V2EX trip curve

Trip Curve

释义 Definition

(电气/保护装置)脱扣曲线、跳闸曲线:描述断路器、热继电器或电子保护器在不同电流(或故障条件)下动作(跳闸)所需时间的关系曲线,常见为“时间-电流特性曲线”(time-current characteristic)。

发音 Pronunciation

/trp kv/

例句 Examples

The trip curve shows when the breaker will shut off.
脱扣曲线显示断路器会在什么条件下断开。

Engineers compared the trip curves to ensure the upstream breaker trips later than the downstream one for proper coordination.
工程师对比脱扣曲线,以确保上级断路器比下级断路器更晚跳闸,从而实现正确的保护配合。

词源 Etymology

trip 原义与“绊倒/触发”相关,后来在电气语境中引申为“使保护装置动作、使断路器跳闸(to trip a breaker)”。curve 来自拉丁语 curvus(弯的),表示“曲线”。合在一起,trip curve 就是“跳闸特性所形成的曲线”。

相关词 Related Words

文献与作品 Literary Works

  • IEC 60947-2(低压开关设备和控制设备断路器;常用“time-current/trip curve”讨论额定与脱扣特性)
  • IEEE Std 242(“Buff Book”,工业与商业电力系统保护与协调;经常使用“trip curves”进行保护配合分析)
  • NFPA 70 (NEC) Handbook(在选择性配合与过电流保护的说明中常提及断路器的时间-电流/脱扣曲线)
  • 电气保护教材与手册,如 Power System Protection and Switchgear 等(用于讲解过电流保护特性曲线与整定)
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