Technical data........................................................................... 541
Section 10 Frequency protection....................................................543
Underfrequency protection SAPTUF ............................................. 543
Identification.............................................................................. 543
Functionality.............................................................................. 543
Function block........................................................................... 543
Signals.......................................................................................544
Settings......................................................................................544
Monitored data...........................................................................545
Operation principle.................................................................... 545
Measurement principle......................................................... 545
Time delay............................................................................545
Voltage dependent time delay..............................................546
Blocking................................................................................547
Design.................................................................................. 547
Overfrequency protection SAPTOF ...............................................548
Identification.............................................................................. 548
Functionality.............................................................................. 549
Function block........................................................................... 549
Signals.......................................................................................549
Settings......................................................................................550
Monitored data...........................................................................550
Operation principle.................................................................... 550
Measurement principle......................................................... 550
Time delay............................................................................551
Blocking................................................................................551
Design.................................................................................. 551
Technical data........................................................................... 552
Rate-of-change frequency protection SAPFRC .............................553
Identification.............................................................................. 553
Functionality.............................................................................. 553
Function block........................................................................... 553
Signals.......................................................................................553
Settings......................................................................................554
Monitored data...........................................................................554
Operation principle.................................................................... 554
Measurement principle......................................................... 555
Time delay............................................................................555
Blocking................................................................................555
Design.................................................................................. 556
Technical data........................................................................... 557
Frequency time accumulation protection function FTAQFVR........ 557
Identification.............................................................................. 557
Table of contents
13
Technical manual
Содержание Relion REG670
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