[GreenKeys] Measurement of Power Line Noise

Richard Knoppow 1oldlens1 at ix.netcom.com
Sun Mar 24 20:02:41 EDT 2024


    Many years ago I had a tour of the Sylmar terminal of the Pacific 
Inter-tie. There was a yard full of switchable capacitors used to 
correct power factor. I was out there when some switching was done. 
Sounded like an artillery barrage. Some may not know that capacitors 
expand and contract during charging or discharging. Where a lot of power 
is concerned they can sound like high explosives going off. I was no 
more than fifteen feet away. Wow.
     You will see correction capacitors on power poles. And I have heard 
of power companies offering discounts to customers who could provide 
loads suitable for PF correction.

On 3/24/2024 2:42 PM, steve bennett via GreenKeys wrote:
> BS for sure but there could be some basis in truth.
> My electrical engineering teacher said that the power company would 
> offer price incentives
> to industrial customers if they could improve their power factor.
> So for example if a factory had a lot of motors which present an 
> inductive load they could improve
> their power factor by adding capacitance.
> Why would the power company want this?
> Because reactive loads cause energy to be lost in the transmission lines.
> So yes this could be a real thing in an industrial setting but for the 
> average joe at home it's BS.
> 
> -Steve Bennett

-- 
Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998


More information about the GreenKeys mailing list