ABB REB650 Technical Manual page 10

Table of contents
4
Signals.............................................................................................108
Settings............................................................................................109
Monitored data.................................................................................109
Operation principle..........................................................................110
Technical data.................................................................................111
Pole discrepancy protection CCRPLD (52PD).....................................112
Identification ...................................................................................112
Functionality....................................................................................112
Function block.................................................................................113
Signals.............................................................................................113
Settings............................................................................................113
Monitored data.................................................................................114
Operation principle..........................................................................114
Pole discrepancy signaling from circuit breaker.........................116
Unsymmetrical current detection................................................117
Technical data.................................................................................117
Negative sequence based overcurrent function DNSPTOC (46).........117
Identification....................................................................................117
Functionality....................................................................................118
Function block.................................................................................118
Signals.............................................................................................118
Settings............................................................................................119
Monitored data.................................................................................120
Operation principle..........................................................................121
Technical data.................................................................................121
Section 8 Voltage protection.............................................................123
Two step undervoltage protection UV2PTUV (27)................................123
Identification....................................................................................123
Functionality....................................................................................123
Function block.................................................................................123
Signals.............................................................................................124
Settings............................................................................................124
Monitored data.................................................................................125
Operation principle..........................................................................125
Measurement principle...............................................................126
Time delay..................................................................................126
Blocking......................................................................................127
Design........................................................................................127
Technical data.................................................................................129
Technical Manual