IEC TR 61869-100:2017
Instrument transformers - Part 100: Guidance for application of current transformers in power system protection
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About This Item
IEC TR 61869-100:2017 provides technical guidance for applying current transformers in power system protection, helping engineers assess whether a device is suitable for protection-related duties and related verification activities. As a report within the IEC TR 61869 series, it supports technical review, documented evaluation, and procurement decisions where current transformer performance affects protection scheme behavior. For organizations working on electrical equipment selection, conformity assessment, or compliance workflows, IEC TR 61869-100:2017 offers a focused reference for understanding application considerations in protection systems.
IEC TR 61869-100:2017 standard overview
IEC TR 61869-100:2017 is aimed at guiding the application of current transformers in power system protection, with emphasis on practical use rather than broad product requirements. It is relevant to engineering documentation and technical validation where current transformer selection, connection, and operating conditions must support reliable protection performance. The document is commonly used to inform risk management, testing workflows, and technical assessment when teams need a clearer basis for evaluating protection-related current transformer applications.
Applications of IEC TR 61869-100:2017
This technical reference is typically used in power system projects that rely on current transformers for relaying, fault detection, and protection coordination. It may support design reviews, laboratory evaluation, acceptance testing, and procurement specification for substations, switchgear assemblies, and other electrical installations where protection accuracy and operational consistency matter. IEC TR 61869-100:2017 can also help utilities, manufacturers, and test laboratories align technical requirements during product evaluation and conformity assessment preparation.
Why IEC TR 61869-100:2017 matters
In protection applications, incorrect current transformer selection or interpretation can affect safety, selectivity, and overall system behavior. IEC TR 61869-100:2017 matters because it helps teams apply a structured technical approach to validation, reducing uncertainty during engineering review and compliance preparation. It is useful for maintaining consistency across documentation, testing, and procurement, especially where multiple stakeholders must agree on performance expectations. For organizations managing electrical assets, it supports more confident technical decisions and lower implementation risk.
- Guidance for applying current transformers in protection-oriented power system designs
- Useful for engineering review, test planning, and specification alignment
- Supports conformity assessment and procurement evaluation for electrical equipment
- Helps improve technical consistency across protection studies and validation work
- Publication Date: 2017-01-20
- Standard Status: Original
- Publisher: IEC
- Edition: 1
- New Version Available: IEC TR 61869-100:2017 (2023-10-18)
- This Version: IEC TR 61869-100:2017 (2017-01-20)
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