A method and system for monitoring the loss of a double bus double section wiring bus differential protection release pressure plate

Abstract

The application discloses a kind of double female double subsection connection wiring female difference protection start malfunction pressure plate monitoring method and system, comprising: non-contact voltage acquisition sensor obtains the potential information of each acquisition point, and potential information is uploaded to the data analysis of preserver main station;Preserver main station carries out logical discrimination according to the result of data analysis, determines the input condition of loop malfunction pressure plate;According to the result of logical discrimination, judge whether it needs to push pressure plate missed investment alarm, complete the monitoring of female difference protection start malfunction pressure plate;The method provided by the application can timely find the input condition of loop malfunction pressure plate by real-time monitoring and analysis of the potential information of each acquisition point, uses automatic monitoring and discrimination mode, reduces the demand of manual intervention, improves monitoring and protection efficiency, judges whether it needs to push pressure plate missed investment alarm according to the result of logical discrimination, avoids false alarm and the situation of missing report, improves alarm accuracy and reliability.

Description

Technical Field

[0001] This invention relates to the field of pressure plate monitoring technology, specifically to a method and system for monitoring pressure plate failure of dual busbar dual-segment wiring bus differential protection. Background Technology

[0002] Double-busbar, double-section bus differential protection is a commonly used power system protection method. It has the ability to quickly detect and disconnect busbar short-circuit faults in the power system, thereby ensuring the safety and reliability of the power system. However, due to the involvement of multiple devices and complex wiring relationships, this protection method also suffers from some failure issues, such as false tripping and misjudgment, which significantly reduces its protection effect on the power system.

[0003] Currently, pressure plate monitoring technology is limited to monitoring the position of the pressure plate. It can only detect the position of the pressure plate when it is engaged, but there is no reliable monitoring method or analysis method to determine whether the pressure plate is reliably engaged in the electrical circuit or whether there are any loose connections. The problems with current double-busbar double-section wiring bus differential protection failure and pressure plate monitoring technology are still quite prominent. Further research and development and application promotion are needed in multiple areas to drive the further development of power system protection and building structure monitoring technologies. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the above-mentioned problems, the present invention is proposed.

[0006] A first aspect of this invention provides a method for monitoring the failure of a bus differential protection switch in a dual-bus, dual-section wiring configuration. The method includes: acquiring potential information at each acquisition point using a non-contact voltage acquisition sensor and uploading the potential information to a data protection master station for data analysis; the data protection master station performing logical judgment based on the data analysis results to determine the activation status of the circuit failure switch; and determining whether a switch failure alarm needs to be pushed based on the logical judgment results, thereby completing the monitoring of the bus differential protection failure switch.

[0007] As a preferred embodiment of the bus differential protection failure monitoring method for the double busbar double-segment wiring described in this invention, the entire monitoring system consists of a non-contact voltage acquisition sensor, an acquisition unit, an aggregation unit, a management unit, a signal protection substation, a signal protection master station, an automated OCS master station, an automated remote control unit, and a measurement and control device.

[0008] As a preferred embodiment of the bus differential protection failure monitoring method for dual-busbar dual-section wiring described in this invention, the acquisition of potential information at each acquisition point includes...

[0009] The real-time potential of the hard plate is acquired by the non-contact voltage acquisition sensor, and the real-time potential signal is converted into a digital signal and sent to the aggregation unit. The hard plate is connected in series through a secondary cable, and the non-contact voltage acquisition sensor is installed at both ends of the hard plate.

[0010] The signals from multiple acquisition units in the same protection cabinet are collected and uploaded to the management unit. The management unit transmits the potential signals to the protection information substation via the 61850 protocol. The protection information substation transmits various potential, alarm, self-test, analog, and switch data of the protection devices in the station to the protection information master station via the 103 protocol or the 61850 protocol for data analysis.

