Intelligent monitoring terminal of transformer and transformer

Abstract

The utility model discloses an intellectualized monitoring terminal of transformer and transformer, relates to transformer monitoring technical field, the intellectualized monitoring terminal of transformer includes casing, PCB subassembly and a plurality of waterproof joint, the PCB subassembly is provided in the casing, PCB subassembly includes two PCB board, one PCB board is provided with a communication unit, the other PCB board is provided with a plurality of waterproof joint, the waterproof joint is provided with a plurality of waterproof joint. The communication unit comprises an RS485 interface, a DI input interface, an Ethernet port, an optical fiber interface, an HDMI interface, a USB interface and a relay output interface. The other PCB is provided with a signal acquisition unit and a signal processing unit, the signal acquisition unit comprises a voltage monitoring interface, a current monitoring interface, a grounding current interface, an RTD circuit interface and an analog signal input interface, and the signal processing unit is in communication connection with the signal acquisition unit and the communication unit; the waterproof connectors are arranged on the shell at intervals. The intelligent monitoring terminal provided by the utility model can monitor multiple parameters in the operation process of the oil-immersed transformer and the dry-type transformer, and is good in adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer monitoring technical field especially relates to a transformer's intelligent monitoring terminal and transformer. BACKGROUND

[0002] The monitoring terminal of transformer is the key equipment for real time monitoring and management transformer operating state in power system, it through gathering transformer's operating parameter, such as voltage, current, temperature etc., and these data transmission to monitoring system, realizes the real time monitoring and remote management to transformer operating condition, in order to realize the monitoring of transformer's environmental temperature, current voltage etc. parameter, according to the different transformer type, the existing monitoring terminal usually needs to set different monitoring interface, and the same monitoring terminal is difficult to adapt to different types of transformer, and the adaptability is poor. SUMMARY

[0003] The utility model discloses a transformer's intelligent monitoring terminal and transformer, which aims to solve the technical problem of poor adaptability of the same monitoring terminal to different types of transformer in the prior art.

[0004] To achieve the above object, the utility model discloses a transformer's intelligent monitoring terminal includes shell, PCB assembly and a plurality of waterproof joints, the PCB assembly sets up in the shell, the PCB assembly includes two interval arrangement's PCB board, and one of the PCB board is provided with communication unit, and the communication unit includes RS485 interface, DI input interface, ethernet port, optical fiber interface, HDMI interface, USB interface and relay output interface;Another PCB board is provided with signal acquisition unit and signal processing unit, and the signal acquisition unit includes voltage monitoring interface, current monitoring interface, grounding current interface, RTD circuit interface and analog signal input interface, and the signal processing unit is connected with the signal acquisition unit and the communication unit;A plurality of waterproof joints interval arrangement is set up on the shell, and each waterproof joint penetrates the shell, and the voltage monitoring interface, the current monitoring interface, the grounding current interface, the RTD circuit interface and the analog signal input interface are connected to a corresponding set waterproof joint respectively.

[0005] In an embodiment, the PCB board includes a top layer, a bottom layer and two intermediate layer boards, both intermediate layer boards are located between the top layer and the bottom layer, and both intermediate layer boards are ground layers;The communication unit is arranged on the top layer of one of the PCB boards, and the signal acquisition unit and the signal processing unit are arranged on the top layer of the other PCB board.

[0006] In an embodiment, the shell comprises an upper cover and a bottom shell, and the upper cover and the bottom shell are connected by a hinge.

[0007] In an embodiment, an upper flange is arranged at an edge of the upper cover, the upper flange is arranged at a different side of the hinge, a lower flange is arranged at an edge of the bottom shell, the lower flange is arranged below the upper flange, and the upper flange and the lower flange both extend away from the shell, and the upper flange and the lower flange are both provided with bolt holes matched with each other.

[0008] In an embodiment, the lower flange extends along the edge of the bottom shell to the outside of the upper flange to form a mounting portion, and the mounting portion is provided with a mounting hole for bolt connection with a shell of the transformer.

[0009] In an embodiment, the communication unit further comprises a 4G module, a GPS module, a Lora module and a WIFI module, and four rod-shaped antennas are correspondingly arranged on the shell, and the 4G module, the GPS module, the Lora module and the WIFI module are respectively connected to a corresponding rod-shaped antenna.

