Standards relevant to transformers – Part IX – Accessories

This part of the column covers a list of standards on the range of accessories used with power transformers and reactors.

byP. Ramachandran, A. S. Jhala



This part of the column covers a list of standards on the range of accessories used with power transformers and reactors. These standards apply to a wide range of accessories and fittings mounted on power transformers and reactors. They outline the service conditions and mechanical requirements common to all the accessories, as well as operational requirements specific to each device.

Every transformer and reactor is equipped with a variety of accessories meeting the interface to the grid, cooling, voltage regulation, monitoring and protection of equipment. Proper functioning of these accessories is essential to ensure the reliability of equipment during service. A wide number of national and international standards cover the application, specifications and performance requirements of these accessories. The present paper summarises available standards and technical brochures related to the above aspects of transformer accessories for immediate reference.

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