[0011] As a preferred embodiment of the method for monitoring the failure of the bus differential protection gate in a double-busbar, double-section wiring configuration according to the present invention, the monitoring requirements for the bus differential protection outlet gate in a double-busbar, double-section wiring configuration include:

[0012] The bus tie and sectional circuit breaker failure start-up pressure plates of the bus protection need to be reliably engaged and disengaged to ensure correct protection operation. Therefore, the configuration of double bus double sectional bus differential protection is as follows: I-III bus differential protection A and B sets, III-IV bus differential protection A and B sets, II-IV bus differential protection A and B sets, I-II bus differential protection A and B sets, numbered 1, 2, 3, 4, 5, 6, 7, and 8 sets of protection in sequence.

[0013] As a preferred embodiment of the dual-busbar dual-section wiring bus differential protection start-up failure monitoring method of the present invention, wherein: the logical discrimination includes,

[0014] The main station of the security system performs logical judgment based on the results of the data analysis to determine the activation status of the faulty pressure plates of circuits 1 to 8;

[0015] If U1 = U -KM ±ΔU KM &U2=U -KM ±ΔU KM &U3=U -KM ±ΔU KM This indicates that all pressure plates in the corresponding circuits of circuits 1 to 8 are in the closed position, meaning that all pressure plates are normally engaged for monitoring and no alarm needs to be triggered. Here, U1, U2, and U3 represent the collected potential information. -KM Indicates the negative bus voltage of the control bus, ΔU KM The '&' indicates the error in the voltage acquired by the non-contact voltage acquisition sensor, and '&' represents a logical AND operation.

[0016] As a preferred embodiment of the method for monitoring the failure of the bus differential protection control plate in a double-busbar, double-section wiring configuration as described in this invention, it further includes:

[0017] If U1=±ΔU KM &U2=U -KM ±ΔU KM &U3=U -KM ±ΔU KM If the point number in the circuit corresponding to U1 is in the wrong position, then the point number corresponding to the abnormal U1 is found by comparing the monitoring circuit electrical number matrix table, and then the corresponding pressure plate x is found in the potential monitoring node definition table through the point number, and the pressure plate x is pushed to trigger a missed alarm.

[0018] If U1=±ΔU KM &U2=±ΔU KM &U3=U -KM ±ΔU KM If the point number in the circuit corresponding to U2 is in the wrong position, then the point number corresponding to the abnormal U2 is found by comparing the monitoring circuit electrical number matrix table, and then the corresponding pressure plate x is found in the potential monitoring node definition table through the point number, and the pressure plate x is pushed to trigger a missed alarm.

[0019] If U1=±ΔU KM &U2=±ΔU KM &U3=±ΔU KM If the point number in the circuit corresponding to U3 is in the wrong position, then the point number corresponding to the abnormal U3 is found by comparing the monitoring circuit electrical number matrix table, and then the corresponding pressure plate x is found in the potential monitoring node definition table through the point number, and the pressure plate x is pushed to trigger a missed alarm.

[0020] As a preferred embodiment of the bus differential protection start-up failure monitoring method of the present invention, the method is as follows: it is determined whether to push a fault alarm based on the result of the logic judgment. If it is determined that an alarm is required according to the process logic, an alarm message is pushed to the monitoring and control interface of the main station. After receiving the alarm message, the operator will process it in a timely manner, thereby completing the monitoring of the bus differential protection start-up failure pressure plate.

[0021] A second aspect of the present invention provides a monitoring system for the failure of a bus differential protection switch in a dual-busbar, dual-section wiring configuration, comprising:

[0022] The data analysis unit is used to upload the potential information of each acquisition point to the main station for data analysis after the non-contact voltage acquisition sensor acquires the potential information;

[0023] The logic discrimination unit is used by the main station of the information security system to perform logic discrimination based on the results of the data analysis to determine the activation status of the circuit failure pressure plate;

[0024] The missed alarm unit is used to determine whether to push a missed alarm for the pressure plate based on the result of the logic judgment, and to complete the monitoring of the pressure plate that fails to start the differential protection.

