CN110703162A - Distribution lines fuse fault detection device - Google Patents
Distribution lines fuse fault detection device Download PDFInfo
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- CN110703162A CN110703162A CN201910879760.7A CN201910879760A CN110703162A CN 110703162 A CN110703162 A CN 110703162A CN 201910879760 A CN201910879760 A CN 201910879760A CN 110703162 A CN110703162 A CN 110703162A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention relates to a fault detection device for a fuse of a distribution line, which comprises a fuse state monitoring sensor and a data terminal, wherein the fuse state monitoring sensor is connected with the data terminal; the fuse state monitoring sensor comprises a position detection module for detecting the position and/or the falling state of the fuse, a current measurement module for detecting the load current and the fault current of the fuse and a fault detection module for monitoring the fault of the fuse; monitoring data acquired by the position detection module and the current measurement module are transmitted to the fault detection module, and the fault detection module diagnoses whether the fuse has a fusing fault; and the data terminal receives and processes monitoring data sent by the fuse state monitoring sensor. The device helps operation and maintenance personnel to find fault points in time by monitoring and uploading information and data such as fault information of the fuse, the position of the fusion tube, fault current before fusing and the like, rapidly realizes fault first-aid repair and power restoration, and meanwhile, fusing current collected by the system is used as a reference for state maintenance of fuse equipment.
Description
Technical Field
The invention relates to a fault detection device for a fuse of a distribution line.
Background
In China, due to the fact that the breadth of operators is wide, economic development is unbalanced, and the development level and the automation degree of a power grid also have large regional and regional differences. The traditional distribution network automation mode has high requirements on basic conditions and large capital requirements, so that the requirement of comprehensive construction is difficult to meet. Based on the actual conditions of all levels of power supply enterprises in each region, the novel automatic system which is higher in cost performance and easier to construct can make up for the defects of construction of the distribution network automatic system and even can replace the defects in a local part, so that the system is more suitable for the current situation of urban power grids in China and the future technical development direction, and is also a correct idea for implementing rural distribution network automatic systems. At present, a drop-out fuse is adopted at the tail end of a distribution line for protection, and the method is a common and effective method, and can quickly cut off a fault through fusing of a fuse wire when a large current fault occurs on a load side, so that normal power supply of a non-fault line is ensured. In the practical application process, when the fuse wire of the fuse is blown and dropped, the fault of the power supply side is recovered, so that the fault point is difficult to find and the state of the fuse is difficult to master in time.
Disclosure of Invention
In order to overcome the above defects, the present invention provides a distribution line fuse fault detection device, so as to ensure that relevant power grid operation and maintenance managers define the actual operation condition of the fuse, solve the existing fault at the first time, accurately and timely find the fault position, and enable the fault side to realize ordered power supply.
In order to achieve the above object, the present invention adopts a technical solution comprising: the utility model provides a distribution lines fuse fault detection device which characterized in that: the fuse state monitoring system comprises a fuse state monitoring sensor and a data terminal;
the fuse state monitoring sensor comprises a position detection module for detecting the position and/or the falling state of the fuse, a current measurement module for detecting the load current and the fault current of the fuse and a fault detection module for monitoring the fault of the fuse; monitoring data acquired by the position detection module and the current measurement module are transmitted to the fault detection module, and the fault detection module diagnoses whether the fuse has a fusing fault; and the data terminal receives and processes monitoring data sent by the fuse state monitoring sensor.
The system also comprises a fault setting value module used for setting and/or modifying the fault setting value in a remote networking mode, and the fault setting value module can receive an instruction sent by an external remote controller or a main station to modify the parameters of the sensor. The data terminal receives and processes monitoring data sent by the fuse state monitoring sensor and remotely transmits the processed monitoring data to the master station; and the data terminal also receives and processes the main station instruction and sends the instruction to the fuse state monitoring sensor. The master station instruction is generally issued by the master station server, for example, the server issues the following instruction to the terminal device: requesting to check monitoring data of a certain data terminal; request specific current data, fuse position data to the master station, etc.
