Another problem at Gori nuke plant

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Another problem at Gori nuke plant

Two months after the suspension of three reactors at the Gori Nuclear Power Plant, another reactor at the country’s oldest nuclear plant stopped operation yesterday because of a glitch with connected electrical lines, according to the plant’s operator.

The power plant said power transmission lines delivering electricity from the plant in Gijang County, Busan, to a transformer substation in Sin Ulsan, South Gyeongsang, overloaded at 10:30 a.m., triggering an automatic suspension of the Gori-2 reactor.

A preliminary investigation showed that an overload occurred after one of the three power transmission lines had short-circuited and forced the other two lines to deliver more-than-usual electricity.

The cooling system of the light-water, 650,000-kilowatt Gori-2 reactor was not affected by the suspension and is functioning normally, the operator said.

“Gori-2 remains stable because we continuously provide electricity into it,” said Baek Jong-chan, a plant manager. “There is no radiation leak inside or outside the plant.”

Baek said there was no official schedule for the restart of the reactor, but added that it was possible the reactor could be brought back online as early as late yesterday.

In April, the nuclear plant suffered the suspension of three of its five reactors due to a malfunction.

The Gori-1 reactor, which began operations in 1978, was reopened last month after a four-week inspection, which concluded that there had been an electric circuit glitch.

A few days later, the Gori-3 reactor and the Gori-4 reactor went offline for two hours after technicians accidently touched a power cable during a safety check.


By Moon Gwang-lip [joe@joongang.co.kr]

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