[Lowfer] Re: Power outages

[Alberto di Bene]

A few months ago I measured with Spectran the 53rd harmonic of the 50Hz 
power
line here in Italy, over a period of a few minutes (don't remember how 
many).
You can see a capture of the screen here : 
http://www.qsl.net/i2phd/53x50hzita.jpg

The crossing line going up is a spur, probably caused my daughter 
switching on the TV.

73  Alberto  I2PHD

>Just to demonstrate grid frequency variation in the greek
>network (which is also synchronized with Bulgarian,
>Albanian etc utilities), I uploaded a GIF file which is
>actual frequency measurements for the period 16 to 20
>December 2000 (sorry, the date does not show onthe graph
>after I changed from Office 97 to Office 2000).
>
>I uploaded the file to my web site:
>
>http://www.qsl.net/sv1xv/pics/grid.gif
>
>as QTH.NET does not accept e-mail attachments.
>
>I did these measurements for a client who wanted to
>install a grid-connected 50 kW photovoltaic generator
>and had to pass this info to the manufacturer of the 
>DC/AC inverters.
>
>It is possible that in other parts of the world the
>frequency is regulated better!
>
>Costas SV1XV
>
>  
>