GIS switch cabinet health level identification method, device and storage medium

Abstract

The present invention discloses a method, device and storage medium for identifying the health level of a GIS switch cabinet, wherein the method comprises: obtaining evaluation index values ​​of the GIS switch cabinet, wherein the evaluation indexes include main circuit resistance, temperature rise of a touchable shell, opening time, number of times the circuit breaker breaks the rated short-circuit current, micro-water content in the circuit breaker gas chamber, and partial discharge at the isolating fracture; obtaining the membership of each evaluation index value to each corresponding pre-divided health level; respectively calculating the weighted sum of the membership of all evaluation index values ​​belonging to each health level, and taking the health level corresponding to the maximum value of the weighted sum of the membership as the final health level. The main circuit resistance, temperature rise of the touchable shell, opening time, number of times the circuit breaker breaks the rated short-circuit current, micro-water content in the circuit breaker gas chamber, and partial discharge at the isolating fracture are selected as evaluation indexes, and the weights of each evaluation index are determined, so as to finally realize accurate and rapid identification of the health level of the GIS switch cabinet.

Description

Technical Field

[0001] The present invention relates to the field of health assessment of electrical equipment, and in particular to a health level identification method, device and storage medium for a GIS switch cabinet. Background Art

[0002] GIS switchgear with low pressure SF 6 Gas or compressed air is used as the insulating medium of the primary main circuit, and the vacuum circuit breaker is used as the main switch. High-voltage components such as vacuum circuit breakers, three-position disconnectors, current / voltage sensors (or transformers) and their connecting conductors are assembled in a box-type gas-filled container. It has the advantages of small size, high reliability and easy maintenance. However, as the equipment runs longer, various faults will inevitably occur in the GIS switchgear. Due to its complex structure, a single state quantity cannot accurately realize the diagnosis of equipment faults. How to obtain state variables that can reflect the equipment through reliable monitoring means, and how to evaluate and diagnose the GIS switchgear through reasonable methods are problems that need to be solved in the power industry. Summary of the invention

[0003] The purpose of the present invention is to provide a method, device and storage medium for identifying the health level of a GIS switch cabinet, so as to provide the health level of the GIS switch cabinet according to the existing status indicator parameters, so as to facilitate an accurate assessment of the status of the entire equipment.

[0004] In a first aspect, a method for identifying the health level of a GIS switch cabinet is provided, comprising:

[0005] Obtain evaluation index values ​​of the GIS switch cabinet, wherein the evaluation indexes include main circuit resistance, temperature rise of accessible shell, opening time, number of times the circuit breaker breaks rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolating fracture;

[0006] Obtain the membership degree of each evaluation index value to each corresponding pre-divided health level;

[0007] Calculate the weighted sum of the membership of all evaluation index values ​​belonging to each health level respectively, and take the health level corresponding to the maximum value of the weighted sum of membership as the final health level.

[0008] Furthermore, the step of obtaining the membership degree of each evaluation index value to each corresponding pre-divided health level includes:

[0009] Calculate the distance D(j) from each evaluation index value to each corresponding health level;

[0010] Calculate the distance D'(j) from each evaluation index value to the overall interval of all health levels corresponding to each evaluation index value;

[0011] The membership degree of each evaluation index value to each pre-divided health level is calculated by the following formula:

[0012]

[0013] Among them, L(x(j)) represents the membership degree of the jth evaluation index value to each health level, (a k (j),a k+1 (j)) represents the value range of the k+1th health level of the jth evaluation index, k = 0, 1, 2, ... K-1, K is the total number of health levels.

[0014] Furthermore, the distance D(j) from each evaluation index value to each corresponding health level is calculated by the following formula:

[0015]

[0016] Where c(j)=(a k+1 (j)+a k (j)) / 2;

[0017] The distance D'(j) from each evaluation index value to the overall interval of all health levels corresponding to each evaluation index value is calculated by the following formula:

[0018]

[0019] Where d(j)=(a 0 (j)+a K (j)) / 2.

