dIpos x(%) Imax
0 Exceed resonance peak:
The exact calculation the resonance curve can only determined exceeding the res-
onance point.
(Warning: possible exceed the self-extinguishing current limit large
grids!)
A Detuning always has the same absolute value regardless Ires.
– value zero stands for resonance tuning. The optional current injection feature calculates the resonance point.
0 Minimum adjustment dIpos:
In order estimate the resonance curve, the P-coil must undergo minimum adjustment
in order obtain sufficient reference points for the calculation.Page 101
Detailed description REG-DP/ REG-DPA parameters
Parameters Description
% The percent value relates the resonance current Ires.3.1.
0 Target detuning:
The detuning quantity set this menu.
Parameters Description
YES Resonance peak must exceeded
NO Resonance peak must not exceeded
.
Default setting: A
11.
Default setting: 5%
The value relates the P-coil's upper end value Imax A.3 Search method
0 Search method
The 'Move coil' method always selected when working without current injection.
When current injection used, not necessary move the coil determine the tuning
point. necessary,
the regulator then positions the coil the determined tuning point.
– Positive values stand for overcompensation (the P-coil supplies more current when
an earth fault occurs than the grid’s capacitances overcompensation)
– Negative values stand for undercompensation. the resonance point not exceeded, the method will only able to
estimate the value the resonance current. But the resonance point exceeded, the ac-
tive current and the voltage the grid's resonance point will determined the
considerably more accurate method
