2%
Parameter end position (at Umin)
In order calculate and estimate the resonance curve, least one measurement point
must bigger than the set Umin threshold. Only then are the measured data accepted for the
determination the resonance curve.
Default setting: min
Figure shows the combination and description the above-mentioned parameters.
This frequently caused the transformer P-coil being temporarily switched off during
grid switching. the P-coil not reconnected the grid after the switch, there will not be
enough zero sequence voltage for the regulation and the regulator will display message.
.
Parameter Message delay (at Umin)
The message delay parameter sets the delay for the Umin message.
Default setting: 0.
the zero sequence voltage Une Umin.Page 114 Detailed description REG-DP/ REG-DPA parameters
We take care it. search not start-
ed within this time, the message 'Une Umin' triggered. This waiting position can
be:
0 Standby position or
0 Tuning point
(resonance point including the compensation that was set the last calculation)
Default setting: Tuning point
A new search process starts if
0 the zero sequence voltage Une leaves the tolerance range or
0 the regulator set perform cyclical control the resonance point. valid estimate cannot made, the P-coil
is adjusted waiting position based the parameterization
