Home |
Search |
Today's Posts |
#1
![]()
Posted to alt.electronics
|
|||
|
|||
![]()
Yesterday we had some weird problem from the power company. First I
noticed the light bulbs were flickering. I looked in my breaker panel and nothing appeared loose. This was happening in all parts of the house and also in the garage (separate main panel). Later in the day I was on the computer when I noticed the flickering was getting worse. I was just thinking "I better shut off the computer" when the lights suddenly got very dim. At that moment, my CRT monitor made a loud crackling sound and the screen looked like lightning radiating outward from the center of the screen. I instantly shut off my power strip which shut off the entire computer system. Seconds later the power went off entirely. After the power was restored, I thought the monitor would be trash, but it works fine, as does the computer and everything else that was on at the time (mostly just lights). I shut off the main breaker until the power was restored (put a neon tester across the mains from the meter to let me know). I have always believed that when power is restored. the surge of everyone's homes and appliances starting is more harmful than when the power goes off). So, I just leave my main breakers off till everyone else is up and running. Anyhow, why did my monitor get that "lightning" across the screen? Yea, I know it's the high voltage to the CRT, but why the crackling and flashes? I'd think that the brownout voltage would just shut off the monitor, but apparently not...... Any ideas? By the way, the power company must have lost one of the main transformers, or at least a main wire, because the power was out in almost half of the county, and stayed off for 2 hours 40 min. That flickering earlier in the day must have been caused by something "cooking" in the grid. One other odd thing. Maybe someone can explain this. After the power outage, my house phone (landline) did not work. I got a dialtone, but could not dial out. (just heard the dialtone while dialing, and the dialtone had a real noisy hum in it). My phone service comes from another county, so it was not a power problem to the company. But I know that there are these phone distibution boxes. Are these phone boxes using power from the grid to run them? When I have had power outages just localized to a few block area (like when someone smashed their car into a power pole), the phones still worked. At least my cellphone worked so I could call the power company !!! |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Power Brownout caused lightning on my Monitor | Electronic Schematics | |||
getting a house looked at before possibly buying it | UK diy | |||
Whirlpool dryer - where the heck is the door switch? I've looked and looked.... | Home Repair | |||
Should have looked the other way | Woodworking |