V2EX voltage swell

Voltage Swell

Definition / 定义

voltage swell电压暂升(也常译作“电压上升”)。指电力系统中电压在短时间内高于正常值的现象,通常持续时间从半个周波到数十秒/数分钟不等,可能由大负载突然切除、并联电容投入、故障清除后电压回升等原因引起。
(注:它不同于更瞬时、更尖峰的“voltage spike/瞬态尖峰”。)

Pronunciation / 发音

/voltd swl/

Examples / 例句

The computer restarted during a voltage swell.
电脑在一次电压暂升期间重启了。

After the large motor was switched off, a voltage swell affected several sensitive instruments in the lab.
大型电机断开后出现电压暂升,影响了实验室里几台敏感仪器。

Etymology / 词源

voltage 来自意大利科学家 Alessandro Volta(伏打) 的姓氏(单位“volt/伏特”亦由此而来),加上表示“状态/量”的后缀 -ageswell 源自古英语 swellan,意为“膨胀、升高”。组合成 voltage swell,在电能质量(power quality)领域专指“电压在短时间内变高”的现象。

h2>Related Words / 相关词

Literary Works / 文学作品

  • IEEE Std 1159(《Recommended Practice for Monitoring Electric Power Quality》)中对 voltage swell 等电能质量事件有经典定义与分类
  • IEC 61000-4-30(电能质量测量方法相关标准)涉及对电压变化事件(包括暂升)的测量与记录
  • Roger C. Dugan et al., Electrical Power Systems Quality(电力系统电能质量经典教材,讨论电压暂升的成因、影响与治理)
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