Lcl Filters - gefran AFE200 4 Series Instruction Manual

5.6 LCL Filters

LCL filter must be connected between AFE and the AC line supply.
It reduces the harmonics related to the switching frequency of the IGBT power
bridge (high order harmonics).
Decreasing the harmonic current distortion, It improves the line power quality and
its voltage distortion.
The specified LCL filters refer to the default value of the AFE200 switching fre-
quency. This frequency must not be changed.
(1) LCL filter for sizes (AC input 400...480Vac and 690Vac):
• From size AFE200-3220 to 71600 configuration HD (160kW ovld 150%)
• From size AFE200-3220 to 61320 configuration LD (160kW ovld 110%)
is composed by one choke connected on the AFE line input (LR3-AFE) and one
LC device (LC-AFE) composed by a capacitors bank and a line choke in a single
package
(2) LCL filter for sizes (AC input 400...480Vac and 690Vac):
• From size AFE200-72000 to 73550 configuration HD (355kW ovld 150%)
• From size AFE200-71600 to 73550 configuration LD (400kW ovld 110%)
• All Parallel configuration
is composed by one choke connected on the AFE line input (LR3-AFE), and
one LC device (LC-AFE) composed by a capacitors package (C-AFE) and a line
choke (L-AFE)
Note !
See chapter
For LCL filter sizes, see sections "5.6.1 LR3-AFE (Choke) Dimensions, Cable Cross Section and data"
on page 54, "5.6.2 LC-AFE (Choke + capacitors) Dimensions, Cable Cross Section and data" on page 56 ,
"5.6.4 C-AFE (Capacitor) Dimensions and Cable Cross Section" on page 58 and "5.6.4 C-AFE (Capacitor)
Dimensions and Cable Cross Section" on page 58.
LCL Filters Type
LCL-Kit-AFE-4-22-HD
LCL-Kit-AFE-4-45-HD
(1) LCL FILTER KIT
X1 X1 X1
LC-AFE
L1 L2 L3
L -AFE
C -AFE
X2 X2 X2 X2 X2
L1 L2 L3 L1-1 L2-1
X1 X1 X1
LR3-AFE
U V W
X2 X2 X2
U V W
"5.1.1 Cable Cross Section" on page 25
Table 5.6.1: LCL Filters / AFE200-4 matching (Heavy Duty)
Code
1
S7LC09
1
S7LC01
AFE200 • Instruction Manual
(2) LCL FILTER KIT
X1 X1 X1
L1 L2 L3
(*)
X2 X2 X2
X2
L1 L2 L3
L3-1
X1 X1 X1
U V W
(*)
X2 X2 X2
U V W
for cable sizes.
AFE200-4 (kW) - Heavy Duty
L-AFE
(*)
X2 X2 X2
X2 X2 X2
L1-2 L2-2 L3-2
L1-2 L2-2 L3-2
LR3-AFE
(*)
(*) Thermal probe not available on sizes:
LC-AFE-4-22HD-LD
LC-AFE-4-45HD
C-AFE
X2
X2 X2
L1-1 L2-1 L3-1
To AFE200
Sync Card
51