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8-8
Determination of Appropriate Power Supply Units
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.
without
mains
choke
(KD)
with
mains
choke
(KD)
:
S
:
connected load [kVA]
N1
P
:
DC bus continuous power [kW]
ZW
Fig. 8-23:
Connected load for power supply units of the HMV01.1E line
S
:
connected load [kVA]
N1
P
:
DC bus continuous power [kW]
ZW
Fig. 8-24:
Connected load for power supply units of the HMV01.1R line
I
:
mains current [I]
N1
S
:
connected load [kVA]
N1
U
:
mains voltage [U]
N1
Fig. 8-25:
Mains current
=
:
S
P
*
1
7 ,
(
for
HMV
N
1
ZW
=
S
P
*
1
5 ,
(
for
HMV
01
N
1
ZW
=
S
P
*
, 1
15
N
1
ZW
=
S
P
*
, 1
05
N
1
ZW
S
*
1000
=
N
1
I
N
1
3
*
U
N
1
DOK-INDRV*-HMV-*******-PR01-EN-P
Rexroth IndraDrive
−
01
.
E 1
W
0030
)
−
−
.
E 1
W
0075
,
W
0120
)
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