Fault rapid detector and detection method

A speed measuring instrument and fault technology, which is applied in the field of electric power equipment, can solve the problems of affecting normal power supply, slow maintenance speed, frequent connection, etc., and achieve the effect of stable and accurate connection mode, convenient operation and ensuring accuracy

Pending Publication Date: 2020-09-04
LANGFANG POWER SUPPLY COMPANY STATE GRID JIBEI ELECTRIC POWER COMPANY +1
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Problems solved by technology

[0002] The handcart is the main part of the withdrawable switchgear. During the maintenance of the handcart switch, it is not clear whether the fault comes from the cabinet itself or the handcart switch in the switchgear, so it must be eliminated item by item. At present, it is all through small clips. Use a multimeter to test t

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the technical solution of the application, the application will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the application. .

[0026] First, please refer to figure 1 , this embodiment provides a fault speed tester for handcart switch fault detection, the handcart switch includes an aviation plug 100 docked with the switch cabinet and a closing branch and an opening branch connected in parallel to the aviation plug 100, An energy storage branch and a test branch; a test switch 120 is provided on the test branch; a closing coil 130 is provided on the closing branch; an opening coil 140 is provided on the opening branch; an energy storage component is provided on the energy storage branch; The energy storage assembly includes an energy storage mo...

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Abstract

The invention provides a fault rapid detector and a detection method. The fault rapid detector comprises a power supply assembly, an operation indicating lamp and a detection branch. The power supplyassembly comprises a power supply switch for overload protection; the operation indicating lamp is electrically connected with the test branch; the detection branch is electrically connected with theswitching-on branch, the switching-off branch and the energy storage branch; the detection branch comprises a detection indicating lamp and a detection switch connected with the detection indicating lamp in parallel; the resistance value of the detection indicating lamp is not lower than 7/3 times of the resistance value of the detected branch circuit, wherein tested branch is a switching-on branch/switching-off branch/energy storage branch. According to the technical scheme provided by the embodiment of the invention, the on-off state of the detected branch can be directly observed through the indicating lamp, and the detected branch can be controlled to be under-voltage and cannot be started while the on-off state of the detected branch is detected by utilizing a series voltage divisionprinciple; then, the detection switches are closed in sequence, the corresponding detected branches can be controlled to be started in sequence, and when the power switch trips, it can be known that the detected branches are short-circuited.

Description

technical field [0001] The application relates to the technical field of electric power equipment, in particular to a rapid fault detector and a detection method. Background technique [0002] The handcart is the main part of the withdrawable switchgear. During the maintenance of the handcart switch, it is not clear whether the fault comes from the cabinet itself or the handcart switch in the switchgear, so it must be eliminated item by item. At present, it is all through small clips. Use a multimeter to test the connection with the aviation plug. The pins on the aviation plug are many and closely arranged. Frequent connections are required during detection, and the handcart switch is manually operated. The operation is complicated and error-prone, and the maintenance speed is slow. affect the normal power supply. Contents of the invention [0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a rapid fault tester and a ...

Claims

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Application Information

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IPC IPC(8): G01R31/327
CPCG01R31/3272
Inventor 张爱军王爱华李学良田磊计一鸣徐颖陈金生王维柴东海孙丽明
Owner LANGFANG POWER SUPPLY COMPANY STATE GRID JIBEI ELECTRIC POWER COMPANY
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