Acquisition terminal and transformer detection device for electric energy meter

Abstract

The invention discloses an acquisition terminal and electric energy meter transformer detection device, which comprises a detection assembly and a connection assembly, and is characterized in that the detection assembly is connected with one end of the connection assembly, the other end of the connection assembly is detachably connected with the working end of a to-be-detected transformer, and the detection assembly comprises an adjustable resistance module, a first ammeter and a first voltmeter; the detection assembly is used for detecting the voltage and current of the transformer to be detected by adjusting the resistance value of the adjustable resistance module. By adopting the embodiment of the invention, the to-be-detected transformer can be conveniently and quickly connected, and accurate detection can still be realized by adjusting the adjustable resistor module under the condition that the load current of the to-be-detected transformer is too large or too small, so that the detection efficiency of the transformer is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer detection, and in particular to a transformer detection device for a data acquisition terminal and an electric energy meter. Background Art

[0002] Transformer testing usually uses a test fixture to connect the transformer and then pass current to perform various tests. Existing transformer test fixtures usually require the test interface to be welded to each test socket of the transformer to test the transformer.

[0003] However, this method has low detection efficiency and high labor intensity, and is only suitable for spot checks. At the same time, when the load current of the transformer is very large or very small, the existing test fixture needs to adjust the circuit according to different situations, and it is impossible to accurately detect the transformer in both situations at the same time, which further affects the detection efficiency.

[0004] Therefore, how to effectively improve the detection efficiency of transformer test fixtures is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The main purpose of the present invention is to provide a data acquisition terminal and a transformer detection device for an electric energy meter, so as to solve the technical problem of low detection efficiency of the existing transformer test fixture.

[0006] The embodiment of the present invention provides a collection terminal and a transformer detection device for an electric energy meter, including: a detection component and a connection component;

[0007] The detection component is connected to one end of the connection component, and the other end of the connection component is detachably connected to the working end of the transformer to be detected;

[0008] The detection component includes an adjustable resistance module, a first ammeter and a first voltmeter. The detection component is used to detect the voltage and current of the transformer to be detected by adjusting the resistance value of the adjustable resistance module.

[0009] In some embodiments, the adjustable resistance module further includes a lever switch, a first adjustable resistance unit, and a second adjustable resistance unit connected in series in sequence;

[0010] The adjustable resistance module is connected in series with the first ammeter, and the first voltmeter is connected to two outer ends of the adjustable resistance module and the first ammeter as a whole.

[0011] In some embodiments, the lever switch includes three gears, and the first adjustable resistance unit includes a first circuit with a fixed resistance setting and a second circuit without a component setting;

[0012] The first gear of the toggle switch is connected to one end of the first circuit, the second gear is connected to one end of the second circuit, and the third gear is an open gear that is not connected to the first circuit and the second circuit. The other ends of the first circuit and the second circuit are respectively connected to the second adjustable resistance unit.

[0013] In some embodiments, the resistance value of the fixed resistor includes a cement resistor of 200 ohms, and the second adjustable resistance unit includes an adjustable resistor adjustable from 0 to 1000 ohms.

[0014] In some embodiments, the acquisition terminal and the transformer detection device for the electric energy meter further include a circuit monitoring component;

[0015] The circuit monitoring component is connected to the power supply circuit of the transformer to be detected through the connection component;

[0016] The circuit monitoring component includes a second ammeter, a second voltmeter and a voltage regulator. The circuit monitoring component is used to monitor the current and voltage of the power supply circuit of the transformer to be detected, and adjust the voltage regulator according to the current and voltage of the power supply circuit to stabilize the load voltage of the transformer to be detected.

[0017] In some embodiments, the circuit monitoring component further includes a first switch and an alarm;

[0018] The first switch is used to connect and disconnect the connection between the power supply circuit and the voltage regulator. The alarm is used to give an alarm reminder when the values collected by the second ammeter and the second voltmeter exceed a preset threshold, and the preset threshold is the current value and voltage value of the transformer to be detected in the normal working state.

