Method, device, equipment and medium for monitoring the operation status of pre-adjustable arc suppression coil

Abstract

The embodiment of the present invention discloses a method, device, equipment and medium for monitoring the operation status of a pre-adjustable arc extinguishing coil. The method includes: obtaining the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc extinguishing coil; obtaining the optimal reactance value of the arc extinguishing coil based on the distributed capacitance value to the ground; obtaining the optimal gear of the arc extinguishing coil based on the optimal reactance value; comparing the optimal gear and the current gear of the arc extinguishing coil according to a first preset rule to generate a first monitoring result of the arc extinguishing coil; the first monitoring result refers to the result generated based on the comparison result between the current gear of the arc extinguishing coil and the optimal gear; comparing the optimal reactance value and the minimum reactance value of the arc extinguishing coil according to a second preset rule to generate a second monitoring result of the arc extinguishing coil; the second monitoring result refers to the result generated based on the comparison result between the minimum reactance value of the arc extinguishing coil and the optimal reactance value, and the minimum reactance value is the minimum value among the reactance values ​​of each gear.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of arc suppression coil monitoring, and in particular to a method, device, equipment and medium for monitoring the operating status of a pre-adjustable arc suppression coil. Background Art

[0002] In order to reduce the fault current during single-phase grounding fault, automatically extinguish the grounding arc, reduce the multi-voltage level, and improve system reliability, 6-66kV power systems often use arc suppression coil grounding when the system capacitance current exceeds 10A. Pre-adjusted arc suppression coils are widely used in power systems due to their relatively high economy and stability.

[0003] The pre-adjusted arc extinguishing coil adjusts the arc extinguishing coil to near the resonance point before a single-phase grounding fault occurs. Once the gear position of the arc extinguishing coil is adjusted incorrectly or is not at the optimal gear position, when a single-phase grounding fault occurs, problems such as excessive grounding fault current and arc extinguishing failure may occur, seriously affecting the power supply reliability.

[0004] Therefore, a method for real-time monitoring of the operating status of the arc extinguishing coil is needed to solve the above technical problems. Summary of the invention

[0005] In view of this, the embodiments of the present invention provide a method, device, equipment and medium for monitoring the operating status of a pre-adjustable arc extinguishing coil, which realizes the monitoring of the operating status of the pre-adjustable arc extinguishing coil and improves the accuracy of monitoring.

[0006] In a first aspect, an embodiment of the present invention provides a method for monitoring the operation status of a pre-adjustable arc suppression coil, which is characterized by comprising:

[0007] Obtain the distributed capacitance value to ground and the gear reactance value corresponding to each gear of the arc suppression coil;

[0008] Obtaining an optimal reactance value of the arc suppression coil based on the distributed capacitance to ground;

[0009] Obtaining the optimal gear position of the arc extinguishing coil based on the optimal reactance value;

[0010] Comparing the optimal gear position and the current gear position of the arc extinguishing coil according to a first preset rule to generate a first monitoring result of the arc extinguishing coil; the first monitoring result is generated based on the comparison result between the current gear position of the arc extinguishing coil and the optimal gear position;

[0011] The optimal reactance value and the minimum reactance value of the arc extinguishing coil are compared according to a second preset rule to generate a second monitoring result of the arc extinguishing coil; the second monitoring result refers to the result generated based on the comparison result of the minimum reactance value and the optimal reactance value of the arc extinguishing coil, and the minimum reactance value is the minimum value among the reactance values ​​of each gear.

[0012] In a second aspect, an embodiment of the present invention further provides a pre-adjustable arc suppression coil operation status monitoring device, characterized in that it includes:

[0013] A data acquisition module is used to obtain the ground distributed capacitance value and the gear reactance value corresponding to each gear of the arc suppression coil;

[0014] An optimal reactance value acquisition module, used to obtain the optimal reactance value of the arc suppression coil based on the distributed capacitance value to the ground;

[0015] An optimal gear position acquisition module, used to obtain the optimal gear position of the arc extinguishing coil based on the optimal reactance value;

[0016] A first monitoring result generating module, used for comparing the optimal gear position and the current gear position of the arc extinguishing coil according to a first preset rule to generate a first monitoring result of the arc extinguishing coil; the first monitoring result refers to the result generated based on the comparison result between the current gear position of the arc extinguishing coil and the optimal gear position;

[0017] The second monitoring result generating module is used to compare the optimal reactance value and the minimum reactance value of the arc extinguishing coil according to a second preset rule to generate a second monitoring result of the arc extinguishing coil; the second monitoring result refers to the result generated based on the comparison result of the minimum reactance value and the optimal reactance value of the arc extinguishing coil, and the minimum reactance value is the minimum value among the reactance values ​​of each gear.

[0018] In a third aspect, an embodiment of the present invention further provides an electronic device, characterized in that the electronic device includes:

[0019] one or more processors;

[0020] a storage device for storing one or more programs,

[0021] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for monitoring the operating status of the pre-adjustable arc suppression coil in any embodiment of the present invention.

[0022] In a fourth aspect, an embodiment of the present invention further provides a storage medium comprising computer executable instructions, which, when executed by a computer processor, are used to execute a method for monitoring the operating status of a pre-adjustable arc suppression coil as in any embodiment of the present invention.

