| 空调机组冷却水泵星三角起动时断路器跳闸故障分析 |
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| 引用本文： | 李雪梅,刘瑞敏.空调机组冷却水泵星三角起动时断路器跳闸故障分析[J].低压电器,2013(7):50-52. |
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| 作者姓名： | 李雪梅 刘瑞敏 |
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| 作者单位： | 施耐德电气(中国)有限公司上海分公司,上海,200062 |
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| 摘 要： | 通过实际案例分析了空调机组冷却水泵星三角起动时断路器跳闸故障原因,提供了两种解决方法。明确了星三角、软起动器、变频器3种方式的适用场合。指出目前空调水系统中大功率水泵更适用软起动器。
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| 关 键 词： | 断路器 跳闸 力矩 堵转 冲击电流 星三角转换 带载起动 |
Fault Analysis of a Star-Delta Starting Water Pump in Air-Conditioning System |
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| Affiliation: | LI Xuemei ( Schneider Electric (China) Co. , Ltd. , Shanghai Branch, Shanghai 200062, China) |
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| Abstract: | This paper analyzed the circuit breaker trip fault reasons whan star-delta pump starting and gave two methods to solve the problem. Making clear the applicability of three pump starting mode （Varied Speed Drive, VSD）, soft start and star-delta starting mode. And the paper pointed out that soft start is better for big power water pump in air-conditioning system. |
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| Keywords: | circuit breaker trip torque stalling impact current star-delta transfer load-starting |
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