[0020] Furthermore, the step of respectively calculating the weighted sum of the membership of all evaluation index values ​​belonging to each health level, and taking the health level corresponding to the maximum value of the weighted sum of the membership as the final health level, comprises:

[0021] The comprehensive membership of all evaluation index values ​​to each health level is calculated by the following formula:

[0022]

[0023] Among them, L z represents the comprehensive membership of the zth health level, m represents the total number of evaluation indicators, ω j represents the weight of the jth evaluation index, L z (x(j)) represents the membership degree of the jth evaluation index value to its corresponding zth health level;

[0024] If L s =maxL z , the final health level is s.

[0025] Furthermore, the weight of each evaluation index is obtained by the following method:

[0026] Obtain N groups of evaluation index values ​​of GIS switch cabinets to form N groups of samples;

[0027] Each evaluation index value is standardized by the following formula:

[0028]

[0029] Among them, x Δ (i,j) represents the jth evaluation index value of the i-th group of samples after standardization; x max (i,j) represents the maximum value of the jth evaluation index in N groups of samples, x min (i,j) represents the minimum value of the jth evaluation index in N groups of samples;

[0030] The proportion of the j-th evaluation index value of the i-th group of samples to the evaluation index is calculated by the following formula: ij :

[0031]

[0032] The entropy e of the jth evaluation index is calculated by the following formula: j :

[0033]

[0034] The entropy redundancy r of the jth evaluation index is calculated by the following formula: j :

[0035]

[0036] The weight ω of the jth evaluation index is calculated by the following formula: j :

[0037]

[0038] Furthermore, the health level includes level I, indicating health; level II, indicating mild sub-health; level III, indicating moderate sub-health; level IV, indicating severe sub-health; and level V, indicating pathological state.

[0039] Furthermore, each evaluation index is divided into five health levels, and the value range of each evaluation index is divided into five intervals (a 0 (j),a 1 (j))、(a 1 (j),a 2 (j))、(a 2 (j),a 3 (j))、(a 3 (j),a4 (j))、(a 4 (j),a 5 (j)) corresponds to health levels Ⅰ to Ⅴ respectively;

[0040] For the main circuit resistance, its value range is (0,100), and the five intervals are (0,30), (30,50), (50,70), (70,90), (90,100), and the unit is μΩ;

[0041] For the temperature rise of the accessible enclosure, the range is (0,30), and the five intervals are (0,10), (10,16), (16,21), (21,26), (26,30), and the unit is °C;

[0042] For the opening time, the value range is (20,50), and the five intervals are (20,30), (30,36), (36,41), (41,46), (46,50), and the unit is ms;

[0043] For the number of times the circuit breaker breaks the rated short-circuit current, the value range is (0,30), and the five intervals are (0,10), (10,16), (16,22), (22,28), (28,30), and the unit is times;

[0044] For the micro-water content of the circuit breaker air chamber, the value range is (0,500), and the five intervals are (0,200), (200,350), (350,420), (420,470), (470,500), and the unit is μL / L;

[0045] For the partial discharge of the isolation fracture, its value range is (0,50), and the five intervals are (0,20), (20,30), (30,40), (40,46), and (46,50), and the unit is pC.

[0046] Furthermore, the main circuit resistance is obtained by measuring the GIS switch cabinet by a DC step-down method; the temperature rise of the accessible casing is obtained by measuring the GIS switch cabinet by a thermocouple method; the opening time is obtained by measuring the GIS switch cabinet by a circuit breaker analyzer; the number of times the circuit breaker breaks the rated short-circuit current is obtained through the ledger of the GIS switch cabinet; the micro-water content of the circuit breaker air chamber is obtained by measuring the GIS switch cabinet by a micro-water tester; the partial discharge of the isolation break is obtained by measuring the GIS switch cabinet by a partial discharge tester.

