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What is Low Impedance REF Protection for Transformers about?

The document discusses low impedance restricted earth fault (REF) protection for transformers, emphasizing its advantages over traditional high impedance solutions. It highlights the need for sensitivity in earth-fault detection and outlines the principles of REF protection, including its fast response time and minimal engineering requirements. Additionally, it addresses limitations such as its ineffectiveness with three-CT arrangements and compensated earthing systems.

Author

Thanh Nguyên Thái

Language

EN