The data terminal is internally provided with a 4G communication module (namely a second communication module) which can receive and process data (such as instructions) sent by the main station in real time, and then sends the instructions of the main station to the fuse state monitoring sensor through a 470MHZ wireless communication technology. The position detection module may be an angle detector that detects the position (i.e., on/off state) of the fuse. The fuse state monitoring data is internally provided with a 4G communication module (a first communication module) which is used for communicating with a data terminal.
Preferably, the fuse state monitoring sensor is arranged on a fuse tube of the fuse, a closed magnetic flux loop is formed by laminating multiple layers of silicon steel sheets, and the fuse state monitoring sensor can realize locking according to the change conditions of voltage and current; the fuses are arranged at different positions of the distribution line; the data terminal is installed in the pole tower of distribution lines.
Preferably, the data terminal enters a dormant state when the data terminal does not need to process and forward the data, and processes and forwards the received data by interrupting and awakening after the data terminal receives the data; the fuse state monitoring sensor enters a dormant state after being electrified and is timed and interrupted and awakened through a timer.
Furthermore, the fuse state monitoring sensor also comprises an emergency power supply, a temperature detection module for monitoring the temperature of the fuse or the distribution line, a time synchronization module, a local alarm indication module for realizing instant alarm after the fuse fault is monitored (namely, when the fault detection module monitors the fusing fault, the fault information is transmitted to the local alarm indication module, and the local alarm indication module completes alarm), and a first communication module for communicating with the data terminal; the data terminal also comprises a second communication module used for communicating with the fuse state monitoring sensor and the master station, a time synchronization module, a fuse tube state event storage module for storing SOE records in time when the fuse is subjected to remote signaling deflection (namely separation/combination), and a remote parameter modification and program upgrading module (receiving an instruction sent by an external remote controller or the master station to modify parameters and upgrade programs of the data terminal).
Furthermore, the fuse state monitoring sensor also comprises one or more of a fault reset time module for remote networking setting and/or modifying fault reset time, a delay time module for remote networking setting and/or modifying delay time of alarm detection, a current transformation ratio coefficient module for remote networking setting and/or modifying current transformation ratio coefficient, and a load current timing remote transmission period module for remote networking setting and/or modifying load current timing remote transmission period; the fault setting value module, the fault reset time module, the delay time module, the current transformation ratio coefficient module and the load current timing remote transmission period module are all remote adjusting modules, and after receiving an instruction of a master station or an external remote controller, each remote adjusting module respectively sets and/or modifies the fault setting value, the fault reset time, the delay time, the current transformation ratio coefficient and the load current timing remote transmission period. The fault reset time module, the delay time module, the current transformation ratio coefficient module and the load current timing remote transmission period module set and modify data by receiving instructions sent by an external remote controller or a main station.
Furthermore, the current measurement module realizes real-time monitoring and timing uploading of the load current, and acquisition and immediate uploading of the fault current. The fault current refers to the fault current before fusing.
Further, the fuse state monitoring sensor and the data terminal are communicated by radio frequency, and the data terminal and the master station are communicated by GSM/GPRS.
Furthermore, the shell of the fuse state monitoring sensor is made of a polypeptide acid ester material, and epoxy resin is poured into the fuse state monitoring sensor; the surface of the data terminal is subjected to anti-corrosion treatment.
Furthermore, the data terminal is integrated with a solar panel.
Compared with the prior art, the invention has the beneficial effects that: the system helps operation and maintenance personnel to find fault points in time by monitoring and uploading information and data such as fault information of the fuse, the position of the fuse tube, fault current before fusing and the like, rapidly realizes fault first-aid repair and power restoration, and simultaneously fuses current collected by the system is used as a reference for state maintenance of fuse equipment.