[0023] The technical solution of the embodiment of the present invention is achieved by obtaining the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc extinguishing coil. The optimal reactance value of the arc extinguishing coil is obtained based on the comparison of the distributed capacitance value, and the optimal gear of the arc extinguishing coil is obtained based on the optimal reactance value. According to the first preset rule, the optimal gear and the current gear of the arc extinguishing coil are compared to obtain a comparison result, and a first monitoring result is generated based on the comparison result. According to the second preset rule, the optimal reactance value and the minimum reactance value of the arc extinguishing coil are compared to generate a second monitoring result, and the second monitoring result refers to the result generated based on the comparison result of the minimum reactance value and the optimal reactance value of the arc extinguishing coil. Through the technical solution of the embodiment of the present invention, the operating status of the arc extinguishing coil is monitored and the accuracy of monitoring is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] in:

[0026] Figure 1 It is a schematic flow chart of a method for monitoring the operating status of a pre-adjustable arc suppression coil in the first embodiment of the present invention;

[0027] Figure 2 It is a flow chart of a method for monitoring the operation status of a pre-adjustable arc suppression coil in the second embodiment of the present invention;

[0028] Figure 3 It is a structural schematic diagram of a pre-adjustable arc suppression coil operation status monitoring system in Embodiment 3 of the present invention;

[0029] Figure 4 It is a structural schematic diagram of a pre-adjustable arc suppression coil operation status monitoring device in the fourth embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of an electronic device in Embodiment 5 of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] Figure 1 A flow chart of a method for monitoring the operating status of a pre-adjustable arc extinguishing coil is provided in an embodiment of the present invention. This embodiment is applicable to the situation where the operating status of a pre-adjustable arc extinguishing coil is monitored. The method can be executed by a device for monitoring the operating status of a pre-adjustable arc extinguishing coil, and the device can be implemented in the form of software and / or hardware.

[0034] like Figure 1 As shown, the method for monitoring the operation status of the pre-adjustable arc suppression coil according to the embodiment of the present invention specifically includes the following steps:

[0035] S110, obtaining the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc extinguishing coil 6.

[0036] Among them, the distributed capacitance value to the ground refers to the average value of the capacitance estimation to the ground corresponding to each voltage frequency in the power system. The arc suppression coil 6 refers to an inductor coil with an iron core, which is connected between the neutral point of the transformer or generator and the earth. When a single-phase arc grounding occurs in the power grid, the neutral point potential will rise to the phase voltage, and the inductive current flowing through the arc suppression coil 6 and the capacitive fault current of the single-phase grounding will offset each other, so that the fault current is compensated, and then the grounding fault is eliminated. The arc suppression coil 6 has multiple gears, and each gear has a corresponding gear reactance value. The arc suppression coil 6 includes a pre-adjustable arc suppression coil and an adjustable arc suppression coil. In the embodiment of the present invention, the arc suppression coil 6 refers to a pre-adjustable arc suppression coil.

[0037] Specifically, the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc extinguishing coil 6 are obtained to prepare for the subsequent determination of the operating status of the arc extinguishing coil 6.

[0038] Furthermore, in an embodiment of the present invention, obtaining the value of distributed capacitance to the ground includes: obtaining the neutral point voltage and arc suppression coil 6 voltage of multiple voltage frequencies of the power system within a preset voltage and frequency range; obtaining the maximum amplitude of the arc suppression coil 6 voltage for multiple arc suppression coil 6 voltages, and taking the voltage frequency corresponding to the maximum amplitude as the center voltage frequency; obtaining the center value of the capacitance to the ground based on the center voltage frequency and the inductance value of the current gear of the arc suppression coil 6; selecting a preset number of voltage frequencies other than the center voltage frequency from multiple voltage frequencies as the target voltage frequency, and obtaining the capacitance value to the ground corresponding to each target voltage frequency; calculating the average value of the center value of the capacitance to the ground and the preset number of capacitance values ​​to the ground, and determining the average value as the distributed capacitance value to the ground.

[0039] The voltage frequency refers to the voltage frequency of the external power supply, and the external power supply is used to input a sinusoidal voltage to the power system. The preset voltage frequency range refers to a preset voltage frequency range. Of course, the preset voltage frequency range can be set according to actual conditions and is not specifically limited here. The preset voltage frequency range includes multiple voltage frequencies, that is, the voltage frequency of the external power supply includes multiple.

[0040] Specifically, the neutral point voltage and arc suppression coil 6 voltage of the power system at multiple voltage frequencies within a preset voltage frequency range are obtained, the maximum amplitude is determined from the multiple arc suppression coil 6 voltages, and the voltage frequency corresponding to the maximum amplitude is used as the center voltage frequency. According to the center voltage and the inductance value of the current gear of the arc suppression coil 6, the center value of the ground capacitance is obtained, and a preset number of voltage frequencies other than the center voltage frequency are selected from the multiple voltage frequencies as the target voltage frequency, and then the ground capacitance value corresponding to each target voltage frequency is obtained, and the preset number of ground capacitance values ​​and the ground capacitance center value are averaged to obtain the average value, and the average value is used as the ground distributed capacitance value.

[0041] Further, in the embodiment of the present invention, based on the center voltage frequency and the inductance value of the current gear of the arc suppression coil 6, the center value of the capacitance to ground is obtained, including: Among them, C0 is the center value of the capacitance to ground, L is the inductance value corresponding to the current gear of the arc extinguishing coil 6, and F0 is the voltage frequency corresponding to the maximum amplitude of the voltage of the arc extinguishing coil 6.

[0042] Specifically, the center value of the capacitance to ground can be obtained through the above formula.

[0043] Further, in an embodiment of the present invention, obtaining the capacitance value to ground corresponding to each target voltage frequency includes: obtaining the capacitance value to ground corresponding to each target voltage frequency by the following formula; Among them, C n is the nth capacitance to ground, F n is the target voltage frequency, L is the inductance value corresponding to the current gear of the arc extinguishing coil 6, and U1 is the target voltage frequency F n The arc suppression coil 6 voltage, U2 is the target voltage frequency F n The neutral point voltage.

[0044] Specifically, in the embodiment of the present invention, each voltage frequency is provided with a serial number so as to distinguish different voltage frequencies. The capacitance to ground corresponding to each target voltage frequency can be obtained by the above formula. The target voltage is input to the power system to obtain the neutral point voltage and the arc suppression coil 6 voltage based on the voltage to be used.

