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Faulty electrical circuit causes islandwide power outage

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BECAUSE of a major electrical fault on the Feeder 1 circuit fronting the Commonwealth Healthcare Corp., an islandwide power outage was experienced by Saipan residents in the early morning hours of Oct. 12, Commonwealth Cultural Day.

The Commonwealth Utilities Corp., in a statement, said the power outage began at 3:38 a.m.  Residents interviewed by Variety said the outage lasted for about six hours.

According to CUC, the fault caused an electrical surge, which tripped the Power Plant 1 station service and the Aggreko plant, causing under voltage at PP1. This, in turn, triggered the protective devices resulting in an islandwide power outage.

CUC said the problem was quickly repaired by its line crew as the power plant staff initiated preparations to begin the Black Start power restoration process to energize the high voltage 34.5kV underground transmission line and substations.

“The island power grid was fully restored by 10:24 a.m.,” CUC said.

As for water service, CUC stated that the Gualo Rai Tank Service Area went back online at 11:18 a.m. Monday, but two to three hours was needed for the system to fully pressurize for distribution of water.

Water service in the Papago Tank Service Area  was scheduled to be restored at 1:30 p.m., but customers were advised to allow two to three hours for the distribution lines to pressurize.

At 3:17 p.m. CUC stated that customers in the San Vicente Tank Service Area could continue to experience low water pressure due to low tank level.

Variety learned that water service was restored in the San Vicente Tank Service Area around 3:30 p.m.

November 2020 pssnewsletter

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