[0019] In some embodiments, the acquisition terminal and the transformer detection device for the electric energy meter further include a common pin module, and the common pin module is connected to the power supply circuit;

[0020] The common pin module includes a common pin socket and a second switch, and the common pin socket is connected to the power supply circuit through the second switch.

[0021] In some embodiments, the second switch includes a circular self-locking switch.

[0022] In some embodiments, the connection component includes a detachable clip.

[0023] In some embodiments, the transformer monitoring device further includes a fixing component, and the fixing component is used to fix the transformer to be detected.

[0024] An embodiment of the present invention provides a collection terminal and a transformer detection device for an electric energy meter. Through the detachable connection between the connection component and the transformer to be detected, the transformer to be detected can be connected conveniently and quickly. When the load current of the transformer to be detected is too large or too small, the precise detection of the transformer can be realized by adjusting the adjustable resistance module, effectively improving the detection efficiency of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0026] In the drawings:

[0027] Figure 1 is a schematic circuit diagram of a collection terminal and a transformer detection device for an electric energy meter provided by an embodiment of the present invention;

[0028] Figure 2 is a schematic circuit diagram of the power supply part of the digital display meter head provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] It should be understood that the various steps recorded in the method embodiments of the present disclosure can be executed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this regard.

[0031] As used herein, the term "including" and its variants are open-ended, that is, "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0032] In the embodiment of the present invention, a test fixture is usually used for transformer detection. After the transformer is connected, current is passed through for various detections. The existing transformer test fixtures usually need to weld the test interfaces to the respective test sockets of the transformer to test the transformer.

[0033] However, this method has low detection efficiency and high labor intensity, and is only suitable for spot checks. At the same time, when the load current of the transformer is very large or very small, the existing test fixture needs to adjust the circuit according to different situations, and it is impossible to accurately detect the transformer in both situations at the same time, which further affects the detection efficiency.

[0034] Therefore, how to effectively improve the detection efficiency of transformer test fixtures is a technical problem that needs to be solved urgently.

[0035] In order to solve the technical problems existing in the related art, the embodiment of the present invention provides a collection terminal and a transformer detection device for an electric energy meter, see Figure 1 , Figure 1 Schematic diagram of a circuit structure of a collection terminal and a transformer detection device for an electric energy meter provided by an embodiment of the present invention. Figure 1 As shown, the acquisition terminal and the transformer detection device for the electric energy meter provided by the embodiment of the present invention include: a detection component and a connection component;

[0036] Among them, the detection component is connected to one end of the connecting component, and the other end of the connecting component is detachably connected to the working end of the transformer to be detected; the detection component includes an adjustable resistance module, a first ammeter and a first voltmeter, and the detection component is used to detect the voltage and current of the transformer to be detected by adjusting the resistance value of the adjustable resistance module.

[0037] The monitoring component provided in this embodiment can detect the no-load input current and voltage, no-load output current and voltage, and load output current and voltage of the transformer to be detected. At the same time, the connection component provided in this embodiment has high compatibility and can adapt to the connection of transformers of different specifications, such as transformers with unfixed pin positions and spacing.

[0038] It should be noted that the collection terminal and the transformer detection device for the electric energy meter provided in this embodiment can be integrated in the collection terminal and the electric energy meter, so that the collection terminal and the electric energy meter integrated with the collection terminal and the transformer detection device for the electric energy meter provided in this embodiment can realize efficient and accurate detection of the transformer, significantly improve the detection efficiency, reduce labor intensity, and are suitable for large-scale production and quality control.

[0039] Specifically, the acquisition terminal is mainly used for real-time acquisition of data of the electric energy meter (such as voltage, current, power, etc.), and transmits these data to the concentrator through communication methods such as RS-485 and power line carrier, so that the concentrator can upload the data to the power system center; the electric energy meter is mainly used for accurately measuring the consumption of electric energy, providing accurate power consumption data, and sending the measured power consumption data to the acquisition terminal. Among them, the acquisition terminal and the electric energy meter can be two separately set devices, or integrated into a single device, that is, each acquisition terminal can be set without integrating an electric energy meter, or can integrate one or more electric energy meters.

