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Railway application

ABB’s railway application RER670 IED is used for the protection, control and monitoring of the transmission lines and/or transformers in a two-phase 16.7 Hz power system design for railway supply. It supports isolated, compensated and solidly earthed networks.

The line protection covers distance protection functions providing high flexibility with quadrilateral or mho starting characteristic.

The transformer protection covers transformer differential protection for two-phase to two-phase as well as two-phase to one-phase transformers. Besides the transformer differential protection a wide range of backup functions are also available.

A very fast transformer tank protection helps to avoid damages in case of short circuits to the transformer tank.

A wide range of control functions can also be included in RER670 to either complement the line or transformer protection IED with advanced control functions or to provide a control IED with optional backup protection.

RER670 provides IEC 60870-5-103 as well as IEC 61850 Edition 2 communication to a substation automation system or, in case of IEC 61850, also for horizontal communication between IEDs.

In addition, this product provides extensive functionality ready to meet your specific requirements.

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