power outage

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  #1  
Old 11-11-16, 10:48 AM
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power outage

My wife wanted to go to the Johnson City mall this morning to do some shopping. I dropped her off and continued down the road to Harbor Freight. I made a purchase and headed back toward the mall when all the traffic lights quit working. Some intersections weren't too bad with folks taking turns while others were a bit scary. My wife called while I was in route and said the power went out at the mall and they asked the customers to leave their unpaid items and exit the store.

We had planned to go to a Japanese restaurant we like for lunch but just about everything was closed down due to the lack of power. Tuned into a JC radio station to see if we could find out why but it was off the air.

When we got home I went to a JC news site to read it was a brief power outage [according to when they said the power was restored it was 1 hr] caused by tripped breaker. 17,000 customers [not sure if that includes traffic lights] were without power. I didn't know that in this day and time that 1 hr without power was considered brief
 
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Old 11-11-16, 11:32 AM
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Yes, a one-hour outage IS a short outage, especially when compared to several hours or even days. What many lay-people do not understand is that there are safety procedures that MUST be followed before restoring power. It isn't as simple as just flicking a circuit breaker handle back to the on position.
 
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Old 11-11-16, 01:57 PM
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I'm not sure if this true but I was told that during lighting storm, if a power power pole or transformer is disrupted by a near hit, it will cut power momentarily then reset. But if the same thing happens three time in a row within a short period it will shut down and must be reset manually.
 
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Old 11-11-16, 02:03 PM
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After living through 3, week long (give or take) power outages and most of a summer with rolling outages, I can handle an hour or so.
 
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Old 11-11-16, 02:10 PM
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My wife and I are considering a natural gas whole house generator. We have a company coming out next Friday to give us a quote. I wired in my own gasoline generator with a transfer switch several years ago, but she feels since we're getting up in years we should get the automatic natural gas.
 
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Old 11-11-16, 05:52 PM
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Norm, utility circuit breakers located in substations and serving large areas almost always have a device called a recloser. They will automatically close a CB that has opened due to a short circuit after a few cycles of the AC waveform. This is because the majority of short circuit trips are caused by transient events such as a bird or other animal frying itself between two phases or from lightning strikes or some other short-term (milliseconds) event that clears itself.

There is no particular set number of times a recloser will activate, they are set differently depending on a number of factors and the time between trip and reclose may differ according to the number of times the CB trips in any particular time frame.
 
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Old 11-11-16, 06:42 PM
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So that 3 x's and you're out is not necessarily true. Each substation or area is customized based on local circumstances. Good to Know.
 
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Old 11-12-16, 04:08 AM
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Must not have been a very news worthy event as none of the other news outlets seem to have covered it along with no updates at the JC news site. Sure seemed chaotic to me, especially with no working traffic lights ..... but then maybe I don't get out much
 
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Old 11-12-16, 04:26 AM
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Where our power goes underground are fuses. When a disruption occurs, you can hear the explosion. Twice in a month the crews have worked tirelessly to repair a couple of underground failures. One in a lot down the mountain and one in my front yard.

BUT, this is what we are faced with, now. Both electrical service and cell towers are taking a hit, not to mention the people having to evacuate. 17 separate fires. We suspect arson.

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  #10  
Old 11-12-16, 04:49 AM
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Ya, we're under drought and no burn conditions ...... and my wife just bought her dead sister's old place which has been under fines for not tearing the house down after a major fire. She got it for a song from the drug dealer/owner and the county has temporarily suspended the fines but guess who's in charge of tearing it down and cleaning the lot up Was hoping to finish burning it but can't get a burn permit.
 
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