Introduction; General - ABB REC 523 Technical Reference Manual

1MRS750881-MUM
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3.1.
Remote Monitoring and Control Unit
Technical Reference Manual

Introduction

General

The REC 523 Remote Monitoring and Control Unit (REC 523) is part of the ABB
Distribution Automation system and extends the functionality and flexibility of the
concept further. This is possible due to the modern technology applied both in
hardware and software solutions.
Increased performance is achieved by utilizing the multiprocessor architecture.
Digital signal processing combined with a powerful central processing unit (CPU)
and distributed input/output (I/O) handling facilitates parallel operations and
improves response times and accuracy. Moreover, highly developed function blocks
that are used for protection in medium voltage (MV) substations are utilized in
REC 523 to indicate faults at secondary substations.
Fig. 3.1.-1 REC 523 Remote Monitoring and Control Unit
REC 523
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