How to set residual/remanent flux/magnetism?
How to set residual/remanent flux/magnetism?
(OP)
Hi, I am carrying out some switching measurements on a one-phase transformer and it would be very important that I could set the same residual flux before each measurement.
For instance, could I use DC-source so that through the winding flows DC-current that would set residual flux to some value? Furthermore, if I decrease the DC-current to zero, would the residual flux decrease on zero also?
Namely, it is not clear to me does the flux (after aplying DC-current) depends on residual flux which existed before the applying?
For instance, could I use DC-source so that through the winding flows DC-current that would set residual flux to some value? Furthermore, if I decrease the DC-current to zero, would the residual flux decrease on zero also?
Namely, it is not clear to me does the flux (after aplying DC-current) depends on residual flux which existed before the applying?





RE: How to set residual/remanent flux/magnetism?
This method would not be exact, but by doing the full pulse first, you'll erase residual flux history from the transformer.
Mike
RE: How to set residual/remanent flux/magnetism?
dave