Because the current injected the PAW, the ratio 12000 V/500 for the current
transformer factor (kni) can set there.
However, the same zero sequence voltage measured both devices.: coil nominal voltage/500 power auxiliary winding (PAW)
Kni 24
In the example, the coil's nominal voltage kV, the transformer's nominal value 100 V
and the PAW's 500 V.: coil nominal voltage/100 V
Knu 120
– current measurement inputs
Current transformer HPCI module
The current through the power auxiliary winding measured directly the HPCI with a
200/1 current transformer.
Configuration voltage channel 2
Measurement
channel
Default allocation and settings
U2 Uns_Coil
Ex.
Setting for current input:
Setting Description
Ici Current injected PAW
- wired cabinet default current channel 1
Default allocation current channels
Measurement
channel
Default allocation and settings
I1 Ici
Ex. The absolute value
and especially the phase must the same both measurement inputs.
The conversion ratio knu for the value Uns_Coil then 120. This transformer factor integrated the HPCI's firmware.
– Phase U-Sync (parameter hidden)
The value determined during commissioning testing the polarity the current and
voltage channels.
Values increments 15° can entered.
The reason for this that the synchronization voltage Usync the REG-DP/ REG-DPA may
not have the same phase the synchronization voltage the current injection controller.Page 240 Commissioning the HPCI
We take care it.
Default value: 30°
. The current Ici already measured the sec-
ondary side the current injection controller