[0040] Both the acquisition terminal and the electric energy meter can realize real-time data interaction with the power system center through the built-in communication module, so as to be able to upload the detection data detected by the acquisition terminal and the electric energy meter transformer detection device provided in this embodiment to the power system center in real time, ensuring the accurate monitoring of the operation status of the transformer by the power system center, and improving the overall operation efficiency and safety of the system. Through the real-time data interaction between the acquisition terminal and the electric energy meter integrated with the transformer detection device and the power system center, the power system center can quickly identify transformer anomalies, perform maintenance in a timely manner, avoid the expansion of faults, and ensure the stable power supply. Through this efficient monitoring system, the power system center can not only grasp the working status of the transformer in real time, but also accurately predict potential risks, deploy countermeasures in advance, and ensure the power supply under high-load scenarios without fail. At the same time, the power system center can also generate a detailed data analysis report, providing a strong basis for subsequent equipment optimization and emergency plan formulation, and further improving the intelligent management level of the power system.

[0041] In this embodiment, the types of transformers to be detected can include various types of transformers, such as single-phase transformers, two-phase transformers, three-phase transformers, etc. The connection component includes at least two plugs, and each plug corresponds to a working end on the transformer, that is, a test socket. Through the detachable connection between the plug and the test socket, rapid connection and disconnection can be achieved, thus greatly improving the detection efficiency.

[0042] In order to meet the detection requirements under different load conditions, the transformer detection device for the acquisition terminal and the electric energy meter provided in the embodiment of the present invention may also include an adjustable resistance module, so as to be able to adjust the resistance value of the adjustable resistance module according to different load currents, ensuring accurate detection under various current conditions. In this way, the detection process not only improves the efficiency, but also reduces the labor cost and ensures the accuracy of the detection.

[0043] To further improve the detection efficiency of transformer detection, the detection component provided in this embodiment may further include a control unit, which can be connected to the adjustable resistor module and is used to automatically adjust the resistance value. Through this control unit, users can set detection parameters and obtain real-time feedback to ensure that the detection process is both fast and accurate. Through the automatic adjustment of the control unit, users can flexibly respond to different test requirements, such as fluctuations in load current, without frequently manually adjusting the test fixture.

[0044] Specifically, the connection component provided in this embodiment may include a detachable clip. The connection component is respectively connected to the transformer to be detected and the detection component through the detachable clip, so as to achieve a stable connection between the acquisition terminal and the transformer detection device for the electric energy meter and the transformer to be detected, improve the connection efficiency between the two, and avoid using the welding means in the related art to achieve the connection. In addition, the clip is designed to be adjustable in size to adapt to the interfaces of transformers of different sizes, ensuring the reliability of the connection.

[0045] As an optional embodiment, the number of detection components provided in this embodiment may correspond to the number of types of transformers to be detected. For example, for the detection of three-phase transformers, the number of detection components can be designed to be three, which are respectively used to measure the voltages and currents of the three phases, so as to be able to manage these three detection components simultaneously, ensure that the tests of each phase are synchronized, and thus greatly reduce the test time. In addition, the integration of the control unit can also make the detection process more intelligent, be able to automatically record test data, and generate detailed test reports for subsequent analysis and maintenance.

[0046] To enhance the convenience of operation of the transformer detection device for the acquisition terminal and the electric energy meter provided in this embodiment, the transformer detection device for the acquisition terminal and the electric energy meter provided in this embodiment may also be equipped with a display terminal, which can be connected to the control unit in the detection component and is used to display data such as voltage and current in real time. The display terminal has a friendly user interface and can clearly display the detection results and historical data, enabling the operator to easily set detection parameters and perform operations. In addition, the detection results can be transmitted to the central management system by wired or wireless means, facilitating remote monitoring and analysis by technicians and further improving the overall work efficiency.

[0047] To achieve precise detection under various current conditions, the adjustable resistor module provided in this embodiment further includes a toggle switch, a first adjustable resistor unit, and a second adjustable resistor unit connected in series in sequence; the adjustable resistor module is connected in series with the first ammeter, and the first voltmeter is connected to the outer ends of the whole of the adjustable resistor module and the first ammeter. Among them, the toggle switch is used to quickly select different resistance ranges, while the first and second adjustable resistor units provide a finely adjustable function to ensure detection accuracy. Such a design is not only applicable to conventional test scenarios but also capable of handling precise measurements under extreme or special conditions. The first and second adjustable resistor units are made of precision resistor materials and can withstand high voltages and large currents, ensuring stable performance under extreme working conditions. At the same time, the setting of the toggle switch simplifies the process of selecting the resistance value, enabling the operator to quickly switch to the required test range. The first and second adjustable resistor units, through a precise stepping mechanism, make the adjustment of the resistance value more delicate, meeting the professional detection requirements with strict precision requirements. The acquisition terminal and the transformer detection device for the watt-hour meter integrating these functions not only optimize the detection process but also improve the reliability and efficiency of the transformer performance evaluation.

[0048] Specifically, the toggle switch provided in this embodiment may include 3 gears. The first adjustable resistor unit includes a first circuit with a fixed resistor set and a second circuit without components. The first gear of the toggle switch is connected to one end of the first circuit, the second gear is connected to one end of the second circuit, and the third gear is a disconnection gear that is not connected to the first circuit and the second circuit. The other ends of the first circuit and the second circuit are respectively connected to the second adjustable resistor unit. Through such a design, the operator can flexibly select an appropriate resistance range according to the actual situation of the transformer. In addition, the fixed resistor setting of the first adjustable resistor unit ensures that a stable current value can be quickly obtained in basic tests, while the second circuit without components provides more customized detection operations for users, enhancing the applicability and accuracy of the detection. In this way, during the transformer detection process, the operator can adjust the resistance value according to the real-time feedback to achieve the optimal detection effect. At the same time, this design also allows technicians to dynamically adjust the current and voltage at different test stages, ensuring the flexibility and efficiency of the detection process.

[0049] Optionally, the resistance value of the fixed resistor provided in this embodiment may include a cement resistor of 200 ohms, and the second adjustable resistor unit may include an adjustable resistor adjustable from 0 to 1000 ohms. Such a configuration not only ensures flexibility in different test stages but also guarantees the stability and repeatability of measurement data. Through fine adjustment, the operator can easily obtain the performance data of the transformer under various load conditions, providing solid data support for the performance evaluation and optimization of the transformer.

[0050] In some embodiments, the acquisition terminal and the transformer detection device for the electric energy meter provided in this embodiment may further include a circuit monitoring component; the circuit monitoring component is connected to the power supply circuit of the transformer to be detected through the connection component; the circuit monitoring component includes a second ammeter, a second voltmeter, and a voltage regulator, and the circuit monitoring component is used to monitor the current and voltage of the power supply circuit of the transformer to be detected and adjust the voltage regulator according to the current and voltage of the power supply circuit to stabilize the load voltage of the transformer to be detected. Specifically, the voltage regulator may be a 450V voltage regulator, and the circuit monitoring component is respectively connected to the input end and the output end of the power supply circuit of the transformer to be detected, ensuring real-time monitoring of the working state of the entire transformer. With such a configuration, the circuit monitoring component can immediately detect abnormal situations and make adjustments during the detection process, thereby avoiding possible equipment damage and extending the service life of the transformer.

