Danfoss VLT AAF00x, Инструкция по эксплуатации

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6.9 300-**
300-00 Harmonic Cancellation Mode
Option: Function:
[0]
*
Overall
[1] Selective
[2] Parallel Enter the harmonic compensation mode.
Selective provides precise compensation of the
following harmonics: 5, 7, 11, 13, 17, 19, 23, 25.
Overall provides compensation for additional
harmonics, but with reduced precision in some
cases.
300-20 CT Primary Rating
Range: Function:
Application
dependent
*
[1 - 4000
A] Enter the primary rating of the
current transformers. For a 1000:5
current transformer, enter 1000.
Alternatively, this value can be
determined by performing an auto
CT detection using parameter
300-29.
300-22 CT Nominal Voltage
Range: Function:
342 V
*
[342 -
47250 V] Enter the network voltage at the location
where the CTs are installed. This value will
be different than the 300-10 only if a step
down transformer is used to connect the
active filter. Enter the transformer primary
side voltage.
300-24 CT Sequence
Option: Function:
[0]
*
L1, L2, L3
[1] L1, L3, L2
[2] L2, L1, L3
[3] L2, L3, L1
[4] L3, L1, L2
[5] L3, L2, L1 Enter the sequence of the current transformers.
Alternatively, this value can be determined by
performing an auto CT detection using
parameter 300-29.
300-25 CT Polarity
Option: Function:
[0]
*
Normal
[1] Inverse Enter the polarity of the current transformers.
Alternatively, this value can be determined by
performing an auto CT detection using parameter
300-29.
300-26 CT Placement
Option: Function:
[0] PCC
[1]
*
Load Current Enter the placement of the current
transformers. For a stand-alone active filter
installation, the CTs will typically be placed at
a PCC.
300-29 Start Auto CT Detection
Option: Function:
[0]
*
Off
[1] Enable Auto
CT Detection When enabled, the auto CT detection will
determine the CT primary rating, CT
sequence and CT polarity. CT Secondary
Rating, CT Nominal Voltage and CT
Placement must be entered by the user
before starting the auto CT detection.
Automatic CT detection cannot be
performed on CTs placed at the load
currents.
300-30 Compensation Points
Range: Function:
0.0
A
*
[0.0 -
8000.1 A] Enter the max accepted distortion of the
current in amps. Change these values to
customize the harmonic compensation. It is
possible to change the compensation points
for the following harmonics: 5, 7, 11, 13, 17,
19, 23, 25.
Selective mode provides compensation of
individual harmonics with permitted residual
levels on the supply line power. The
parameter "Compensation Point" defines the
permitted residual level into the supply of the
following harmonics.
300-35 Cosphi Reference
Range: Function:
0.500
*
[0.500 - 1.000 ] Enter the reference for cos-phi.
300-40 Master Follower Selection
Option: Function:
[0] Master If operating active filters in parallel, select
whether this AF is a master or a follower
active filter.
[1] Follower
[2]
*
Not Paralleled
How to Program VLT Active Filter AAF 00x
MG.90.V2.22 - VLT
®
is a registered Danfoss trademark 6-25
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