V2EX no-load

No-load

释义 Definition

no-load(形容词/名词)空载的;无负载的;空载状态。常用于电机、变压器、电源、发电机等场景,指设备运行时没有连接外部负载(或输出端几乎不取电流/不做功)。也可引申为“在无任务压力/无工作量的情况下”(较少见)。

发音 Pronunciation (IPA)

/no lod/

例句 Examples

The motor draws very little current at no-load.
电机在空载时电流很小。

No-load tests help engineers estimate efficiency and core losses before the machine is put into service.
空载测试能帮助工程师在设备投入使用前估算效率以及铁耗等损耗。

词源 Etymology

no(没有)+ load(负载)构成的复合词。load 在工程语境中指“外部负载/负荷”(如电路的用电器、机械轴上的阻力或系统承受的功率需求)。因此 no-load 字面即“没有负载”,逐渐固定为电气与机械工程中的常用术语。

相关词 Related Words

文学与作品 Literary Works

  • The Art of Electronics(Horowitz & Hill)在电源与电路测量语境中常出现 no-load(如空载电压/空载条件)。
  • Electric Machinery Fundamentals(Stephen J. Chapman)讨论电机与变压器测试时常用 no-load test(空载试验) 等表达。
  • IEC/IEEE 工程标准与应用手册(如电机/变压器测试相关文件)频繁使用 no-load 描述空载损耗、空载电流、空载转速等指标。
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