Description - Danfoss VLT AHF 005 Operating Instructions Manual

Description

The Danfoss harmonic filters AHF 005 and AHF 010
are ensuring near sinusoidal line current minimising
the harmonic current emission into the mains 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
frequency converters. 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 - 525 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 fre-
quency converters
• High efficiency (> 0.98)
• User-friendly commissioning - no adjustment
necessary
• No routine maintenance required
* THiD of 10% or 5% will be achieved when the fol-
lowing conditions are met:
THvD of the system without the drive operat-
-
ing is less than 2%
- Filter is operating at nominal load
If these conditions are not fulfilled, a significant reduc-
tion of the harmonic components can still be achieved,
but the rated THiD values may not be achieved.
®
MG.80.B5.02 - VLT is a registered Danfoss trademark
AHF 005/010
Principle connection diagram of the Danfoss
harmonic filter.
Legends (as used throughout this manual):
U :
L
I :
AHF
I :
FC,L
I :
M
Line voltage
Input current of the filter
AHF
Input current to the fre-
quency converter
Motor current
3