Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

I Live In The Jungle - Mains Voltage Fluctuating


  • Please log in to reply
14 replies to this topic

#1 mypenry

mypenry

  • Members
  • 211 posts
  • OFFLINE
  •  
  • Location:Thailand
  • Local time:06:40 AM

Posted 26 July 2007 - 01:50 AM

Where I live, out in the wilds of Thailand, the electricity
Supply has started to become erratic and it looks as if the mains voltage
To my computer is now on a daily basis fluctuating up and down.
I do have a basic UPS , which for now allows me to carry on
but I can still hear the computer fan slowing and increasing
when the voltage Fluctuates ..

Ive checked my house wiring and all’s Ok.

I have had the local electricity company come and check
But as luck would have it , when they visited my house the voltage was
Stable and it’s not an easy thing to get them to come and check!! .

So I was just wondering if there’s a computer application
That I could use to record the mains voltage coming into my
Computer, so I could possibly take a printed report of the
Mains voltage activity to the electricity company to support
my claims about fluctuating voltage.

Any one know of such an application …?

Thanks Mypenry

BC AdBot (Login to Remove)

 


#2 dc3

dc3

    Bleeping Treehugger


  • Members
  • 30,714 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Sierra Foothills of Northern Ca.
  • Local time:04:40 PM

Posted 26 July 2007 - 02:09 AM

Your utility company should have a means of monitoring you voltage from your house, this would be your best means of monitoring it. There are meters out there that you could purchase to monitor the voltage but they are rather expensive.

Edited by dc3, 26 July 2007 - 02:10 AM.

Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.

 

 

 

 


#3 mypenry

mypenry
  • Topic Starter

  • Members
  • 211 posts
  • OFFLINE
  •  
  • Location:Thailand
  • Local time:06:40 AM

Posted 26 July 2007 - 03:03 AM

Thanks dc3, The problem here is that the utility company , well is not what you would normally get the guy who came to check
the voltage on the main outside cable used a bamoo ladder and was wearing pink rubber washing up gloves !!, if you get my meaning.

This is why I really need some form of hard evidence to go and show them that I am not making things up,
as for buying a recording voltage meter unit , well again in the real world may be yes but out here ...!!!

Thanks Mypenry

#4 Budapest

Budapest

    Bleepin' Cynic


  • Moderator
  • 23,579 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:09:40 AM

Posted 26 July 2007 - 03:07 AM

If your computer has built-in hardware monitoring chips then SpeedFan may be of help.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#5 DaChew

DaChew

    Visiting Alien


  • Members
  • 10,317 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:millenium falcon and rockytop
  • Local time:07:40 PM

Posted 26 July 2007 - 03:48 AM

Are your lights dimming when a heavy load kicks in? Like air conditioning? The main connectors feeding power may be arcing, and need to be cleaned and refastened. A basic ups is not sufficient for unstable rural power, I wonder if 2 units would help?

Edited by DaChew, 26 July 2007 - 03:49 AM.

Chewy

No. Try not. Do... or do not. There is no try.

#6 dc3

dc3

    Bleeping Treehugger


  • Members
  • 30,714 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Sierra Foothills of Northern Ca.
  • Local time:04:40 PM

Posted 26 July 2007 - 04:35 AM

Do you know what the voltage range is when it is fluctuating?

Another solution would be to use a AC Line conditioner, you can get a idea for it here.

Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.

 

 

 

 


#7 mypenry

mypenry
  • Topic Starter

  • Members
  • 211 posts
  • OFFLINE
  •  
  • Location:Thailand
  • Local time:06:40 AM

Posted 26 July 2007 - 06:22 AM

Thanks guy’s for the replys, yes when the power if fluctuating
The house lights start to go dim and back to bright, also
My fridge has circulating fans built in, and I can hear
Them also fluctuating.. . Ive put a volt meter on one of the
House mains socket outlets, its reading around 110 Volts
to 220 Volts AC.

As I type this I have the volt meter in front of me and the needle
Is jumping back and forth, when the voltage drops down it’s only for a split
Second, and then it jumps back to normal (220 Volts)

I am wondering what if any problems this may cause with my
Computer, even if its running off a UPS ..?

DaChew , your comment … A basic ups is not sufficient for unstable rural power, I wonder if 2 units would help? …. How would I hook up Two UPS’s to one computer …? ,

dc3 Ive had a look at the web site you recommended, the units shown
do they act like a more powerful UPS..?

Ive not yet made any notes of when the fluctuations
Are occurring just in case there’s a pattern some where..?

I would like to walk into the utility company’s office
with some sort of evidence …

Budapest thanks for the info I will give SpeedFan a try ..

Thanks Mypenry

#8 DaChew

DaChew

    Visiting Alien


  • Members
  • 10,317 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:millenium falcon and rockytop
  • Local time:07:40 PM

Posted 26 July 2007 - 06:45 AM

My dad had a similar problem "long ago and far away", defective fuse on the pole transformer, it was causing intermittent brown outs and even burned up a refrigerator compressor under warranty. He spotted the arcing one night and the power company came right out and replaced the fuse?
Chewy

No. Try not. Do... or do not. There is no try.

