CN110895298A - 10KV and 35KV overhead line transient fault monitoring and indicating system - Google Patents
10KV and 35KV overhead line transient fault monitoring and indicating system Download PDFInfo
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- CN110895298A CN110895298A CN201911299133.2A CN201911299133A CN110895298A CN 110895298 A CN110895298 A CN 110895298A CN 201911299133 A CN201911299133 A CN 201911299133A CN 110895298 A CN110895298 A CN 110895298A
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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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
Abstract
The invention discloses a transient fault monitoring and indicating system for 10KV and 35KV overhead lines, which comprises a processing system, wherein an information collecting system is arranged at a signal output port of a detection module, the processing system is arranged at a signal output port of the information collecting system, a fault brake and a display system are arranged at a signal output port of the processing system, the processing system is arranged at a signal output end of a control module, the control module comprises a control panel and a signal converter, and the detection module comprises wavelet analysis and binary propulsion. The transient fault monitoring and indicating system for the 10KV and 35KV overhead lines can be used for accurately positioning the arrival time of fault current, the determination speed is higher, and the workload is smaller.
Description
Technical Field
The invention relates to the field of power transmission, in particular to a transient fault monitoring and indicating system for 10KV and 35KV overhead lines.
Background
The distribution network low-current grounding is always a main problem which puzzles power supply work, and particularly, the difficulty of grounding positioning is increased due to the fact that a power supply network in the distribution network is complex and changeable at the tail end of the distribution network, so that the accuracy of single-phase grounding fault detection of the existing low-current grounding system is low (20% -30%); many traditional power supply departments still adopt a pull method to determine fault outgoing lines, and a fault point is searched by a manual inspection method, so that the power supply of a large-area user is interrupted, and a large amount of manpower and material resources of the power supply department are consumed. Although a small impedance short circuit cannot be formed when a single-phase earth fault occurs, continuous power supply to a load is not influenced, and immediate tripping is not needed, the non-fault phase voltage is increased, the fault is easily expanded to be a two-point or multi-point earth short circuit after long-time operation, the arc grounding can cause the over-voltage of the whole system, further the equipment is damaged, the safe operation of the system is damaged, and the transient fault monitoring and indicating system for the 10KV and 35KV overhead lines is provided.
Disclosure of Invention
The invention mainly aims to provide a transient fault monitoring and indicating system for 10KV and 35KV overhead lines, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a transient fault monitoring and indicating system for 10KV and 35KV overhead lines comprises a processing system, wherein a signal output port of a detection module is provided with an information collection system, a signal output port of the information collection system is provided with the processing system, a signal output port of the processing system is provided with a fault switching-out and display system, and a signal output port of a control module is provided with the processing system;
the control module comprises a control panel and a signal converter, and the detection module comprises wavelet analysis and binary propulsion.
Preferably, an information collecting system is arranged at a signal output end of the wavelet analysis, and an information collecting system is arranged at a signal output end of the binary propulsion.
Preferably, the signal output end of the wavelet analysis is in signal connection with the signal input end of the information collection system, and the signal output end of the binary propulsion is in signal connection with the signal input end of the information collection system.
Preferably, the signal output end of the information collection system is in signal connection with the signal input end of the processing system, and the signal output end of the processing system is in signal connection with the signal input end of the display system.
Preferably, a signal converter is arranged at the signal output end of the control panel, and a processing system is arranged at the signal output end of the signal converter.
Preferably, the signal output end of the control panel is in signal connection with the signal input end of the signal converter, and the signal output end of the signal converter is in signal connection with the signal input end of the processing system.
Preferably, the signal output port of the processing system is in signal connection with the signal input port of the fault switching-off device.
Compared with the prior art, the invention has the following beneficial effects: when a line fails, the device carries out troubleshooting on the fault of the circuit by adopting two methods of wavelet analysis and binary propulsion, researches the corresponding relation between a fault point and an effective detection area to realize effective identification of fault current and catadioptric thereof, directly inputs the checked information into an information collection system, the information collection system transmits the collected information to a processing system for accurate analysis and processing, the information processed by a processor is displayed by a display system, a worker reads the line information displayed by the display system and inputs control information by operating a control panel, the control information input by the control panel is subjected to information conversion by a signal converter, the processing system sends an instruction to carry out fault brake-pulling on the fault line after receiving the control information converted by the signal converter, and finally improves the reliability of the whole line, the method has the advantages that accurate determination of the fault current arrival time is achieved by using wavelet analysis and a binary-driven Singular Value Decomposition (SVD) theory, the determination speed is high, the workload is low, the method is practical, and the using effect is better than that of a traditional mode.
Drawings
Fig. 1 is a system diagram of a 10KV and 35KV overhead line transient fault monitoring and indicating system of the invention.
