IEVref: | 103-07-14 | ID: | |

Language: | en | Status: Standard | |

Term: | phasor | ||

Synonym1: | complex RMS value [Preferred] | ||

Synonym2: | |||

Synonym3: | |||

Symbol: | |||

Definition: | representation of a sinusoidal integral quantity by a complex quantity whose argument is equal to the initial phase and whose modulus is equal to the RMS value
Note 1 to entry: For a quantity $a(t)=\widehat{A}\text{cos}(\omega \text{\hspace{0.05em}}t+{\vartheta}_{0})$ the phasor is $\underset{\_}{A}=A\text{exp}(\mathrm{j}{\vartheta}_{0})$, where $A=\frac{\widehat{A}}{\sqrt{2}}$ is the RMS value and ${\vartheta}_{0}$ is the initial phase. A phasor can also be represented graphically. Note 2 to entry: Electric current phasor $\underset{\_}{I}$ and voltage phasor $\underset{\_}{U}$ are often used. Note 3 to entry: The similar representation with the modulus equal to the amplitude is sometimes also called "phasor". | ||

Publication date: | 2017-07 | ||

Source | |||

Replaces: | 103-07-14:2009-12 | ||

Internal notes: | 2017-08-25: Corrected <mstyle displaystyle='true'> tag; missing quotation mark. LMO | ||

CO remarks: | |||

TC/SC remarks: | |||

VT remarks: | |||

Domain1: | |||

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Domain5: |

Note 1 to entry: For a quantity $a(t)=\widehat{A}\text{cos}(\omega \text{\hspace{0.05em}}t+{\vartheta}_{0})$ the phasor is $\underset{\_}{A}=A\text{exp}(\mathrm{j}{\vartheta}_{0})$, where $A=\frac{\widehat{A}}{\sqrt{2}}$ is the RMS value and ${\vartheta}_{0}$ is the initial phase. A phasor can also be represented graphically.

Note 2 to entry: Electric current phasor $\underset{\_}{I}$ and voltage phasor $\underset{\_}{U}$ are often used.

Note 3 to entry: The similar representation with the modulus equal to the amplitude is sometimes also called "phasor".