ABB REG316 4 Series - Page 276

ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. F
3-238
Giving due account to the available power, typical resistance
values for most applications are R
Es
= 1000 W and R
Ps
= 150 W.
Both R
Ps
and R
Es
must be able to conduct the maximum star-
point current for 10 s. The resistor R
Ps
must also be continuously
rated for the injection voltage (injected power < 100 VA).
The maximum generator star-point current is determined by the
resistors R
Es
and R
Ps
. Using the above resistors, this current
would be, for example, 5.3 A for U
Gen
= 10.5 kV or 13.5 A for
U
Gen
= 27 kV.