quantitykind:InstantaneousPower
http://qudt.org/vocab/quantitykind/InstantaneousPower
Types:
qudt:QuantityKind| Predicate | Object |
|---|---|
rdf:type |
qudt:QuantityKind |
dcterms:description |
For a two-terminal element or a two-terminal circuit with terminals A and B, \(\textit{Instantaneous Power}\) is the product of the voltage \(u_{AB}\) between the terminals and the electric current i in the element or circuit: \[p = u_{AB} \cdot i\] Where \(u_{AB}\) is the line integral of the electric field strength from A to B, and where the electric current in the element or circuit is taken positive if its direction is from A to B and negative in the opposite case. \[\] For an n-terminal circuit, it is the sum of the instantaneous powers relative to the n - 1 pairs of terminals when one of the terminals is chosen as a common terminal for the pairs. \[\] For a polyphase element, it is the sum of the instantaneous powers in all phase elements of a polyphase element. \[\] For a polyphase line consisting of m line conductors and one neutral conductor, it is the sum of the m instantaneous powers expressed for each line conductor by the product of the polyphase line-to-neutral voltage and the corresponding line current. |
qudt:applicableUnit |
|
qudt:hasDimensionVector |
qkdv:A0E0L2I0M1H0T-3D0 |
qudt:informativeReference |
|
qudt:latexDefinition |
\(p = ui\), where \(u\) is instantaneous voltage and \(i\) is instantaneous electric current. |
qudt:symbol |
“p” |
rdfs:comment |
“Applicable units are those of quantitykind:ElectricPower” |
rdfs:isDefinedBy |
http://qudt.org/3.1.11/vocab/quantitykind |
rdfs:label |
“Instantaneous Power”@en |
skos:broader |
quantitykind:ElectricPower |
Generated 2026-02-23T17:46:31.048-05:00