19146-2

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19146-2 is an international standard regulation for the application and working principle of transformers. It has been developed and revised by the International Electrotechnical Commission (IEC) and updated to its third edition in 2019. This regulation defines the construction, performance and testing of transformers.

The 19146-2 Application Field and Working Principle covers a broad scope. It includes transformers in all voltage classes with frequencies ranging from 1Hz to 50kHz. It applies to transformers with electromechanical, static and combinations of both. It also covers transformers for electrical power networks or special applications. It is applicable to single-phase and poly-phase transformers.

The 19146-2 Working Principle specifies the construction of the transformer. It describes the components and provides conditions for their assembly, including the type and arrangement of the components and their insulation supports. It also states the design requirements, including the short-circuit withstand capability, overload capability, and directional characteristics of the transformer.

The 19146-2 Application Field covers the application testing of transformers. It describes how to determine the suitability of a transformer for a specific application, how the transformer is evaluated and its characteristics defined in order to guarantee its performance for the intended purpose. It also provides methods for testing and evaluating the performance of the transformers in different applications, including on-load testing, dielectric testing and dynamic testing.

The 19146-2 Working Principle includes the testing of the materials used in the construction of the transformer. It states the requirements and guidelines for the type, performance and construction of magnetic materials used in the manufacture of transformers and provides methods for testing and evaluating their quality. It also covers the quality requirements and performance criteria for electrical insulation materials used in transformer design and manufacture.

The 19146-2 application field and working principle also provide requirements and guidance for verifying the safety of the transformer against overload, fire, and short-circuit. It includes the requirements for tests performed on the transformer and its components to ensure compliance with safety regulations. It provides guidelines for evaluating the tests and suggests actions to be taken when certain failures or safety issues are identified.

The 19146-2 Application Field and Working Principle is an important standard regulation for the application and working principle of transformers and its components. It ensures that the transformer is safe to use and provides methods and guidelines for testing and evaluating the performance of the transformers.

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