ABB REG650 Technical Manual page 10

Table of contents
4
Out-of-step protection OOSPPAM..................................................129
Identification..............................................................................129
Functionality..............................................................................129
Function block...........................................................................130
Signals.......................................................................................130
Settings......................................................................................131
Operation principle....................................................................132
Lens characteristic...............................................................134
Detecting an out-of-step condition........................................136
Maximum slip frequency.......................................................137
Taking care of the circuit breaker safety..............................138
Design..................................................................................140
Technical data...........................................................................141
Load encroachment LEPDIS .........................................................141
Identification..............................................................................141
Functionality..............................................................................141
Function block...........................................................................142
Signals.......................................................................................142
Settings......................................................................................142
Operation principle....................................................................142
Load encroachment..............................................................143
Simplified logic diagrams......................................................144
Technical data...........................................................................144
Section 7 Current protection.........................................................145
Four step phase overcurrent protection OC4PTOC ......................145
Identification .............................................................................145
Functionality..............................................................................145
Function block...........................................................................145
Signals.......................................................................................146
Settings......................................................................................147
Monitored data...........................................................................148
Operation principle....................................................................149
Technical data...........................................................................152
Four step residual overcurrent protection EF4PTOC ....................152
Identification .............................................................................152
Functionality..............................................................................152
Function block...........................................................................153
Signals.......................................................................................153
Settings......................................................................................154
Monitored data...........................................................................157
Operation principle....................................................................157
Operating quantity within the function..................................157
Internal polarizing.................................................................158
Technical Manual