[0010] In an embodiment, the shell is provided with a terminal state lamp, a communication state lamp and a data alarm lamp, and the terminal state lamp, the communication state lamp and the data alarm lamp are all connected to the data processing unit.

[0011] In an embodiment, the analog signal input interface is a 4-20mA analog interface, and the Ethernet port is an RJ45 interface.

[0012] In an embodiment, the shell is a palladium gold shell, and the surface of the shell is coated with an anti-corrosion layer.

[0013] The utility model further provides a transformer which applies the intelligent monitoring terminal.

[0014] The utility model provides an intelligent monitoring terminal and transformer of transformer, PCB assembly and transformer are separated through the shell to provide protection for PCB assembly, two PCB boards provide firm mounting space for communication unit, signal acquisition unit and signal processing unit. Communication unit passes through integrated RS485 interface, DI input interface, ethernet port, optical fiber interface, HDMI interface, USB interface and relay output interface, makes intelligent monitoring terminal possess multiple communication modes, signal acquisition unit passes through integrated voltage monitoring interface, current monitoring interface, grounding current interface, RTD circuit interface and analog signal input interface, can acquire each analog quantity data in transformer, and carries out processing to analog quantity data to monitor the operation state of transformer. The utility model provides an intelligent monitoring terminal can adapt to multiple external equipment and network environment, can monitor the multiple parameters in the operation process of oil immersed transformer and dry type transformer, and the adaptability is good, and the compatibility is strong. Two PCB boards are arranged in layer spacing, make the analog quantity data of analog signal input interface and other interfaces and the digital quantity data of RS485 interface, DI input interface and other interfaces get away from each other, maximum degree reduces the interference of data transmission process to analog quantity processing, effectively improves the accuracy and security of data transmission. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to the structure shown in these drawings.

[0016] Figure 1 The structure schematic diagram of the embodiment of the intelligent monitoring terminal of transformer provided by the utility model is shown in the figure.

[0017] Figure 2 The partial structure schematic diagram of the embodiment of the intelligent monitoring terminal of transformer provided by the utility model is shown in the figure.

[0018] Figure 3 The structure schematic diagram of the embodiment of the PCB assembly of the intelligent monitoring terminal of transformer provided by the utility model is shown in the figure.

[0019] EXPLANATION OF DRAWINGS:

[0020] 10, housing; 11, upper cover; 111, upper folding edge; 112, bolt hole; 12, bottom shell; 121, lower folding edge; 1211, mounting portion; 1212, mounting hole; 13, waterproof joint; 14, rod-shaped antenna; 15, terminal state lamp; 16, communication state lamp; 17, data alarm lamp; 18, hinge; 20, PCB assembly; 21, PCB board; 22, RS485 interface; 23, DI input interface; 24, Ethernet port; 25, optical fiber interface; 26, HDMI interface; 27, USB interface; 28, relay output interface; 29, voltage monitoring interface; 30, current monitoring interface; 31, grounding current interface; 32, RTD circuit interface; 33, analog signal input interface.

[0021] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0024] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skill in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0025] The description of the directions such as "up", "down", "front", "back", "left" and "right" in the utility model is based on the directions shown in the drawings as the reference, and is only used to explain the relative position relationship between the components in the posture shown in the drawings. Figure 1 If the specific posture is changed, the directional indication also changes accordingly. Figure 1

[0026] In order to realize the monitoring of the environmental temperature, current voltage and other parameters of the transformer, according to the different types of transformers, the existing monitoring terminal usually needs to set different monitoring interfaces, and the same monitoring terminal is difficult to adapt to different types of transformers, and the adaptability is poor.