[0025] A third aspect of the present invention provides an apparatus, the apparatus comprising,

[0026] processor;

[0027] Memory used to store processor-executable instructions;

[0028] The processor is configured to invoke instructions stored in the memory to execute the method described in any embodiment of the present invention.

[0029] A fourth aspect of the present invention provides a computer-readable storage medium having stored thereon computer program instructions, including:

[0030] When the computer program instructions are executed by the processor, they implement the method as described in any embodiment of the present invention.

[0031] The beneficial effects of this invention are as follows: This invention provides a method and system for monitoring the failure of a circuit malfunctioning circuit breaker in a double-busbar, double-section wiring differential protection system. By real-time monitoring and analysis of the potential information at each acquisition point, the system can promptly detect the activation status of the circuit malfunctioning circuit breaker. The automated monitoring and judgment method reduces the need for manual intervention, improves monitoring and protection efficiency, and determines whether a circuit breaker failure alarm needs to be pushed based on the results of logical judgment, avoiding false alarms and missed alarms, thus improving alarm accuracy and reliability. Furthermore, this invention effectively improves protection performance and monitoring accuracy, and has broad application prospects and promotional value. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0033] Figure 1 The present invention provides a flowchart of a method and system for monitoring the busbar failure protection pressure plate of a double-busbar double-section connection bus differential protection.

[0034] Figure 2 A schematic diagram of the double busbar double-section wiring method and system for monitoring the failure of the differential protection pressure plate of the double busbar double-section wiring provided by the present invention;

[0035] Figure 3The present invention provides a schematic diagram of the secondary circuit for the failure protection of a busbar double-section wiring differential protection circuit. Detailed Implementation

[0036] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0039] This invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0040] Furthermore, in the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this invention should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Example 1

[0043] Reference Figures 1-3 As an embodiment of the present invention, this embodiment takes a double busbar double segmented wiring as an example, such as... Figure 2 As shown, the busbar operation modes are divided into the following common operation modes: ① Section 11 out of service, ② Section 21 out of service, ③ Bus tie 12 out of service, ④ Bus tie 22 out of service, ⑤ Bus tie 12 and 22 out of service, and ⑥ Section 11 and 21 out of service. In the figure, 201 and 202 represent main transformer circuit breakers, 211 and 221 represent busbar section circuit breakers, 213 and 224 represent line circuit breakers, 212 and 222 represent bus tie circuit breakers, 2011 and 2012 represent disconnecting switches on both sides of circuit breaker 201, 2021 and 2022 represent disconnecting switches on both sides of circuit breaker 202, 2131 and 2132 represent disconnecting switches on both sides of circuit breaker 213, and 2141 and 2142 represent disconnecting switches on both sides of circuit breaker 214.

[0044] The first aspect of this invention discloses a method for monitoring the failure of a bus differential protection switch in a dual-busbar, dual-section wiring configuration, comprising:

[0045] S1: The non-contact voltage acquisition sensor obtains the potential information at each acquisition point and uploads the potential information to the main data acquisition station for data analysis. It should be noted that:

[0046] The entire pressure plate monitoring system consists of a non-contact voltage acquisition sensor, acquisition unit, aggregation unit, management unit, signal protection substation, signal protection master station, automated OCS master station, automated remote control unit, and measurement and control device;

[0047] Furthermore, the acquisition of potential information at each sampling point includes,

[0048] The real-time potential of the hard plate is acquired by a non-contact voltage acquisition sensor, and the real-time potential signal is converted into a digital signal and sent to the aggregation unit. The hard plate is connected in series through a secondary cable, and the non-contact voltage acquisition sensor is installed at both ends of the hard plate.

[0049] The signals from multiple acquisition units in the same protection cabinet are collected and uploaded to the management unit. The management unit transmits the potential signals to the protection information substation via the 61850 protocol. The protection information substation transmits various potential, alarm, self-test, analog, and switch data of the protection devices in the station to the protection information master station via the 103 protocol or the 61850 protocol for data analysis.