[0045] S120. Obtain the optimal reactance value of the arc extinguishing coil 6 based on the distributed capacitance to ground.

[0046] Specifically, the capacitive reactance value of the power system is calculated according to the distributed capacitance value to the ground, and the capacitive reactance value is used as the optimal reactance value of the arc extinguishing coil 6 .

[0047] S130. Obtain the optimal gear position of the arc extinguishing coil 6 based on the optimal reactance value.

[0048] Specifically, the optimal gear position of the arc extinguishing coil 6 is obtained according to the optimal reactance value, so as to prepare for the subsequent comparison of the current gear position of the arc extinguishing coil 6 based on the optimal gear position.

[0049] S140. Compare the optimal gear position and the current gear position of the arc extinguishing coil 6 according to a first preset rule to generate a first monitoring result of the arc extinguishing coil 6.

[0050] Among them, the first monitoring result refers to the one generated based on the comparison result between the current gear position and the optimal gear position of the arc extinguishing coil 6. The first preset rule may refer to that when the optimal gear position and the current gear position of the arc extinguishing coil 6 are different, it corresponds to one operating state of the arc extinguishing coil 6, and when the optimal gear position and the current gear position of the arc extinguishing coil 6 are the same, it corresponds to another operating state of the arc extinguishing coil 6.

[0051] Specifically, the optimal gear position and the current gear position of the arc extinguishing coil 6 are compared according to the first preset rule to obtain a comparison result, and the first monitoring result of the arc extinguishing coil 6 is generated based on the comparison result.

[0052] S150. Compare the optimal reactance value and the minimum reactance value of the arc extinguishing coil 6 according to a second preset rule to generate a second monitoring result of the arc extinguishing coil.

[0053] The second monitoring result is generated based on the comparison result between the minimum reactance value and the optimal reactance value of the arc extinguishing coil 6. The minimum reactance value is the minimum value among the reactance values ​​of each gear.

[0054] Specifically, the minimum reactance value is determined from the reactance values ​​of each gear, and the optimal reactance value and the minimum reactance value of the arc extinguishing coil 6 are compared according to the second preset rule to obtain a comparison result, and the second monitoring result of the arc extinguishing coil 6 is generated based on the comparison result.

[0055] Optionally, the first monitoring result and the second monitoring result may be combined according to the generation time to obtain the operation monitoring result of the arc extinguishing coil 6, which is convenient for staff to view.

[0056] The technical solution of the embodiment of the present invention is achieved by obtaining the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc extinguishing coil 6. The optimal reactance value of the arc extinguishing coil 6 is obtained based on the comparison of the distributed capacitance value, and the optimal gear of the arc extinguishing coil 6 is obtained based on the optimal reactance value. According to the first preset rule, the optimal gear and the current gear of the arc extinguishing coil 6 are compared to obtain a comparison result, and a first monitoring result is generated based on the comparison result. According to the second preset rule, the optimal reactance value and the minimum reactance value of the arc extinguishing coil 6 are compared to generate a second monitoring result, and the second monitoring result refers to the result generated based on the comparison result of the minimum reactance value and the optimal reactance value of the arc extinguishing coil 6. Through the technical solution of the embodiment of the present invention, the operating status of the arc extinguishing coil 6 is monitored, and the accuracy of monitoring is improved.

[0057] Embodiment 2

[0058] Figure 2 This is a flow chart of a method for monitoring the operation status of a pre-adjustable arc suppression coil provided by an embodiment of the present invention. The embodiment of the present invention refines steps S140 and S150 based on the optional scheme of the above embodiment. The technical terms that are the same or similar to those in the above embodiment will not be repeated.

[0059] like Figure 2 As shown, the method for monitoring the operation status of the pre-adjustable arc suppression coil according to the embodiment of the present invention specifically includes the following steps:

[0060] S210, obtaining the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc suppression coil 6.

[0061] S220. Obtain the optimal reactance value of the arc extinguishing coil 6 based on the distributed capacitance to ground.

[0062] S230. Obtain the optimal gear position of the arc extinguishing coil 6 based on the optimal reactance value.

[0063] Furthermore, in an embodiment of the present invention, the optimal reactance value of the arc extinguishing coil 6 is obtained based on the distributed capacitance to the ground, including: obtaining the capacitive reactance value of the power system based on the distributed capacitance to the ground, and taking the capacitive reactance value as the optimal reactance value; obtaining the optimal gear of the arc extinguishing coil 6 based on the optimal reactance value, including: if there are at least two gear reactance values ​​less than the optimal reactance value, respectively calculating the difference between the optimal reactance value and the at least two gear reactance values, taking the reactance value corresponding to the minimum difference as the target reactance value, and taking the gear corresponding to the target reactance value as the optimal gear, or if there is a gear reactance value less than the optimal reactance value, taking the gear corresponding to the gear reactance value as the optimal gear.

[0064] Specifically, the gear reactance values ​​corresponding to each gear of the arc extinguishing coil 6 are compared with the optimal reactance value one by one. If only one gear reactance value is less than the optimal reactance value, the gear corresponding to the gear reactance value is used as the optimal gear of the arc extinguishing coil 6. If there are at least two gear reactance values ​​less than the optimal reactance value, the difference between the optimal reactance value and at least two gear reactance values ​​is calculated respectively, and the gear reactance value corresponding to the smallest difference is used as the target reactance value, and the gear corresponding to the target reactance value is used as the optimal gear.

