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Old 06-17-2012, 12:03 PM   #46
jefro
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You are talking about switching over and you then used a major power outage.

On any normal day, any common customer may have power switched 20 times a day. Do you notice anything? No.
 
Old 06-17-2012, 12:34 PM   #47
westom
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Originally Posted by jefro View Post
On any normal day, any common customer may have power switched 20 times a day.
Switching is about adding or removing items while everything else remains connected. Or switching stepping transformer to a different voltage setting. No 'switching over' exists. No power 'switches over' from one generator to another. That was simply an invented myth.

First one generator goes on-line. Then extensive confirmations prove that addition does not cause grid instability even 200 miles away. Only then might a second generator go off-line. Connecting and disconnecting generators is a slow and meticulous process.

A consumer gets his power simultaneously from many generators. Electricity is fungible. Apparently you did not know that either.

Back to the point. Your co-op was not changing frequency if connected to any grid. Frequency variation is an anomaly that electric consumers neither see nor need protect from. But many retail salesmen will invent fears by claiming frequency variations can be destructive.

Continually denying without explaining why. Makes woefully obvious no grasp of how AC power (regional grid or local distribution) works. Why do you still contradict facts even found in that San Diego blackout report? Why do I read such reports and you do not?

Claiming a generator is connected in seconds (or shorter) says why you can be told frequency can change. Claiming the co-op can changed grid frequency is ridiculous. But then you posted so many denials without any reason to believe it. Empty denials identify those who know mostly from hearsay. Fictional fears are invented even by hearsay and retail salesmen. Mythical fears can increase profits and even get politician elected.

Electric consumers need not worry about mythical frequency changes. Other anomalies may exist. Frequency change is not one. But it does promoted sales of scams.
 
Old 06-17-2012, 12:43 PM   #48
onebuck
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Hi,

Power outage or load switching still require sync with the generator source type, load and the grid. Most will use some form of 'Synchroscope' to sync with the grid and generation source.

Even independent power sources must sync to the grid or something is going to go 'BOOM'. Why do you think we must have protection for on-demand systems to switch off-grid? Not just for safety reasons but damages to the grid or on-demand system. Isolation!

Depending on the type of source generation the time to bring online properly can be minutes to hours/days. No one would switch a source online until the system loads and sync are proper. Look at how parallel generators are used to balance and sync while isolated then switched when the load & sync are at optimum set points. There are documents for proper system sync for each generator type. Look it up!
 
  


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