Method and device for detecting insulating property of current transformer insulating oil

Abstract

The invention discloses an insulating property detection method and device for current transformer insulating oil, a storage medium and a terminal.The method comprises the steps that the position of a sensor is reasonably arranged, detection data of gas dissolved in oil are obtained through the sensor, and whether the current transformer insulating oil is in a normal working state or not is judged based on the detection data; the method can accurately identify the change condition of the dissolved gas in the oil so as to judge whether the insulating oil is in a safe state or not. The method comprises the following steps: determining initial position information of each sensor on the inner wall of an upper oil conservator shell; adjusting the initial position information of other sensors except the first sensor to obtain actual position information; and acquiring detection data corresponding to the sensors installed according to the initial position information of the first sensor and the actual position information of other sensors, and determining the insulating property of the current transformer insulating oil according to the detection data.

Description

Technical Field

[0001] The present invention relates to the technical field of current transformers, and in particular to a method and a device for detecting the insulation performance of insulating oil of a current transformer. Background Art

[0002] There are a large number of oil-filled equipment (such as transformers, mutual inductors, oil circuit breakers, etc.) in high-voltage electrical equipment. The main functions of the insulating oil in these equipment are as follows: to make the oil-filled equipment have a good thermal cycle to achieve the purpose of cooling and heat dissipation; to increase the main insulation capacity between phases, layers and equipment, and improve the insulation strength of the equipment; to isolate the equipment from contact with the air to prevent oxidation and moisture infiltration, and ensure that the insulation is not reduced; and to act as an arc extinguishing medium to prevent the expansion of the arc and prompt the arc to be extinguished quickly.

[0003] In recent years, many electrical fire accidents caused by insulating oil failure have occurred both internationally and domestically. Therefore, it is very important to vigorously develop and promote the research and application of insulating oil safety monitoring technology during the use of equipment such as current transformers. Therefore, systematic research and application and promotion of related safety monitoring technologies are not only of great significance for the safe use of equipment such as current transformers, but also more conducive to the safe operation of power grid systems. Summary of the invention

[0004] In view of this, the present invention provides a method, device, storage medium and terminal for detecting the insulation performance of current transformer insulating oil. In the method, the position of the sensor is reasonably set, the detection data of the dissolved gas in the oil is obtained by the sensor, and based on the data, it is judged whether the current transformer insulating oil is in a normal working state. The method can accurately identify the changes in the dissolved gas in the oil, thereby judging whether the insulating oil is in a safe state.

[0005] According to one aspect of the present invention, a method for detecting the insulation performance of insulating oil of a current transformer is provided, wherein the current transformer comprises a first conductive rod, a second conductive rod and an upper oil storage cabinet housing; the method comprises:

[0006] Determine the number of sensors to be installed, and determine the preliminary position information of each sensor on the inner wall of the upper oil storage tank shell; wherein all sensors are arranged in a sequence along the direction from the first conductive rod to the second conductive rod;

[0007] Adjusting preliminary position information of all sensors except the first sensor to obtain actual position information;

[0008] Acquire detection data corresponding to the sensors installed according to the preliminary position information of the first sensor and the actual position information of other sensors, and determine the insulation performance of the insulating oil of the current transformer based on the detection data.

[0009] In some embodiments, the current transformer further includes a secondary shielding cover, and the secondary shielding cover is located inside the upper oil storage cabinet housing; the step of adjusting the preliminary position information of all sensors except the first sensor to obtain the actual position information includes:

[0010] Determine the center of the secondary shielding cover as the origin;

[0011] Determine the angle between the line connecting the first sensor provided on the inner wall of the upper oil storage tank shell and the origin, and the angle between the lines connecting the other sensors and the origin;

[0012] The actual position information of other sensors is determined according to the preset total length of the sensor installation positions on the inner wall of the upper oil storage cabinet shell and the angle.