Considering from practicality and economic nature, for means such as reform transform network structure, increase power equipment, strengthen patrolling and examining the intensity, distribution lines fuse on-line monitoring system is as a with low costs, take effect soon, stability is high, the nimble simple and easy type distribution automation system of network deployment, more is suitable for joining in marriage the net and carries out the full construction in urban suburb and rural area to the power supply reliability of net is joined in marriage in effectual improvement. The data terminal and the sensor are designed by adopting an ultra-low power consumption processing chip and low-energy consumption hardware, the data terminal enters a low-power consumption dormant state when the data terminal does not need to process the data, and the received data is processed and forwarded by interrupting and awakening after the received data; the sensor enters a low-power-consumption dormant state after being electrified, and is timed to be interrupted and awakened through a timer.
Drawings
FIG. 1 is a schematic diagram of the main station;
FIG. 2 is a schematic diagram of a functional interface of user account and authority management of the master station software;
FIG. 3 is a schematic diagram of a functional interface for fault location, load current and real-time lead temperature monitoring of the master station software;
FIG. 4 is a functional interface diagram of historical data and alarm information query of the master station software;
FIG. 5 is a functional interface diagram of data statistics and report printing of the host station software;
FIG. 6 is a schematic diagram of a single server system software architecture.
Detailed Description
For a better understanding of the present invention, the following examples and drawings are included to further illustrate the present invention, but the present invention is not limited to the following embodiments.
The terminal device of the distribution line fuse on-line monitoring system (model PYZ-ZR-HD) consists of a fuse state monitoring sensor and a data terminal; the master station comprises various software and hardware such as a router, a short message modem, a server, a client, master station software and the like, and can support interconnection with other operation management systems.
1. Terminal device
And the group of terminal devices consists of a fuse state monitoring data terminal and 3 fuse state monitoring sensors. The monitoring data of 3 fuse state monitoring sensors are all sent to the data terminal, and each tower is provided with a fuse state monitoring data terminal and 3 fuse state monitoring sensors.
Fuse state monitoring sensors and data terminal function and performance parameters are shown in table 1 below.
TABLE 1 FUSE STATE MONITORING DEVICE FUNCTION AND PERFORMANCE PARAMETERS TABLE
Master station of ZR-PW-SCADA2000 system
2.1 exemplary configuration
The system main station mainly comprises system software, a server, a short message modem, a UPS (uninterrupted power supply), a router, a client and the like, and the typical structure of the system main station is shown in figure 1, and the typical product model is shown in table 2.
TABLE 2 System Master station terminal Standard products List
1.2 ZR-XM1 SMS Modern
Functional module
The short message modem of the device is installed in a client, and mainly realizes the following functions:
-forwarding the alert message to the handset of the particular user
Technical index
TABLE 3 short message Modern technical index
2.3 ZR-RPC60 Server
The standard matching server adopted by the system is not lower than the technical requirements shown in the table 4.
TABLE 4 Server specifications
2.4 ZR-UPS60 UPS power supply
The standard model of the UPS power supply is ZR-UPS60, the configuration of which is shown in table 5.
TABLE 5 UPS Power supply configuration
2.5 ZR-SFI2000 System software (i.e. Master station software)
The distribution line fuse on-line fault monitoring system is a set of independent distribution network production and management application software and has the functions of distribution line management, fault position monitoring and positioning, line load and temperature real-time monitoring and the like. The ZR-SFI2000 system software is installed on a server and a client in the main station.
Part of the functional interfaces are as follows:
1. user account and rights management (FIG. 2);
2. fault location, load current and wire temperature real-time monitoring (fig. 3);
3. historical data and alarm information queries (FIG. 4);
4. data statistics and report printing (fig. 5).
