1 Scope
This part of IEC 61869is applicable to inductive protective current transformers meeting the requirements
of the IEC 61869‑2 standard.
It may help relay manufacturers, CT manufacturers and project engineers to understand
how a CT responds to simplified or standardized short circuit signals. Therefore,
it supplies advanced information to comprehend the definition of inductive current
transformers as well as their requirements.
The document aims to provide information for the casual user as well as for the specialist.
Where necessary, the level of abstraction is mentioned in the document. It also discusses the question about the responsibilities
in the design process for current transformers.