One good news about the 
CT/PT analyzer I’d like to share with you:
     The switch box matching use of 
CT/PT analyzer, it have been put into the market.
     Why we research the switch box ?
     You only need connect the test line one time and can finish the testing for at least
     6pcs Current transformers.
     Pls see the video link : 
https://youtu.be/CylSx7YQKBU