[0013] In some embodiments, the actual position information of other sensors is determined using the following formula according to the preset total length of the sensor installation positions on the inner wall of the upper oil storage tank shell and the angle:

[0014]

[0015] Among them, l i is the distance between the ith other sensor and the first sensor, i.e., the actual position information of the other sensors; a is the preset total length of the sensor positions that can be installed on the inner wall of the upper oil storage tank shell, and the starting point of the sensor positions that can be installed on the inner wall of the upper oil storage tank shell is the position of the first sensor; n is the number of other sensors, i.e., the total number of sensors minus 1; θ i is the angle between the line connecting the first sensor and the origin, and the line connecting the i-th other sensor and the origin.

[0016] In some embodiments, the step of determining the insulation performance of the current transformer insulating oil according to the detection data comprises:

[0017] Calculating a failure coefficient according to the detection data corresponding to the sensor;

[0018] The insulation performance of the insulating oil of the current transformer is determined according to the failure coefficient corresponding to the at least one sensor.

[0019] In some embodiments, the failure coefficient is calculated using the following formula based on the detection data corresponding to the sensor:

[0020]

[0021] in, is the failure coefficient; t is the number of sensors, t = n + 1; is the hydrogen content, is the ethylene content, is the methane content, λ is the oil level balance coefficient; L0 is the initial height of the insulating oil level; L m The height at which the failure factor is measured for insulating oil.

[0022] In some embodiments, the step of determining the insulation performance of the insulating oil of the current transformer according to the failure coefficient corresponding to at least one sensor includes:

[0023] Determining whether a failure coefficient corresponding to at least one sensor is not greater than a preset failure coefficient;

[0024] If they are all not greater than the preset failure coefficient, it is determined that the insulation performance of the current transformer insulating oil is qualified;

[0025] If a failure coefficient is greater than a preset failure coefficient, it is determined that the insulation performance of the current transformer insulating oil is unqualified.

[0026] In some embodiments, the sensor comprises a semiconductor gas sensor.

[0027] According to another aspect of the present invention, a device for evaluating the insulation performance of insulating oil of a current transformer is provided, wherein the current transformer comprises a first conductive rod, a second conductive rod and an upper oil storage cabinet housing; the device comprises:

[0028] A first determination unit is used to determine the number of sensors to be installed and to determine preliminary position information of each sensor on the inner wall of the upper oil storage tank shell; wherein all sensors are arranged in a sequence along the direction from the first conductive rod to the second conductive rod;

[0029] An adjustment unit, used for adjusting preliminary position information of all sensors except the first sensor to obtain actual position information;

[0030] The second determination unit is used to obtain detection data corresponding to the sensors installed according to the preliminary position information of the first sensor and the actual position information of other sensors, and determine the insulation performance of the insulating oil of the current transformer according to the detection data.

[0031] According to another aspect of the present invention, a storage medium is provided, wherein the storage medium stores at least one executable instruction, and the executable instruction enables a processor to execute the insulation performance detection method of the insulating oil of a current transformer as described above.

[0032] According to another aspect of the present invention, there is provided a terminal, comprising: a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other via the communication bus;

[0033] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute the insulation performance detection method of the insulating oil of the current transformer as described above.

[0034] The present invention provides a method, device, storage medium and terminal for detecting the insulation performance of the insulating oil of a current transformer. In the method, the position of the sensor is reasonably set, and the detection data of the dissolved gas in the oil is obtained through the sensor, and based on this, it is judged whether the insulating oil of the current transformer is in a normal working state. The method can accurately identify the change of the dissolved gas in the oil, so as to judge whether the insulating oil is in a safe state. The method includes: determining the number of sensors to be installed, and determining the preliminary position information of each sensor on the inner wall of the outer shell of the upper oil storage cabinet; wherein all sensors are arranged in a sequential order along the direction from the first conductive rod to the second conductive rod; adjusting the preliminary position information of all sensors except the first sensor to obtain the actual position information; obtaining the detection data corresponding to the sensors installed according to the preliminary position information of the first sensor and the actual position information of other sensors, and determining the insulation performance of the insulating oil of the current transformer according to the detection data.

