The tripping off of a generation facility triggered power disturbances in Negros and Panay on Friday, April 28, the National Grid Corporation of the Philippines (NGCP) said.
Another system disturbance occurred at 2:56 p.m. Friday and initial findings show that it was caused by the tripping of a generation facility, and NGCP statement said.
This caused power interruptions and fluctuating power.
The NGCP also monitored a system disturbance at 1:50 p.m. Thursday which also affected the Visayas grid.
“Initial findings show that a distribution utility-owned line tripped, and caused power plants to disengage from the transmission system (on Thursday). An assessment of NGCP’s facilities shows that our protection systems functioned as intended,” the NGCP said.
“We are coordinating closely with the generators and distribution utilities and are working on the expeditious restoration of affected NGCP lines and facilities,” it added.*