Danfoss VLT AutomationDrive FC 302 Installation Manual page 21

Introduction
when dealing with harmonic limits containing low harmonic numbers, the IEEE 519 limits are lower than the 61000-2-4
limits. Low harmonic drives observe the total harmonic distortion as defined in IEEE 519 for all R
harmonic current fulfills table 10–3 in IEEE 519 for R
I /I (R ) h<11
SC L SCE
<20 4%
20<50 7%
50<100 10%
100<1000 12%
>1000 15%
Table 1.11 Permissible Harmonic Currents at the PCC
®
The VLT AutomationDrive FC 302 Low Harmonic Drive complies with the following standards:
•
IEC61000-2-4
•
IEC61000-3-4
•
IEEE 519
•
G5/4
MG37A322
Installation Manual
≥20.
sce
11≤h<17 17≤h<23
2.0% 1.5%
3.5% 2.5%
4.5% 4.0%
5.5% 5.0%
7.0% 6.0%
Danfoss A/S © Rev. 04/2015 All rights reserved.
. Each individual
sce
23≤h<35 35≤h
0.6% 0.3%
1.0% 0.5%
1.5% 0.7%
2.0% 1.0%
2.5% 1.4%
1 1
Total demand
distortion TDD
5%
8%
12%
15%
20%
19