5.2.17 Power Factor
The power factor (Pf) is the relation between I
1
and I
RMS
.
The power factor for 3-phase supply:
Pf
= 3 ×
U
×
I
1 ×
cos
ϕ
3 ×
U
×
IRMS
The power factor indicates the extent to which the frequency converter imposes a load on the mains supply. The lower the power factor, the higher the
I
RMS
for the same kW performance. In addition, a high power factor indicates that the different harmonic currents are low.
5.2.18 Emission Test Results according to Generic Standards and PDS Product Standard
The following test results are achieved on a system consisting of a FCD 300 400 V screened/armoured control cable, control box with potentiometer,
screened/armoured motor cable, screened/armoured brake cable as well as LCP with cable.
VLT FCD 300 with class 1A RFI-filter
Product standard/environment
Basic standard
Complies
EN 50081-2/Industry
EN55011 group 1 class A
Complies
EN 61800-3/First environment restricted distribution
CISPR 11 group 1 class A
Complies
EN 61800-3/Second environment unrestricted distribution
CISPR 11 group 2 class A
FCD 303-315
10 m screened/armoured motor cable
FCD 322-335
5 m screened/armoured motor cable
1
1
For 10 m cable please contact Danfoss.
NB!
FCD 300 with class 1A RFI-filter is a product of the restricted sales distribution class according to IEC 61800-3. In a domestic environ-
ment this product may cause radio interference in which case the user may be required to take adequate measures.
5.2.19 Immunity Test Result according to Generic Standards, PDS Product Standards and
Basic Standards
In order to document EMC immunity tests have been made according to following product standards on a system consisting of a FCD 300, a screened
armoured control cable with control box and potentiometer, screened/armoured motor cable, screened/armoured brake cable and LCP with cable.
FCD 300
Product standard/environment
Test results
Complies
EN 61000-6-2 / Industry
See Basic standards test results.
Complies
EN 61800-3 / Second environment
See Basic standards test results.
Used EMC standards
Emission
EN 50081-2:
Generic emission standard part 2: Industrial environment.
IEC/EN 61800-3:
Adjustable speed electrical Power Drive STystems part 3: EMC product standard including specific test methods.
EN 55011:
Industrial, scientific and medical (ISM) radio-frequency equipment. Limits and methods of measurement.
CISPR 11:
Industrial, scientific and medical (ISM) radio-frequency equipment. Limits and methods of measurement.
Immunity
IEC/EN 61000-6-2:
Generic immunity standard part 2: Industrial environment.
IEC/EN 61800-3:
Adjustable speed electrical Power Drive Systems part 3: EMC product standard including specific test methods.
Basic standards
IEC/EN 61000-4-2:
Electrostatic discharge immunity test.
IEC/EN 61000-4-3:
Radiated, radio-frequency, electromagnetic field immunity test.
IEC/EN 61000-4-4:
Electrical fast transient/burst immunity test.
Simulation of fast switching transients like relay contact bounce, interruption of inductive loads, etc.
VLT
®
Decentral FCD 300 Design Guide
5 All About FCD 300
MG.90.S1.02 - VLT
®
is a registered Danfoss trademark
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