I'm putting together a box with an isolation transformer and variac (variable transformer) for our test bench.
It will be capable of a few amps (a few hundred watts) output. I found some digital voltage and current meters that are powered separately from incoming power, so they'll work fine down to 0Vac.http://amzn.to/2kyeO7Ahttp://amzn.to/2kyt8Bd
I'll check them when they get here to see if the power supplies for each must be isolated and therefore separate.
I also wish to incorporate some of the leakage test features of the Sencore Powerite PR57/PR570 AC Analyzer.
PR57 Powerite manual:http://drco.pairserver.com/manuals/sencore%20pr57.pdf
A bit better copy of the PR57 manual:http://akdatabase.org/AKview/albums/userpics/10007/Sencore%20PR-57%20%20Pamphlet.pdf
PR570 Powerite II manual:http://drco.pairserver.com/manuals/PR570-OSM.pdfhttp://drco.pairserver.com/manuals/SENCORE%20PR570.pdf
PR57 Powerite $120:https://offerupnow.com/item/detail/37745006/sencore-pr57-ac-powerite-variable-isolation-transformer-safety-analyzer
PR570 Powerite II $1116:http://www.ebay.com/itm/NEW-Genuine-Sencore-PR570-Powerite-II-Variable-Isolation-Transformer-New-/311620492946?hash=item488e075e92:g:ELMAAOSwBPNXRule