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Installation of a reactor
70
PRECAUTIONS FOR USE OF THE INVERTER
3.3 Installation of a reactor
When the inverter is connected near a large-capacity power transformer (1000 kVA or more) or when a power factor
correction capacitor is to be switched over, an excessive peak current may flow in the power input circuit, damaging the
converter circuit. To prevent this, always install an optional AC reactor (FR-HAL).
MCCB MC
Inverter/
converter unit
R
S
TZ
Y
X
U
V
W
R/L1
S/L2
T/L3
M
5000
5300
4000
3000
2000
1000
110 165 247 330 420 550 kV
A
AC reactor
(FR-HAL)
Power
supply
Capacities requiring
installation of
AC reactor
Inverter capacity
Power supply system
capacity (kVA)