More nerve-racking than any single repair was the complete shutdown of the dlrs 2 billion-plus telescope for the replacement of the central power controller.
12.
Saturable reactors at mains ( line ) frequency are larger, heavier, and more expensive than electronic power controllers developed after the introduction of SCRs.
13.
The family of engines is designed to use the company's own power controller, Lithium polymer battery pack and charger, as an integrated package of components.
14.
The telescope departed with more powerful solar wings, a better central power controller and the most advanced optical camera ever launched to study the universe.
15.
The battery pack is projected to use a power controller integral to the motor housing with electric motors weighing less while using less rare earth metal.
16.
Three further notches spaced out over the power range corresponded to the'Series, Parallel, Weak-Field'( 2, 3 & 4 ) settings of power controllers in multiple unit stock.
17.
The Hubble Space Telescope is alive and in stable condition Wednesday, with electricity surging through its instruments, after astronauts performed a heart-stopping replacement of its central power controller.
18.
Not only were the spacewalks difficult and jammed with work, the telescope had to be completely shut down for the power controller replacement, something that had never been intended.
19.
They will return to Earth on Tuesday, bringing back the solar wings, power controller, obsolete camera and other old telescope equipment that was removed to make room for the new.
20.
There was a single driving position at one end of the locomotive with the power controller on one side and the Westinghouse air-brake valve and hand-brake column on the other.
