No it wont be exactly the same all the time. +- 10% or less of each other as the loads vary is normal and a good range to shoot for when adjusting the balancing capacitor values. Same with voltage variations between the phases.Should the run current be the same across the 3 phases.
So with a 3 kW motor, on a lift rated at 3 tonnes, I would have thought that lifting a 1.5 tonne car wouldn't be too much for a 230 V, 13 A circuit, but the lift has blown a few 13 A fuses.The motor is rated at 3 kW, 380 V, 50 Hz and it drives a Stenhoj lift, much like this https://www.autopstenhoj.com/en/masterlift-2-35-pv-1010.html
Based on Tcmtech's circuit, here is how I wired it up:-
Many thanks to tcmtech for his circuit and suggestions.