Danfoss VLT FC 102 Series Design Manual page 52

Introduction to VLT® HVAC D...
2.9.4 Harmonics Emission Requirements
2 2
Equipment connected to the public supply network
Options Definition
1 IEC/EN 61000-3-2 Class A for 3-phase balanced
equipment (for professional equipment only up to
1 kW total power).
2 IEC/EN 61000-3-12 Equipment 16 A-75 A and profes-
sional equipment as from 1 kW up to 16 A phase
current.
Table 2.21 Connected Equipment
2.9.5 Harmonics Test Results (Emission)
Power sizes up to PK75 in T2 and T4 comply with IEC/EN
61000-3-2 Class A. Power sizes from P1K1 and up to P18K
in T2 and up to P90K in T4 comply with IEC/EN
61000-3-12, Table 4. Power sizes P110 - P450 in T4 also
comply with IEC/EN 61000-3-12 even though not required
because currents are above 75 A.
Actual
(typical)
Limit for
R ≥120
sce
Actual
(typical)
Limit for
R ≥120
sce
Table 2.22 Harmonics Test Results (Emission)
If the short-circuit power of the supply S
or equal to:
SSC RSCE × Uline power × Iequ = 3 × 120 × 400 × Iequ
3 ×
=
at the interface point between the user's supply and the
public system (R
It is the responsibility of the installer or user of the
equipment to ensure that the equipment is connected
only to a supply with a short-circuit power S
or equal to what is specified above. If necessary, consult
the distribution network operator.
Other power sizes can be connected to the public supply
network by consultation with the distribution network
operator.
50
Design Guide
Individual harmonic current I
I I I
5 7 11
40 20 10
40 25 15
Harmonic current distortion factor (%)
THD PWHD
46
48
is greater than
sc
).
sce
sc
Danfoss A/S © Rev. 06/2014 All rights reserved.
Compliance with various system level guidelines:
The harmonic current data in Table 2.22 are given in
accordance with IEC/EN61000-3-12 with reference to the
Power Drive Systems product standard. The data may be
used to calculate the harmonic currents' influence on the
power supply system and to document compliance with
relevant regional guidelines: IEEE 519 -1992; G5/4.
2.9.6 Immunity Requirements
The immunity requirements for adjustable frequency drives
depend on the environment where they are installed. The
requirements for the industrial environment are higher
than the requirements for the home and office
environment. All Danfoss adjustable frequency drives
comply with the requirements for the industrial
environment and consequently comply also with the lower
requirements for home and office environment with a
large safety margin.
To document immunity against electrical interference from
electrical phenomena, the following immunity tests have
been made in accordance with following basic standards:
/I (%)
n 1
•
I
13
8
•
10
45
•
46
•
•
See Table 2.23.
greater than
EN 61000-4-2 (IEC 61000-4-2): Electrostatic
discharges (ESD): Simulation of electrostatic
discharges from human beings.
EN 61000-4-3 (IEC 61000-4-3): Incoming electro-
magnetic field radiation, amplitude modulated
simulation of the effects of radar and radio
communication equipment as well as mobile
communications equipment.
EN 61000-4-4 (IEC 61000-4-4): Electrical
interference: Simulation of interference brought
about by switching a contactor, relay or similar
devices.
EN 61000-4-5 (IEC 61000-4-5): Surge transients:
Simulation of transients brought about, e.g., by
lightning that strikes near installations.
EN 61000-4-6 (IEC 61000-4-6): RF Common
mode: Simulation of the effect from radio-
transmission equipment joined by connection
cables.
MG11BC22