In order to meet the requirement of centralized management of an electric power company, the system master station also reserves an interface, and can be integrated with production management software such as an automatic dispatching system, an automatic distribution system, a GIS system, a transformer substation integrated automation system and the like, so that fault monitoring data can be used by more departments and play a greater role. Through system integration, the following functions can be realized:
1. the monitoring system can upload the fault location information to other software, and display data such as fault position, fault time, fault type and the like on the other software. If the fault information is transmitted to a set of GIS system, the geographical condition, the driving route and the like of the fault position can be clearly shown on a map, and the efficiency of fault processing can be greatly improved.
2. The monitoring system may upload telemetry data to other software displays including line load current, temperature, status, etc.
2.5 physical architecture
The main station system adopts a B/S architecture, and the physical architecture can be a stand-alone system or a single-server client system.
The physical architecture of a typical single server consists of a server, a client and some networking equipment. For example, the following examples: the physical structure of the single server is specifically as follows: a single server is connected to several clients through Ethernet.
2.6 software architecture
The system management software structure is shown in fig. 6.
The server comprises the following software modules: the system comprises a configuration management module, an alarm management module, a log management module, a system management module, a test management module, a system analysis module, a database management module and a network server module. The client is provided with a core monitoring processing module.
The configuration management module is used for configuring the alarm data required by the client, including the receiving number of the alarm information and the like. And the alarm management module is used for displaying graphs after the main station receives the alarm information and visually finding out the fault position. And the log management module is used for recording the operation of the master station and the operation conditions of terminal equipment (such as a data terminal, fuse state monitoring data and the like). The system management module comprises a process monitoring module, a data checking module and an information storage module; the process monitoring module is used for monitoring each key process of the server in real time in the system operation process, and ensuring the output of various data information (namely data collected by the terminal equipment, such as current data and fuse position information) and alarm information (the alarm information is generated by the terminal equipment and is remotely transmitted to the main station) under the condition that a specific process has a fault; the data checking module is used for carrying out validity detection on input data of a user and monitoring data collected by the system, wherein the input data of the user are input from the server and are specific positions of each sensor and a data terminal (namely information of each fuse state monitoring sensor, a tower where the data terminal is located and a corresponding specific fuse); and the information storage module is used for recording key events in the system operation process and generated alarm recording and monitoring data information (namely data collected by the terminal equipment, such as current data and fuse position information) into corresponding logs. The test management module is used for simulating operation test and data alarm, and mainly has the function of verifying whether the whole set of service system works normally. The system analysis module is used for carrying out comprehensive analysis on the received alarm data, and the analysis content comprises current data in a fault state, fusion tube temperature data, fuse position data and the like. The database management module is used for storing and managing the received real-time monitoring data (collected by the terminal equipment) and storing and managing the analysis results of each module (except the database management module). The network server module is used for an internet topological structure, and data receiving of the server side and data sharing of the client side are achieved.
2. Principle of detection
The detection principle of the position of the fusion tube is as follows: the fuse state monitoring sensor is fixed on the fusion tube, an angle sensor is arranged in the fuse state monitoring sensor, when the fusion tube falls, the horizontal angle of the fusion tube changes, and when the horizontal angle is smaller than a threshold, the fuse falls. And when the fuse tube is closed again and the horizontal angle of the fuse tube is larger than the threshold, determining that the fuse is closed.
The current detection principle is as follows: in a few cases, when the fuse is blown, the fuse tube does not drop, whether the fuse is blown or not is diagnosed by detecting the current of the fuse, and when the current is suddenly large and quickly becomes 0 again, the fact that the fuse is blown is determined.
The PYZ-ZR-HD fuse on-line monitoring device can be arranged on a distribution line, wherein a sensor is fixed on a fuse tube of a fuse, and a data terminal is arranged on a tower and used for on-line monitoring of the operation and fault conditions of the fuse, so that the PYZ-ZR-HD fuse on-line monitoring device is a set of distributed monitoring, centralized management and instant notification type intelligent management system with remote transmission capability.
3. System function
The distribution line fuse on-line monitoring system realizes the following main functions:
remote signaling:
and judging the falling state of the fuse.
