Russell:
This is the right group.  We have an opinion on everything.  

Power factor is tied up with the complex subject of power quality and low
frequency emissions.  The US controls this on a facility basis with IEEE 519
and in Europe it is controlled by the EMC Directive under EN 61000-3-2.
This means it is on a product basis.

In Europe the control is down to 25 Watts if a luminary and 50 Watts for all
other products.

There is an EMC workshop starting tomorrow at the Sheraton at the BWI
airport where two days is going to be devoted to this subject.

Dave George
Unisys

-----Original Message-----
From: Russell Anderson [mailto:[email protected]]
Sent: Wednesday, May 05, 1999 4:33 PM
To: 'emc-pstc'
Subject: Power Factor


I don't know if this is the right group. I know that with the increase 
in power supplies that convert the AC voltage to DC there has been 
an increase in concern for keeping the power factor of the 
instrument close to unity. Is this a power utility problem or does it 
also apply to the small electronic instrument?

Are the standards the same in the US and Europe and other 
countries? What are the standards? Do they apply to all 
equipment?

Thanks in advance for any information.

Best Regards,

--------------------------------------------------
Russell Anderson         Campbell Scientific, Inc.
(435) 750-9697               815 W. 1800 N.       
(435) 750-9639 FAX           Logan, UT 84321      
[email protected]      KD7EOV                    
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  • Power Factor Russell Anderson
    • RE: Power Factor George, David L

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