[0035] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0037] Figure 1 A flowchart of a method for detecting insulation performance of insulating oil of a current transformer provided in accordance with some embodiments is exemplarily shown;

[0038] Figure 2 A schematic structural diagram of a current transformer provided according to some embodiments is exemplarily shown;

[0039] Figure 3 The structure diagram of a device for evaluating the insulation performance of insulating oil of a current transformer provided in accordance with some embodiments is exemplarily shown;

[0040] Figure 4 A schematic diagram of the structure of a terminal provided according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0041] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0042] In order to solve the above technical problems, the embodiments of the present application provide a method, device, storage medium and terminal for detecting the insulation performance of the insulating oil of a current transformer. In the method, the position of the sensor is reasonably set, the detection data of the dissolved gas in the oil is obtained through the sensor, and based on this, it is judged whether the insulating oil of the current transformer is in a normal working state. The method can accurately identify the changes in the dissolved gas in the oil, thereby judging whether the insulating oil is in a safe state.

[0043] Figure 1 A flow chart of a method for detecting insulation performance of insulating oil of a current transformer provided in accordance with some embodiments is exemplarily shown, and the method includes S100-S300.

[0044] Figure 2 The structural schematic diagram of a current transformer provided according to some embodiments is exemplarily shown. The current transformer comprises an upper oil storage cabinet housing 1, a secondary shielding cover 2, a first conductive rod 3 and a second conductive rod 4; wherein the secondary shielding cover is located inside the upper oil storage cabinet housing, the first conductive rod is a P1 conductive rod, and the second conductive rod is a P2 conductive rod.

[0045] S100, determining the number of sensors to be installed, and determining preliminary position information of each sensor on the inner wall of the upper oil storage cabinet shell; wherein all sensors are arranged in a sequence along a direction from the first conductive rod to the second conductive rod.

[0046] In the embodiment of the present application, the number of sensors to be installed can be preset according to actual needs. For example, the number of sensors to be installed can be 6. The preliminary position information of each sensor on the inner wall of the upper oil storage tank shell can be determined according to the preset total length of the sensor-installable positions on the inner wall of the upper oil storage tank shell and the number of sensors. Specifically, all sensors can be evenly distributed on the sensor-installable positions. In some embodiments, the starting point of the sensor-installable positions on the inner wall of the upper oil storage tank shell is the junction of the upper end of the inner wall of the upper oil storage tank shell and the inner wall near the P1 conductive rod. The end point is the junction of the upper end of the inner wall of the upper oil storage tank shell and the inner wall near the P2 conductive rod.

[0047] In some embodiments, the upper oil storage tank shell can be made of a transparent material, and can be made of organic glass for example. Organic glass has higher hardness and better corrosion resistance, and also has good visibility, which reduces the difficulty of oil level observation.

[0048] S200: Adjust preliminary position information of all sensors except the first sensor to obtain actual position information.

[0049] In the embodiment of the present application, based on the structural characteristics of the upper oil storage cabinet shell, and taking into account the safety of sensor placement and the economic efficiency of insulating oil insulation performance evaluation, the preliminary position information of other sensors except the first sensor evenly distributed at the sensor installable positions is adjusted.

[0050] In some embodiments, the step of adjusting the preliminary position information of all sensors except the first sensor to obtain the actual position information includes:

[0051] Determine the center of the secondary shielding cover as the origin;

[0052] Determine the angle between the line connecting the first sensor set on the inner wall of the upper oil storage tank shell and the origin, and the angle between the lines connecting the other sensors and the origin, and refer to Figure 2 , Figure 2 Where θ1 is the angle between the line connecting the first sensor a0 and the origin O, and the line connecting the other sensors a1 and the origin O. θ2 is the angle between the line connecting the first sensor a0 and the origin O, and the line connecting the other sensors a2 and the origin O.

[0053] The actual position information of other sensors is determined according to the preset total length of the sensor installation positions on the inner wall of the upper oil storage cabinet shell and the angle.