[0027] The utility model provides a kind of intelligent monitoring terminal of transformer, including shell 10, PCB assembly 20 and multiple waterproof joints 13, PCB assembly 20 is set in shell 10, PCB assembly 20 includes two interval set PCB board 21, one of PCB board 21 is provided with communication unit, and communication unit includes RS485 interface 22, DI input interface 23, Ethernet port 24, optical fiber interface 25, HDMI interface 26, USB interface 27 and relay output interface 28;Another PCB board 21 is provided with signal acquisition unit and signal processing unit, and signal acquisition unit includes voltage monitoring interface 29, current monitoring interface 30, grounding current interface 31, RTD circuit interface 32 and analog signal input interface 33, and signal processing unit is communicated and connected in signal acquisition unit and communication unit;Multiple waterproof joints 13 are interval set on shell 10, and each waterproof joint 13 penetrates shell 10, and voltage monitoring interface 29, current monitoring interface 30, grounding current interface 31, RTD circuit interface 32 and analog signal input interface 33 are respectively connected to one corresponding waterproof joint 13.

[0028] Please refer to Figures 1 to 3 Shell 10 forms accommodating cavity accommodating PCB assembly 20 in, and PCB assembly 20 is fixedly installed in accommodating cavity. Two PCB boards 21 are interval set up and down, and two PCB boards 21 are fixed to each other by multiple screw columns, one of PCB board 21 is interval set up and has RS485 interface 22, DI input interface 23, Ethernet port 24, optical fiber interface 25, HDMI interface 26, USB interface 27 and relay output interface 28, and the other PCB board 21 is interval set up and has voltage monitoring interface 29, current monitoring interface 30, grounding current interface 31, RTD circuit interface 32 and analog signal input interface 33. It can be explained that RS485 interface 22 has four ways, DI input interface 23 has two ways, voltage monitoring interface 29 has three ways, current monitoring interface 30 has three ways, grounding monitoring interface has two ways, RTD circuit interface 32 has eight ways, and analog signal input interface 33 has two ways. ​

[0029] When the intelligent monitoring terminal is installed on the transformer, the RS485 interface 22, the DI input interface 23, the voltage monitoring interface 29, the current monitoring interface 30, the grounding monitoring interface, the RTD circuit interface 32 and the analog signal input interface 33 are respectively connected with the corresponding sensors on the transformer, so as to monitor the environmental temperature and humidity, the partial discharge condition, the single hydrogen and the micro water content of the oil-immersed transformer in the transformer through the four-way RS485 interface 22, monitor the start and stop state and the fault state of the transformer fan through the two-way DI input interface 23, obtain the low-voltage side phase / line voltage, the zero sequence voltage, the phase current, the zero sequence current, the voltage / current phase angle, the three-phase / total active power, the three-phase / total reactive power, the three-phase / total apparent power, the power factor, the voltage deviation, the frequency deviation, the three-phase voltage imbalance, the three-phase current imbalance, the voltage qualified rate, the voltage / current 2-63 harmonic components, the harmonic content rate and the harmonic total distortion rate and other electric parameter data of the transformer in real time through the three-way voltage monitoring interface 29 and the three-way current monitoring interface 30, monitor the grounding currents of the iron core and the clamp through the two-way grounding monitoring interface, monitor the winding and iron core temperature of the dry-type transformer through the eight-way RTD circuit interface 32, and monitor the oil temperature and the oil pressure of the oil-immersed transformer through the two-way analog signal input interface 33. After obtaining each data of the transformer, the signal processing unit processes each data to judge the running state of the transformer, controls the start and stop of the fan through the relay output interface 28, transmits the data to the external display through the HDMI interface 26 and the USB interface 27, realizes the remote communication of the data through the Ethernet port 24 and the optical fiber interface 25, and can perform local debugging through the Ethernet port 24.

[0030] The utility model provides an intelligent monitoring terminal of transformer, PCB assembly 20 is separated with transformer through shell 10 to provide protection for PCB assembly 20, and two PCB boards 21 provide firm mounting space for communication unit, signal acquisition unit and signal processing unit. Communication unit passes through integrated RS485 interface 22, DI input interface 23, ethernet port 24, optical fiber interface 25, HDMI interface 26, USB interface 27 and relay output interface 28, make intelligent monitoring terminal possess multiple communication modes, signal acquisition unit passes through integrated voltage monitoring interface 29, current monitoring interface 30, grounding current interface 31, RTD circuit interface 32 and analog signal input interface 33, can obtain each analog quantity data in transformer, and handle analog quantity data to monitor the operation state of transformer. The utility model provides an intelligent monitoring terminal can adapt to multiple external equipment and network environment, can monitor oil-immersed transformer and dry-type transformer operation process multiple parameters, and the adaptability is good, and the compatibility is strong. Two PCB boards 21 are arranged in layer spacing, make the analog quantity data of analog signal input interface 33 and so on interface acquisition and the digital quantity data of RS485 interface 22, DI input interface 23 and so on interface acquisition mutually far away, maximum degree reduces the interference of data transmission process to analog quantity processing, effectively improves the accuracy and security of data transmission.

