[citation][nom]Horhe[/nom]You think that the backup power supply will kick in instantly? 70 milliseconds is too short of a period for their backup power supply to start.[/citation]
Then why have one? if that's all it takes to kill it, if it was shorter, lets say 65ms it still wouldn't have kicked on, and probably killed everything still. if it was longer, say 300 ms yet it took 71ms for the backup to switch over, then the line is still dead, you see where I'm going? Plants draw an incredible amount of power, some of the furnaces and etching lasers take 10's of thousands of watts to power. The battery bank would nearly need to be the size of the plant to run it for more than a minute.
All that aside, some things are extremely sensitive to slight voltage differences such as wafer fabs. I think it's obvious they are looking into a way to improve uptime and power backup. Getting enough capacitors to run all the live current through is the real struggl. There are at least three stages to a backup of this type. Capacitor, battery and Generator. 70ms (at whatever percentage of normal voltage drop and at whatever current they were drawing) was probably more than the capacity of the capacitors for the plant could handle. There are many things that can go wrong... current, current. capacity capacitors.. hmmm wouldn't be the first time there was a demand conspiracy, lotso money to be made there, especially if paid off to do it.