June 6 (Reuters) - Entergy Corp's 1,022-megawattUnit 2 at the Indian Point nuclear power plant in New Yorkautomatically shutdown on Wednesday morning.	    "Workers are investigating the main electrical generator asa probable cause of the shutdown," company spokesman Jerry Nappisaid.	    The electrical generator is located on the non-nuclear sideof the plant, he said.	    There was no release of radioactivity and equipmentperformed normally during the shutdown, he said.	    Indian Point 3 was operating at full power.