Polarity of 3p core transformer

by Amith Menon
Tags: 3 phase, core, polarity, transformer
Amith Menon
Amith Menon is offline
Feb12-14, 12:35 AM
P: 1
I have a 380V,3 phase core type transformer which is being used as AC line choke in the incomer of a VFD.As we are using only the inductance property of the transformer,I was just wondering whether we could connect R phase of the supply to any winding and then follow the phase sequence accordingly.
Thanks in advance
Phys.Org News Partner Engineering news on Phys.org
SensaBubble: It's a bubble, but not as we know it (w/ video)
WSU innovation improves drowsy driver detection
Faster computation of electromagnetic interference on an electronic circuit board
Baluncore is offline
Feb12-14, 09:29 AM
P: 1,309
Welcome to the PF.
Yes. The only important thing is to make sure that the three windings are consistent and that one is not swapped end for end. For balanced phase currents, the shared core should have a sum zero field.

Register to reply

Related Discussions
air core transformer General Physics 0
transformer core Electrical Engineering 7
Current transformer polarity and power flow Electrical Engineering 0
Air core transformer Electrical Engineering 0
Transformer core saturation Electrical Engineering 1