[OASIS Issue Tracker] Updated: (EMIX-406) basic definitions - CLONE-Omnibus issue for Aclara (David Haynes) comments

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     [ http://tools.oasis-open.org/issues/browse/EMIX-406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

William Cox updated EMIX-406:
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    Summary: basic definitions - CLONE -Omnibus issue for Aclara (David Haynes) comments  (was: basic definitions - CLONE -Omnibus issue for Acclara (David Haynes) comments)

> basic definitions - CLONE -Omnibus issue for Aclara (David Haynes) comments
> ---------------------------------------------------------------------------
>
>                 Key: EMIX-406
>                 URL: http://tools.oasis-open.org/issues/browse/EMIX-406
>             Project: OASIS Energy Market Information Exchange (eMIX) TC
>          Issue Type: Improvement
>         Environment: David Haynes
>            Reporter: Toby Considine
>            Assignee: Toby Considine
>
> 575     technical       The name "power units" has a mistake in its definition. "VA" is defined to be "apparent power" not "total power". "Total" is a flow direction not an energy type. (Refer to IEC 61968-9 Annex C or IEC 61968-2:2011 for an explanation of these concepts.)
> 575     technical       Is a definition of "voltage units" really needed? Isn't voltage always measured in volts? Doesn't the unit of measure description support an SiPrefix which can indicate "k" or "M"? Isn't the unit of measure always provided with the data?
> 575     technical       The row called "VAR units" is clearly a duplication of the information contained in the row "power units". A specification should only define something once.
> 739     technical       "qmax" contains a reference to an inverter. Must the power come from an inverter? Why is this word in the definition?
> 739     technical       Is "qmax" a reference to Q power? I suspect it is not. You should either define why you are using the letter Q or use a different letter. I suspect what is going on here is that you are assuming the reader is familiar with a power equation (such as S=P+jQ) that you have in mind, and you assume that all authors of all books on power engineering have used the same nomenclature. You should instead provide the formula you want the reader to know about.
> 739     technical       What is "voltVar" referring to? This is NOT a legitimate unit of measure. If this is a multipurpose field that you have defined, I would say that having dual use of a given field is a poor modeling practice. If it is always reactive power, then why call it "voltVar"? Is this a realtime snapshot of the current VAr output? The field is ill-defined.

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