[0047] In a second aspect, a device for identifying the health level of a GIS switch cabinet is provided, comprising:

[0048] An evaluation index value acquisition module is used to obtain the evaluation index values ​​of the GIS switch cabinet, wherein the evaluation indexes include main circuit resistance, temperature rise of the accessible shell, opening time, number of times the circuit breaker breaks the rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolation fracture;

[0049] A membership acquisition module is used to obtain the membership of each evaluation index value to each corresponding pre-divided health level;

[0050] The health level identification module is used to calculate the weighted sum of the membership of all evaluation index values ​​belonging to each health level, and take the health level corresponding to the maximum value of the weighted sum of membership as the final health level.

[0051] In a third aspect, a computer-readable storage medium is provided, which stores a computer program, wherein the computer program is suitable for being loaded by a processor and executing the health level identification method of the GIS switch cabinet as described above.

[0052] Beneficial Effects

[0053] The present invention proposes a health level identification method, device and storage medium for a GIS switch cabinet. The method not only divides the health level of the GIS switch cabinet into multiple levels, but also selects six data including main circuit resistance, temperature rise of accessible casing, opening time, number of times the circuit breaker breaks rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolating fracture as evaluation indicators, and determines the weight of each evaluation indicator when used to evaluate the health level, so as to accurately evaluate the health level of the GIS switch cabinet, and finally realize accurate and rapid identification of the health level of the GIS switch cabinet, which has high application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0055] Figure 1 The present invention provides a flow chart of a method for identifying the health level of a GIS switch cabinet. DETAILED DESCRIPTION

[0056] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0057] In the following embodiments, six parameters, namely, main circuit resistance, temperature rise of accessible housing, opening time, number of times the circuit breaker breaks rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolating fracture, are used as evaluation indicators for the health level of the GIS switch cabinet; and the health level of the GIS switch cabinet is divided into five levels, namely: Level I, indicating health; Level II, indicating mild sub-health; Level III, indicating moderate sub-health; Level IV, indicating severe sub-health; and Level V, indicating pathological. Furthermore, each evaluation indicator is also divided into five health levels, and the value range of each evaluation indicator is divided into five intervals (a 0 (j),a 1 (j))、(a 1 (j),a 2 (j))、(a 2 (j),a 3 (j))、(a 3 (j),a 4 (j))、(a 4 (j),a 5 (j)) corresponds to health levels Ⅰ to Ⅴ respectively;

[0058] In the following embodiments:

[0059] For the main circuit resistance, its value range is (0,100), and the five intervals are (0,30), (30,50), (50,70), (70,90), (90,100), and the unit is μΩ;

[0060] For the temperature rise of the accessible enclosure, the range is (0,30), and the five intervals are (0,10), (10,16), (16,21), (21,26), (26,30), and the unit is °C;

[0061] For the opening time, the value range is (20,50), and the five intervals are (20,30), (30,36), (36,41), (41,46), (46,50), and the unit is ms;

[0062] For the number of times the circuit breaker breaks the rated short-circuit current, the value range is (0,30), and the five intervals are (0,10), (10,16), (16,22), (22,28), (28,30), and the unit is times;

[0063] For the micro-water content of the circuit breaker air chamber, the value range is (0,500), and the five intervals are (0,200), (200,350), (350,420), (420,470), (470,500), and the unit is μL / L;

[0064] For the partial discharge of the isolation fracture, its value range is (0,50), and the five intervals are (0,20), (20,30), (30,40), (40,46), and (46,50), and the unit is pC.

[0065] It should be noted that, in actual application, the health level of the GIS switchgear can also be divided into 3, 4, 6 or other numbers, and the number of intervals and the values ​​of the interval points of each evaluation index can also be adjusted accordingly.

