ABB REC650 ANSI Technical Manual page 13

Technical manual
Signals.............................................................................................182
Settings............................................................................................183
Monitored data.................................................................................183
Operation principle.......................................................................... 183
Measurement principle............................................................... 184
Time delay.................................................................................. 184
Blocking...................................................................................... 184
Design........................................................................................ 184
Technical data................................................................................. 186
Loss of voltage check LOVPTUV (27).................................................. 186
Identification.................................................................................... 186
Functionality.................................................................................... 186
Function block................................................................................. 187
Signals.............................................................................................187
Settings............................................................................................187
Operation principle.......................................................................... 188
Technical data................................................................................. 190
Section 8 Frequency protection.........................................................191
Underfrequency protection SAPTUF (81).............................................191
Identification.................................................................................... 191
Functionality.................................................................................... 191
Function block................................................................................. 191
Signals.............................................................................................192
Settings............................................................................................192
Monitored data.................................................................................192
Operation principle.......................................................................... 192
Measurement principle............................................................... 193
Time delay.................................................................................. 194
Blocking...................................................................................... 194
Design........................................................................................ 194
Technical data................................................................................. 194
Overfrequency protection SAPTOF (81)...............................................195
Identification.................................................................................... 195
Functionality.................................................................................... 195
Function block................................................................................. 196
Signals.............................................................................................196
Settings............................................................................................196
Monitored data.................................................................................196
Operation principle.......................................................................... 197
Table of contents
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