0 100
10
-2
10
-1
10
0
10
1
Coilposition Ipos %
Une %
ICE_max
v
Uearth-threshold
Umax-threshold
Umax-end
Figure 79: Overview Umax limit values
.2 Umax
Note:
The Umax function limits the zero sequence voltage very unbalanced grids (overhead
power lines; 110 overhead power grids with compensation) healthy state.1 under Uerd threshold.
The output function not reset until Une Une error threshold Une error hysteresis.00
0 Umax threshold
The below figure displays the limit value for Uerd_Threshold, Umax_Threshold, Umax_End,
Umin_Threshold and the self-extinguishing current limit.
11.2. The threshold Uo_erd was dis-
cussed Chapter 11.
0 Une error hysteresis
Factor for the limit value for the Une error threshold.2.4.
Note:
The description applies firmware 2.Page 110 Detailed description REG-DP/ REG-DPA parameters
We take care it.3.3.
0 Une error threshold
If the zero sequence voltage Une exceeds this limit value, the output function BOF
'40:Une_???' set