[0065] S240. If the optimal gear is the same as the current gear of the arc extinguishing coil 6, the first monitoring result is that the arc extinguishing coil 6 operates normally; if the optimal gear is higher than the current gear of the arc extinguishing coil 6, the first monitoring result is that the arc extinguishing coil 6 operates abnormally, and includes the recommended information for increasing the gear corresponding to the abnormal operation of the arc extinguishing coil 6; or if the optimal gear is lower than the current gear of the arc extinguishing coil 6, the first monitoring result is that the arc extinguishing coil 6 operates abnormally, and includes the recommended information for decreasing the gear corresponding to the abnormal operation of the arc extinguishing coil 6.

[0066] Among them, the gear increase suggestion information may include the time when the first monitoring result is generated, the current gear information of the arc extinguishing coil 6, the gear information that needs to be increased, etc. For example, at 12:12:23 on April 21, 2022, the current gear of the arc extinguishing coil 6 is 4, and it is increased to the optimal gear 6. Similarly, the gear reduction suggestion information may include the time when the first monitoring result is generated, the current gear information of the arc extinguishing coil 6, the gear information that needs to be reduced, etc.

[0067] Specifically, when the optimal gear position and the current gear position of the arc extinguishing coil 6 are the same, it means that the current gear position of the arc extinguishing coil 6 is the optimal gear position, and the first monitoring result is that the operating state of the arc extinguishing coil 6 is normal. When the optimal gear position and the current gear position of the arc extinguishing coil 6 are different, the first monitoring result is that the operating state of the arc extinguishing coil 6 is abnormal, and the first monitoring result also includes the gear adjustment suggestion information of the arc extinguishing coil 6. The difference between the optimal gear position and the current gear position of the arc extinguishing coil 6 can be divided into two cases. In the first case, the current gear position of the arc extinguishing coil 6 is less than the optimal gear position, and the first monitoring result is that the arc extinguishing coil 6 is abnormal, and includes the gear increase suggestion information. In the second case, the gear position of the arc extinguishing coil 6 is greater than the optimal gear position, and the first monitoring result is that the arc extinguishing coil 6 is abnormal, and includes the gear decrease suggestion information.

[0068] S250. If the optimal reactance value is less than the minimum reactance value of the arc extinguishing coil 6, and the single-phase grounding fault current compensated by the arc extinguishing coil 6 at the minimum reactance value is greater than the preset threshold, then the second monitoring result is that the capacity of the arc extinguishing coil 6 is insufficient, and includes a warning message corresponding to the insufficient capacity of the arc extinguishing coil 6.

[0069] The warning information may include the time when the second monitoring result is generated, the identification of the arc extinguishing coil 6, the replacement suggestion information of the arc extinguishing coil 6, etc. For example, 2022.4.21, 12:12:23, the capacity of the XX arc extinguishing coil 6 is insufficient, and it is recommended to immediately replace the XX arc extinguishing coil 6. The value range of the preset threshold can be [5A-10A].

[0070] Specifically, if the optimal reactance value is less than the minimum reactance value of the arc extinguishing coil 6, and the arc extinguishing coil 6 performs single-phase grounding fault compensation at the minimum reactance value, and the single-phase grounding fault current is greater than the preset threshold, then a second monitoring result of insufficient capacity of the arc extinguishing coil 6 is obtained. The second monitoring result also includes a warning message corresponding to the insufficient capacity of the arc extinguishing coil 6.

[0071] The technical solution of the embodiment of the present invention obtains the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc extinguishing coil 6, obtains the optimal reactance value of the arc extinguishing coil 6 based on the distributed capacitance value to the ground, and obtains the optimal gear of the arc extinguishing coil 6 based on the optimal reactance value. If the optimal gear is the same as the current gear of the arc extinguishing coil 6, the first monitoring result is that the arc extinguishing coil 6 operates normally, or if the optimal gear is higher than the current gear of the arc extinguishing coil 6, the first monitoring result is that the arc extinguishing coil 6 operates abnormally, and includes the recommended information for increasing the gear corresponding to the abnormal operation of the arc extinguishing coil 6, or if the optimal gear is lower than the current gear of the arc extinguishing coil 6, the first monitoring result is that the arc extinguishing coil 6 operates abnormally, and includes the recommended information for decreasing the gear corresponding to the abnormal operation of the arc extinguishing coil 6. If the optimal reactance value is less than the minimum reactance value of the arc extinguishing coil 6, and the single-phase grounding fault current compensated by the arc extinguishing coil 6 at the minimum reactance value is greater than the preset threshold, the second monitoring result is that the capacity of the arc extinguishing coil 6 is insufficient, and includes a warning message corresponding to the insufficient capacity of the arc extinguishing coil 6. Through the technical solution of the embodiment of the present invention, it is possible to determine whether the operating status of the arc extinguishing coil 6 is abnormal, and give corresponding suggestion information in the case of abnormality, determine whether the capacity of the arc extinguishing coil 6 is insufficient, and give a warning message when it is determined that the capacity of the arc extinguishing coil 6 is insufficient, thereby improving the accuracy of monitoring the operation of the arc extinguishing coil 6, and due to the output of suggestion information and / or warning information, it provides convenience for the subsequent work of the staff.

[0072] Embodiment 3

[0073] Figure 3 A pre-adjustable arc extinguishing coil operation status monitoring system is provided in an embodiment of the present invention. The pre-adjustable arc extinguishing coil operation status monitoring system in an embodiment of the present invention can execute the debugging arc extinguishing coil operation status monitoring method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method. The system includes: a signal generator 1, a broadband coupling transformer 2, a sensor module 3, and a data processing module 4.

[0074] The signal generator 1 is used to transmit a sinusoidal voltage to the power system; it should be understood that the signal generator here refers to the external power supply in the above embodiment.

[0075] One side of the coupling transformer 2 is connected to the signal generator 1, and the other side winding is connected in series between the arc suppression coil 6 and the ground, so as to couple the sinusoidal voltage generated by the signal generator 1 to the neutral point of the system. Optionally, the other side of the coupling transformer 2 can also be connected in series between the neutral point of the power system and the arc suppression coil 6.

