A bus bar voltage dip during motor starting, shall not exceed 10%.
电动机起动时的母线电压降不得超过10%。
When the variation of bus-bar voltage and frequency occurs, the reliability of electric motors, transformers, control and protection system is analyzed in this thesis.
当电网电压和频率的变化时，分析了电动机、变压器、控制及保护系统、照明系统、通信导航设备等受电器工作的可靠性。
In practical projects, while an asynchronous motor starting, the drop of voltage on the bus bar must be within the limits which is stipulated by the national standard.
在工程实际中，电动机起动时引起的母线电压下降不能超过规定值。
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