Questions & Answers > Form 7s

Has anyone had any experience with form 7s meters with a thermal demand? I am thinking about using a Marwell adaptor to convert our form 7s to form 6s for AMI implementation. Anyone have any advice?

September 21, 2013 | Unregistered CommenterPeetey

For the conversion you are suggesting in your post I believe this is a great idea for removing a little known meter form from your metering system. The Form 7S meter is a variation of the Form 6S meter that uses a 7 terminal socket and creates a current return common connection inside of the meter. Installing an adapter base and wiring it for the Form 6S meter will allow you to remove a 7 terminal meter socket and any possible confusion related to a self-contained (7 terminal) meter socket also. Make sure to safely shunt the connected CTs before proceeding with this work.
I am not sure why your question included the thermal demand register on the 7S meter. If you have specific information you need concerning thermal demand registers please let me know.

September 30, 2013 | Unregistered CommenterBrad