SIEMENS
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Siemens D 21.4 · 2017
Tools and configuration
Configuration notes
EMC notes for the application of the product standard EN 61800-3
13
■
Configuration
(continued)
Measures for complying with product standard EN 61800-3 first environment
Only PM240-2 Power Modules in blocksize format can be used in the first environment.
Interference immunity
The SINAMICS S120 drive system is suitable for operation in the
second environment.
Regarding interference immunity, SINAMICS S120 can be used
in the
first and second environments
.
Interference emission – complying with Category C2
first environment
For use in the first environment,
in addition
to the requirements
for use in the second environment, device-specific notes to
maintain the
harmonic current
limits must be
taken into con-
sideration
. Here, EMC product standard EN 61800-3 makes
reference to the standards pertaining to harmonic currents:
EN 61000-3-2 and EN 61000-3-12.
Device-specific notes for complying with harmonic current limit values according to EN 61000-3
•
Power Modules with a power
P
N
≤
1 kW
Complying with limit values according to EN
61000-3-2 cannot
be guaranteed in this case. The installation company or
company operating professionally used devices must obtain
authorization to connect the device to the low-voltage grid
from the responsible power utility company.
•
Power Modules with a power
P
N
> 1 kW and a rated input
current
I
rated, input
< 16 A
These devices are not subject to any limit values regarding the
harmonic currents, and can therefore be connected to the
public low-voltage grid without prior authorization.
•
Power Modules with a rated input current > 75 A
There are no applicable standards when installing these types
of devices. However, it is recommended that the utility
company (grid operator) be informed when connecting
such a device.
Device-specific measures to comply with harmonic current limit values:
Power Modules
in
blocksize
format with a rated input current
I
rated, input
> 16 A and
≤
75 A
Measures to comply with harmonic current limits
according to EN 61000-3-12
Rated power
Rated input current
I
rated, input
Supply voltage
Frame size
Line reactor
u
k
= 4 %
Minimum short-circuit
power
S
SC
at the
connection point of
the customers plant
or system
3 ... 7.5 kW
20.7 ... 37 A
200 ... 240 V 3 AC
FSC
Required
1)
S
SC
≥
120 ×
√
3 ×
U
line
×
I
rated, input
5.5 ... 15 kW
17.2 ... 39.9 A
380 ... 480 V 3 AC
FSB and FSC
Required
1)
11 ... 18.5 kW
40 ... 64 A
200 ... 240 V 3 AC
FSD
Not required
S
SC
≥
120 ×
√
3 ×
U
line
×
I
rated, input
18.5 ... 37 kW
36 ... 70 A
380 ... 480 V 3 AC
FSD
Not required
Example of calculating the minimum short-circuit power required
Determining the minimum short-circuit power
S
SC
for the Power Module in blocksize format FSD: 37 kW with
U
line
= 400 V and
I
rated, input
= 70 A
S
SC
≥
120 ×
√
3 ×
U
line
×
I
rated, input
The short-circuit power must be greater than 120 × 1.73 × 400 V × 70 A = 5812 kVA
As guide value, this typically corresponds to a low-voltage transformer with an apparent power of approximately 300 ... 400 kVA.
Note:
The installation company or company operating the device is responsible for ensuring that this device is only connected at a connection point with an
appropriate short-circuit power (fault level), if this is necessary after consulting the power utility (grid operator).
The installation company or company operating the device requires authorization from the power utility (grid operator) in the following situations:
• Three-phase connection to a line supply with lower short-circuit power
• Three-phase connection without a line reactor
• Connecting single-phase devices with a rated input current
I
rated, input
>16 A
1)
Available from "Siemens Product Partner for Drives Options"
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© Siemens AG 2017