Telemetry:
monitoring and uploading load current in real time at regular time;
and collecting and immediately uploading fault current.
Remote regulation:
setting and modifying a fault setting value through remote networking;
remote networking setup and modification of fault reset time (optional);
remote networking sets and modifies alarm detection delay time (optional);
remote networking sets and modifies the current transformation ratio coefficient (optional);
remote networking sets and modifies load current timing remote cycles (optional).
4. Technical characteristics
Fault determination
The accuracy of fault judgment and fuse drop state is high, and the applicability is good.
Data acquisition
The multi-layer laminated silicon steel sheets are adopted to form a magnetic flux loop, the leakage magnetic flux is less, falling and fault information and current data of the fuse can be accurately acquired by matching various sensors with high precision and high sampling rate, and authenticity and accuracy of data sources are guaranteed.
Power supply technology
By utilizing the latest technology, the solar cell panel can be integrated on the sensor, so that the sensor can be powered by solar energy, and the service life of the device is greatly prolonged.
The closed magnetic circuit formed by the multiple layers of laminated silicon steel sheets arranged in the sensor enables the sensor to have the capability of acquiring electric energy from a circuit through electromagnetic induction, and the device can work normally in rainy days.
The sensor is provided with a built-in lithium battery as a standby power supply, and can be charged through the solar cell panel in sunny days, so that the sensor can work normally in low-load rainy days.
The data terminal can rely on a solar panel and a storage battery to supply power for the data terminal.
Communication technology
The sensor and the data terminal are communicated by adopting wireless radio frequency, so that the problems of line insulation, safe distance and the like are avoided. The data terminal and the system main station can communicate by using GSM/GPRS. The communication configuration enhances the reliability, flexibility and applicability of the system and saves a large amount of construction cost of network communication foundation.
Anti-inrush current technology
When the circuit is powered on, the sensor is provided with a locking mechanism, locking can be realized according to the change conditions of voltage and current, and false alarm caused by inrush current is prevented. After the line power supply is recovered to be stable, the terminal can automatically release the lock and recover the normal detection state.
6. Reliability and applicability design
6.1 design derating of System reliability
The device with serious power and heat used by each product in the system is strictly derated, so that the electric stress and the temperature stress born by the device in actual use are lower than the rated value of the design, and the power consumption of the battery-powered product is reduced, thereby delaying the parameter degradation and prolonging the service life of the battery-powered product.
Component selection, control and normalization
The types and specifications of components used by products in the system and manufacturers are selected according to the requirements of reliability and maintainability of the products, and the replaceability of the components and the normalization of the components are emphasized. All components are high-quality components subjected to aging tests and strict screening, and the assembly process of hardware also has strict quality control, so that high stability and high reliability in long-term use are ensured.
Thermal design
The influence of temperature change on the performance of equipment such as a sensor data terminal, a short message modem and the like is reduced through selection of devices, circuit design and structural design, heating design and heat dissipation design, so that the equipment can reliably work in a wider temperature range.
Electromagnetic compatibility design
The wireless radio frequency communication between the sensor and the data terminal is ensured not to be subjected to the impermissible degradation caused by the electromagnetic emission of other devices in the same electromagnetic environment, and also not to be subjected to the impermissible degradation caused by the electromagnetic emission of the detected terminal and the data terminal in other devices, subsystems and systems in the same electromagnetic environment.
Input voltage reliability design
The data terminal and the short message modem have the performance of resisting voltage drop and rise. The data terminal can normally work between 9V and 12V of input voltage, and the short message modeln can normally work between 180V and 260V of input alternating voltage.
6.2 hardware reliability design Structure design
The shell of the sensor is made of high-pressure and high-temperature resistant polypeptide acid ester materials, and the interior of the sensor is completely filled with epoxy resin with good insulating property, so that the sensor is completely suitable for being used in high-pressure and high-temperature environments. The whole body adopts full-closed treatment, and can reach the IP67 protection level.
