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dogskidsx2
"Dirty" Electrical Power?

After going through at least 4 diff types of coffeemakers in 12 or so months(all used the same kitchen outlet) and at least as many Orel electric toothbrushes(all using the same bathroom outlet), I wonder if there's something wrong with the electric current rather than the quality of the personal appliances? These are appliances that are left plugged in all the time and I wonder if something in the wiring is causing them to malfunction? They don't stop working altogether, they just operate strangely after awhile, ie., toothbrush head won't stop rotating until placed onto base and coffeemakers dont get coffee hot enough anymore. Any ideas? Thanks.

canuk
Re: "Dirty" Electrical Power?

Sounds like the appliances.

Try unplugging the coffee maker when not in use to see if that makes a difference.

djohns
Re: "Dirty" Electrical Power?

Is it just small appliances that are acting up , or do you notice anything strange with major appl. like the Fridge , dishwasher , washing machine , etc. ? What about the television ? Have you inspected any of the receptacles and wiring yet ? Connections in the breaker box ?

There IS such a thing as " dirty " electrical power , but it doesn't manifest itself that way and you would have a lot of other issues as well . Best not to go there .

canuk
Re: "Dirty" Electrical Power?

I'm sure more sensitive devices like electronics would exibit issues than something like a coffee maker not heating as much.

djohns
Re: "Dirty" Electrical Power?
canuk wrote:

I'm sure more sensitive devices like electronics would exibit issues than something like a coffee maker not heating as much.

Exactly ! The TV and computer would be freaking out .

Re: "Dirty" Electrical Power?

There are such things a line filters for A/V applications Its worth a try for about $20
Corinex Powerline Electrical Noise Filter at any electroinics store.
If you have aluminum wiring you may need an electrician check out your service- start with the power company.
The pic is of ALum panel the AL gets loose due to disimular metals
you may need a Infrared scan also.

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kentvw
Re: "Dirty" Electrical Power?

We have a couple of recording meters that see almost continuous use by customers who swear they have issues with the quality of power feeding their businesses. (Mostly computer issues.) With these meters we can monitor amperage, voltage, spikes, sags, Hz, second by second. In the three or so years we have been offering this service I have never seen an issue on the utility side.

Not to say it does not happen but from what I have seen it is very rare.

djohns
Re: "Dirty" Electrical Power?
kentvw wrote:

We have a couple of recording meters that see almost continuous use by customers who swear they have issues with the quality of power feeding their businesses. (Mostly computer issues.) With these meters we can monitor amperage, voltage, spikes, sags, Hz, second by second. In the three or so years we have been offering this service I have never seen an issue on the utility side.

Not to say it does not happen but from what I have seen it is very rare.

Thanks Kent . We ( the utility ) usually get the blame for most electrical problems . Those power quality monitors are worth their weight in gold . What kind of resolution and sample rate do your's have ?

kentvw
Re: "Dirty" Electrical Power?
djohns wrote:

What kind of resolution and sample rate do your's have ?

Shortest is a one minute sample if not connected to a PC. Not sure on the resolution.

Edit: We expect them to be soon out dated with the recent advent of the gigs of storage that can be put on cards.

canuk
Re: "Dirty" Electrical Power?

Heck .... some years ago the UPS equipment that I serviced had models with built in line power monitoring for recording all that.
It was a great tool for also troubleshooting sites for power issues or the equipment.

JLMCDANIEL
Re: "Dirty" Electrical Power?

We used the recorders for years, the only time the utility was a problem was during grid switching, usually between midnight and 3 A.M. Most noisy electric was cause internally by such things as old relay panels or under powered motors. I always designed in filters in our equipment to handle most of it and a UPS would take care of the rest.
Jack

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