[0031] In an embodiment, the PCB board 21 includes a top layer, a bottom layer, and two intermediate layers, the two intermediate layers are located between the top layer and the bottom layer, and the two intermediate layers are both ground layers; the communication unit is arranged on the top layer of one of the PCB boards 21, and the signal acquisition unit and the signal processing unit are arranged on the top layer of the other PCB board 21.

[0032] It should be noted that the PCB board 21 is a four-layer board, and two middle layers are located between the top layer and the bottom layer. The four-layer board is stacked to help dissipate heat inside the PCB board 21 and improve heat dissipation effect. The two middle layers are designed as ground layers to provide good electrical isolation and shielding effect, reduce signal interference, and ensure the stability and reliability of signal transmission. The communication unit is arranged on the top layer of one of the PCB boards 21, which is convenient for connecting with external communication equipment. The communication unit integrates multiple interfaces, including RS485 interface 22, DI input interface 23, Ethernet interface 24, optical fiber interface 25, HDMI interface 26, USB interface 27 and relay output interface 28, so that the monitoring terminal can communicate with multiple external devices to meet the communication needs in different scenarios. The signal acquisition unit and the signal processing unit are arranged on the top layer of the other PCB board 21. The signal acquisition unit is responsible for collecting various parameters of the transformer, such as voltage and current, while the signal processing unit processes and analyzes the received signals to determine the running state of the transformer. Arranging the signal acquisition unit and the signal processing unit on the top layer of the same PCB board 21 helps to improve the efficiency and accuracy of signal processing, and is also convenient for maintenance and upgrading. Through this design, the PCB assembly 20 can achieve high integration in a limited space while ensuring the independence and functionality between each unit. The top layer is conducive to fast signal transmission and processing, and the middle layer as a ground layer provides good electrical isolation to ensure the stability of the signal and the reliability of the monitoring terminal.

[0033] In an embodiment, the housing 10 includes an upper cover 11 and a bottom shell 12, and the upper cover 11 and the bottom shell 12 are connected by a hinge 18. The upper cover 11 is rotatably connected to the bottom shell 12 by the hinge 18, so that the housing 10 can be rotated by 180° relative to the bottom shell 12, thereby realizing the opening or closing of the upper cover 11, and facilitating the maintenance and maintenance of the PCB assembly 20 in the housing 10.

[0034] In an embodiment, the edge of the upper cover 11 is provided with an upper folding edge 111, and the upper folding edge 111 is located on different sides of the hinge 18 of the upper cover 11. The edge of the bottom shell 12 is provided with a lower folding edge 121, which is arranged below the upper folding edge 111, and the upper folding edge 111 and the lower folding edge 121 both extend away from the housing 10. The upper folding edge 111 and the lower folding edge 121 are both provided with bolt holes 112 matched with each other.

[0035] Please refer to Figure 1When the upper cover 11 is in the closed state, the upper folding edge 111 and the lower folding edge 121 are close to each other, the bolt hole 112 on the upper folding edge 111 is aligned with the bolt hole 112 of the lower folding edge 121, so as to fasten the upper folding edge 111 and the lower folding edge 121 by bolts, and realize the fastening connection of the upper cover 11 and the bottom shell 12; by removing the bolts from the upper folding edge 111 and the lower folding edge 121, the opening of the upper cover 11 can be realized. It can be explained that, in addition to the side provided with the hinge 18, the upper cover 11 is provided with a plurality of upper folding edges 111, and the bottom shell is correspondingly provided with a plurality of lower folding edges 121, and the bolt hole 112 of each upper folding edge 111 is matched with the bolt hole 112 of the corresponding lower folding edge 121, so as to facilitate the detachable connection of the upper cover 11 and the bottom shell.

