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Fault research and judgment system and method for electricity protection and distribution network with electronic sand table

A technology of distribution network fault and electronic sand table, applied in fault location, fault detection according to conductor type, etc., can solve the problems of lack of fault research and judgment system and method for power supply system, low fault judgment and judgment efficiency, etc., so as to improve the efficiency of fault judgment and judgment. Effect

Active Publication Date: 2019-03-15
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO +2
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the current guaranteed power supply system lacks a system and method for fault research and judgment, and the problem of low efficiency of fault research and judgment

Method used

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  • Fault research and judgment system and method for electricity protection and distribution network with electronic sand table

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Embodiment 2

[0041] This embodiment is basically the same as Embodiment 1, the difference is that in the step B), several devices of the same type are used as test equipment, connected to the test power supply and connected to the test power consumption unit, at the input end of the power distribution equipment and The output end is connected to the power measuring device, and the failure inducement of the test equipment is artificially manufactured according to the equipment model, and is collected under the action of the failure inducement, and recorded at a set frequency: during the process of the test equipment from normal operation to the failure symptom at the moment before the failure, the input Corresponding relationship between power and output power at the same time, each device establishes an alternative symptom correspondence table of output power to input power, and selects an alternative symptom correspondence table with the highest repetition rate and the simultaneously record...

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Abstract

The invention relates to a fault research and judgment system and method for a electricity protection and distribution network with an electronic sand table, and solves the problems in the prior art,the system comprises a plurality of power measuring devices which are arranged at the input end and output end of each electricity distribution device in the electricity distribution network, a powerdetection device comprises a power detection unit and a power value transmission unit, wherein the plurality of power measuring devices are all allocated with identification IDs, and the power value transmission unit is connected with a wireless communication device through wireless communication; a sound acquisition device acquires working noise of the electricity protection equipment, the wireless communication device and the sound acquisition device are connected with a microprocessor through wired communication, and a display device and a memory are electrically connected with the microprocessor; and the system also comprises an electronic sand table which comprises a sand table display screen and a sand table data console, the output end of the sand table data console is connected with the sand table display screen, and the input end of the sand table data console is connected with the microprocessor.

Description

technical field [0001] The invention relates to the technical field of electric power system maintenance, in particular to a fault research and judgment system and a judgment method of a power-guarantee distribution network with an electronic sand table. Background technique [0002] In the task of ensuring power supply for important users, in addition to strengthening line inspection and equipment maintenance, timely discovering adverse factors in the working condition of equipment, and trying to reduce the occurrence of failures, it is also necessary to quickly determine the faulty equipment and fault type after the fault occurs, so as to target Disposal and maintenance of faulty equipment and fault types are arranged. However, the current guaranteed power supply system lacks a system and method for fault research and judgment. Fault judgment can only be determined by the experience of technicians or by sending personnel to the site for inspection. When the specific fault...

Claims

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Application Information

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IPC IPC(8): G01R31/08
CPCG01R31/086
Inventor 俞涯沈旻金宇航江伟金艳
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO
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