Power transformers--Part 1: General

This normative document serves as a foundational specification for the design and general characteristics of power transformers. It outlines the fundamental principles and common requirements applicable to various types of electrical conversion equipment used in power transmission and distribution systems. The content establishes essential definitions, general specifications, and performance criteria that manufacturers and users must adhere to during the development and procurement phases. It covers aspects such as ratings, cooling methods, and general construction guidelines to ensure operational reliability and safety. By providing a unified technical framework, this publication facilitates consistency across the industry and supports the effective integration of transformer technology into national power networks. It addresses core attributes necessary for the safe and efficient operation of high-voltage and low-voltage electrical apparatus, setting the baseline for subsequent detailed standards that may focus on specific test procedures or application scenarios.