[0036] In an embodiment, the lower folding edge 121 extends along the edge of the bottom shell 12 to the outside of the upper folding edge 111 to form a mounting portion 1211, and the mounting portion 1211 is provided with a mounting hole 1212 for bolt connection with the shell of the transformer.

[0037] Please continue to refer to Figure 1 , the lower folding edge 121 and the upper folding edge 111 are horizontally arranged, the length of the lower folding edge 121 in the front-rear direction is greater than the length of the upper folding edge 111 in the front-rear direction, the position of the lower folding edge 121 extending out of the upper folding edge 111 in the front-rear direction forms a mounting portion 1211, and the mounting hole 1212 is provided with a mounting hole 1212. By aligning the two lower folding edges 121 on the left and right sides of the monitoring terminal with the two sides of the transformer shell respectively, and bolt connecting the mounting holes 1212 of the two lower folding edges 121 with the two sides of the transformer shell, the connection space provided by the lower folding edge 121 is used to make the monitoring terminal can be embedded on the metal shell 10 of the dry-type transformer, and can also be fastened to the oil-immersed transformer, effectively improving the applicability of the monitoring terminal.

[0038] In an embodiment, the communication unit further includes a 4G module, a GPS module, a Lora module and a WIFI module, and four rod-shaped antennas 14 are correspondingly arranged on the shell 10, and the 4G module, the GPS module, the Lora module and the WIFI module are respectively connected to a corresponding rod-shaped antenna 14.

[0039] It should be noted that the four rod-shaped antennas 14 are arranged at the side edges of the base, and each rod-shaped antenna 14 penetrates the side wall of the base and extends outward, and the rod-shaped antennas 14 are arranged at intervals with the lower folding edge 121, so that when the monitoring terminal is bolted to the dry-type transformer through the mounting hole 1212 of the mounting portion 1211, the rod-shaped antennas 14 do not interfere with the shell of the dry-type transformer, so that the monitoring terminal can adapt to the structure of the dry-type transformer. The rod-shaped antennas 14 lead out the communication signals corresponding to the communication unit and transmit them to the outside, which ensures that the signal transmission is not shielded by the shell 10 and also takes into account the convenience of operation and maintenance, and ensures that the monitoring terminal maintains good communication performance in various environments.

[0040] In an embodiment, the shell 10 is arranged at intervals with a terminal state lamp 15, a communication state lamp 16 and a data alarm lamp 17, and the terminal state lamp 15, the communication state lamp 16 and the data alarm lamp 17 are all communicatively connected to the data processing unit.

[0041] It can be understood that the terminal state lamp 15 is used to indicate the power state and operating state of the monitoring terminal, the communication state lamp 16 is used to indicate the communication state of the monitoring terminal, and the data alarm lamp 17 is used to indicate the abnormal data or alarm condition detected by the monitoring terminal, so as to facilitate the operator to quickly identify the working state of the monitoring terminal and timely discover and handle potential problems, thereby improving the availability and maintenance efficiency of the monitoring terminal.

[0042] In an embodiment, the analog signal input interface 33 is a 4-20mA analog interface, and the Ethernet port 24 is an RJ45 interface.

[0043] It can be understood that the 4-20mA analog interface is used to connect with the sensor arranged on the transformer and can receive analog signals from various sensors; the RJ45 interface is suitable for connection of local area network and wide area network and can realize remote transmission and reception of data, and through the design of the two interfaces, the monitoring terminal can process analog signals and perform network communication at the same time, thereby enhancing the function and flexibility of the monitoring terminal.

[0044] In an embodiment, the shell 10 is a palladium gold shell 10, and the surface of the shell 10 is coated with a corrosion-resistant layer.

[0045] It should be noted that the shell 10 is made of palladium gold material, which has corrosion resistance, high temperature resistance and good chemical stability, can effectively resist various harsh environmental conditions, and provides a safe and stable setting environment for the PCB assembly 20. The surface of the shell 10 is also coated with a corrosion-resistant layer, which not only forms a protective barrier to prevent external corrosive media from directly contacting the palladium gold shell 10, but also reduces wear and tear on the surface of the shell 10, maintaining the integrity and aesthetics of the shell 10. It should be noted that the waterproof joint 13 is a gland, and various sensors provided on the transformer are connected to the device through the waterproof gland. The gland is designed to be sealed and meets the IP65 protection level, ensuring the reliability of the terminal in harsh environments. The inside of the shell 10 is lined with a waterproof rubber mat to ensure that the monitoring terminal can still work normally in a humid or waterlogged environment, preventing water from entering the internal circuit.

