'resumed operating' is correct and usable in written English.
It is usually used to describe the act of starting something back up, or continuing something which had stopped. Example sentence: "After all the necessary repairs had been made, the factory resumed operating."
And after a temporary shutdown and repairs at Daiichi, Tepco resumed operating the plant.
It has resumed operating in those states except for Colorado and Louisiana (it doesn't operate in Alaska).
For the most part, public transit systems had resumed operating close to a normal schedule, with some exceptions, and most major highways and roads were navigable.
The last of Long Island's school districts that had been afflicted by Hurricane Sandy resumed operating in some fashion on Tuesday, according to Lorraine Deller, executive director of the Nassau-Suffolk School Boards Association. Nassau-Suffolk School Boards Association
DUBAI (Reuters) — Saudi Aramco, the world's biggest oil producer, has resumed operating its main internal computer networks after a virus infected about 30,000 of its workstations earlier this month, the company said Sunday.
The reactor, with two pumps feeding it, started again on July 23, operating at 70percentt of capacity, and on Wednesday it resumed operating at full capacity with all three pumps working, said Leslie Cifelli, a spokeswoman for the plant.
The revised moratorium would allow some drilling rigs to resume operating under certain conditions.
The company said it intended to resume operating, but on Friday the safety administration said it had stopped cooperating with inspectors and blocked access to safety records.
The announcement came after a bankruptcy judge in Delaware on Thursday approved KB's plan to reorganize debts and resume operating outside bankruptcy protection.
The executive added that even when ordered by the government to resume operating at a loss, many state-owned oil-fired plants had not done so, scheduling maintenance and repairs instead.
Assemblywoman Sandra R. Galef, an Ossining Democrat who organized the coalition after meetings last week with officials of Con Edison and the Nuclear Regulatory Commission, said the group believed the plant could resume operating, with additional safeguards like replacing the generator.
