(Untitled) | (Untitled) | (Untitled) | (Untitled) | (Untitled) | Examples |

IEVref: | 131-12-51 | ID: | |

Language: | en | Status: Standard | |

Term: | admittance | ||

Synonym1: | complex admittance [Preferred] | ||

Synonym2: | |||

Synonym3: | |||

Symbol: | $\underset{\_}{Y}$ | ||

Definition: | for a passive linear two-terminal element of two-terminal circuit with terminals A and B under sinusoidal conditions, quotient of the phasor $\underset{\_}{I}$ representing the electric current in the element or circuit by the phasor $\underset{\_}{U}}_{\text{A}\text{B}$ representing the voltage (131-11-56) between the terminals $\underset{\_}{Y}=\frac{\underset{\_}{I}}{{\underset{\_}{U}}_{\text{A}\text{B}}}$ where the sinusoidal electric current represented by the phasor $\underset{\_}{I}$ is taken positive if its direction is from A to B or negative if its direction is from B to A and where the sinusoidal voltage $u}_{\mathrm{AB}}={v}_{\text{A}}-{v}_{\text{B}$ represented by the phasor $\underset{\_}{U}}_{\text{A}\text{B}$ is the difference of the electric potentials at terminals $v}_{\text{A}$ at A and $v}_{\text{A}$ at B Note 1 to entry: The admittance of an element or circuit is the inverse of its impedance. It is equal to $v}_{\text{B}$, where Note 2 to entry: The coherent SI unit of admittance is siemens, S. | ||

Publication date: | 2013-08 | ||

Source: | |||

Replaces: | |||

Internal notes: | 2017-06-02: Cleanup - Remove Attached Image 131-12-511.gif | ||

CO remarks: | |||

TC/SC remarks: | |||

VT remarks: | |||

Domain1: | |||

Domain2: | |||

Domain3: | |||

Domain4: | |||

Domain5: |

$\underset{\_}{Y}=\frac{\underset{\_}{I}}{{\underset{\_}{U}}_{\text{A}\text{B}}}$

where the sinusoidal electric current represented by the phasor $\underset{\_}{I}$ is taken positive if its direction is from A to B or negative if its direction is from B to A and where the sinusoidal voltage $u}_{\mathrm{AB}}={v}_{\text{A}}-{v}_{\text{B}$ represented by the phasor $\underset{\_}{U}}_{\text{A}\text{B}$ is the difference of the electric potentials at terminals $v}_{\text{A}$ at A and $v}_{\text{A}$ at B

Note 1 to entry: The admittance of an element or circuit is the inverse of its impedance. It is equal to $v}_{\text{B}$, where *G* is conductance for alternating current, *B* is susceptance, *Y* is apparent admittance, and *φ* is displacement angle.

Note 2 to entry: The coherent SI unit of admittance is siemens, S.