[0050] S2: The main station of the insurance information system performs logical judgment based on the data analysis results to determine the activation status of the circuit failure pressure plate. It should be noted that:

[0051] The monitoring requirements for the differential pressure plate at the outlet of a double busbar double-section connection include:

[0052] like Figure 3 As shown, the bus tie and sectional circuit breaker failure start-up pressure plates of the bus protection need to be reliably engaged and disengaged to ensure the correct operation of the protection. Therefore, the configuration of the double bus double sectional bus differential protection is as follows: I-III bus differential protection A and B sets, III-IV bus differential protection A and B sets, II-IV bus differential protection A and B sets, I-II bus differential protection A and B sets, numbered 1, 2, 3, 4, 5, 6, 7, and 8 sets of protection in sequence.

[0053] Furthermore, logical judgment includes,

[0054] Based on the data analysis results, the main station of Baoxin conducts logical judgment to determine the activation status of the faulty pressure plates in circuits 1 to 8;

[0055] If U1 = U -KM ±ΔU KM &U2=U -KM ±ΔU KM &U3=U -KM ±ΔU KM This indicates that all pressure plates in the corresponding circuits of circuits 1 to 8 are in the closed position, meaning that all pressure plates are normally engaged for monitoring and no alarm needs to be triggered. Here, U1, U2, and U3 represent the collected potential information. -KM Indicates the negative bus voltage of the control bus, ΔU KM This indicates the error in the voltage acquired by the non-contact voltage acquisition sensor; & represents a logical AND operation.

[0056] If U1=±ΔU KM &U2=U -KM ±ΔU KM &U3=U -KM ±ΔU KM If the point number in the circuit corresponding to U1 is in the wrong position, then the point number corresponding to the abnormal U1 is found by comparing the monitoring circuit electrical number matrix table, and then the corresponding pressure plate x is found in the potential monitoring node definition table through the point number, and a pressure plate x failure alarm is pushed.

[0057] If U1=±ΔU KM&U2=±ΔU KM &U3=U -KM ±ΔU KM If the point number in the circuit corresponding to U2 is in the wrong position, then the point number corresponding to the abnormal U2 is found by comparing the monitoring circuit electrical number matrix table, and then the corresponding pressure plate x is found in the potential monitoring node definition table through the point number, and a pressure plate x failure alarm is pushed.

[0058] If U1=±ΔU KM &U2=±ΔU KM &U3=±ΔU KM If the point number in the circuit corresponding to U3 is in the wrong position, then the point number corresponding to the abnormal U3 is found by comparing the monitoring circuit electrical number matrix table, and then the corresponding pressure plate x is found in the potential monitoring node definition table through the point number, and a pressure plate x failure alarm is pushed.

[0059] It should be noted that the monitoring loop electrical number matrix table is shown in Table 1, and the potential monitoring node definition table is shown in Table 2.

[0060] Table 1: Monitoring loop point number matrix.

[0061]

[0062] Table 2: Definition of Potential Monitoring Nodes.

[0063]

[0064]

[0065] S3: Based on the result of the logical judgment, determine whether to push a pressure plate failure alarm, and complete the monitoring of the bus differential protection failure pressure plate. It should be noted that:

[0066] Based on the result of the logical judgment, it is determined whether an alarm for the faulty circuit board needs to be pushed. If the process logic determines that an alarm is needed, the alarm information is pushed to the monitoring and control interface of the main station. After receiving the alarm information, the operator will handle it in a timely manner, thereby completing the monitoring of the faulty circuit board of the bus differential protection.

[0067] It should be noted that this invention provides a method and system for monitoring the failure of a circuit malfunctioning circuit breaker in a dual-bus, dual-section wiring differential protection system. By real-time monitoring and analysis of the potential information at each acquisition point, the system can promptly detect the activation status of the circuit malfunctioning circuit breaker. The automated monitoring and judgment method reduces the need for manual intervention, improves monitoring and protection efficiency, and determines whether a circuit breaker failure alarm needs to be pushed based on the logical judgment results, avoiding false alarms and missed alarms, thus improving alarm accuracy and reliability. Furthermore, this invention effectively improves protection performance and monitoring accuracy, and has broad application prospects and promotional value.

