ABB Relion 670 Series Technical Reference Manual page 18

Table of contents
12
Setting parameters..........................................................................470
Technical data.................................................................................470
Directional underpower protection GUPPDUP (37)..............................470
Introduction......................................................................................471
Principle of operation.......................................................................472
Low pass filtering........................................................................474
Calibration of analog inputs........................................................474
Function block.................................................................................476
Input and output signals..................................................................476
Setting parameters..........................................................................477
Technical data.................................................................................478
Directional overpower protection GOPPDOP (32)................................478
Introduction......................................................................................478
Principle of operation.......................................................................479
Low pass filtering........................................................................482
Calibration of analog inputs........................................................482
Function block.................................................................................484
Input and output signals..................................................................484
Setting parameters..........................................................................485
Technical data.................................................................................486
Broken conductor check BRCPTOC (46).............................................486
Introduction......................................................................................486
Principle of operation.......................................................................487
Function block.................................................................................488
Input and output signals..................................................................488
Setting parameters..........................................................................489
Technical data.................................................................................489
Section 8 Voltage protection.............................................................491
Two step undervoltage protection UV2PTUV (27)................................491
Introduction......................................................................................491
Principle of operation.......................................................................491
Measurement principle...............................................................492
Time delay..................................................................................492
Blocking......................................................................................498
Design........................................................................................499
Function block.................................................................................501
Input and output signals..................................................................501
Setting parameters..........................................................................502
Technical data.................................................................................504
Technical reference manual