K - Factor
K - Factor
(OP)
Could anyone give me any good websites which discusses the K factor (US) or factor K (europe)
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: K - Factor
Mike
RE: K - Factor
http://www.selinc.com/techpprs/6065.pdf
http://www.selinc.com/techpprs/6121.pdf
http://www.selinc.com/techpprs/6018.pdf
There are additional papers related to relaying at:
http://www.selinc.com/sel-lit.htm
http://pm.geindustrial.com/faq/Faq.asp
RE: K - Factor
http://www.powerstudies.com/content/resources/pg000158.pdf
Michael Sidiropoulos
RE: K - Factor
A description of the IEEE standard is
http://standards.ieee.org/reading/ieee/std_public/description/dtransformers/C57.110-1986_desc.html
RE: K - Factor
That was an excellent link and I vote a star for you.
RE: K - Factor
Jstickley, the K-factor or Factor K I was talking about was to do with transformer derating due to harmonics.
RE: K - Factor
Search the IEEE Transactions on Industry Applications for a very intresting dicussion on the origin of K-Factor and the drawbacks of that definition.
In Europe it is not common to use the K-Factor rating.
Two different applications have to be distinguised:
Dedicated converter transformer:
In this case it is common (and recommend by the approbiate IEC-standard) to specify the current harmonics for the most unfavorable operating condition when buying a transformer.
Distribution transfomer:
In this case most people don't worry about harmonics (regarding transformer heating!). I guess the reason is that in Europe the lines are not as much loaded with harmonics as in the US.