: a wireless signal receiving device, configured to receive the output signal strength; A processor, connected to the wireless signal receiving device, configured to: receiving the output signal strength; determining a fluctuation range of the output signal strength; Determining that the fluctuation range is within a preset first interval; If it is determined that the fluctuation range is within the first interval, determining that blockage occurs inside the respirator; an alarm, connected to the processor, and configured to activate to sound an alarm when it is determined that a blockage occurs inside the respirator; The processor is further configured to: Determining whether the fluctuation range is within a preset second interval, wherein the range of the second interval is larger than the first interval; If it is determined that the fluctuation range is within the second interval, determining that the ventilator is normal; Determining whether the fluctuation range is within a preset third interval, wherein the range of the third interval is greater than the second interval; In the case where it is determined that the fluctuation range is within the third interval, determining that the inner wall of the respirator is ruptured; The alarm is further configured to be activated to sound an alarm if it is determined that a rupture has occurred inside the respirator.

2. The monitoring system according to claim 1, characterized in that The sensor includes a humidity sensor, and the humidity sensor is used to obtain the humidity of the silica gel inside the respirator; The wireless signal generator is further used to send the humidity through a wireless wide area network; The wireless signal receiving device is further used to receive the humidity signal; The processor is further configured to: Determining whether the humidity is greater than a preset humidity threshold; If it is determined that the humidity is greater than the humidity threshold, determining that the humidity of the silica gel inside the respirator is too high; Controlling the wireless signal receiving device to send a heating instruction outward; The respirator further includes a heating device, which is disposed inside the respirator and connected to the wireless signal generator; The wireless signal generator is further configured to receive a heating instruction sent from the outside, and upon receiving the heating instruction, send the heating instruction to the heating device; The heating device is used to start up to heat the silica gel inside the respirator when receiving the heating instruction.

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