[0066] Before identifying the health level of the GIS switchgear, first determine the weight of each evaluation index as follows:

[0067] A1: Obtain N groups of evaluation index values ​​of GIS switch cabinets to form N groups of samples; the evaluation indexes include main circuit resistance, temperature rise of accessible shell, opening time, number of times the circuit breaker breaks the rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolating fracture.

[0068] A2: Each evaluation index value is standardized by the following formula:

[0069]

[0070] Among them, x Δ (i,j) represents the jth evaluation index value of the i-th group of samples after standardization; x max (i,j) represents the maximum value of the jth evaluation index in N groups of samples, x min (i,j) represents the minimum value of the jth evaluation index in N groups of samples;

[0071] A3: The proportion of the j-th evaluation index value of the i-th group of samples to the evaluation index is calculated by the following formula: ij :

[0072]

[0073] A4: The entropy e of the jth evaluation index is calculated by the following formula: j :

[0074]

[0075] A5: The entropy redundancy r of the jth evaluation index is calculated by the following formula: j :

[0076]

[0077] A6: The weight ω of the jth evaluation index is calculated by the following formula: j :

[0078]

[0079] After determining the health level of the GIS switchgear, the health level of each evaluation index and the weight of each evaluation index, the health level of the GIS switchgear can be identified.

[0080] Example 1

[0081] like Figure 1 As shown, this embodiment provides a method for identifying the health level of a GIS switch cabinet, including:

[0082] S1: Obtain evaluation index values ​​of the GIS switch cabinet, where the evaluation indexes include main circuit resistance, temperature rise of accessible casing, opening time, number of times the circuit breaker breaks rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolating fracture.

[0083] Among them, the main circuit resistance is obtained by measuring the GIS switch cabinet through the DC step-down method; the temperature rise of the accessible casing is obtained by measuring the GIS switch cabinet through the thermocouple method; the opening time is obtained by measuring the GIS switch cabinet through the circuit breaker analyzer; the number of times the circuit breaker breaks the rated short-circuit current is obtained through the ledger of the GIS switch cabinet; the micro-water content of the circuit breaker air chamber is measured by the micro-water tester on the GIS switch cabinet; the partial discharge of the isolation break is measured by the partial discharge tester on the GIS switch cabinet.

[0084] S2: Obtain the membership degree of each evaluation index value to each corresponding pre-divided health level. Specifically including:

[0085] S21: Calculate the distance D(j) from each evaluation index value to each corresponding health level: Compare the evaluation index value with the midpoint of each health level interval, that is, x(j) and (a k (j)+a k+1 (j)) / 2; x(j) is greater than (a k (j)+a k+1 (j)) / 2 is used as a k+1 (j) minus x(j), x(j) is less than (a k (j)+a k+1 (j)) / 2 is x(j) minus a k (j), find the distance to each health level, and its expression is as follows:

[0086]

[0087] Where c(j)=(a k+1 (j)+a k (j)) / 2;

[0088] S22: Calculate the distance D'(j) from each evaluation index value to the overall interval of all health levels corresponding to each evaluation index value: Compare the evaluation index value with the midpoint of the entire evaluation index value interval, that is, x(j) and (a 0 (j)+a 5 (j)) / 2; x(j) is greater than (a 0 (j)+a 5 (j)) / 2 is used as a 5 (j) minus x(j), x(j) is less than (a 0 (j)+a 5 (j)) / 2 is x(j) minus a 0 (j), find the distance to the entire value interval, and its expression is as follows:

[0089]

[0090] Where d(j)=(a 0 (j)+a K (j)) / 2.

