Section 1 Introduction1.1 This manual GUID-B02860D3-0AEC-4D56-85D1-FE85D66A1042 v2The Application manual contains application descriptions and setting guidelines for theREB500. The manual can be used to find out when and for what purpose a typical protectionfunction can be used. The manual can also be used when calculating settings.1.2 Intended audience GUID-6E3738BC-FDAB-4ACB-9DBC-442FA6048F2F v1This manual addresses the protection and control engineer responsible for planning, pre-engineering and engineering.The protection and control engineer must be experienced in electrical power engineering andhave knowledge of related technology, such as protection schemes and communicationprinciples.1.3 Product documentation GUID-91F0A03F-D1AF-4695-A239-1FC87E7459EE v2REB500 manuals Document numbersProduct guide 1MRK 505 402-BENApplication manual 1MRK 505 399-UENTechnical manual 1MRK 505 400-UENOperation manual 1MRK 500 132-UENEngineering manual 1MRK 511 452-UENCommissioning manual 1MRK 505 401-UENApplication manual for bay protection functions 1MRK 505 403-UENTechnical manual for bay protection functions 1MRK 505 406-UENCyber security deployment guideline 1MRK 511 453-UENCommunication protocol manual IEC61850 1MRK 511 450-UENCommunication protocol manual IEC60870-5-103 1MRK 511 451-UENGetting started guide 1MRK 505 404-UEN1.4 Symbols and conventions1.4.1 Symbols GUID-4F7DD10A-DEE5-4297-8697-B8AAB5E3262F v2The electrical warning icon indicates the presence of a hazard which couldresult in electrical shock.1MRK 505 399-UEN B Section 1IntroductionDistributed busbar protection REB500 7Application manual© Copyright 2019 ABB. All rights reserved