Japan's TEPCO to gradually raise nuclear unit output

TOKYO, Oct 22 (Reuters) - Tokyo Electric Power Co (9501.T) said it would gradually raise power output at the 1,100 megawatt No.4 reactor at its Fukushima-Daini nuclear plant after a problem with a pump prompted it to cut output by more than two-thirds since last week.

TEPCO, Asia's biggest utility, has cut power output at the reactor to around 20-30 percent of capacity since Oct. 15 due to the problem with a pump.

A company spokesman said the the pump would be restarted as soon as preparations are complete and that the output is expected to reach full capacity within four days of the pump restart. (Reporting by Osamu Tsukimori; Editing by Chris Gallagher)