[0091] S23: The membership degree of each evaluation index value to each pre-divided health level corresponding to each evaluation index value is calculated by the following formula:

[0092]

[0093] Among them, L(x(j)) represents the membership degree of the jth evaluation index value to each health level, (a k (j),a k+1 (j)) represents the value range of the k+1th health level of the jth evaluation index, k = 0, 1, 2, ... K-1, K is the total number of health levels, and in this embodiment, the value is 5. 0 (j),a 1 Taking (j)) as an example, we have:

[0094]

[0095] S3: Calculate the weighted sum of the membership of all evaluation index values ​​belonging to each health level, and take the health level corresponding to the maximum value of the weighted sum of membership as the final health level. Specifically including:

[0096] S31: Calculate the comprehensive membership of all evaluation index values ​​to each health level by the following formula:

[0097]

[0098] Among them, L z represents the comprehensive membership of the zth health level, m represents the total number of evaluation indicators, ω j represents the weight of the jth evaluation index, L z (x(j)) represents the membership degree of the jth evaluation index value to its corresponding zth health level;

[0099] S32: If L s =maxL z , the final health level is s.

[0100] Example 2

[0101] This embodiment provides a GIS switch cabinet health level identification device, including:

[0102] An evaluation index value acquisition module is used to obtain the evaluation index values ​​of the GIS switch cabinet, wherein the evaluation indexes include main circuit resistance, temperature rise of the accessible shell, opening time, number of times the circuit breaker breaks the rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolation fracture;

[0103] A membership acquisition module is used to obtain the membership of each evaluation index value to each corresponding pre-divided health level;

[0104] The health level identification module is used to calculate the weighted sum of the membership of all evaluation index values ​​belonging to each health level, and take the health level corresponding to the maximum value of the weighted sum of membership as the final health level.

[0105] Example 3

[0106] This embodiment provides a computer-readable storage medium storing a computer program, wherein the computer program is suitable for being loaded by a processor and executing the health level identification method of a GIS switch cabinet as described above.

[0107] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0108] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0109] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0110] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0111] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0112] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0113] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for identifying the health level of a GIS switch cabinet. It is characterized in that include: Obtain evaluation index values ​​of the GIS switch cabinet, wherein the evaluation indexes include main circuit resistance, temperature rise of accessible shell, opening time, number of times the circuit breaker breaks rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolating fracture; Obtain the membership degree of each evaluation index value to each corresponding pre-divided health level; Calculate the weighted sum of the membership of all evaluation index values ​​belonging to each health level respectively, and take the health level corresponding to the maximum value of the weighted sum of membership as the final health level; including: The comprehensive membership of all evaluation index values ​​to each health level is calculated by the following formula: Among them, L z represents the comprehensive membership of the zth health level, m represents the total number of evaluation indicators, ω j represents the weight of the jth evaluation index, L z (x(j)) represents the membership degree of the jth evaluation index value to its corresponding zth health level; If L s =maxL z , then the final health level is s; The weight of each evaluation index is obtained by the following method: Obtain N groups of evaluation index values ​​of GIS switch cabinets to form N groups of samples; Each evaluation index value is standardized by the following formula: where x Δ (i, j) represents the j-th evaluation index value of the i-th group of samples after standardization; x max (i, j) represents the maximum value of the j-th evaluation index among N groups of samples, x min (i, j) represents the minimum value of the j-th evaluation index among N groups of samples; The proportion of the j-th evaluation index value of the i-th group of samples to the evaluation index is calculated by the following formula: ij : The entropy e of the jth evaluation index is calculated by the following formula: j : The entropy redundancy r of the jth evaluation index is calculated by the following formula: j : The weight ω of the jth evaluation index is calculated by the following formula: j :

2. The method for identifying the health level of a GIS switch cabinet according to claim 1, It is characterized in that The step of obtaining the membership degree of each evaluation index value to each corresponding pre-divided health level includes: Calculate the distance D(j) from each evaluation index value to each corresponding health level; Calculate the distance D'(j) from each evaluation index value to the overall interval of all health levels corresponding to each evaluation index value; The membership degree of each evaluation index value to each pre-divided health level is calculated by the following formula: Among them, L(x(j)) represents the membership degree of the jth evaluation index value to each health level, (a k (j),a k+1 (j)) represents the value range of the k+1th health level of the jth evaluation index, k = 0, 1, 2, ... K-1, K is the total number of health levels.