[0054] In some embodiments, the actual position information of other sensors is determined using the following formula according to the preset total length of the sensor installation positions on the inner wall of the upper oil storage tank shell and the angle:

[0055]

[0056] Among them, l i is the distance between the ith other sensor and the first sensor, i.e., the actual position information of the other sensors; a is the preset total length of the sensor positions that can be installed on the inner wall of the upper oil storage tank shell, and the starting point of the sensor positions that can be installed on the inner wall of the upper oil storage tank shell is the position of the first sensor; n is the number of other sensors, i.e., the total number of sensors minus 1; θ i is the angle between the line connecting the first sensor and the origin, and the line connecting the i-th other sensor and the origin.

[0057] In this embodiment, considering the safety of sensor placement and the economic efficiency of insulating oil insulation performance evaluation, the preliminary position information of other sensors is reasonably adjusted to obtain actual position information.

[0058] S300, obtaining detection data corresponding to the sensors installed according to the preliminary position information of the first sensor and the actual position information of other sensors, and determining the insulation performance of the insulating oil of the current transformer according to the detection data.

[0059] In the embodiment of the present application, after the actual position information of other sensors is determined, the other sensors are installed according to the actual position information, and the first sensor is installed according to its preliminary position information.

[0060] In the embodiment of the present application, the insulating oil may age to a certain extent after use, and cracking and other reactions may occur at this time, releasing gas. The main components of the gas include hydrogen, ethylene, acetylene and methane. The insulating performance of the insulating oil can be determined by the content of various gases.

[0061] In some embodiments, detection data corresponding to the installed sensor can be obtained in real time, and the insulation performance of the insulating oil of the current transformer can be determined in real time to ensure the safe and reliable operation of the current transformer.

[0062] In some embodiments, the sensor comprises a semiconductor gas sensor, which detects the composition or concentration of the gas by using the change in resistance of a semiconductor when it contacts the gas, that is, the detection data corresponding to the installed sensor.

[0063] In some embodiments, the step of determining the insulation performance of the current transformer insulating oil according to the detection data comprises:

[0064] Calculating a failure coefficient according to the detection data corresponding to the sensor;

[0065] In some embodiments, the failure coefficient is calculated using the following formula based on the detection data corresponding to the sensor:

[0066]

[0067] in, is the failure coefficient; t is the number of sensors, t = n + 1; is the hydrogen content, i.e. C H2 (dimensionless); is the ethylene content, i.e. C C2H4 (dimensionless); is the acetylene content, i.e. C C2H2 (dimensionless); is the methane content, λ is the oil level balance coefficient; L0 is the initial height of the insulating oil level; L m The height at which the failure factor is measured for insulating oil.

[0068] It should be noted that the insulating oil will age to a certain extent after use, and undergo reactions such as cracking, during which different gases will be produced. At the same time, the amount of insulating oil will also change, that is, the height of the oil level will also change. The failure coefficient of the insulating oil is determined based on this, and the performance of the insulating oil is subsequently determined based on the failure coefficient, which is convenient for operators to understand and deal with in a timely manner.

[0069] The insulation performance of the insulating oil of the current transformer is determined according to the failure coefficient corresponding to the at least one sensor.

[0070] It is understandable that different sensors are installed at different positions, and thus the failure coefficients determined using the detection data obtained by different sensors are also different. In the embodiment of the present application, the failure coefficients corresponding to all sensors can be used to determine the insulation performance of the current transformer insulating oil. The failure coefficients corresponding to some sensors can also be used to determine the insulation performance of the current transformer insulating oil.

[0071] In some embodiments, the step of determining the insulation performance of the insulating oil of the current transformer according to the failure coefficient corresponding to at least one sensor includes:

[0072] It is determined whether the failure coefficient corresponding to at least one sensor is not greater than a preset failure coefficient.

