3.2.1.2 Harmonics Emission Requirements
For equipment connected to the public supply network,
compliance with the following standards are required:
Standard
Equipment type
Power size
1)
FCP 106 and
FCM 106
IEC/EN
61000-3-2, class
A
Professional 3-phase
balanced equipment, only
up to 1 kW (1.5 hp) total
power.
0.55–0.75 kW
(0.75–1.0 hp)
IEC/EN
61000-3-12, Table
4
Equipment 16–75 A,
and professional equipment
from 1 kW (1.5 hp) up to
16 A phase current.
1.1–7.5 kW (1.5–
10 hp)
Table 3.2 Harmonics Emission Compliance
1) Power ratings relate to 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
≤
16 A per phase. Four emission classes are defined:
Class A through D. The Danfoss frequency converters 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
frequency converters are given in Table 4 in the standard.
There are requirements for individual harmonics (5th, 7th,
11th, and 13th), and for THDi and PWHD.
3.2.1.3 Harmonics Test Results (Emission)
MH1
1)
Individual harmonic current I
n
/I
ref
(%)
I
5
I
7
I
11
13
0.55–1.5 kW
(0.65–2.0 hp),
380–480 V
32.33
17.15
6.8
3.79
Limit for R
sce
98
86
59
48
Harmonic current distortion factor (%)
THC
PWHC
0.55–1.5 kW
(0.75–2.0 hp),
380–480 V
(typical)
38
30.1
Limit for R
sce
95
63
Table 3.3 MH1
1) Power ratings relate to NO, see chapter 6.2 Electrical Data.
MH2
1)
Individual harmonic current I
n
/I
ref
(%)
I
5
I
7
I
11
13
2.2–4 kW (3.0–5.0
hp), 380–480 V
35.29
35.29
7.11
5.14
Limit for R
sce
107
99
61
61
Harmonic current distortion factor (%)
THC
PWHC
2.2–4 kW (3.0–5.0
hp), 380–480 V
(typical)
42.1
36.3
Limit for R
sce
105
86
Table 3.4 MH2
1) Power ratings relate to NO, see chapter 6.2 Electrical Data.
MH3
1)
Individual harmonic current I
n
/I
ref
(%)
I
5
I
7
I
11
13
5.5–7.5 kW (7.5–
10 hp), 380–
480 V
30.08
15.00
07.70
5.23
Limit for R
sce
91
75
66
62
Harmonic current distortion factor (%)
THC
PWHC
5.5–7.5 kW (7.5–
10 hp), 380–
480 V (typical)
35.9
39.2
Limit for R
sce
90
97
Table 3.5 MH3
1) Power ratings relate to NO, see chapter 6.2 Electrical Data.
Ensure that the short-circuit power of the supply S
sc
is
greater than or equal to:
S
SC
=
3 × R
SCE
× U
mains
× I
equ
= 3 × 120 × 400 × I
equ
at the interface point between the user’s supply and the
public system (R
sce
).
The installer or user of the equipment must ensure that
the equipment is connected only to a supply with a short-
System Integration
VLT
®
DriveMotor FCP 106/FCM 106
30
Danfoss A/S © 06/2016 All rights reserved.
MG03M202
3
3
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