3. The method for identifying the health level of a GIS switch cabinet according to claim 2, It is characterized in that The distance D(j) from each evaluation index value to each corresponding health level is calculated by the following formula: Where c(j)=(a k+1 (j)+a k (j)) / 2; The distance D'(j) from each evaluation index value to the overall interval of all health levels corresponding to each evaluation index value is calculated by the following formula: Where d(j)=(a 0 (j)+a K (j)) / 2.

4. The method for identifying the health level of a GIS switch cabinet according to claim 1, It is characterized in that The health levels include level I, indicating health; level II, indicating mild sub-health; level III, indicating moderate sub-health; level IV, indicating severe sub-health; and level V, indicating pathological state.

5. The method for identifying the health level of a GIS switch cabinet according to claim 4, It is characterized in that Each evaluation index is divided into five health levels, and the value range of each evaluation index is divided into five intervals (a 0 (j),a 1 (j))、(a 1 (j),a 2 (j))、(a 2 (j),a 3 (j))、(a 3 (j),a 4 (j))、(a 4 (j),a 5 (j)) corresponds to health levels Ⅰ to Ⅴ respectively; For the main circuit resistance, its value range is (0,100), and the five intervals are (0,30), (30,50), (50,70), (70,90), (90,100), and the unit is μΩ; For the temperature rise of the accessible enclosure, the range is (0,30), and the five intervals are (0,10), (10,16), (16,21), (21,26), (26,30), and the unit is °C; For the opening time, the value range is (20,50), and the five intervals are (20,30), (30,36), (36,41), (41,46), (46,50), and the unit is ms; For the number of times the circuit breaker breaks the rated short-circuit current, the value range is (0,30), and the five intervals are (0,10), (10,16), (16,22), (22,28), (28,30), and the unit is times; For the micro-water content of the circuit breaker air chamber, the value range is (0,500), and the five intervals are (0,200), (200,350), (350,420), (420,470), (470,500), and the unit is μL / L; For the partial discharge of the isolation fracture, its value range is (0,50), and the five intervals are (0,20), (20,30), (30,40), (40,46), and (46,50), and the unit is pC.

6. The method for identifying the health level of a GIS switch cabinet according to claim 1, It is characterized in that The main circuit resistance is obtained by measuring the GIS switch cabinet by the DC step-down method; the temperature rise of the accessible casing is obtained by measuring the GIS switch cabinet by the thermocouple method; the opening time is obtained by measuring the GIS switch cabinet by a circuit breaker analyzer; the number of times the circuit breaker breaks the rated short-circuit current is obtained from the ledger of the GIS switch cabinet; the micro-water content of the circuit breaker air chamber is measured by a micro-water tester on the GIS switch cabinet; the partial discharge of the isolation break is measured by a partial discharge tester on the GIS switch cabinet.

7. A health level identification device for GIS switch cabinet, It is characterized in that The method for identifying the health level of a GIS switch cabinet according to any one of claims 1 to 6 comprises: An evaluation index value acquisition module is used to obtain the evaluation index values ​​of the GIS switch cabinet, wherein the evaluation indexes include main circuit resistance, temperature rise of the accessible shell, opening time, number of times the circuit breaker breaks the rated short-circuit current, micro-water content in the circuit breaker air chamber, and partial discharge of the isolation fracture; A membership acquisition module is used to obtain the membership of each evaluation index value to each corresponding pre-divided health level; The health level identification module is used to calculate the weighted sum of the membership of all evaluation index values ​​belonging to each health level, and take the health level corresponding to the maximum value of the weighted sum of membership as the final health level.

8. A computer-readable storage medium storing a computer program, It is characterized in that The computer program is suitable for being loaded by a processor and executing the health level identification method of a GIS switch cabinet according to any one of claims 1 to 6.

Images