Get a clamp on load meter like this https://www.tequipment.net/ExtechETK...utm_medium=cpc and test all of the loads on surge start. That is only an example, there are lots to choose from so look around.
The breaker may be oversized to account for the starting surge, or the electrician may not be your best friend. In general a piece of equipment uses a larger breaker than the running amps but over double is not typical. For things with a high surge a slow trip breaker slightly over the need is far more common.
For your electrical usage you can not just add up the amp ratings of the breakers, because that will not even give you an estimate you can work with. If done properly the breaker is sized to match the gauge of the wire used, it has no bearing on what the equipment needs. On an easier scale, look at 12 ga copper wire, as long as the run is within usual limits as to length, it will get a 20A breaker, but maybe it only has a 5 or 6 A load on it. Read the tag on your equipment to get the running amps or watts, if the tag gives watts, just divide that by the volts for the amps.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.