[0046] The utility model discloses still propose a kind of transformer, the intelligent monitoring terminal of above-mentioned application has, the specific structure of the intelligent monitoring terminal refers to above-mentioned embodiment, since the transformer of the present application adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaboration. Among them, the two PCB boards 21 of intelligent monitoring terminal are used to transmit analog quantity data and digital quantity data in transformer, and the two PCB boards 21 are arranged in layers with interval, so that the analog quantity and digital quantity of data are far away from each other, the interference of transmission process to analog quantity processing is reduced to the greatest extent, and the accuracy and security of data transmission are effectively improved.

[0047] The above-mentioned is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure transformation made by using the utility model specification and drawing contents, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. An intelligent monitoring terminal for a transformer, characterized in that, include: shell; A PCB assembly is disposed within the housing. The PCB assembly includes two spaced-apart PCB boards. One PCB board has a communication unit, which includes an RS485 interface, a DI input interface, an Ethernet port, an optical fiber interface, an HDMI interface, a USB interface, and a relay output interface. The other PCB board has a signal acquisition unit and a signal processing unit. The signal acquisition unit includes a voltage monitoring interface, a current monitoring interface, a ground current interface, an RTD circuit interface, and an analog signal input interface. The signal processing unit is communicatively connected to the signal acquisition unit and the communication unit. Multiple waterproof connectors are spaced apart on the housing, and each waterproof connector penetrates the housing. The voltage monitoring interface, the current monitoring interface, the grounding current interface, the RTD circuit interface, and the analog signal input interface are each connected to a corresponding waterproof connector.

2. The intelligent monitoring terminal for transformers as described in claim 1, characterized in that, The PCB board includes a top layer board, a bottom layer board, and two intermediate layer boards. The two intermediate layer boards are located between the top layer board and the bottom layer board, and both intermediate layer boards are ground planes. The communication unit is disposed on the top layer board of one of the PCB boards, and the signal acquisition unit and the signal processing unit are disposed on the top layer board of the other PCB board.

3. The intelligent monitoring terminal for transformers as described in claim 1, characterized in that, The outer casing includes an upper cover and a bottom cover, which are connected by a hinge.

4. The intelligent monitoring terminal for transformers as described in claim 3, characterized in that, The upper cover has an upper folded edge, which is located on a different side of the upper cover from the hinge. The bottom shell has a lower folded edge, which is located below the upper folded edge. Both the upper and lower folded edges extend away from the outer shell. Both the upper and lower folded edges have matching bolt holes.

5. The intelligent monitoring terminal for transformers as described in claim 4, characterized in that, The lower folded edge extends along the edge of the bottom shell to the outside of the upper folded edge to form a mounting portion, the mounting portion having mounting holes for bolt connection with the housing of the transformer.

6. The intelligent monitoring terminal for a transformer as described in any one of claims 1 to 5, characterized in that, The communication unit also includes a 4G module, a GPS module, a LoRa module, and a WIFI module. Four rod-shaped antennas are correspondingly arranged on the outer casing. The 4G module, the GPS module, the LoRa module, and the WIFI module are each communicatively connected to a corresponding rod-shaped antenna.

7. The intelligent monitoring terminal for a transformer as described in any one of claims 1 to 5, characterized in that, The outer casing is provided with a terminal status light, a communication status light, and a data alarm light at intervals. The terminal status light, the communication status light, and the data alarm light are all communicatively connected to the data processing unit.

8. The intelligent monitoring terminal for the transformer as described in any one of claims 1 to 5, characterized in that, The analog signal input interface is a 4-20mA analog input interface, and the Ethernet port is an RJ45 interface.

9. The intelligent monitoring terminal for a transformer as described in any one of claims 1 to 5, characterized in that, The outer casing is made of palladium and has an anti-corrosion coating on its surface.

10. A transformer, characterized in that, The application uses an intelligent monitoring terminal as described in any one of claims 1 to 9.

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