ABB RELION REB500 Applications Manual

Also see for Relion REB500: Product guide Technical manual Applications manual Communication protocol manual Technical manual

Contents

ABB RELION REB500 Applications Manual Manual pdf 72 page image

13000040-IEC18000477-1-en.vsdxIEC18000477 V1 EN-USFigure 42: Operating characteristic for the stabilized differential current measurement9.3.3 Check zone GUID-0DBE49D3-0F10-4E16-97AE-D8DF96E8F3BC v2If the check zone (CzBBP) in a REB500 protection system picks up, zone selective tripping ofthe busbar protection is permitted in the following cases:Trip BB 2Trip BB1a) Trip CzBBPb) Bay unit(s) in operationTrip BBP (BB1)&&1c) Signal release CzBBPTrip BBP (BB2)d) CzBBP activated in the HMI500e) Differential alarm CzBBP AND "bypass"ModeRelease signal fromCzBBP13000041-IEC18000318-1-en.vsdIEC18000318 V1 EN-USFigure 43: Tripping in check zone enabled• Trip by CzBBP enables tripping of the BBP zone.• One or more bay units out of operation (that is, switched off, loss of power, or deviceerror), results in absence of important measurements categories. A complete check zoneSection 9 1MRK 505 399-UEN BSpecial applications of BBP66 Distributed busbar protection REB500Application manual© Copyright 2019 ABB. All rights reserved