[0073] In the embodiment of the present application, the preset failure coefficient is determined based on the detection data measured by the sensor when the insulating oil has qualified insulation performance. By comparing the magnitude relationship between the failure coefficient corresponding to the sensor and the preset failure coefficient, the insulation performance of the current insulating oil can be understood. In one example, the preset failure coefficient is 0.6.

[0074] If they are all not greater than the preset failure coefficient, it is determined that the insulation performance of the current transformer insulating oil is qualified;

[0075] If a failure coefficient is greater than a preset failure coefficient, it is determined that the insulation performance of the current transformer insulating oil is unqualified.

[0076] In the embodiment of the present application, if the failure coefficients corresponding to the sensors compared with the preset failure coefficients are not greater than the preset failure coefficients, it is determined that the insulation performance of the current transformer insulating oil is qualified. If there is a failure coefficient greater than the preset failure coefficient among the failure coefficients corresponding to the sensors compared with the preset failure coefficients, it is determined that the insulating oil has failed, and the insulation performance of the current transformer insulating oil is unqualified, and an insulation status assessment report can be issued later to indicate the failure of the insulating oil.

[0077] In some embodiments, issuing the insulation status assessment may be issued by a safety system module.

[0078] The embodiments of the present application provide a method, device, storage medium and terminal for detecting the insulation performance of the insulating oil of a current transformer. In the method, the position of the sensor is reasonably set, the detection data of the dissolved gas in the oil is obtained through the sensor, and based on the data, it is judged whether the insulating oil of the current transformer is in a normal working state. The method can accurately identify the changes in the dissolved gas in the oil, thereby judging whether the insulating oil is in a safe state.

[0079] Furthermore, as a response to the above Figure 1 The embodiment of the present invention provides a device for evaluating the insulation performance of insulating oil of a current transformer, such as Figure 3 As shown, the device comprises:

[0080] The first determination unit 301 is used to determine the number of sensors to be installed and determine the preliminary position information of each sensor on the inner wall of the upper oil storage tank shell; wherein all sensors are arranged in a sequence along the direction from the first conductive rod to the second conductive rod;

[0081] An adjustment unit 302, configured to adjust preliminary position information of all sensors except the first sensor to obtain actual position information;

[0082] The second determination unit 303 is used to obtain detection data corresponding to the sensors installed according to the preliminary position information of the first sensor and the actual position information of other sensors, and determine the insulation performance of the insulating oil of the current transformer according to the detection data.

[0083] According to an embodiment of the present invention, a storage medium is provided, wherein the storage medium stores at least one executable instruction, and the computer executable instruction can execute the power transmission line fault monitoring method in any of the above method embodiments.

[0084] Figure 4 A schematic diagram of the structure of a terminal provided according to an embodiment of the present invention is shown. The specific embodiment of the present invention does not limit the specific implementation of the terminal.

[0085] like Figure 4 As shown, the terminal may include: a processor (processor) 402 , a communication interface (Communications Interface) 404 , a memory (memory) 406 , and a communication bus 408 .

[0086] The processor 402 , the communication interface 404 , and the memory 406 communicate with each other via a communication bus 408 .

[0087] The communication interface 404 is used to communicate with other devices such as clients or other servers.

[0088] The processor 402 is used to execute the program 410, and specifically can execute the relevant steps in the above-mentioned power transmission line fault monitoring method embodiment.

[0089] Specifically, the program 410 may include program codes, which include computer operation instructions.

[0090] The processor 402 may be a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiment of the present invention. The one or more processors included in the terminal may be processors of the same type, such as one or more CPUs; or processors of different types, such as one or more CPUs and one or more ASICs.

[0091] The memory 406 is used to store the program 410. The memory 406 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0092] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for detecting the insulation performance of current transformer insulating oil, characterized in that: The current transformer comprises a first conductive rod, a second conductive rod and an upper oil storage cabinet housing; the method comprises: Determine the number of sensors to be installed, and determine the preliminary position information of each sensor on the inner wall of the upper oil storage tank shell; wherein all sensors are arranged in a sequence along the direction from the first conductive rod to the second conductive rod; Adjusting preliminary position information of all sensors except the first sensor to obtain actual position information; Acquire detection data corresponding to the sensors installed according to the preliminary position information of the first sensor and the actual position information of other sensors, and determine the insulation performance of the insulating oil of the current transformer based on the detection data.