[0068] The second aspect disclosed in this invention,

[0069] A dual-busbar, dual-section wiring bus differential protection failure monitoring system is provided, comprising:

[0070] The data analysis unit is used to upload the potential information from each acquisition point to the main station for data analysis after the non-contact voltage acquisition sensor acquires the potential information;

[0071] The logic discrimination unit is used by the main station to perform logical discrimination based on the results of data analysis to determine the activation status of the circuit failure pressure plate;

[0072] The missed alarm unit is used to determine whether to push a missed alarm for the pressure plate based on the result of logical judgment, and to complete the monitoring of the pressure plate that fails to start the differential protection.

[0073] The third aspect disclosed in this invention,

[0074] A device is provided, comprising:

[0075] processor;

[0076] Memory used to store processor-executable instructions;

[0077] The processor is configured to invoke instructions stored in memory to execute any of the aforementioned methods.

[0078] The fourth aspect disclosed in this invention,

[0079] A computer-readable storage medium is provided, having stored thereon computer program instructions, including:

[0080] A method by which computer program instructions are executed by a processor to implement any of the foregoing.

[0081] The present invention may be a method, apparatus, system and / or computer program product, and the computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for performing various aspects of the present invention.

[0082] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0083] Example 2

[0084] This embodiment differs from the first embodiment in that it provides a verification test of a method and system for monitoring the failure of a double busbar double-segment wiring busbar differential protection start-up pressure plate, in order to verify and explain the technical effects adopted in this method.

[0085] In this embodiment, the potential information of each acquisition point is obtained by a non-contact voltage acquisition sensor and uploaded to the main station for data analysis. The main station performs logical judgment based on the data analysis results to determine the activation status of the circuit failure pressure plate. Based on the logical judgment results, it determines whether to push the pressure plate failure alarm and completes the monitoring of the bus differential protection failure pressure plate. The specific experimental data are shown in Table 3.

[0086] Table 3: Test data table for monitoring the failure of the bus differential protection start-up pressure plate in double busbar double-section wiring.

[0087]

[0088]

[0089]

[0090] As shown in Table 3, the method provided by this invention can promptly detect the activation status of circuit failure pressure plates by real-time monitoring and analysis of the potential information of each acquisition point. The use of automated monitoring and discrimination reduces the need for manual intervention and improves monitoring and protection efficiency. Based on the results of logical discrimination, it determines whether to push a pressure plate failure alarm, avoiding false alarms and missed alarms, and improving alarm accuracy and reliability.

