(UPDATE) Meralco: Expect longer brownouts


Posted at Oct 08 2009 05:15 PM | Updated as of Oct 09 2009 07:11 AM

3 Meralco substations 'trip' day after transformer fire

MANILA - Residents in Metro Manila, mostly those in the eastern part, will have to bear with rotating and longer blackouts after 3 substations of Manila Electric Co. (Meralco) were damaged a day after a transformer of the National Grid Corp.'s (NGC) substation in Taytay, Rizal caught fire.

Power distributor Manila Electric Co. (Meralco) on Thursday evening said power outages on Thursday may be extended after 3 of its substations “tripped.” Meralco said the substations affected were those in Hillcrest, Mandaluyong and SM - Shangri La substations.

Meralco said that the “tripping” was “due to critical loading and in its attempt to shift load” after the power supply from the NGC substation in Taytay, Rizal was cut after the fire. The systems operators of the NGC and Meralco have been coordinating since Wednesday night to source the electricity supply to the affected areas from Zapote and Sucat substations.

Meralco said that this will result in longer duration of power outages in affected places.

Meralco has already been implementing since Thursday morning manual load dropping, resulting in a series of three-hour power outages particularly in the areas of Rizal, Marikina, Mandaluyong, Pasig, San Juan, and Quezon City.

Meralco had earlier warned that rotating brownouts would still occur during peak hours in the evening.

"Meralco, though, is doing its best to shorten the duration of the brownouts," it said.

The power outages began around 9 p.m. Wednesday, minutes after fire hit a transformer of the NGC substation in Barangay Dolores in Taytay town.

Meralco said, "both the NGC and Meralco are doing everything to restore normal state of power. We beg your indulgence for this inconvenience."

Most of the areas affected by the rotating brownouts were still recovering from the devastation caused by heavy flooding during the onslaught of tropical storm Ondoy (international codename Ketsana) two weeks ago.

Meralco had earlier provided a schedule for the previous 3-hour rotating brownouts. With the recent incidents of the tripping of the 3 substations however, they could not provide details yet on the schedules of power outages in affected areas.