[0076] One side of the arc extinguishing coil 6 is connected to the coupling transformer 2 , and the other side is connected to the ground transformer 5 .

[0077] The sensor module 3 is used to obtain the neutral point voltage of the power system, the coupling transformer voltage, the arc suppression coil 6 voltage, and the inductance value corresponding to the current gear position of the arc suppression coil 6.

[0078] The data processing module 4 is used to monitor the operating state of the arc extinguishing coil 6 according to the various voltages obtained by the sensor module 3, evaluate the operating state of the arc extinguishing coil 6, and provide operation and maintenance suggestions for the arc extinguishing coil 6. It should be understood that the reactance value and inductance value corresponding to each gear of the arc extinguishing coil 6 are stored in the data processing module 4, as well as the current gear of the arc extinguishing coil 6.

[0079] Optionally, the frequency and amplitude of the sinusoidal voltage generated by the signal generator 1 are adjustable. The voltage frequency is set within a preset voltage frequency range, the preset voltage frequency range is [1Hz, 100Hz], and the voltage amplitude is within the range of [0.1V, 1000V]. After the sinusoidal voltage generated by the signal generator 1 passes through the coupling transformer 2, the voltage amplitude generated on one side of the neutral point of the power system is between 10 and 2000V. And after the signal generator 1 applies the sinusoidal voltage, the voltage amplitude of any phase of the system's three-phase electricity does not exceed 115% of the nominal phase voltage of the power system.

[0080] When the data processing module 4 calculates the distributed capacitance to the ground, the signal generator 1 outputs a sinusoidal voltage with an amplitude of V0 and a frequency of 1Hz, and increases the voltage frequency with a step size of S, thereby outputting sinusoidal voltages of multiple voltage frequencies. It should be noted that the sinusoidal voltage here is the same as the target voltage in the above embodiment. The data processing module 4 obtains the system neutral point voltage and the arc extinguishing coil 6 voltage corresponding to each voltage frequency, and the voltage frequency range is [1Hz, 100Hz]. These arc extinguishing coil 6 voltages are sorted by amplitude, and the frequency corresponding to the maximum amplitude of the arc extinguishing coil 6 voltage is obtained as F0. The center value C0 of the capacitance to the ground of the power system is obtained according to the formula in the above embodiment. Two target voltage frequencies other than F0 are selected, marked as F1 and F2 respectively, and the capacitance to the ground values ​​C1 and C2 are calculated by the formula for calculating the capacitance to the ground in the above embodiment, and the average value of C1, C2 and C3 is calculated, and the average value is used as the distributed capacitance to the ground of the power system. After that, the data processing module 4 obtains the optimal reactance value according to the distributed capacitance to the ground and then obtains the optimal gear position of the arc extinguishing coil 6. And the operating status of the arc extinguishing coil 6 is monitored based on the optimal gear and the optimal reactance value. When the optimal gear is the same as the current gear of the arc extinguishing coil 6, it is determined that the arc extinguishing coil 6 is operating normally. When the optimal gear is higher than the current gear of the arc extinguishing coil 6, it is determined that the arc extinguishing coil 6 is operating abnormally, and the gear adjustment recommendation information is output. When the optimal gear is lower than the current gear of the arc extinguishing coil 6, it is determined that the arc extinguishing coil 6 is operating abnormally, and the gear adjustment recommendation information is output. When the optimal reactance value is less than the minimum reactance value of the arc extinguishing coil 6, and the minimum reactance value of the arc extinguishing coil 6 causes the compensated single-phase grounding fault current to exceed the preset threshold, it is determined that the capacity of the arc extinguishing coil 6 is insufficient, and the arc extinguishing coil 6 capacity inappropriate alarm information is output. The preset threshold value range is [5A, 10A].

[0081] The pre-adjustable arc extinguishing coil operation status monitoring system of the embodiment of the present invention realizes the operation monitoring of the pre-adjustable arc extinguishing coil and improves the monitoring efficiency and accuracy.

[0082] Embodiment 4

[0083] Figure 4 A structural schematic diagram of a pre-adjustable arc extinguishing coil operating status monitoring device provided in an embodiment of the present invention. The pre-adjustable arc extinguishing coil operating status monitoring device provided in an embodiment of the present invention can execute the pre-adjustable arc extinguishing coil operating status monitoring method provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0084] The pre-adjustable arc suppression coil operation status monitoring device of the embodiment of the present invention comprises: a data acquisition module 410, an optimal reactance value acquisition module 420, an optimal gear acquisition module 430, a first monitoring result generation module 440 and a second monitoring result generation module 450; wherein:

[0085] The data acquisition module 410 is used to obtain the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc extinguishing coil 6; the optimal reactance value acquisition module 420 is used to obtain the optimal reactance value of the arc extinguishing coil 6 based on the distributed capacitance value to the ground; the optimal gear acquisition module 430 is used to obtain the optimal gear of the arc extinguishing coil 6 based on the optimal reactance value; the first monitoring result generation module 440 is used to compare the optimal gear and the current gear of the arc extinguishing coil 6 according to the first preset rule to generate the first monitoring result of the arc extinguishing coil 6; the first monitoring result refers to the result generated based on the comparison result between the current gear of the arc extinguishing coil 6 and the optimal gear; the second monitoring result generation module 450 is used to compare the optimal reactance value and the minimum reactance value of the arc extinguishing coil 6 according to the second preset rule to generate the second monitoring result of the arc extinguishing coil; the second monitoring result refers to the result generated based on the comparison result between the minimum reactance value and the optimal reactance value of the arc extinguishing coil 6, and the minimum reactance value is the minimum value among the reactance values ​​of each gear.