The data terminal adopts a 304 stainless steel metal shell, the surface of the data terminal is plated with chromium, the corrosion of the coastal region in a high-salt humid environment can be resisted, and meanwhile, circuits in the host are sealed by waterproof shells, and the whole protection level of the data terminal can reach IP 65.
Circuit design
The sensor, the data terminal and the short message modem all adopt advanced industrial components and modules, and are high in circuit integration level, good in manufacturability and high in reliability.
6.3 software reliability design protection Performance
The system monitoring management software adopts a modular design, the design of each module is based on a loose coupling mechanism, and when one module has an error, the operation of other modules is not influenced; in addition, measures such as error checking, error isolation and the like are added, so that the system is prevented from getting ill and the reliability of the system is improved.
Fault tolerance capability
The fault tolerance of a software system is insufficient to cause a crash of the entire system when a small software failure occurs. The fault tolerance capability of the system monitoring management software is mainly embodied in the following aspects:
process monitoring: when the software runs, real-time monitoring is provided for various key processes, and a monitoring mechanism can ensure the output of various data information and alarm information under the condition of process failure. Data verification: and the software carries out validity detection on the user input data and the system collected data, so that the correct reference relation between the data is ensured. And (3) information storage: the software can automatically record key events in the running process of the system, generated alarm records and data information into corresponding logs.
6.4 System compatibility design
The interface of the system completely follows international standard interface specification IEC61970, the system can support mainstream standard protocols commonly used in the power industry such as CDT issued by ministers, CDT issued by new ministers, IEC61850, IEC870-5-101, 104 and modbus, and support management functions such as channel setting and channel state monitoring. The adoption of the standard protocol enables people to be easily compatible with other monitoring system software (such as EMS, MIS, GIS and the like) and interface interconnection.
The partial communication protocols referred to are listed below:
DL/T634-: transmission protocol basic telecontrol task matching standard
DL/T634 + 2002, (IEC870-5-104) telemechanical device and System parts 5-104: IEC60870-5-101 network Access of Transmission protocols Using the Standard transport protocol subsets
DL 451 + 1991 circulating telecontrol protocol
MODBUS _ RTU communication protocol
···
The fuse state monitoring sensor of the system can perform accurate detection on a specific fuse tube point of a fuse, can perform measurement on load current and timely measure fault current, realizes short-distance wireless of a remote controller, truly supports remote parameter adjustment of a master station, can realize functional data calling, can realize a time synchronization function of the system, and can perform self-checking work of equipment. The alarm device can give an alarm in place, measure data and upload alarm information. The fuse state monitoring data terminal can receive and process uploaded data and can realize uploading of a master station. Master station instructions can be processed and can be issued to the sensors. The time synchronization of the system can be realized. And the method covers the storage work of the SOE event, supports the self-checking of the equipment and the adjustment of remote parameters, and can realize the upgrading of the program.
The system software belongs to independent and efficient management software, can manage the distribution lines, can realize monitoring and fault location, can monitor the line load condition in real time, and can detect the temperature. The system has rich interfaces, can be connected with a plurality of management software such as a dispatching automation system and the like, and can ensure that actual monitoring information of faults can be timely applied by a plurality of departments. The monitoring system can transmit the fault information to other system software, can realize information sharing, and can improve the fault processing efficiency to a certain extent.
The monitoring system can transmit information related to remote measurement to other system software, wherein the information includes load current conditions, temperature and the like of a line. And the software is applied in a modularized design, different modules have different functions, and when the modules have abnormal conditions, the normal operation of other modules cannot be influenced, so that the overall operation of the system is more reliable.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a distribution lines fuse fault detection device which characterized in that: the fuse state monitoring system comprises a fuse state monitoring sensor and a data terminal;
the fuse state monitoring sensor comprises a position detection module for detecting the position and/or the falling state of the fuse, a current measurement module for detecting the load current and the fault current of the fuse and a fault detection module for monitoring the fault of the fuse; monitoring data acquired by the position detection module and the current measurement module are transmitted to the fault detection module, and the fault detection module diagnoses whether the fuse has a fusing fault;
and the data terminal receives and processes monitoring data sent by the fuse state monitoring sensor.
