AHF 005/010
Installation
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Description
The Danfoss harmonic filters AHF 005 and AHF
010 ensure near-sinusoidal line current minimizing
the harmonic current emission into the line supply.
The Danfoss AHF 005 and AHF 010 are advanced
harmonic filters not to be compared with traditional
harmonic trap filters. The Danfoss harmonic filters
have been specially designed to match all the Danfoss
adjustable frequency drives. The filters AHF 010 and
AHF 005 are available in four voltage ratings.
•
380 - 415 V AC, 50 Hz
•
440 - 480 V AC, 60 Hz
•
500 V AC, 50 Hz
•
690 V AC, 50 Hz
The Danfoss AHF 010 and AHF 005 have the
following characteristics:
•
Small compact housing that fits into a panel
•
Easy to use in retrofit applications
•
AHF 010 reduces the total harmonic current
distortion to 10%*
•
AHF 005 reduces the total harmonic current
distortion to 5%*
•
Current rating from 10A - 370A
•
For higher power, modules can be paralleled
•
One filter module can be used for several
adjustable frequency drives
•
High efficiency (> 0.98)
•
User-friendly commissioning - no adjustment
necessary
•
No routine maintenance required
* THiD of 10% or 5% will be achieved when the
following conditions are met:
-
THvD of the system without the drive
operating is less than 2%
-
Filter is operating at nominal load
If these conditions are not fulfilled, a significant reduction
of the harmonic components can still be achieved, but
the rated THiD values may not be achieved.
Principle connection diagram of the
Danfoss harmonic filter.
Legends (as used throughout this manual):
U
L
:
Line voltage
I
AHF
:
Input current of the filter
AHF
I
FC,L
:
Input current to the
adjustable frequency
drive
I
M
:
Motor current
MG.80.B4.22 - VLT is a registered Danfoss trademark
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