Automatic Transfer Systems for Secondary Selective Substations [Complete Revision]

Published by	Publication Date	Number of Pages
PIP	05/01/2018	18

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Category: PIP

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PIP ELSSG04 – Automatic Transfer Systems for Secondary Selective Substations [Complete Revision]

This Practice describes minimum requirements for design, performance, inspection, testing, and documentation, for delayed transfer automatic transfer systems (ATS) for two-source secondary selective substations. ATS provides automatic restoration of bus voltage upon loss of one of the sources. This Practice also covers remote monitoring and control requirements. This Practice does not cover fast bus transfer or delayed in-phase transfer systems.