4.1 Impact the P-coil's design the results current injection
air-gap
d
higher
lower Imin
Imax
moveable
core
spindle
moveable
core
fixed core
primary
winding
PAW
MW
Figure 161: Basic design continuously adjustable P-coil
.Page 231
Commissioning the HPCI
Clamp Description Meaning
X5:1 Voltage supply power unit HPCI Module Phase (L1), 230 Hz
Fused internally with fuse (Q2)
X5:2 Auxiliary voltage supply HPCI Module (L2), 230 Hz
Fused internally with fuse (Q2)
X5:3 Auxiliary voltage supply HPCI Module neutral conductor (N)
X5:4 Auxiliary voltage supply HPCI Module protective earth conductor (PE)
Measurement points for the different algorithms:
Measu-
rement
point
Uns,Ici algo-
rithm
Comment
Usync Synchronization voltage
UNS (UNE) Zero sequence voltage P-
coil
U0D Zero sequence voltage on
open delta winding (on bus-
bar)
ICI Injection current
14