[0051] Specifically, the circuit monitoring component may further include a first switch, an alarm, and a fuse; the first switch is used to connect and disconnect the connection between the power supply circuit and the voltage regulator, the alarm is used to issue an alarm reminder when the values collected by the second ammeter and the second voltmeter exceed a preset threshold, and the preset threshold is the current value and voltage value of the transformer to be detected in the normal working state. In addition, the alarm of the circuit monitoring component may also be equipped with a remote notification function, which can be synchronized with the mobile device or the control center of the operator to ensure an immediate response in any abnormal situation. This design further improves the safety and reliability of transformer detection and reduces the risks that may be caused by delayed response.

[0052] In this embodiment, the first switch may be a boat switch; the first ammeter, the second ammeter, the first voltmeter, and the second voltmeter provided in this embodiment may be four-and-a-half-digit digital display AC ammeters and voltmeters, and the digital display heads of the ammeter and the voltmeter may be powered by 5V DC and separately powered by 18650 batteries, which will not interfere with the meter head. Specifically, please refer to Figure 2 , Figure 2It is a circuit schematic diagram of the power supply part of the digital display meter head provided by an embodiment of the present invention. The circuit of the power supply part of the digital display meter head provided by this embodiment can use 8 18650 batteries as the power source and 8 reverse protection diodes for protection. After each battery is connected in series through the reverse diode, it ensures the stable operation of the circuit. In addition, it can also include a double 8-control toggle switch and 8 5V boost modules, so that the voltage of the digital display meter head is stably output, improving the overall anti-interference ability of the detection device.

[0053] In some embodiments, since the number of working ends set by transformers of the same type may be different. For example, a three-phase transformer can have 8 test sockets or 7 test sockets (the 8th socket is the same as the socket set at the power input end of the transformer, that is, 2 working ends share one test socket). In order to connect 7 test sockets, usually one plug in the connection component connected to the detection component and another plug in the connection component connected to the circuit monitoring component need to be simultaneously connected to a test socket of the transformer to be tested. However, the size of the test socket of the transformer is often set very small, and this situation is likely to cause the two plugs to be accidentally touched, resulting in a short circuit.

[0054] To solve this technical problem, please continue to refer to Figure 1 , the acquisition terminal and the transformer detection device for the electric energy meter provided by this embodiment can also include a common pin module, and the common pin module is connected to the power supply loop; the common pin module includes a common pin socket and a second switch, and the common pin socket is connected to the power supply loop through the second switch. In this way, when the transformer has an odd number of test sockets, that is, when one working end of the transformer to be detected shares one test socket with another working end, the common pin module can provide an additional test socket for the transformer to be detected for connection, avoiding the two plugs being inserted into the same test socket at the same time, thereby reducing the risk of short circuit. The design of this common pin module ensures the safety and accuracy of the transformer during voltage and current detection, enables each working end to have an independent test socket for connection, avoids equipment failures caused by improper connection, simplifies the detection process, and improves the detection efficiency.

[0055] Specifically, the second switch provided by this embodiment can include a circular self-locking switch. The circular self-locking switch can ensure that the state will not be changed due to accidental touch during operation, ensuring the stability and safety of the connection of the common pin module. Through precise control, when the second switch connects to the test socket, it can automatically lock in the correct position, avoiding failures caused by improper operation, making the entire test process safer and more efficient.

[0056] As an optional embodiment, the transformer monitoring device provided in this embodiment may further include a fixing component, which is used to fix the transformer to be detected to ensure the stable position of the transformer during the detection process and prevent detection errors caused by movement or vibration. The fixing component can be a metal clamp or other types of stabilizing devices, which are closely combined with specific parts of the transformer to ensure that the device will not change its initial set state due to external factors during the detection.

