Motor Connection Data - ABB ACQ580-34 Hardware Manual

118 Technical data
Harmonic distortion

Motor connection data

Motor types
Voltage (U )
2
Frequency (f )
2
Frequency resolution
Current
Harmonics are below the limits defined in IEEE 519-2014, and G5/4. The drive
complies with IEC 61000-3-2, IEC 61000-3-4 and IEC 61000-3-12.
The table below shows typical values of the drive for short-circuit ratio (I
to 100. The values will be met if the supply network voltage is not distorted by other
loads and when the drive operates at nominal load.
Nominal bus voltage V at PCC
V ≤ 690 V
THDv Indicates the total magnitude of the voltage distortion. This value is defined
as the ratio (in %) of the harmonic voltage to the fundamental (non-har-
monic) voltage:
THDi Indicates the total harmonic current distortion of the wave form. This value
is defined as the ratio (in %) of the harmonic current to the fundamental
(non-harmonic) current measured at a load point at the particular moment
when the measurement is taken:
40
∑U
2
THDv =
U
PCC Point on a public power supply system, electrically nearest to a particular
load, at which other loads are, or could be, connected. The PCC is a point
located upstream of the considered installation.
40
∑ I
2
THDi =
I
I /I Short-circuit ratio
sc 1
I Maximum short-circuit current at PCC
sc
I Continuous rms input current of the drive
1
I Amplitude of the current harmonic n
n
U Supply voltage
1
U Amplitude of the voltage harmonic n
n
* The short-circuit ratio can influence the THDi value
** Other loads can influence the THDv value
Asynchronous AC induction motors, permanent magnet motors and ABB synchron-
ous reluctance motors (SynRM motors)
0 to U nominal, can be boosted higher but requires derating. Contact ABB for more
1
information.
0...500 Hz
Note: Operation above 150 Hz can require type-specific derating. For more inform-
ation, contact your local ABB representative.
For drives with du/dt filter: 0...120 Hz
For drives with sine filter: 0...120 Hz
0.01 Hz
See section Ratings
THDi (%)
3*
2
n
100%
•
1
2
n
100%
•
1
/I ) of 20
sc 1
THDv (%)
< 3**