The absolute value
and especially the phase must the same both measurement inputs. This transformer factor integrated the HPCI's firmware.
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 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. The current Ici already measured the sec-
ondary side the current injection controller.Page 240 Commissioning the HPCI
We take care it.
Values increments 15° can entered.
Default value: 30°
.
However, the same zero sequence voltage measured both devices.
Because the current injected the PAW, the ratio 12000 V/500 for the current
transformer factor (kni) can set there.
Configuration voltage channel 2
Measurement
channel
Default allocation and settings
U2 Uns_Coil
Ex.
– Phase U-Sync (parameter hidden)
The value determined during commissioning testing the polarity the current and
voltage channels.: 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.
The conversion ratio knu for the value Uns_Coil then 120
