ABB Relion 670 series - Page 601

Function Range or value Accuracy
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Impulse margin time 15 ms typically -
Undercurrent:
Critical impulse time 10 ms typically at 2 to 0 x I
set
-
Impulse margin time 15 ms typically -
Overvoltage:
Critical impulse time 10 ms typically at 0 to 2 x V
set
-
Impulse margin time 15 ms typically -
Undervoltage:
Critical impulse time 10 ms typically at 2 to 0 x V
set
-
Impulse margin time 15 ms typically -
1MRK505222-UUS C Section 10
Multipurpose protection
595
Technical reference manual