Power outage hits NAIA Terminal 3

[BratPAQ]

Something is not adding up.

I'm not an expert on this but I know UPS is not intended to be a backup power supply. Generators are, UPS para lang wag mag down while switching to generators.

[oj88]

I'm interested to find out what kind of UPS they were using. For something that is classified as critical infrastructure, I'm sure they're the online double-conversion types. But I can't understand how a failed fan/blower took down everything. These UPSs have bypass modes.... which should address any internal faults that may have developed within the UPS.

Instead of receiving 240 volts, which is the standard, the system received 380 volts. This destroyed crucial equipment called very small aperture terminals (VSAT), which receive satellite data used by planes and air traffic management systems.

Getting 380V instead of 220-240V is a wiring and/or possibly a configuration issue, not a power surge. Most large datacenter UPSs are 3-phase. So it would seem that while they were panic-stricken trying to put everything back online, they powered the 220-240V equipment directly from 380V, which is one of the standard Line-to-Line voltage of a 220V/380V 3-phase source. You get 220V from Line-to-Neutral, in this case.

I think they're playing the blame game to minimize their own failures, pointing a finger at Meralco for the "power surge". If that were actually the case, it would've affected everyone in the neighborhood, not just CAAP.

[glenn_duke]

I'm interested to find out what kind of UPS they were using. For something that is classified as critical infrastructure, I'm sure they're the online double-conversion types. But I can't understand how a failed fan/blower took down everything. These UPSs have bypass modes.... which should address any internal faults that may have developed within the UPS.



Getting 380V instead of 220-240V is a wiring and/or possibly a configuration issue, not a power surge. Most large datacenter UPSs are 3-phase. So it would seem that while they were panic-stricken trying to put everything back online, they powered the 220-240V equipment directly from 380V, which is one of the standard Line-to-Line voltage of a 220V/380V 3-phase source. You get 220V from Line-to-Neutral, in this case.

I think they're playing the blame game to minimize their own failures, pointing a finger at Meralco for the "power surge". If that were actually the case, it would've affected everyone in the neighborhood, not just CAAP.

Ang main reason is technical incompetence.
Most likely naka holiday break yung mga trained technicians.

[dr. d]

Ang main reason is technical incompetence.
Most likely naka holiday break yung mga trained technicians.

so what is the real cause? incompetence na kaya?
i want their heads to roll.
so much inconvenience to countless folks... national reputation tarnished... money lost...
this shouldn't be allowed to happen again.

[BratPAQ]

so what is the real cause? incompetence na kaya?
i want their heads to roll.
so much inconvenience to countless folks... national reputation tarnished... money lost...
this shouldn't be allowed to happen again.

This is the 2nd time na about power outage. If this keeps happening many international flights may remove their stop here in PH because of incompetence.

Saka yung mga tourists na na perwisyo nyan, sigurado hindi na yan babalik.

[oj88]

Ang main reason is technical incompetence.
Most likely naka holiday break yung mga trained technicians.

They probably didn't pray hard enough for no downtime before going on hiatus.

[Dr.Kamiya]

I'm interested to find out what kind of UPS they were using. For something that is classified as critical infrastructure, I'm sure they're the online double-conversion types. But I can't understand how a failed fan/blower took down everything. These UPSs have bypass modes.... which should address any internal faults that may have developed within the UPS.



Getting 380V instead of 220-240V is a wiring and/or possibly a configuration issue, not a power surge. Most large datacenter UPSs are 3-phase. So it would seem that while they were panic-stricken trying to put everything back online, they powered the 220-240V equipment directly from 380V, which is one of the standard Line-to-Line voltage of a 220V/380V 3-phase source. You get 220V from Line-to-Neutral, in this case.

I think they're playing the blame game to minimize their own failures, pointing a finger at Meralco for the "power surge". If that were actually the case, it would've affected everyone in the neighborhood, not just CAAP.

Looney tunes lol

[RavenBlack]

Parang dapat iba power socket ng 220v and 380v.


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