[0086] Furthermore, the first monitoring result generating module 440 is further used for:

[0087] If the optimal gear position is the same as the current gear position of the arc extinguishing coil 6, the first monitoring result is that the arc extinguishing coil 6 operates normally, or

[0088] If the optimal gear is higher than the current gear of the arc extinguishing coil 6, the first monitoring result is that the arc extinguishing coil 6 is operating abnormally, and includes the gear adjustment recommendation information corresponding to the abnormal operation of the arc extinguishing coil 6, or

[0089] If the optimal gear is lower than the current gear of the arc extinguishing coil 6 , the first monitoring result is that the arc extinguishing coil 6 operates abnormally, and includes gear reduction recommendation information corresponding to the abnormal operation of the arc extinguishing coil 6 .

[0090] Furthermore, the second monitoring result generating module 450 is further used for:

[0091] If the optimal reactance value is less than the minimum reactance value of the arc extinguishing coil 6, and the single-phase grounding fault current compensated by the arc extinguishing coil 6 at the minimum reactance value is greater than the preset threshold, then the second monitoring result is that the capacity of the arc extinguishing coil 6 is insufficient, and includes a warning message corresponding to the insufficient capacity of the arc extinguishing coil 6.

[0092] Furthermore, the optimal reactance value acquisition module 420 is also used for:

[0093] The capacitive reactance value of the power system is obtained based on the distributed capacitance value to the ground, and the capacitive reactance value is used as the optimal reactance value;

[0094] The optimal gear position of the arc suppression coil 6 is obtained based on the optimal reactance value, including:

[0095] If there are at least two gears whose reactance values ​​are less than the optimal reactance value, the difference between the optimal reactance value and the reactance values ​​of at least two gears is calculated respectively, and the reactance value corresponding to the minimum difference is used as the target reactance value; the gear corresponding to the target reactance value is used as the optimal gear, or

[0096] If there is a gear whose reactance value is less than the optimal reactance value, the gear corresponding to the gear reactance value is taken as the optimal gear.

[0097] Furthermore, the data acquisition module 410 is also used for:

[0098] Obtaining the neutral point voltage and arc suppression coil 6 voltage of the power system at multiple voltage frequencies within a preset voltage frequency range, where the voltage frequency refers to the voltage frequency of an external power supply, and the external power supply is used to input a sinusoidal voltage to the power system;

[0099] For multiple arc extinguishing coil 6 voltages, the maximum amplitude of the arc extinguishing coil 6 voltage is obtained, and the voltage frequency corresponding to the maximum amplitude is used as the center voltage frequency;

[0100] Based on the center voltage frequency and the inductance value of the arc suppression coil 6 at the current gear, the center value of the capacitance to ground is obtained;

[0101] Selecting a preset number of voltage frequencies other than a center voltage frequency from a plurality of voltage frequencies as target voltage frequencies, and obtaining a capacitance value to ground corresponding to each target voltage frequency;

[0102] The center value of the ground capacitance and an average value of a preset number of ground capacitance values ​​are calculated, and the average value is determined as the ground distributed capacitance value.

[0103] Furthermore, the data acquisition module 410 is also used for:

[0104]

[0105] Among them, C0 is the center value of the capacitance to ground, L is the inductance value corresponding to the current gear of the arc extinguishing coil 6, and F0 is the voltage frequency corresponding to the maximum amplitude of the voltage of the arc extinguishing coil 6.

[0106] Furthermore, the data acquisition module 410 is also used for:

[0107] The capacitance value to ground corresponding to each target voltage frequency is obtained by the following formula;

[0108]

[0109] Among them, C n is the nth capacitance to ground, F n is the target voltage frequency, L is the inductance value corresponding to the current gear of the arc extinguishing coil 6, and U1 is the target voltage frequency F nThe arc suppression coil 6 voltage, U2 is the target voltage frequency F n The neutral point voltage.

[0110] The technical solution of the embodiment of the present invention is achieved by obtaining the distributed capacitance value to the ground and the gear reactance value corresponding to each gear of the arc extinguishing coil 6. The optimal reactance value of the arc extinguishing coil 6 is obtained based on the comparison of the distributed capacitance value, and the optimal gear of the arc extinguishing coil 6 is obtained based on the optimal reactance value. According to the first preset rule, the optimal gear and the current gear of the arc extinguishing coil 6 are compared to obtain a comparison result, and a first monitoring result is generated based on the comparison result. According to the second preset rule, the optimal reactance value and the minimum reactance value of the arc extinguishing coil 6 are compared to generate a second monitoring result, and the second monitoring result refers to the result generated based on the comparison result of the minimum reactance value and the optimal reactance value of the arc extinguishing coil 6. Through the technical solution of the embodiment of the present invention, the operating status of the arc extinguishing coil 6 is monitored, and the accuracy of monitoring is improved.

[0111] It is worth noting that the various modules included in the above-mentioned device are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; in addition, the specific names of the various functional modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the embodiments of the present invention.

[0112] Embodiment 5

[0113] Figure 5 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. Figure 5 A block diagram of an exemplary electronic device 50 suitable for implementing exemplary embodiments of the present invention is shown. Figure 5 The electronic device 50 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0114] like Figure 5 As shown, the electronic device 50 is in the form of a general computing device. The components of the electronic device 50 may include but are not limited to: one or more processors or processing units 501, a system memory 502, and a bus 503 connecting different system components (including the system memory 502 and the processing unit 501).

[0115] Bus 503 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor or a local bus using any of a variety of bus structures. For example, these architectures include but are not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus and Peripheral Component Interconnect (PCI) bus.

[0116] The electronic device 50 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the electronic device 50, including volatile and non-volatile media, removable and non-removable media.

[0117] System memory 502 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 504 and / or cache memory 505. Electronic device 50 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 506 may be used to read and write non-removable, non-volatile magnetic media ( Figure 5 not shown, usually called a "hard drive"). Although Figure 5 Not shown in the figure, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 503 via one or more data medium interfaces. The memory 502 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the embodiments of the present invention.

