Transformer protection ret650

Relion® 650 series

Transformer protection RET650 Product Guide

Transformer protection RET650 Product version: 1.1

1MRK 504 127-BEN Issued: February 2011

Contents
1. 650 series overview..............................................3 2. Application...........................................................3 3. Available functions...............................................7 4.Differential protection.........................................17 5. Current protection..............................................18 6. Voltage protection..............................................19 7. Frequency protection.........................................20 8. Secondary system supervision..........................21 9.Control................................................................21 10. Logic..................................................................22 11. Monitoring.........................................................23 12. Metering............................................................26 13. Human Machine interface.................................26 14. Basic IED functions...........................................27 15. Stationcommunication.....................................28 16. Hardware description........................................29 17. Connection diagrams........................................30 18. Technical data...................................................37 19. Ordering............................................................73

Disclaimer The information in this document is subject to change without notice andshould not be construed as a commitment by ABB AB. ABB AB assumes no responsibility for any errors that may appear in this document. © Copyright 2011 ABB AB. All rights reserved. Trademarks ABB and Relion are registered trademarks of ABB Group. All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.

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ABBTransformer protection RET650 Product version: 1.1

1MRK 504 127-BEN Issued: February 2011 Revision: -

1. 650 series overview
The 650 series IEDs provide optimum 'off-theshelf', ready-to-use solutions. It is configured with complete protection functionality and default parameters to meet the needs of a wide range of applications for generation transmission and sub-transmission grids. The 650 seriesIEDs include: • Complete ready-made solutions optimized for a wide range of applications for generation, transmission and subtransmission grids. • Support for user-defined names in the local language for signal and function engineering. • Minimized parameter setting based on default values and ABB's new global base value concept. You only need to set those parameters specific to your ownapplication, such as the line data. • GOOSE messaging for horizontal communication. • Extended HMI functionality with 15 dynamic three-color-indication LEDs per page, on up to three pages, and configurable push-button shortcuts for different actions. • Programmable LED text-based labels. • Settable 1A/5A -rated current inputs.

A very fast differential protection function, with automatic CT ratio matchingand vector group compensation, makes this IED the ideal solution even for the most demanding applications. Since RET650 has very low requirements on the main CTs, no interposing CTs are required. The differential protection function is provided with 2nd harmonic and wave-block restraint features to avoid tripping for magnetizing inrush current, and 5th harmonic restraint to avoid tripping foroverexcitation. The differential function offers a high sensitivity for low-level internal faults. The unique and innovative sensitive differential protection feature of the RET650 provides the best possible coverage for winding internal turn-to-turn faults, based on well-known theory of symmetrical components . Low impedance restricted earth-fault protection function are available as complimentary...