Voltage transformer calibration system
A technology of voltage transformers and transformers, applied to instruments, measuring electrical variables, measuring devices, etc., can solve problems such as low work efficiency and high labor intensity, achieve fast boosting speed, reduce labor intensity, and improve calibration efficiency Effect
Pending Publication Date: 2020-09-22
INNER MONGOLIA POWER GRP
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Problems solved by technology
[0004] Aiming at the problems of low working efficiency and high labor intensity of the transformer calibration device and method existing in the prior art, the purpose of the present invention is to provide a voltage transformer calibration system to ensure safe, accurate and efficient realization of voltage mutual inductance device calibration
Method used
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[0032] The present invention will be further described below in conjunction with specific embodiments. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0033] Such as figure 1 As shown, a voltage transformer calibration system is used for error calibration, impedance, and admittance measurement of voltage transformers, including a two-dimensional code generation device, a code scanning gun, a control cabinet, a self-boosting standard voltage transformer, Host computer, printer and the bus network connected to the host computer.
[0034] The two-dimensional code generating device is used to mark the tested voltage transformer, which generates a two-dimensional code according to the information of the tested voltage transformer, and handles the storage of equipment.
[0035] The code scanning gun scans the QR code to read the information of the volt...
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The invention provides a voltage transformer verification system. The voltage transformer verification system comprises a two-dimensional code generation device, a code scanning gun, a control cabinet, a self-boosting standard voltage transformer, an upper computer, a printer and an infrared grating. The two-dimensional code generation device is used for marking a tested voltage transformer, and the code scanning gun reads information of the tested voltage transformer. The upper computer sets test parameters according to the information of the tested voltage transformer, sends an instruction to the control cabinet, receives the information uploaded by the control cabinet and generates an original record and report; the control cabinet adjusts the voltage, provides a voltage load, providesmeasurement and calculates an error according to the instruction sent by the upper computer, and uploads a test result to the upper computer; the self-boosting standard voltage transformer is used forboosting and providing a standard voltage signal; and the printer is used for printing the original record and report. According to the invention, full-automatic error verification of the tested voltage transformer can be realized, the verification efficiency is high, and the labor intensity is low.
Description
technical field [0001] The invention relates to the technical field of transformer performance testing, in particular to a voltage transformer calibration system. Background technique [0002] The voltage transformer plays the role of high-voltage isolation and voltage transformation according to the ratio, and is used to provide voltage signals with an accurate proportional relationship with the primary circuit for electrical measurement, electric energy metering, and automation devices. At the same time, it is also used to provide signals and high-voltage isolation for instruments and relay protection, so the reliability, stability, and accuracy of voltage transformers play a vital role in the safe operation and marketing measurement of power systems. The national verification regulation JJG314-2010 "Voltage Transformer for Measuring" clearly stipulates that each metering transformer needs to pass the first inspection and periodic inspection before it can be used normally....
Claims
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Login to View More IPC IPC(8): G01R35/02
CPCG01R35/02G01R35/005G01R35/007
Inventor 董永乐刘宇鹏余佳殷超白露薇毛永梅高正平王智慧
Owner INNER MONGOLIA POWER GRP