[0118] A program / utility 508 having a set (at least one) of program modules 507 may be stored, for example, in the memory 502, such program modules 507 including but not limited to an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. The program modules 507 generally perform the functions and / or methods of the embodiments described herein.

[0119] The electronic device 50 may also communicate with one or more external devices 509 (e.g., keyboards, pointing devices, displays 510, etc.), may communicate with one or more devices that enable a user to interact with the electronic device 50, and / or communicate with any device that enables the electronic device 50 to communicate with one or more other computing devices (e.g., a network card, a modem, etc.). Such communication may be performed through an input / output (I / O) interface 511. Furthermore, the electronic device 50 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 512. As shown, the network adapter 512 communicates with other modules of the electronic device 50 through the bus 503. It should be understood that although Figure 5Not shown, other hardware and / or software modules may be used in conjunction with the electronic device 50, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0120] The processing unit 501 executes various functional applications and data processing by running the programs stored in the system memory 502, such as implementing the method for monitoring the operating status of the pre-adjustable arc suppression coil provided in the embodiment of the present invention.

[0121] Embodiment 6

[0122] The embodiment of the present invention further provides a storage medium containing computer executable instructions, wherein the computer executable instructions are used to execute a method for monitoring the operation status of a pre-adjustable arc suppression coil when executed by a computer processor, the method comprising:

[0123] Obtain the distributed capacitance value to ground and the gear reactance value corresponding to each gear of the arc extinguishing coil 6; obtain the optimal reactance value of the arc extinguishing coil 6 based on the distributed capacitance value to ground; obtain the optimal gear of the arc extinguishing coil 6 based on the optimal reactance value; compare the optimal gear and the current gear of the arc extinguishing coil 6 according to the first preset rule, and generate a first monitoring result of the arc extinguishing coil 6; the first monitoring result refers to the result generated based on the comparison result between the current gear of the arc extinguishing coil 6 and the optimal gear; compare the optimal reactance value and the minimum reactance value of the arc extinguishing coil 6 according to the second preset rule, and generate a second monitoring result of the arc extinguishing coil; the second monitoring result refers to the result generated based on the comparison result between the minimum reactance value and the optimal reactance value of the arc extinguishing coil 6, and the minimum reactance value is the minimum value among the reactance values ​​of each gear.

[0124] The computer storage medium of the embodiment of the present invention can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0125] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0126] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0127] Computer program code for performing the operation of embodiments of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" or similar programming languages. The program code may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0128] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for monitoring the operation status of a pre-adjustable arc suppression coil, characterized in that: include: Obtain the distributed capacitance value to ground and the gear reactance value corresponding to each gear of the arc suppression coil; Obtaining an optimal reactance value of the arc suppression coil based on the distributed capacitance to ground; Obtaining the optimal gear position of the arc extinguishing coil based on the optimal reactance value; Comparing the optimal gear position and the current gear position of the arc extinguishing coil according to a first preset rule to generate a first monitoring result of the arc extinguishing coil; the first monitoring result is generated based on the comparison result between the current gear position of the arc extinguishing coil and the optimal gear position; The optimal reactance value and the minimum reactance value of the arc extinguishing coil are compared according to a second preset rule to generate a second monitoring result of the arc extinguishing coil; the second monitoring result refers to the result generated based on the comparison result of the minimum reactance value and the optimal reactance value of the arc extinguishing coil, and the minimum reactance value is the minimum value of the reactance values ​​of each gear; The obtaining of the ground distributed capacitance value comprises: Obtaining a neutral point voltage and an arc suppression coil voltage of a power system at multiple voltage frequencies within a preset voltage frequency range, wherein the voltage frequency refers to a voltage frequency of an external power supply, and the external power supply is used to input a sinusoidal voltage to the power system; For multiple arc extinguishing coil voltages, obtaining the maximum amplitude of the arc extinguishing coil voltage, and taking the voltage frequency corresponding to the maximum amplitude as the center voltage frequency; Based on the center voltage frequency and the inductance value of the arc suppression coil at the current gear, a center value of the capacitance to ground is obtained; Selecting a preset number of voltage frequencies other than the central voltage frequency from the multiple voltage frequencies as target voltage frequencies, and obtaining a capacitance value to ground corresponding to each target voltage frequency; Calculating an average value of the ground capacitance center value and a preset number of ground capacitance values, and determining the average value as a ground distributed capacitance value; The method of obtaining the optimal reactance value of the arc suppression coil based on the distributed capacitance to ground comprises: Obtaining a capacitive reactance value of the power system based on the distributed capacitance value to the ground, and using the capacitive reactance value as an optimal reactance value; The method of obtaining the optimal gear position of the arc suppression coil based on the optimal reactance value includes: If there are at least two gears whose reactance values ​​are less than the optimal reactance value, the difference between the optimal reactance value and the at least two gears' reactance values ​​is calculated respectively, and the reactance value corresponding to the minimum difference is used as the target reactance value, and the gear corresponding to the target reactance value is used as the optimal gear, or If there is a gear position whose reactance value is less than the optimal reactance value, the gear position corresponding to the gear position reactance value is taken as the optimal gear position; The step of comparing the optimal gear position and the current gear position of the arc extinguishing coil according to the first preset rule to generate a first monitoring result of the arc extinguishing coil includes: If the optimal gear position is the same as the current gear position of the arc extinguishing coil, the first monitoring result is that the arc extinguishing coil operates normally, or If the optimal gear is higher than the current gear of the arc extinguishing coil, the first monitoring result is that the arc extinguishing coil is operating abnormally, and includes gear adjustment recommendation information corresponding to the abnormal operation of the arc extinguishing coil, or If the optimal gear is lower than the current gear of the arc extinguishing coil, the first monitoring result is that the arc extinguishing coil is operating abnormally, and includes gear reduction recommendation information corresponding to the abnormal operation of the arc extinguishing coil; The step of comparing the optimal reactance value and the minimum reactance value of the arc extinguishing coil according to the second preset rule to generate a second monitoring result of the arc extinguishing coil includes: If the optimal reactance value is less than the minimum reactance value of the arc suppression coil, and the single-phase grounding fault current compensated by the arc suppression coil at the minimum reactance value is greater than a preset threshold, then the second monitoring result is that the capacity of the arc suppression coil is insufficient, and includes a warning message corresponding to the insufficient capacity of the arc suppression coil.

