38
Instruction Booklet
IB156002EN
Effective January 2022
Eaton HCU2/HCUn active harmonic
filter installation manual
EATON
www.eaton.com
Figure 44 . CT wiring for two primaries and one secondary
Active Filter
L2
L3
L1
X2
X1
CH1
IN
X2
X1
X2
X1
OUT
X2
X
1
CH2
IN
X2
X1
X2
X1
OUT
X2
X1
CH3
IN
X2
X1
X2
X1
OUT
Active Filter
L2
L3
L1
X2
X1
CH1
IN
X2
X
1
X2
X1
OUT
X2
X1
CH2
IN
X2
X1
X2
X1
OUT
X2
X1
CH3
IN
X2
X1
X2
X1
OUT
Active Filter
L2
L3
L1
X2
X
1
CH1
IN
X2
X1
X
2
X1
OUT
X2
X1
CH2
IN
X2
X1
X2
X1
OUT
X2
X1
CH3
IN
X2
X1
X2
X1
OUT
X
1
X1
X1
Source
L1
L2
L3
Load
MASTER
MASTER
Slave
Optional 3
rd
CT
Required if there are Line-to- Neutral connected Loads downstream of the CTs.
3-phase Protection
Device
Customer supplied.
3-phase Protection
Device
Customer supplied.
Factory Installed shorting jumpers
Shorting Terminal Block
Customer supplied.