ABB REU615 Applications Manual page 8

Table of contents
2
Standard configuration B..................................................................43
Applications.................................................................................43
Functions.....................................................................................44
Default I/O connections..........................................................45
Default disturbance recorder settings.....................................47
Functional diagrams....................................................................47
Functional diagrams for protection.........................................48
Functional diagrams for disturbance recorder and
supervision functions..............................................................51
Functional diagrams for control and interlocking ...................53
Section 4 Requirements for measurement transformers................59
Current transformers........................................................................59
Current transformer requirements for non-directional
overcurrent protection..................................................................59
Current transformer accuracy class and accuracy limit
factor......................................................................................59
Non-directional overcurrent protection...................................60
Example for non-directional overcurrent protection................61
Section 5 IED physical connections...............................................63
Inputs................................................................................................63
Energizing inputs.........................................................................63
Phase currents.......................................................................63
Residual current.....................................................................63
Phase voltages.......................................................................63
Residual voltage.....................................................................64
RTD/mA inputs............................................................................64
Auxiliary supply voltage input......................................................65
Binary inputs................................................................................65
Outputs.............................................................................................66
Outputs for tripping and controlling..............................................66
Outputs for signalling...................................................................67
IRF...............................................................................................68
Section 6 Glossary.........................................................................69
REU615
Application Manual