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动力回路保护开关的选择
引用本文:程俊恒,胡忠魁,陈利恒.动力回路保护开关的选择[J].电气技术,2011(3):57-59.
作者姓名:程俊恒  胡忠魁  陈利恒
作者单位:程俊恒,胡忠魁,Cheng Junheng,Hu Zhongkui(匠人规划建筑设计股份有限公司,郑州,450003);陈利恒,Chen Liheng(河南四方建设管理有限公司,河南,漯河,462000)
摘    要:某住宅小区的消火栓泵距离变电所较远,功率较大,通过计算全压起动时变电所母线电压及电动机端子电压,并结合笼型电动机的特点,决定采用全压起动.并分析了全压起动与降压起动两种不同的起动方式对干线保护开关选择的影响.

关 键 词:全压起动  降压起动  灵敏度

Discussion on the Selection of Protection Breaker of Power Circuit Line
Cheng Junheng,Hu Zhongkui,Chen Liheng.Discussion on the Selection of Protection Breaker of Power Circuit Line[J].Electrical Engineering,2011(3):57-59.
Authors:Cheng Junheng  Hu Zhongkui  Chen Liheng
Affiliation:Cheng Junheng1 Hu Zhongkui1 Chen Liheng2 (1.Giant Urban Planning & Architecture Design Co.,Ltd,Zhengzhou 450003) 2.Henan Quartet Construction Management Co.,Luohe,Henan 462000)
Abstract:The fire hydrant pump in a subway section is farther away from the substation and its power is big .Through calculating the substation bus voltage and motor terminal voltage, combined with cage motor characteristics, it is determined to adopt full voltage to start. It analyzes the effect of motor starting method on the breaker of line protection.
Keywords:full voltage start  step voltage start  sensitivity  
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