FIG. 1, processing system; 2. a control module; 21. a control panel; 22. a signal converter; 3. an information collection system; 4. a detection module; 41. wavelet analysis; 42. carrying out halving propulsion; 5. switching off in a fault manner; 6. a display system.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1, a transient fault monitoring and indicating system for 10KV and 35KV overhead lines comprises a processing system 1, wherein a signal output port of a detection module 4 is provided with an information collection system 3, a signal output port of the information collection system 3 is provided with the processing system 1, a signal output port of the processing system 1 is provided with a fault switch 5 and a display system 6, and a signal output port of a control module 2 is provided with the processing system 1;
the control module 2 comprises a control panel 21, a signal converter 22, and the detection module 4 comprises a wavelet analysis 41 and a binary boost 42.
The signal output end of the wavelet analysis 41 is provided with an information collection system 3, and the signal output end of the binary propulsion 42 is provided with the information collection system 3.
The signal output of the wavelet analysis 41 is in signal connection with the signal input of the information collection system 3, and the signal output of the binary boost 42 is in signal connection with the signal input of the information collection system 3.
The signal output end of the information collection system 3 is in signal connection with the signal input end of the processing system 1, and the signal output end of the processing system 1 is in signal connection with the signal input end of the display system 6.
The signal output end of the control panel 21 is provided with a signal converter 22, and the signal output end of the signal converter 22 is provided with the processing system 1.
The signal output end of the control panel 21 is in signal connection with the signal input end of the signal converter 22, and the signal output end of the signal converter 22 is in signal connection with the signal input end of the processing system 1.
The signal output port of the processing system 1 is in signal connection with the signal input port of the fault pull-out switch 5.
It should be noted that, the invention is a 10KV and 35KV overhead line transient fault monitoring and indicating system, when a line has a fault, the device adopts two methods of wavelet analysis 41 and binary push 42 to troubleshoot the fault of the circuit, and studies the corresponding relationship between the fault point and the effective detection area to realize the effective identification of fault current and its catadioptric, the troubleshoot information is directly inputted into the information collection system 3, the information collection system 3 transmits the collected information to the processing system 1 for accurate analysis and processing, the information processed by the processor is displayed by the display system 6, the operator reads the line information displayed by the display system 6 and inputs control information by operating the control panel 21, the control information inputted by the control panel 21 is converted by the signal converter 22, the processing system 1 receives the control information converted by the signal converter 22 and then sends an instruction to carry out fault switching-off 5 on a fault line, finally the reliability of the whole line is improved, accurate determination of the fault current arrival time is realized by using wavelet analysis 41 and binary boosting 42 Singular Value Decomposition (SVD) theory, the method is higher in determination speed and smaller in workload, installation of screws is completed, and the method is more practical than the traditional transient fault monitoring and indicating systems of 10KV and 35KV overhead lines in the use prospect.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A10 KV and 35KV overhead line transient fault monitoring and indicating system comprises a processing system (1), and is characterized in that: an information collection system (3) is arranged at a signal output port of the detection module (4), a processing system (1) is arranged at a signal output port of the information collection system (3), a fault switch (5) and a display system (6) are arranged at a signal output port of the processing system (1), and a processing system (1) is arranged at a signal output port of the control module (2);
the control module (2) comprises a control panel (21) and a signal converter (22), and the detection module (4) comprises a wavelet analysis (41) and a binary boost (42).
2. The 10KV and 35KV overhead line transient fault monitoring and indicating system according to claim 1, wherein: and the signal output end of the wavelet analysis (41) is provided with an information collection system (3), and the signal output end of the binary propulsion (42) is provided with the information collection system (3).
3. The 10KV and 35KV overhead line transient fault monitoring and indicating system according to claim 1, wherein: the signal output end of the wavelet analysis (41) is in signal connection with the signal input end of the information collection system (3), and the signal output end of the binary propulsion (42) is in signal connection with the signal input end of the information collection system (3).
4. The 10KV and 35KV overhead line transient fault monitoring and indicating system according to claim 1, wherein: the signal output end of the information collection system (3) is in signal connection with the signal input end of the processing system (1), and the signal output end of the processing system (1) is in signal connection with the signal input end of the display system (6).
5. The 10KV and 35KV overhead line transient fault monitoring and indicating system according to claim 1, wherein: the signal output end of the control panel (21) is provided with a signal converter (22), and the signal output end of the signal converter (22) is provided with a processing system (1).
6. The 10KV and 35KV overhead line transient fault monitoring and indicating system according to claim 1, wherein: the signal output end of the control panel (21) is in signal connection with the signal input end of the signal converter (22), and the signal output end of the signal converter (22) is in signal connection with the signal input end of the processing system (1).
7. The 10KV and 35KV overhead line transient fault monitoring and indicating system according to claim 1, wherein: and a signal output port of the processing system (1) is in signal connection with a signal input port of the fault switching-out device (5).
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| CN201911299133.2A CN110895298A (en) | 2019-12-17 | 2019-12-17 | 10KV and 35KV overhead line transient fault monitoring and indicating system |
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