In a 3 phase Star connected system, load current completes its path through the neutral..In a 3 phase delta connected, how does the load current flow?

In delta we have no neutral it is a phase by phase to get415v but if you get a neutral in star you get 240v that is between phase and neutral.

For generalization, we will consider a balance3-phase load system. When Y-connected the Line current is equals the phase current. When Delta-connected the Line current is equal to the phase current X1.73, and always remember that in a circuit node (or connecting point) currents leaving is equal to currents coming.

In3 phase delta connected system the load current circulates between the three phase conductors. It is known as Line current.

There phase delta system has virtual neutral