High-voltage switch tester
A high-voltage switch and tester technology, which is applied in circuit breaker testing, machine/structural component testing, instruments, etc., can solve the problems of not having, not being able to grasp switch faults in time, and inconveniently analyzing switch performance, etc.
Inactive Publication Date: 2012-07-04
YANGZHOU HUADIAN ELECTRICAL CO LTD
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Problems solved by technology
[0007] The existing high-voltage switch tester does not have the above-mentioned detection items, it is not convenient to comprehensively and intuitively analyze and judge the performance of the switch, and it cannot timely grasp some possible faults of the switch, such as the action time included in the inherent time
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[0014] As shown in the figure, the present invention includes a power supply, a processor, a data acquisition circuit, a display circuit and a printing circuit; On the testing equipment, the acquisition device for judging the action time value of the fracture data switch through the level change and the resistive displacement sensor set on the high-voltage switch contact running route to collect the contact stroke, the action time value acquisition device, and the resistive displacement sensor Connect the single-chip microcomputer through the analog-to-digital converter; the collection of the action time value is to connect the ports A, B, and C through the test line, and determine the start and end of the action time through the change of the level of each port; the stroke collection, through the setting The resistive travel sensor at the contact position collects travel distance data. The single-chip microcomputer is provided with a storage area for generating program includ...
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The invention relates to a high-voltage switch tester, in particular to a tester of a high-voltage electric switch. The tester comprises a power supply, a processor, a data acquisition circuit, a display circuit and a printing circuit, wherein the power supply which is a rectifier circuit connected with an external power supply is connected with a singlechip, the display circuit and the printing circuit; the data acquisition circuit comprises an acquisition device and a resistance-type displacement sensor which are connected with equipment to be tested, the acquisition device judges an actiontime value of a break data switch by the change of a level value, and the resistance-type displacement sensor is arranged on a high-voltage switch contact point traveling line; the action time value acquisition device and the resistance-type displacement sensor are respectively connected with the singlechip by A / D converters, and the singlechip is provided with a program storage area containing index values of action time, passing travel, time travel speed dynamic curves and a time speed travel dynamic curve. The invention can comprehensively intuitively obtain the visual indexes on the performance of a high-voltage switch.
Description
technical field [0001] The invention relates to a test instrument for a high-voltage electric switch, in particular to a test instrument for detecting the performance of an industrial mechanical high-voltage electric switch. Background technique [0002] At present, the mechanical high-voltage switch widely used in the electric power field, when operating, the mechanical properties of its dynamic and static contacts have an impact on the equipment after the switch. Therefore, it is necessary to have a testing instrument that can detect the mechanical properties of the mechanical high-voltage switch. Fully obtain the performance of the switch, so as to prevent the damage of the equipment after the switch due to the performance degradation of the switch itself. [0003] The original high-voltage switch tester has an inherent time detection item, which detects the time value between the switch contact receiving the disconnection instruction and the moving contact reaching the d...
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IPC IPC(8): G01R31/327G01M99/00
Inventor 毕青春吕连春
Owner YANGZHOU HUADIAN ELECTRICAL CO LTD