Purpose of Using a Choke in VFD Circuit: Harmonic Reduction and Protection

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#1 21669948 02 Oct 2013 04:58

Vijay Dhavade Vijay Dhavade

Anonymous

Post #1
21669948 02 Oct 2013 04:58

what is the purpose of choke using in VFD ckt?
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#2 21669949 02 Oct 2013 19:44

Noreen Ras Noreen Ras

Anonymous

Post #2
21669949 02 Oct 2013 19:44

If you are referring to DC Link Chokes for VFD, they are are added so there is no overlap of diode conduction. Basically DC reactors (Link Chokes) in VFD circuits do not drop voltage to the drive and thus avoid nuisance faults.
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