[0091] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for monitoring the failure of a bus differential protection control plate in a double-busbar, double-section wiring configuration, characterized in that, include: A non-contact voltage acquisition sensor acquires potential information at each acquisition point and uploads the potential information to the main station for data analysis. The main station of the information security system performs logical judgment based on the results of the data analysis to determine the activation status of the circuit failure pressure plate; Based on the result of the logical judgment, determine whether it is necessary to push a pressure plate failure alarm, and complete the monitoring of the bus differential protection failure pressure plate; The monitoring requirements for the differential pressure plate at the outlet of a double busbar double-section connection include: The bus tie and sectional circuit breaker failure start-up pressure plates of the bus protection need to be reliably engaged and disengaged to ensure the correct operation of the protection. Therefore, the configuration of double bus double sectional bus differential protection is as follows: I-III bus differential protection A and B sets, III-IV bus differential protection A and B sets, II-IV bus differential protection A and B sets, I-II bus differential protection A and B sets, numbered 1, 2, 3, 4, 5, 6, 7, and 8 sets of protection in sequence. The logical discrimination includes, The main station of the security information system performs logical judgment based on the results of the data analysis to determine the activation status of the faulty pressure plates of circuits 1 to 8; like This indicates that all pressure plates in the corresponding circuits of loops 1-8 are in the closed position, meaning all pressure plates are normally engaged for monitoring and no alarm needs to be triggered. , and This indicates the collected potential information. This indicates the negative bus voltage of the control bus. This indicates the error in the voltage acquired by the non-contact voltage acquisition sensor. This represents the logical AND operation; like This means The pressure plate corresponding to the point number in the corresponding circuit is in position, that is, the anomaly is found by comparing with the monitoring circuit electrical signal matrix table. The corresponding point number is then used to find the corresponding pressure plate in the potential monitoring node definition table. x and push the pressure plate. x Missed delivery alarm; like This means The pressure plate corresponding to the point number in the corresponding circuit is in position, that is, the anomaly is found by comparing with the monitoring circuit electrical signal matrix table. The corresponding point number is then used to find the corresponding pressure plate in the potential monitoring node definition table. x and push the pressure plate. x Missed delivery alarm; like This means The pressure plate corresponding to the point number in the corresponding circuit is in position, that is, the anomaly is found by comparing with the monitoring circuit electrical signal matrix table. The corresponding point number is then used to find the corresponding pressure plate in the potential monitoring node definition table. x and push the pressure plate. x Missed delivery alarm.

2. The method for monitoring the failure of the bus differential protection start-up pressure plate in a double-bus double-section wiring configuration as described in claim 1, characterized in that: The entire pressure plate monitoring system consists of a non-contact voltage acquisition sensor, acquisition unit, aggregation unit, management unit, signal protection substation, signal protection master station, automated OCS master station, automated remote control unit, and measurement and control device.

3. The method for monitoring the failure of the differential protection switch plate in a double-busbar, double-section wiring configuration as described in claim 2, characterized in that: The acquisition of potential information at each acquisition point includes... The real-time potential of the hard plate is acquired by the non-contact voltage acquisition sensor, and the real-time potential signal is converted into a digital signal and sent to the aggregation unit. The hard plate is connected in series through a secondary cable, and the non-contact voltage acquisition sensor is installed at both ends of the hard plate. The signals from multiple acquisition units in the same protection cabinet are collected and uploaded to the management unit. The management unit transmits the potential signals to the protection information substation via the 61850 protocol. The protection information substation transmits various potential, alarm, self-test, analog, and switch data of the protection devices in the station to the protection information master station via the 103 protocol or the 61850 protocol for data analysis.

4. The method for monitoring the failure of the differential protection switch plate in a double-busbar, double-section wiring configuration as described in claim 3, characterized in that: Based on the result of the logical judgment, it is determined whether an alarm for the faulty circuit board needs to be pushed. If an alarm is required according to the process logic, an alarm message is pushed to the monitoring and control interface of the main station. After receiving the alarm message, the operator will handle it in a timely manner, thereby completing the monitoring of the faulty circuit board of the bus differential protection.

5. A monitoring system for the failure detection plate of a double-busbar double-section wiring bus differential protection, employing the monitoring method for the failure detection plate of a double-busbar double-section wiring bus differential protection as described in any one of claims 1 to 4, characterized in that, include: The data analysis unit is used to upload the potential information of each acquisition point to the main station for data analysis after the non-contact voltage acquisition sensor acquires the potential information; The logic discrimination unit is used by the main station of the information security system to perform logic discrimination based on the results of the data analysis to determine the activation status of the circuit failure pressure plate; The missed alarm unit is used to determine whether to push a missed alarm for the pressure plate based on the result of the logic judgment, and to complete the monitoring of the pressure plate that fails to start the differential protection.

6. A device, characterized in that, The device includes, processor; Memory used to store processor-executable instructions; The processor is configured to invoke instructions stored in the memory to execute the method described in any one of claims 1 to 4.

7. A computer-readable storage medium having computer program instructions stored thereon, characterized in that, When the computer program instructions are executed by the processor, they implement the method described in any one of claims 1 to 4.

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