By Danessa Rivera (The
Philippine Star) | Updated August 24, 2016 - 12:00am
MANILA, Philippines – A power plant
of Aboitiz Power Corp. in Mindanao and of Energy Development Corp. (EDC) in
Visayas went on maintenance shutdown to improve their reliability to supply
power to the Visayas and Mindanao grids.
AboitizPower disclosed yesterday
Unit 1 of the 2x150-megawatt (MW) Davao coal-fired power plant of its
subsidiary Therma South Inc. (TSI) started its scheduled shutdown yesterday for
preventive maintenance activities.
“This maintenance activity is
necessary to review Unit 1 and to implement some corrective measures as needed
which should be similar in nature to the coverage of work done in the recently
planned outage of Unit 2 from June 18 to July 13,” TSI president and COO
Sebastian Lacson said.
The maintenance activity is
estimated to last until Sept. 7.
“We are confident that after this
outage, TSI should be better equipped to reliably meet the needs of our
customers. As always, we will try our best to keep the duration of this
interruption to a minimum,” Lacson said.
Originally scheduled to start Aug.
6, AboitizPower said the Unit 1 maintenance schedule was moved to Aug. 22 to
better adjust to the grid situation.
TSI is coordinating with electric
cooperatives and distribution utilities customers in Mindanao in order to
implement measures to mitigate the impact of the maintenance activity.
In another disclosure, EDC said its
77-MW Malitbog Unit 2 Power Plant in Leyte tripped last Aug. 17 after it
“experienced a flashover inside the high voltage terminal box.”
The plant tripping did not cause any
supply shortfall in Visayas since the facility was offline and was in the
process of testing and commissioning of its Automatic Voltage Regulator (AVR)
under the supervision of ABB, the manufacturer of the AVR, as part of a 30 day
scheduled maintenance outage.
“The incident did not have any
impact on the grid as Malitbog Unit 2 was not synchronized to the grid at that
time, and no injuries were sustained by any of the personnel involved,” it
said.
Together with ABB and other
consultants and contractors, EDC said it is currently conducting an assessment
of the extent of the repairs needed and a full review to determine all
contributing factors that led to the plant incident to ensure appropriate
measures are taken to enable the safe and reliable operation of the
unit.
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