Functional diagrams for control and interlocking....................36
Standard configuration B..................................................................39
Applications.................................................................................39
Functions.....................................................................................39
Default I/O connections..........................................................40
Default disturbance recorder settings.....................................42
Functional diagrams....................................................................42
Functional diagrams for protection.........................................42
Functional diagrams for disturbance recorder and
supervision functions..............................................................49
Functional diagrams for control and interlocking....................51
Standard configuration C..................................................................57
Applications.................................................................................57
Functions.....................................................................................57
Default I/O connections..........................................................58
Default disturbance recorder settings.....................................59
Functional diagrams....................................................................60
Functional diagrams for protection.........................................60
Functional diagrams for disturbance recorder and
supervision functions..............................................................65
Functional diagrams for control and interlocking....................67
Section 4 Requirements for measurement transformers................73
Current transformers........................................................................73
Current transformer requirements for non-directional
overcurrent protection..................................................................73
Current transformer accuracy class and accuracy limit
factor......................................................................................73
Non-directional overcurrent protection...................................74
Example for non-directional overcurrent protection................75
Section 5 IED physical connections...............................................77
Inputs................................................................................................77
Energizing inputs.........................................................................77
Phase currents.......................................................................77
Residual current.....................................................................77
Residual voltage.....................................................................77
Auxiliary supply voltage input......................................................77
Binary inputs................................................................................78
Outputs.............................................................................................79
Outputs for tripping and controlling..............................................79
Outputs for signalling...................................................................80
IRF...............................................................................................81
Protection communication options....................................................81
Table of contents
2RED615
Application Manual
