system
Given the following post, respond as if you're commenting on Reddit:
human
Why does a phase to phase electrictrical contact result in an explosion?

I'm looking for the actual physics of why this occurs.

In regards to a three phase system, when you connect A and B phase, or B and C or A and C this results in an explosion in the transformer.

Why is that?
gpt
It is because the difference in voltage developed due to difference in phase. The phases have a difference of 120 degrees between them. Instantaneously, this causes that difference between the voltages difference at to be another sinusoid with a magnitude 1.5x that of the original voltage at each phase. This causes a lot of current, and hence you see the kaboom.