General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/Z 20840.100-2023
Introduction
This document provides guidelines for the application of current transformers used in power system protection. It is part of a series on instrument transformers and specifically addresses the technical aspects and considerations necessary for their effective use in protective relaying schemes. The standard covers essential requirements, performance criteria, and operational recommendations to ensure reliable operation within electrical power systems.
*** Please note: This description may not be accurate, please refer to the official documentation.
GB/Z 20840.100-2023 history
2023GB/Z 20840.100-2023 Transformers Part 100: Application Guidelines for Current Transformers for Power System Protection