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.
(Warning: possible exceed the self-extinguishing current limit large
grids!)
A Detuning always has the same absolute value regardless Ires. 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.
Default setting: 5%
The value relates the P-coil's upper end value Imax A. The optional current injection feature calculates the resonance point. But the resonance point exceeded, the ac-
tive current and the voltage the grid's resonance point will determined the
considerably more accurate method.3 Search method
0 Search method
The 'Move coil' method always selected when working without current injection.
dIpos x(%) Imax
0 Exceed resonance peak:
The exact calculation the resonance curve can only determined exceeding the res-
onance point.
Parameters Description
YES Resonance peak must exceeded
NO Resonance peak must not exceeded
. the resonance point not exceeded, the method will only able to
estimate the value the resonance current.
0 Target detuning:
The detuning quantity set this menu.
Default setting: A
11.
– value zero stands for resonance tuning.1.
When current injection used, not necessary move the coil determine the tuning
point.3.Page 101
Detailed description REG-DP/ REG-DPA parameters
Parameters Description
% The percent value relates the resonance current Ires