2. The distribution line fuse fault detection device of claim 1, wherein: the fuse state monitoring sensor further comprises a fault setting value module used for setting and/or modifying a fault setting value in a remote networking mode.
3. The distribution line fuse fault detection device of claim 2, wherein: the fuse state monitoring sensor is arranged on a fuse tube of the fuse, a closed magnetic flux loop is formed by laminating multiple silicon steel sheets, and the fuse state monitoring sensor can realize locking according to the change conditions of voltage and current; the data terminal is installed in the pole tower of the distribution line.
4. A distribution line fuse fault detection apparatus according to claim 3, wherein: the data terminal enters a dormant state when the data terminal does not need to process and forward the data, and processes and forwards the received data by interrupting and awakening after the data terminal receives the data; the fuse state monitoring sensor enters a dormant state after being electrified and is timed and interrupted and awakened through a timer.
5. The distribution line fuse fault detection device of claim 1, wherein: the fuse state monitoring sensor also comprises an emergency power supply, a temperature detection module for monitoring the temperature of the fuse or a distribution line, a time synchronization module, a local alarm indication module for realizing instant alarm after the fault of the fuse is monitored, and a first communication module for communicating with a data terminal; the data terminal also comprises a second communication module used for communicating with the fuse state monitoring sensor and the master station, a time synchronization module, a fuse tube state event storage module used for storing event records in time when the fuse is subjected to remote signaling deflection, and a remote parameter modification and program upgrading module.
6. The distribution line fuse fault detection device of claim 1, wherein: the fuse state monitoring sensor also comprises one or more of a fault reset time module for remote networking setting and/or modifying fault reset time, a delay time module for remote networking setting and/or modifying delay time of alarm detection, a current transformation ratio coefficient module for remote networking setting and/or modifying current transformation ratio coefficient, and a load current timing remote transmission period module for remote networking setting and/or modifying load current timing remote transmission period; the fault setting value module, the fault resetting time module, the delay time module, the current transformation ratio coefficient module and the load current timing remote transmission period module are all remote adjusting modules, and after receiving an instruction of a master station or an external remote controller, each remote adjusting module respectively sets and/or modifies the fault setting value, the fault resetting time, the delay time, the current transformation ratio coefficient and the load current timing remote transmission period.
7. The distribution line fuse fault detection device of claim 1, wherein: the current measurement module realizes real-time monitoring and timing uploading of load current, and acquisition and immediate uploading of fault current.
8. The distribution line fuse fault detection device of claim 1, wherein: and the fuse state monitoring sensor is communicated with the data terminal by adopting wireless radio frequency.
9. The distribution line fuse fault detection device of claim 1, wherein: the shell of the fuse state monitoring sensor is made of a polypeptide acid ester material, and epoxy resin is poured into the fuse state monitoring sensor; the surface of the data terminal is subjected to anti-corrosion treatment; and the data terminal is integrated with a solar panel.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600740A (en) * | 2020-04-02 | 2020-08-28 | 深圳市国电科技通信有限公司 | Remote operation and maintenance management system and method |
| CN112345927A (en) * | 2020-08-20 | 2021-02-09 | 北京国电通网络技术有限公司 | Monitoring system and intelligent fuse of fuse |
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| CN115331417A (en) * | 2022-07-11 | 2022-11-11 | 中联重科股份有限公司 | Method for monitoring frequency of remote controller, controller and pumping equipment |
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| CN115331417B (en) * | 2022-07-11 | 2023-11-17 | 中联重科股份有限公司 | Method for monitoring frequency of remote controller, controller and pumping equipment |
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