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Started by ART YEW LOOI
Thu, 08 Aug 1996 00:00
Re: MY: SHED LIGHT ON CAUSE OF BLACKOUTS
Author: ART YEW LOOI
Date: Thu, 08 Aug 1996 00:00
Date: Thu, 08 Aug 1996 00:00
69 lines
3182 bytes
3182 bytes
> > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * > POSTED WITH PERMISSION > Copyright Star Publications (Malaysia) Bhd > The Star Online, http://www.jaring.my/star/ > * * * * * * * * * * * * * * * * * * * * * * * * * * * ** > > August 4, 1996 (snipped) > When people realised this was no local breakdown, but a nationwide one, the > confusion turned to anger. Why? What went wrong? How could this happen again > after the 1992 blackout? > > The biggest question must be why the blackout originated from the same spot > -- near the Paka power station. (snipped) > Moggie said it was still unclear why the tripping occurred. What happened > immediately is quite clear though -- there was a cascading effect across the > nation and we fell into darkness. "trip"? it's about time we address the specific problem ... not just some general term "trip" ... > "Something is wrong with the whole protection system. There may be some > inherent fault. There's no proper discrimination (what trips). There must be > some way to prevent the whole thing from collapsing," said an engineer who > did not wish to be identified. there's obviously a design fault ... the design fault may not be the primary source of the initial failure but the design fault is definitely the reason for the propagation of the failure ... design fault is an *embarassment* ... it reflects on the designers' incompetency or lack of "technical robustness" ... this is usually hidden in the closet even if the fault is identified ... malulah, so to speak ... no one else will find out ... hence, no corrective action will be taken ... and the probability is high that the failure will recur ... > The engineers interviewed agreed that certain questions must be answered: > > * What exactly caused the tripping? what's the primary cause? how to isolate the primary cause to prevent recurrence? > * Where exactly did the fault occur -- at the distribution station or at the > transmission line? where else can we find similar fault? other systems may adopt similar design and it's a matter of time we experience the same failure .. ~ay~ ********************************************************************** Art Yew LOOI, GradIChemE, GradIEAust Department of Chemical Engineering Monash University Clayton VIC 3168 Australia. Direct Telephone : (IDD)+ 61-3-9905 1482 **********************************************************************
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