This thread is to discuss the implications of using the new 20A and 200A CT’s, that are available for the IotaWatt, with other hardware systems provided by Open Energy Monitor.
My first, very basic, question relates to the burden resistors. It wasn’t clear to me if the 20A and 200A CT’s have their own burden resistors. Could someone please comment on this?
If I can get my head around the formulae and CT saturation etc then I believe it should be possible to use the new CT’s with at least some of the other hardware systems, in addition to IotaWatt.
We are concentrating on the emonTx and ESP8266 systems at the moment in combination with our own Smartphone app. The benefit of the Smartphone app means it’s a simple task of changing any of the variables without flashing new firmware to the hardware. That is, when I know which variables to change