母线桥又称桥式接线，用跨接断路器BCD把两条电源引入线与两台变压器联系起来的主接线。较分段单母线接线简化，减少了断路器的数量。根据跨接桥断路器的位置不同，分为内接线桥和外接线桥。其中内接线桥适用于线路较长，负荷曲线比较平稳的变电位置；外接线桥则适用于线路较短，负荷曲线变化较大的变电位置。 母线桥刷漆的作用：绝缘、防腐、散热和“相”的标识。
如开关柜之间或进线柜需要母线桥连接，应提供母线桥的额定载流量，母线桥的跨度，距地高度等具体数据。
If using busbar bridge between switchgears or inlet wire cabinets, should provide rated current-carrying capacity, span and height from the ground of the busbar bridge.
根据涡流场计算结果并结合振动噪音分析，提出了改善母线桥工作噪音的措施，并对各项措施进行了数值模拟和实验研究。
After that, the improvement methods are proposed to reduce the noise, and the numerical simulations and experiments are performed to study every improvement method.
介绍了一种新型混合不对称九电平逆变器，它由一不对称五电平逆变器和一全桥逆变器级联而得，级联逆变器的直流母线电压相等。
It is proposed a novel hybrid asymmetric 9-level inverter in which an asymmetric 5-level inverter and an H-bridge inverter with equal dc bus voltage are series connected.
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