8-8 Determination of Appropriate Power Supply Units Rexroth IndraDrive
DOK-INDRV*-HMV-*******-PR01-EN-P
8.7 Connected Load of the Supply Unit
The connected load is calculated to be able to determine mains fuses,
line cross sections and, if needed, commutation chokes and transformers.
The connected load is dependent on the continuous power of the drives
and the functional principle of the power supply unit.
15,1*PS :(KD) choke mains with
)0120W,0075WE1.01HMVfor(5,1*PS
)0030WE1.01HMVfor(7,1*PS :(KD) choke mains without
ZW1N
ZW1N
ZW1N
=
−−=
−=
S
N1
: connected load [kVA]
P
ZW
: DC bus continuous power [kW]
Fig. 8-23: Connected load for power supply units of the HMV01.1E line
05,1*PS
ZW1N
=
S
N1
: connected load [kVA]
P
ZW
: DC bus continuous power [kW]
Fig. 8-24: Connected load for power supply units of the HMV01.1R line
1N
1N
1N
U*3
1000*S
I =
I
N1
: mains current [I]
S
N1
: connected load [kVA]
U
N1
: mains voltage [U]
Fig. 8-25: Mains current