#9 mypenry

mypenry
  • Topic Starter

  • Members
  • 211 posts
  • OFFLINE
  •  
  • Location:Thailand
  • Local time:06:40 AM

Posted 26 July 2007 - 06:47 AM

Just to show you , here's the house power connection ... Made in Thailand :thumbsup:



http://i207.photobucket.com/albums/bb292/t...io1ELECT1-1.jpg



Thanks Mypenry

#10 mypenry

mypenry
  • Topic Starter

  • Members
  • 211 posts
  • OFFLINE
  •  
  • Location:Thailand
  • Local time:06:40 AM

Posted 26 July 2007 - 06:49 AM

Sorry I forgot to say this meter is in the street out side , open to the rain etc !!!

Mypenry

#11 usasma

usasma

    Still visually handicapped (avatar is memory developed by my Dad


  • BSOD Kernel Dump Expert
  • 25,091 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Southeastern CT, USA
  • Local time:07:40 PM

Posted 26 July 2007 - 06:53 AM

Most UPS's that I've seen have some sort of logging software built into them.
My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.

#12 dc3

dc3

    Bleeping Treehugger


  • Members
  • 30,714 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Sierra Foothills of Northern Ca.
  • Local time:04:40 PM

Posted 26 July 2007 - 10:01 AM

mypenry wrote
Thanks guy’s for the replys, yes when the power if fluctuating
The house lights start to go dim and back to bright, also
My fridge has circulating fans built in, and I can hear
Them also fluctuating.. . Ive put a volt meter on one of the
House mains socket outlets, its reading around 110 Volts
to 220 Volts AC.

As I type this I have the volt meter in front of me and the needle
Is jumping back and forth, when the voltage drops down it’s only for a split
Second, and then it jumps back to normal (220 Volts)

dc3 Ive had a look at the web site you recommended, the units shown
do they act like a more powerful UPS..?



These basically are power supplies that regulate the output voltage so that you don't have inconsistencies like you are experiencing now.


I would suggest taking your voltmeter and read the voltage at the incoming service, preferably on both the line and load side of the service meter. If you have fluctuations in the voltage there you have the evidence you need to address the "utility company", if you don't have fluctuation at that point that means that you have a wiring problem with you house wiring.

Let us know what you find.

Edited by dc3, 26 July 2007 - 10:07 AM.

Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.

 

 

 

 


#13 mypenry

mypenry
  • Topic Starter

  • Members
  • 211 posts
  • OFFLINE
  •  
  • Location:Thailand
  • Local time:06:40 AM

Posted 26 July 2007 - 10:46 AM

Thanks for the suggestions, while a volt meter was
Showing the voltage fluctuations in the house, Ive just been out side
And put a volt meter on the main incoming connections’ (the one’s that come down from the over head cables) into the meter unit and the out going feed from the meter unit into the house.
it shows the same voltage fluctuations (now showing a drop to 124 Volts)
on both the main incoming and outgoing terminals of the meter .

So it seem’s the problem lies with the power input to the house
The fluctuations have been on and off all day now, with no apparent
Pattern, this problem has only just started after being in this house
With the same electricity supply for 12 month’s now, the house
Is the last in the electricity feed for this road, so as its only recently
Been a problem I am wondering what the factors are that are now causing the
Problem..? , there are only may be 50 small Thai wooden houses in this village and no commercial properties at all.

May be its time for some detective work but if I call out the utility company
Again and again they arrive when there’s no voltage fluctuations they will not be too
Happy.

usasma ,…. your comment … Most UPS's that I've seen have some sort of logging software built into them. Sounds correct, the UPS I am using is made here
So I am going to take a trip (5 hours one way) to look for a new UPS that
comes with some sort of software monitoring tool.

I will let you know what happens next..

Many Thanks Mypenry

#14 projectfocus

projectfocus

  • Members
  • 479 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Brighton
  • Local time:12:40 AM

Posted 26 July 2007 - 10:59 AM

I would not draw that conclussion yet. That can only be the issue if there are no power connections in the house. A faulty fridge or what have yopu can draw the power down. If you want to do that test then flick all the fuse breakers or disconnect the power from the house then measure.

A UPS should not fluctuate the power the only time this should happen is if it never has a chance to charge or maintain charge and this should have some sort of voltage logf on it. I would say if the issue is the is with the supply. It does depend though on what type of circuitry they have to the house. If it is three phase supply or what have you it could be a phase is at low voltage. I am not too sure of international electrical connection standards.

How often are these fluctuations. Do you see them in the lights?
FocusToonSigStreched.jpg

#15 dc3

dc3

    Bleeping Treehugger


  • Members
  • 30,714 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Sierra Foothills of Northern Ca.
  • Local time:04:40 PM

Posted 27 July 2007 - 09:57 AM

I would not draw that conclussion yet. That can only be the issue if there are no power connections in the house. A faulty fridge or what have yopu can draw the power down. If you want to do that test then flick all the fuse breakers or disconnect the power from the house then measure.

A UPS should not fluctuate the power the only time this should happen is if it never has a chance to charge or maintain charge and this should have some sort of voltage logf on it. I would say if the issue is the is with the supply. It does depend though on what type of circuitry they have to the house. If it is three phase supply or what have you it could be a phase is at low voltage. I am not too sure of international electrical connection standards.

How often are these fluctuations. Do you see them in the lights?


In a village like that I would be surprised to see three phase, it's probably 230V @ 50Hz.

The type of fluctuations that are being described wouldn't occur from the sudden draw of an appliance, you would see a brown out. What's being described here is a sudden serious drop in voltage.

mypenry, how is the power distributed in the house, fuses or breakers? And how many circuits are there? And what is the size of the main fuse/breaker?

Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.

 

 

 

 





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users