I used VTVMs for years, and built at least three of them but it won't give you accurate data on a capacitor that has to carry a heavy AC current. I think I still have two, if one survived the hurricanes a few years ago.. The other is here in the house. It has a huge meter movement, and compartments in the steel case to store the AC cord & probes.
We used to call that a 'Fuse' :)