20
AFQm
Instruction Manual
The
AFQm
devices have built-in fuse overcurrent protection.
Install external protection according to the type of installation, the facility’s maxi-
mum short-circuit current, the maximum fuse current, and the regulations in force
at the place of installation.
If local regulations require the use of earth leakage protection devices, only DC
sensitive RCD (RCD type B) should be used with
AFQm
. Active filters work in
-
ternally with DC currents, and, in case of failure, the DC currents may produce
malfunction on type A RCD devices.
Ensure that the installation of the device in your electric distribution system (TN,
VT, IT) complies with current standards.
Check that there is a neutral in the place where three-phase active filter connections are made
with neutral,
AFQm-4WF-xxxx
.
The active filter must be of the correct size for the harmonic currents it has to filter and to com
-
ply with the installation's electrical features.
Check section
“4.3.- RATED CURRENT DIMENSIONS”
to define the correct dimen
-
sions of the device.
Failing to observe the recommendations described in this section might cause the
active filter to work incorrectly and prevent proper compensation of the installa
-
tion's current harmonics.
Do not install various filters in series one after another in the same installation,
configured to correct the same disturbances. This can produce an overcompen
-
sation of the disturbances, which could cause instability in the mains (
Figure 7
)
Figure 7:
Do not install various active filters in series.
Summary of Contents for AFQm Series
Page 1: ...INSTRUCTION MANUAL Active Parallel Multi Function Filter AFQm M217B01 03 19B...
Page 2: ...2 AFQm Instruction Manual...
Page 103: ...103 Instruction Manual AFQm 608 812 1755 665 465 1890 Figure 98 Dimensions Cabinet type AFQm...
Page 105: ...105 Instruction Manual AFQm 14 CE CERTIFICATE...
Page 106: ...106 AFQm Instruction Manual...
Page 107: ...107 Instruction Manual AFQm...