You have a short. We track them with a tool called a amp hound.
The short caused your old alternator to charge at full output till it burned out.
Your new alternator will suffer the same outcome.
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."
Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization