JB/T 3837-2025 in English

This standard provides a systematic approach for the designation of transformer product models. It outlines the principles and rules for the composition of model numbers, ensuring consistency and clarity in the identification of transformer products. The standard covers the structure of model codes, the meaning of various symbols and letters used, and the application scope of the coding system. It also specifies the requirements for the representation of technical parameters and performance characteristics within the model designation. The standard aims to facilitate communication among manufacturers, users, and regulatory bodies by establishing a unified coding framework. It includes guidelines for the preparation and revision of model codes to align with evolving technological and market needs.