Will 200A 1phase be sufficient for this 480v 3phase system?

[ADP]

I currently have 240/120v 1 phase 200A panel. The rural farm is getting a horse treadmill with a chiller plus 2 heaters.

The heaters are 240v 1Φ 10A each.
Treadmill is 480/277Y 3Φ max operating 36A. Max starting 62A.
Chiller is 480/277Y 3Φ 13.2A

I’m planning setting up like this:
200A or upgrade to 225A main service > 240v 3Φ 40HP digital phase converter with 97% efficiency > 3Φ 240D to 480/277Y 75kva transformer > subpanel> loads.

I’m assuming the transformer is also 97% power loss efficiency.
During winter the heaters will work.
Looking if chillers will only work during summer.

Do you think 200A will handle this or will I need to upgrade to 225A?

It may be close to the panel. Unsure yet. If it is, what’s the best way to ground/bond transformer?

 

[retirede]

I don’t know the answer, but now I can’t get the thought of a horse treadmill out of my head!

 

[Deltaforce]

You calculate without nec 220 demand factiors and so single phase service be sufficient but take account treadmill starting current
Record 220 calculations inspector
Also ensure single point grounding
Close spacing to service, reduce voltage drop

 

[Jraef]

I don’t know the answer, but now I can’t get the thought of a horse treadmill out of my head!

In my head, I was was calculating the 240V single phase amp load, when suddenly it dawned on me;

Why would a treadmill that is presumably for one horse at a time, require more than 1HP?

 

[zooby]

In my head, I was was calculating the 240V single phase amp load, when suddenly it dawned on me;

Why would a treadmill that is presumably for one horse at a time, require more than 1HP?

mind blown.....