V2EX susceptance

Susceptance

释义 Definition

Susceptance(电纳):交流电路中导纳(admittance)的虚部,表示电路对交流电的“容性/感性导通能力”。单位为西门子(S)。在理想情况下:

  • 纯电容的电纳虚部为正(+B)
  • 纯电感的电纳虚部为负(B)
    注:该词主要用于电路与电力系统分析等技术语境。

发音 Pronunciation (IPA)

/ssptns/

例句 Examples

The capacitor increases the circuit’s susceptance at high frequencies.
电容会在高频时提高电路的电纳(虚部)。

In AC power-flow studies, engineers model shunt elements by their conductance and susceptance to estimate reactive power and voltage stability.
在交流潮流计算中,工程师用并联元件的电导和电纳来估算无功功率与电压稳定性。

词源 Etymology

susceptance由 **suscept-**(“易受……影响、可接受”,源自拉丁语 suscipere “接受、承受”)+ -ance(名词后缀)构成。它是为电工学专门造的术语,用来对应导纳的虚部,表达“对交流(尤其与无功相关的部分)的可接受/响应程度”。

相关词 Related Words

文学与著作 Literary Works

  • Engineering Circuit Analysis(电路分析教材中常用于导纳分解:电导与电纳)
  • Power System Analysis(电力系统分析中用于线路/并联支路建模与潮流计算)
  • Network Analysis(网络分析相关著作中用于复导纳表示与频域计算)
  • IEC/IEEE 交流电路与电力系统相关技术文献与标准条文(用于导纳参数与无功建模表述)
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