Mitsubishi FR-A740-00023-EC, Instruction Manual

Page: 65 / 474

55
Installation of a reactor
3
PRE
CAU
TI
ONS
FOR USE
OF
T
H
E INV
E
R
T
ER
3.2 Installation of a reactor
When the inverter is connected near a large-capacity power transformer (1000kVA or more) or when a power 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 the optional AC reactor (FR-HAL)
REMARKS
The wiring length between the FR-HEL and inverter should be 5m maximum and minimized. Use the same wire size as that of the
power supply wire (R/L1, S/L2, T/L3). (Refer to page 18)
MCCB MC
Inverter
AC reactor
(FR-HAL)
Power
supply
R
S
T Z
Y
X
U
V
W
P1
DC reactor (FR-HEL) *
R/L1
S/L2
T/L3
P/+
IM
5000
5300
4000
3000
2000
1000
110165 247 330 420 550 kVA
Capacities requiring
installation of
AC reactor
Inverter capacity
Power supply system
capacity
(kVA)
* When connecting the FR-HEL to the 01160 or less, remove the jumper across terminals P/+ - P1. For the 01800 or more, a DC
reactor is supplied. Always install the reactor. (Refer to page 14.)