Rhymebus RM6F5 series, Operation Manual

Page: 151 / 195

Appendix B Selection of AC Reactor(ACL)
151
App.C
Appendix B Selection of AC Reactor(ACL)
CAUTION
Due to the AC reactor(ACL) or DC reactor(DCL) possibly produce the heat (about
100
℃
) in use, please Do NOT touch the reactor and caution the environment
conditions.
a. Suppress the harmonic current of power and improve the power faction is the main
function of the ACL and DCL. Connect the ACL at the power source input terminal
of the drive also can suppress the surge voltage to protect the drive.
b. When the power capacity is over 500kVA or more than ten times of the rated
capacity of the drive, adding the ACL (as below figure) is necessary. The input
terminal (R/L1,S/L2,T/L3) of the drive must connect ACL.
Drive capacity
(kVA)
ACL is necessary
7000
500
P
o
w
e
r
c
a
p
a
c
it
y
(
k
V
A
)
0 50
700
ACL is not necessary
c. When the heater (with the SCR), air compressor, high-frequency equipment, or
welding machine is installed at the same power source site, the harmonic current
will interfere the drive. Thus, add the ACL at the input terminal (R/L1,S/L2,T/L3) of
the drive is required.
d. When multiple drives of high horse power are used, due to harmonic wave exerted,
adding ACL at the input terminal (R/L1,S/L2,T/L3) of the drives is required to
prevent the drives from the possible interference and power quality deterioration.
e. When the cable length between the drive and motor is over 30 meters or multiple
motors are used in parallel, please add ACL at the output terminal of the drive.
f. Add the ACL at the input terminal(R/L1,S/L2,T/L3), the power factor is above 75%;
Add ACL and DCL, the power factor is above 90%.(the specifications of ACL and
DCL, please refer to page 149
~150)
g. When horse power of drive is 100HP(included) or above, ACL is the standard
equipment. When the drive is 175HP(included) or above, DCL is the standard
equipment.
h. The connecting cable between the drive and DCL must be the same specifications
with the cable of input terminal(R/L1,S/L2,T/L3).
i. For installation, in accordance with the motor capacity to select the suitable ACL to
use and the specifications list are as below: