The mobile transformer test vehicle combines the on-site calibration device of power transformers with specially designed and mechanized equipment and auxiliary special vehicles, achieving the mechanization, intensification, and intelligence of on-site calibration of power transformers. Concentrate all instruments and equipment for transformer calibration inside the vehicle, and use mechanical equipment such as hydraulic lifting platforms, roof electric windows, hydraulic loading and unloading machines, and hydraulic support legs to facilitate and flexibly complete on-site operations of power transformers; And use computers and centralized control software to centrally control the calibration equipment, achieving fully automatic operation of transformer calibration; It can meet the error detection and calibration of CT, CVT, PT, and GIS built-in transformers with corresponding voltage levels, and can be widely used in various power science research institutes and provincial technical supervision bureau metrology centers across the country.

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The mobile transformer test vehicle is a new type of test vehicle developed and produced by our company for the metrology and power departments. It is based on specially customized medium-sized passenger cars. The main functions of the mobile transformer test vehicle are to measure voltage transformer, current transformer errors (ratio difference, angle difference), impedance (Ω), admittance (mS), and four basic functions; All operations have dual hardware protection, polarity protection, and variable ratio error judgment functions; The device can automatically complete the error measurement of all specified measurement points according to the requirements of the transformer calibration standard through computer mouse and keyboard operation; In addition to automatic measurement, the platform also has manual measurement function; The transformer error management system (software) has powerful functions and can comprehensively manage the basic data and measurement results of transformers according to the requirements of regulations, print various records and certificates; Complete alarm and automatic overcurrent protection function.

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The mobile transformer test vehicle has been delivered to Hunan Provincial Institute of Metrology and Testing for use. It integrates functions such as test control, test result analysis and processing, test report generation and printing, data query and analysis, and information management of test data. It can print various records and certificates according to user needs, greatly improving the ability of the metrology department to meet customer on-site service requirements, enhancing its work efficiency, and providing great opportunities for transformer manufacturing enterprises. The implementation of the "three stricts and three practicalities" in the metrology department has been well received by enterprises, generating considerable economic benefits for the metrology department and bringing good social benefits! (Contributed by Zhou Yaohua from the Marketing Department)