IEC 61869-4:2013

IEC 61869-4:2013 is the technical reference for instrument transformers covered under the title Instrument transformers - Part 4: Additional requirements for combined transformers. It is relevant when engineering teams, test laboratories, and procurement specialists need a compliance reference for combined transformer designs and their associated verification activities. Used alongside broader technical documentation, IEC 61869-4:2013 helps support documented evaluation, technical review, and conformity assessment for electrical equipment where measurement accuracy and operational consistency are important.

IEC 61869-4:2013 standard overview

This edition addresses additional requirements for combined transformers, indicating a focus on the specific technical expectations that apply when multiple transformer functions are integrated in one device. For compliance workflows, it can serve as a baseline for engineering validation, product evaluation, and laboratory evaluation against the relevant performance criteria. Organizations may use it to align design documentation, testing workflows, and internal quality assurance processes with the intended use of combined instrument transformers.

Applications of IEC 61869-4:2013

IEC 61869-4:2013 is typically relevant in electrical power systems, switchgear-related procurement, and instrumentation projects where combined transformers are specified for measurement or protection functions. It may be used during technical assessment of supplier documentation, factory or type testing review, and preparation of compliance packages for regulated projects. The document is also useful for teams managing engineering documentation across design, verification, and acceptance stages.

Why IEC 61869-4:2013 matters

For organizations working with combined transformers, this technical document helps reduce ambiguity in specification and testing expectations. It supports safety-focused decision-making, consistency in verification activities, and more reliable conformity assessment preparation. In procurement and quality workflows, a clear compliance reference can help compare offers, confirm technical alignment, and manage risk during implementation. IEC 61869-4:2013 is therefore useful wherever technical compliance and repeatable evaluation are part of the project process.

• Additional requirements focused on combined transformers within the instrument transformer family
• Useful for technical validation, supplier review, and test planning
• Supports compliance workflows and engineering documentation for electrical equipment
• Helps align product evaluation with performance and verification expectations