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AFQm IP54
Instruction Manual
ENGLISH
reducing its energy consumption.
Range of values:
0.7... -0.7
Press the
key to save the modified settings.
7.8.- IEEE519
Note:
This screen is not visible on the
“slave”
devices.
This screen,
, may be configured if the device is to comply with the filtering limits specified in
the IEEE 519-2014 standard:
Figure 62: Configuration screen: IEEE519.
●
IEEE519
The device includes harmonic filtering functions to adjust the power for each harmonic to ensure that
the installation complies with the limits under the
IEEE 519-2014
standard. This standard gives rec-
ommendations regarding the harmonic emission limits generated by an installation, in order to avoid
both internal and external damage to devices and triggering of protections.
The standard specifies the limits for each harmonic at the network operator’s connection point, its
magnitude depending on the line’s short-circuit impedance, and maximum load current demand.
The aim is to limit current harmonics so that voltage distortion caused by them is acceptable. Accord-
ingly, a network with a high short-circuit impedance is more prone to voltage distortions caused by
the harmonic current, so the
IEEE 519-2014
standard is more stringent than in an installation with a
lower short-circuit impedance.
For the user, only three parameters need to be entered when configuring the device, which will auto-
matically select the maximum harmonic values to comply with the standard:
Note:
If this function is enabled, the device will only correct the harmonics to meet the requirements
of the established limits, instead of trying to cancel the harmonics altogether.
●
Generator
The
IEEE519-2014
standard establishes more restrictive limits for a generating installation. In such a
case, i.e., where energy may be exported, the appropriate box must be ticked.
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