Selection of shor t circuit breaking capacity of low voltage circuit breaker

• 来源期刊: 中国电气工程学报（英文）
• 年，卷（期）: 2020,（2）
• 页码范围: 1-4
• 页数: 4页
• 语种: 英文

摘要

Low-voltage circuit breaker short-circuit breaking ability is to choose the key parameters of low-voltage circuit breaker, and short-circuit current is to choose the basis of low-voltage circuit breaker breaking ability, by changing the transformer impedance voltage value can change the short-circuit current. In this paper, the capability of selecting a reasonable short circuit section of a low voltage circuit breaker by changing the impedance voltage of the transformer is studied by an engineering example.