2. The method for monitoring the operation status of the pre-adjustable arc suppression coil according to claim 1 is characterized in that: The method of obtaining the center value of the ground capacitance based on the center voltage frequency and the inductance value of the arc suppression coil at the current gear position includes: Among them, C0 is the center value of the ground capacitance, L is the inductance value corresponding to the current gear of the arc suppression coil, and F0 is the voltage frequency corresponding to the maximum amplitude of the arc suppression coil voltage.

3. The method for monitoring the operation status of the pre-adjustable arc suppression coil according to claim 1 is characterized in that: The obtaining of the capacitance value to ground corresponding to each target voltage frequency includes: The capacitance value to ground corresponding to each target voltage frequency is obtained by the following formula; Among them, C n is the nth capacitance to ground, F n is the target voltage frequency, L is the inductance value corresponding to the current gear of the arc suppression coil, and U1 is the target voltage frequency F n The arc suppression coil voltage, U2 is the target voltage frequency F n The neutral point voltage.

4. A pre-adjustable arc suppression coil operation status monitoring device, characterized in that: include: A data acquisition module is used to obtain the ground distributed capacitance value and the gear reactance value corresponding to each gear of the arc suppression coil; An optimal reactance value acquisition module, used to obtain the optimal reactance value of the arc suppression coil based on the distributed capacitance value to the ground; An optimal gear position acquisition module, used to obtain the optimal gear position of the arc extinguishing coil based on the optimal reactance value; A first monitoring result generating module, used for comparing the optimal gear position and the current gear position of the arc extinguishing coil according to a first preset rule to generate a first monitoring result of the arc extinguishing coil; the first monitoring result refers to the result generated based on the comparison result between the current gear position of the arc extinguishing coil and the optimal gear position; A second monitoring result generating module, used for comparing the optimal reactance value and the minimum reactance value of the arc extinguishing coil according to a second preset rule to generate a second monitoring result of the arc extinguishing coil; the second monitoring result refers to the result generated based on the comparison result of the minimum reactance value and the optimal reactance value of the arc extinguishing coil, and the minimum reactance value is the minimum value of the reactance values ​​of each gear; The data acquisition module is also used for: Obtaining a neutral point voltage and an arc suppression coil voltage of a power system at multiple voltage frequencies within a preset voltage frequency range, wherein the voltage frequency refers to a voltage frequency of an external power supply, and the external power supply is used to input a sinusoidal voltage to the power system; For multiple arc extinguishing coil voltages, obtaining the maximum amplitude of the arc extinguishing coil voltage, and taking the voltage frequency corresponding to the maximum amplitude as the center voltage frequency; Based on the center voltage frequency and the inductance value of the arc suppression coil at the current gear, a center value of the capacitance to ground is obtained; Selecting a preset number of voltage frequencies other than the central voltage frequency from the multiple voltage frequencies as target voltage frequencies, and obtaining a capacitance value to ground corresponding to each target voltage frequency; Calculating an average value of the ground capacitance center value and a preset number of ground capacitance values, and determining the average value as a ground distributed capacitance value; The optimal reactance value acquisition module is also used for: Obtaining a capacitive reactance value of the power system based on the distributed capacitance value to the ground, and using the capacitive reactance value as an optimal reactance value; The method of obtaining the optimal gear position of the arc suppression coil based on the optimal reactance value includes: If there are at least two gears whose reactance values ​​are less than the optimal reactance value, the difference between the optimal reactance value and the at least two gears' reactance values ​​is calculated respectively, and the reactance value corresponding to the minimum difference is used as the target reactance value, and the gear corresponding to the target reactance value is used as the optimal gear, or If there is a gear position whose reactance value is less than the optimal reactance value, the gear position corresponding to the gear position reactance value is taken as the optimal gear position; The first monitoring result generating module is further used for: If the optimal gear position is the same as the current gear position of the arc extinguishing coil, the first monitoring result is that the arc extinguishing coil operates normally, or If the optimal gear is higher than the current gear of the arc extinguishing coil, the first monitoring result is that the arc extinguishing coil is operating abnormally, and includes gear adjustment recommendation information corresponding to the abnormal operation of the arc extinguishing coil, or If the optimal gear is lower than the current gear of the arc extinguishing coil, the first monitoring result is that the arc extinguishing coil is operating abnormally, and includes gear reduction recommendation information corresponding to the abnormal operation of the arc extinguishing coil; The second monitoring result generating module is further used for: If the optimal reactance value is less than the minimum reactance value of the arc suppression coil, and the single-phase grounding fault current compensated by the arc suppression coil at the minimum reactance value is greater than a preset threshold, then the second monitoring result is that the capacity of the arc suppression coil is insufficient, and includes a warning message corresponding to the insufficient capacity of the arc suppression coil.

5. An electronic device, characterized in that: The electronic device comprises: one or more processors; a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the method for monitoring the operating status of the pre-adjustable arc suppression coil as described in any one of claims 1-3.

6. A storage medium comprising computer executable instructions, wherein the computer executable instructions, when executed by a computer processor, are used to execute the method for monitoring the operating status of a pre-adjustable arc suppression coil as described in any one of claims 1 to 3.

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