Technical data
6.8 Electromagnetic compatibility of variable-speed drives
Power Module PM240P-2
Hardware Installation Manual, 06/2020, A5E37800827C AD
75
●
Converters with an LO base load input current > 16
A and ≤
75 A
The drive system is in compliance with IEC/EN 61000-3-12 under the following
precondition:
–
Power Module FSD, input voltage 380 … 480 V 3 AC: A line reactor is not required
–
The short-circuit power S
SC
at the connection point of the customer's system to the
public grid is greater or is equal to the value according to the following formula:
SSC ≥ 120 ∙ √3∙ Uin ∙ LO base load input current
Example: FSD converter, 400 V, input current, 70 A:
S
SC
≥
120
∙
√3
∙
400 V
∙
70 A
This corresponds to a low-voltage transformer with an apparent power rating of
approximately 300 kVA … 400 kVA
The installation company or company operating the equipment is responsible for
ensuring that this equipment is only connected at a connection point with an
appropriate short-circuit power (fault level).
If these preconditions do not apply, then the installation company or company operating
the device must obtain authorization from the grid operator to connect the device
regarding the harmonic currents.
●
Converters with an LO base load current > 75A
There are no standard-related requirements for installing devices such as these.
However, it is recommended to inform the grid operator when connecting such a device.
Operation in residential environment (category C1)
Caution
In a residential environment, this product may cause radio interference, in which case
supplementary mitigation measures may be required.