[0057] In summary, the embodiment of the present invention provides a collection terminal and a transformer detection device for an electric energy meter, including a detection component and a connection component. The detection component is connected to one end of the connection component, and the other end of the connection component is detachably connected to the working end of the transformer to be detected. The detection component includes an adjustable resistance module, a first ammeter, and a first voltmeter. The detection component is used to detect the voltage and current of the transformer to be detected by adjusting the resistance value of the adjustable resistance module. By adopting the embodiment of the present invention, it is possible to conveniently and quickly connect the transformer to be detected, and still be able to accurately detect by adjusting the adjustable resistance module when the load current of the transformer to be detected is too large or too small, effectively improving the detection efficiency of the transformer.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0059] In addition, it should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0060] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present invention, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, in the embodiments of the present invention, "a plurality" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0061] The above has introduced in detail a collection terminal and a transformer detection device for an electric energy meter provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application. Moreover, for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A transformer detection device for a collection terminal and an electric energy meter, characterized in that: include: Detection components and connection components; The detection component is connected to one end of the connection component, and the other end of the connection component is detachably connected to the working end of the transformer to be detected; The detection component includes an adjustable resistance module, a first ammeter and a first voltmeter. The detection component is used to detect the voltage and current of the transformer to be detected by adjusting the resistance value of the adjustable resistance module.

2. The data acquisition terminal and transformer detection device for electric energy meter according to claim 1, characterized in that: The adjustable resistance module further includes a lever switch, a first adjustable resistance unit, and a second adjustable resistance unit which are sequentially connected in series; The adjustable resistance module is connected in series with the first ammeter, and the first voltmeter is connected to two outer ends of the adjustable resistance module and the first ammeter as a whole.

3. The data acquisition terminal and transformer detection device for electric energy meter according to claim 2, characterized in that: The lever switch includes three gears, and the first adjustable resistance unit includes a first circuit with a fixed resistance setting and a second circuit without component settings; The first gear position of the lever switch is connected to one end of the first circuit, the second gear position is connected to one end of the second circuit, and the third gear position is a disconnection gear position that is not connected to the first circuit and the second circuit. The other ends of the first circuit and the second circuit are respectively connected to the second adjustable resistance unit.

4. The data acquisition terminal and transformer detection device for electric energy meter according to claim 3, characterized in that: The resistance value of the fixed resistor includes a 200 ohm cement resistor, and the second adjustable resistor unit includes an adjustable resistor adjustable from 0 to 1000 ohms.

5. The data acquisition terminal and transformer detection device for electric energy meter according to claim 1, characterized in that: The acquisition terminal and the transformer detection device for the electric energy meter also include a circuit monitoring component; The circuit monitoring component is connected to the power supply circuit of the transformer to be detected through the connecting component; The circuit monitoring component includes a second ammeter, a second voltmeter and a voltage regulator. The circuit monitoring component is used to monitor the current and voltage of the power supply circuit of the transformer to be tested, and adjust the voltage regulator according to the current and voltage of the power supply circuit to stabilize the load voltage of the transformer to be tested.

6. The data acquisition terminal and transformer detection device for electric energy meter according to claim 5, characterized in that: The circuit monitoring assembly also includes a first switch and an alarm; The first switch is used to connect and disconnect the power supply circuit and the voltage regulator, and the alarm is used to issue an alarm reminder when the values ​​collected by the second ammeter and the second voltmeter exceed preset thresholds. The preset thresholds are the current value and voltage value of the transformer to be tested under normal working conditions.

7. The data acquisition terminal and transformer detection device for electric energy meter according to claim 5, characterized in that: The acquisition terminal and the transformer detection device for the electric energy meter further include a common foot module, and the common foot module is connected to the power supply circuit; The common pin module includes a common pin socket and a second switch, and the common pin socket is connected to the power supply circuit through the second switch.

8. The data acquisition terminal and transformer detection device for electric energy meter according to claim 7, characterized in that: The second switch comprises a circular self-locking switch.

9. The data acquisition terminal and transformer detection device for electric energy meter according to claim 1, characterized in that: The connection assembly includes a removable clip.

10. The data acquisition terminal and transformer detection device for electric energy meter according to claim 1, characterized in that: The transformer monitoring device further comprises a fixing component, and the fixing component is used to fix the transformer to be detected.

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