ABB REG316 4 Series - Definite Time over and Undercurrent

REG 316*4 1MRB520049-Uen / Rev. F ABB Switzerland Ltd
3-59
3.5.3. Definite time over and undercurrent (Current-DT)
A. Application
General purpose current function (over and under) for
· phase fault protection
· back-up protection
or for monitoring a current minimum.
B. Features
· insensitive to DC component
· insensitive to harmonics
· single or three-phase measurement
· maximum respectively minimum value detection in the three-
phase mode
· detection of inrush currents.
C. Inputs and outputs
I. C.t./v.t. inputs:
· Current
II. Binary inputs:
· Blocking
III. Binary outputs:
· pick-up
· tripping
IV. Measurements:
· current amplitude.