by Myrna Velasco September 23, 2016
For the seventh straight year, the
experienced forced outages of the National Grid Corporation of the Phillippes
(NGCP) had been down and allowed it to even exceed performance targets.
The company said it logged improved
performance across all domains, with the biggest power grid in Luzon reducing
outages by 73-percent.
Visayas, for its part, also pared
its forced outages by 86-percent; while Mindanao had been lowered by
67-percent.
The system operator has explained
that frequency of tripping (FOT) “is a key performance indicator which measures
the number of times the high-voltage transmission lines tripped or experienced
forced outages for every 100 circuit-kilometers.”
It expounded that to achieve
improved performance, “several system upgrades and facility expansions were
implemented.”
In particular, NGCP said “Luzon
grid’s rating this year is higher compared to the 2015 figure of
99.4125-percent.” The other grids also maintained the same ratings last year.
The other index that was measured
had been on congestion availability indicator (ConA), which in particular,
delves with measuring the congestion experienced by lines identified as
critical.
That is the same yardstick that
gauges the loss severely impacting on the operations of the Wholesale
Electricity Spot Market. NGCP said it posted 99.72-percent rating on this
compared to last year’s 99.583-percent in 2015.
The NGCP further noted that all
three grids reported an almost 100-percent compliance “with voltage and
frequency limits.”
Such limits, as pointed out, are
measured by the percentage of timing “during a given period that the system
frequency or voltage,” set within allowable limits.
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