Harmonics Emission Requirements; Harmonics Test Results (Emission) - Danfoss VLT DriveMotor FCP 106 Design Manual

System Integration

3.3.2 Harmonics Emission Requirements

For equipment connected to the public supply network,
compliance with the following standards is required:
Standard Equipment type
IEC/EN 61000-3-2, Professional 3-phase balanced
class A equipment, only up to 1 kW
(1.5 hp) total power.
IEC/EN Equipment 16–75 A,
61000-3-12, Table and professional equipment
4 from 1 kW (1.5 hp) up to 16 A
phase current.
Table 3.2 Harmonics Emission Compliance
1) Power ratings relate to normal overload (NO), see
chapter 6.2 Electrical Data.
IEC 61000-3-2, Limits for harmonic current emissions
(equipment input current ≤16 A per phase)
The scope of IEC 61000-3-2 is equipment connected to the
public low voltage distribution system having an input
current of ≤16 A per phase. Four emission classes are
defined: Class A through D. The Danfoss drives are in Class
A. However, there are no limits for professional equipment
with a total rated power >1 kW (1.5 hp).
IEC 61000-3-12, Limits for harmonic currents produced
by equipment connected to public low voltage systems
with input current >16 A and ≤75 A
The scope of IEC 61000-3-12 is equipment connected to
the public low voltage distribution system having an input
current of 16–75 A. The emission limits are currently only
for 230/400 V 50 Hz systems and limits for other systems
are added in the future. The emission limits that apply to
drives are given in Table 4 in the standard. There are
requirements for individual harmonics (5th, 7th, 11th, and
13th), and for THDi and PWHD.
MG03M302
Design Guide

3.3.3 Harmonics Test Results (Emission)

MH1
0.55–1.5 kW
(0.65–2.0 hp),
Power size 1)
380–480 V
0.55–0.75 kW
Limit for R
(0.75–1.0 hp)
1.1–7.5 kW
(1.5–10 hp)
0.55–1.5 kW
(0.75–2.0 hp),
380–480 V
(typical)
Limit for R
Table 3.3 MH1
1) Power ratings relate to normal overload (NO), see
chapter 6.2 Electrical Data.
MH2
2.2–4 kW (3.0–5.0
hp), 380–480 V
Limit for R
2.2–4 kW (3.0–5.0
hp), 380–480 V
(typical)
Limit for R
Table 3.4 MH2
1) Power ratings relate to normal overload (NO), see
chapter 6.2 Electrical Data.
MH3
5.5–7.5 kW (7.5–
10 hp), 380–
480 V
Limit for R
5.5–7.5 kW (7.5–
10 hp), 380–
480 V (typical)
Limit for R
Table 3.5 MH3
1) Power ratings relate to normal overload (NO), see
chapter 6.2 Electrical Data.
Danfoss A/S © 12/2018 All rights reserved.
1) Individual harmonic current I
I I
5 7
32.33 17.15
98 86
sce
Harmonic current distortion factor (%)
THC
38
95
sce
1) Individual harmonic current I
I I
5 7
35.29 35.29
107 99
sce
Harmonic current distortion factor (%)
THC
42.1
105
sce
1) Individual harmonic current I
I I
5 7
30.08 15.00 07.70
91 75
sce
Harmonic current distortion factor (%)
THC
35.9
90
sce
/I (%)
n ref
I
11 13
3
6.8 3.79
59 48
PWHC
30.1
63
/I (%)
n ref
I
11 13
7.11 5.14
61 61
PWHC
36.3
86
/I (%)
n ref
I
11 13
5.23
66 62
PWHC
39.2
97
29
3