Taking all 3 recent posts together…
@Abhishek_Singh said in the other thread that his system voltage was 127 V line-neutral, 220 V line-line, so I was originally answering that question. If you say your supply is 120 V line-neutral, 208 V line-line, then clearly you have a different system voltage and you need to design your set-up for that.
No. I’m in the UK, so I can’t check! I can only go by published information and what you on the ground tell me.
Agreed.
Yes, with the attendant caveats (see the comments in the sketch). As you’ve potentially got 150 A per phase, it would be a good idea to check (a) the maximum realistic load on each phase and (b) the cable diameter, to make sure you get the right CTs. (The shop CT can only accept a 25 mm2 cable - look at the “EmonTx in N.America” page for a whole list of larger current and aperture CTs.)
The default calibration in the sketch will clearly be wrong.
Ye Gods! That means that a “neutral”-earth fault in the appliance hasn’t got a fuse to blow in the plug!