Contents
1. Description.....................................................................3
2. Default configurations.....................................................3
3. Protections functions......................................................9
4. Application...................................................................10
5. Supported ABB solutions.............................................11
6. Control.........................................................................12
7. Measurement...............................................................13
8. Disturbance recorder....................................................13
9. Event log......................................................................13
10. Recorded data............................................................13
11. Trip-circuit supervision.................................................13
12. Self-supervision...........................................................13
13. Access control............................................................13
14. Inputs and outputs......................................................14
15. Station communication................................................14
16. Technical data.............................................................18
17. Local HMI....................................................................48
18. Mounting methods......................................................48
19. IED case and IED plug-in unit......................................49
20. Selection and ordering data.........................................50
21. Accessories and ordering data....................................52
22. Tools...........................................................................52
23. Connection diagrams..................................................54
24. References..................................................................56
25. Functions, codes and symbols....................................57
26. Document revision history...........................................61
Disclaimer
The information in this document is subject to change without notice and should not be construed as a commitment by ABB. ABB assumes no responsibility for any
errors that may appear in this document.
© Copyright 2013 ABB.
All rights reserved.
Trademarks
ABB and Relion are registered trademarks of the ABB Group. All other brand or product names mentioned in this document may be trademarks or registered
trademarks of their respective holders.
Transformer Protection and Control 1MRS757846 A
RET620
Product version: 2.0
2 ABB
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