Restore power to ship | 3: The Lost Flotilla Dead Space 3 Guide
Last update: 11 May 2016
There are three large mechanisms around the generator. First you have to move the rings down by using kinesis and then activate each generator to turn circular arrows over them (also use kinesis).
Do the same actions with each part. After starting the first and the third generator, you'll be attacked by a wave of Necromorphs.
Finally you have to activate the generator. Approach three consoles and press Activate button. Once you are done and the power in the ship is restored, go to the elevator and ride it down.