Withstand voltage test device and method of three-phase electric energy meter
A technology of three-phase electric energy meter and withstand voltage test, which is applied in the direction of measuring devices, testing dielectric strength, and measuring electrical variables, etc. It can solve the problems of random data management, hidden dangers of personal safety, and low efficiency, so as to avoid close contact , easy to manage and ensure safety
Inactive Publication Date: 2011-11-09
STATE GRID ZHEJIANG ELECTRIC POWER +1
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[0002] Ordinary three-phase watt-hour meter withstand voltage test device needs to be manually boosted in front of the operating table, close to the AC high voltage of up to 4000V, which brings huge hidden dangers to personal safety; after the withstand voltage test is completed, it is necessary to observe the status indication of each meter The light judges the test results and manually enters them into the computer, which is inefficient, error-prone, and data management is random
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[0024] like figure 1 As shown, the present invention includes a computer, a program-controlled withstand voltage instrument, a switch of withstand voltage mode and a test board for withstand voltage results, a leakage current detection board for each meter position, and a high-voltage relay board. The program-controlled withstand voltage instrument is connected with the leakage current detection board of each meter for high-voltage output and detection; the program-controlled withstand voltage instrument is connected with the computer for communication; the withstand voltage mode control and withstand voltage result detection board is connected with the computer for communication; The voltage mode control and withstand voltage result detection board is connected to the leakage current detection board of each meter for state detection; the leakage current detection board of each meter is connected to the high-voltage relay board for high-voltage output and control; the high-volt...
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The invention relates to a withstand voltage test device and a withstand voltage test method of a three-phase electric energy meter. The common withstand voltage test device of the three-phase electric energy meter has the defects that: the voltage is required to be boosted manually in front of a manipulation platform, and the high voltage brings great safety hazard to a user; efficiency is low and it is easy to make mistake; and the data management is random. The withstand voltage test device comprises a computer with a withstand voltage test control module, a program-controlled withstand voltage apparatus, a high-voltage relay plate and a leakage current detection unit; the program-controlled withstand voltage apparatus is connected with the leakage current detection unit; the computer communicates with the program-controlled withstand voltage apparatus; the computer communicates with the leakage current detection unit; the leakage current detection unit is connected with the high-voltage relay plate to output the high voltage to the tested electric energy meter under the control of the high-voltage relay plate. By the invention, an operator avoids close contact with the high voltage source, so the safety is guaranteed, functions of automatically detecting test results and automatically saving data are realized, data is accurate, management is easy, random change is avoided and detection efficiency is high.
Description
technical field [0001] The present invention relates to a withstand voltage testing device and testing method. Background technique [0002] Ordinary three-phase watt-hour meter withstand voltage test device needs to be manually boosted in front of the operating table, close to the AC high voltage of up to 4000V, which brings huge hidden dangers to personal safety; after the withstand voltage test is completed, it is necessary to observe the status indication of each meter The lamp judges the test results and manually enters them into the computer, which is inefficient, error-prone, and data management is arbitrary. [0003] Contents of the invention [0004] The technical problem to be solved and the technical task proposed by the present invention are to perfect and improve the existing technical solutions, and to provide a three-phase electric energy meter withstand voltage testing device and testing method, so as to achieve safe, efficient, accurate recording, for ea...
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IPC IPC(8): G01R35/04G01R31/12
Inventor 张燕黄金娟肖涛李熊许达君张红亚
Owner STATE GRID ZHEJIANG ELECTRIC POWER