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Table 99: Compatibility Levels for Harmonics
Harmonic order (h)
Class 1 (V
h
%)
Class 2 (V
h
%)
Class 3 (V
h
%)
5
3
6
8
7
3
5
7
11
3
3.5
5
13
3
3
4.5
17
2
2
4
17<h≤49
2.27 x (17/h) - 0.27
2.27 x (17/h) - 0.27
4.5 x (17/h) - 0.5
Table 100: Compatibility Levels for the Total Harmonic Voltage Distortion THDv
Class 1
Class 2
Class 3
THDv
5%
8%
10%
10.17.4 Harmonic Results (Emission)
Power sizes from P1K1 (1.1 kW) up to P18K (18.5 kW) in T2 (200–240 V) and up to P90K (90 kW) in T4 (380–480 V) fulfill the limits
within IEC/EN 61000-3-12:2011, table 4.
Power sizes P110-P450 (110 kW–450 kW) in T4 (380–480 V) also comply with IEC/EN 61000-3-12:2011 even though not required
because currents are above 75 A. Typical harmonic line current emission values for R
SCE
above 120 are shown in
for power
sizes below 90 kW and in
for power sizes above 90 kW.
Table 101: Typical Harmonic Emission Values for VLT® Drives FC 102, FC 103, FC 202, FC 302 below 90 kW
Individual harmonic current Ih/Iref (%)
I5
I7
I11
I13
Typical value
38
20
10
8
Limit for R
SCE
≥ 120
(1)
40
25
15
10
Harmonic current distortion factor (%)
THC/Iref
PWHC/Iref
Typical value
(2)
42
41
Limit for R
SCE
≥ 120
(1)
48
46
1
According to IEC 61000-3-12:2011
2
The value depends on voltage range, power size and other factors. Please contact Danfoss to get information on specific values.
Table 102: Typical Harmonic Emission Values for VLT® Drives FC 102, FC 103, FC 202, FC 302 above 90 kW
Individual harmonic current Ih/Iref (%)
I5
I7
I11
I13
Typical value
38
20
10
8
Limit for R
SCE
≥ 120
(1)
(no limit applies because currents are above 75A)
Harmonic current distortion factor (%)
THC/Iref
PWHC/Iref
AJ300847815559en-000101 / 130R0337
156 | Danfoss A/S © 2020.09
Electrical Installation
Considerations
VLT® AQUA Drive FC 202
Design Guide