ABB Relion REC615 - Current Based Inverse Definite Minimum Time Characteristics; IDMT Curves for Overcurrent Protection

Figure 377: Operating effect of the BLOCK input when the selected blocking mode is
"Freeze timer"
If the BLOCK input is activated when the operate timer is running, as described in
Figure 377 , the timer is frozen during the time BLOCK remains active. If the timer
input is not active longer than specified by the Reset delay time setting, the operate
timer is reset in the same way as described in Figure 375 , regardless of the BLOCK
input .
The selected blocking mode is "Freeze timer".
11.2 Current based inverse definite minimum time
characteristics
1MRS758755 C
General function block features
REC615 & RER615
Technical Manual
743