ABB RELION REX640 Technical Manual page 51

REX640
Technical Manual
Non-directional overcurrent protection............................... 1714
Example for non-directional overcurrent protection............1715
Current transformer requirements for transformer differential
protection.................................................................................1716
Section 13 Protection relay's physical connections......................1721
Module diagrams.......................................................................... 1721
Communication modules.............................................................. 1729
Arc sensor interface......................................................................1730
Section 14 Technical data............................................................ 1733
Section 15 Protection relay and functionality tests.......................1741
Section 16 Applicable standards and regulations........................ 1745
Section 17 Glossary..................................................................... 1747
Table of contents
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