2. The method according to claim 1, characterized in that The current transformer also includes a secondary shielding cover, which is located inside the upper oil storage cabinet shell; The steps of adjusting the preliminary position information of all sensors except the first sensor to obtain the actual position information include: Determine the center of the secondary shielding cover as the origin; Determine the angle between the line connecting the first sensor provided on the inner wall of the upper oil storage tank shell and the origin, and the angle between the lines connecting the other sensors and the origin; The actual position information of other sensors is determined according to the preset total length of the sensor installation positions on the inner wall of the upper oil storage cabinet shell and the angle.

3. The method according to claim 2, characterized in that According to the preset total length of the sensor installation position on the inner wall of the upper oil storage tank shell and the angle, the actual position information of other sensors is determined using the following formula: Among them, l i is the distance between the ith other sensor and the first sensor, i.e., the actual position information of the other sensors; a is the preset total length of the sensor positions that can be installed on the inner wall of the upper oil storage tank shell, and the starting point of the sensor positions that can be installed on the inner wall of the upper oil storage tank shell is the position of the first sensor; n is the number of other sensors, i.e., the total number of sensors minus 1; θ i is the angle between the line connecting the first sensor and the origin, and the line connecting the i-th other sensor and the origin.

4. The method according to claim 1, characterized in that: The step of determining the insulation performance of the current transformer insulating oil according to the detection data comprises: Calculating a failure coefficient according to the detection data corresponding to the sensor; The insulation performance of the insulating oil of the current transformer is determined according to the failure coefficient corresponding to the at least one sensor.

5. The method according to claim 4, characterized in that According to the detection data corresponding to the sensor, the failure coefficient is calculated using the following formula: in, is the failure coefficient; t is the number of sensors, t = n + 1; is the hydrogen content, is the ethylene content, is the methane content, λ is the oil level balance coefficient; L0 is the initial height of the insulating oil level; L m The height at which the failure factor is measured for insulating oil.

6. The method according to claim 1, characterized in that The step of determining the insulation performance of the insulating oil of the current transformer according to the failure coefficient corresponding to at least one sensor comprises: Determining whether a failure coefficient corresponding to at least one sensor is not greater than a preset failure coefficient; If they are all not greater than the preset failure coefficient, it is determined that the insulation performance of the current transformer insulating oil is qualified; If a failure coefficient is greater than a preset failure coefficient, it is determined that the insulation performance of the current transformer insulating oil is unqualified.

7. The method according to claim 1, characterized in that The sensor includes a semiconductor gas sensor.

8. A device for evaluating the insulation performance of insulating oil of a current transformer, characterized in that: The current transformer comprises a first conductive rod, a second conductive rod and an upper oil storage cabinet housing; the device comprises: A first determination unit is used to determine the number of sensors to be installed and to determine preliminary position information of each sensor on the inner wall of the upper oil storage tank shell; wherein all sensors are arranged in a sequence along the direction from the first conductive rod to the second conductive rod; An adjustment unit, used for adjusting preliminary position information of all sensors except the first sensor to obtain actual position information; The second determination unit is used to obtain detection data corresponding to the sensors installed according to the preliminary position information of the first sensor and the actual position information of other sensors, and determine the insulation performance of the insulating oil of the current transformer according to the detection data.

9. A storage medium, wherein at least one executable instruction is stored in the storage medium, and the executable instruction enables a processor to execute the insulation performance detection method of current transformer insulating oil according to any one of claims 1 to 7.

10. A terminal, comprising: A processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other via the communication bus; The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute the insulation performance detection method of the insulating oil of the current transformer according to any one of claims 1 to 7.

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