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jiao liu jie chu qi xuan yong zhu yi shi xiang
Pages: 54
Year: Issue:  8
Journal: Machinery & Electronic Products Market

Abstract: <正> 1.接触器的串并联使用有许多用电设备是单相负载,因此,可将多极接触器的几个极并联使用。如电阻炉、电焊变压器等。当用几个极并联起来使用时,可以选用较小容量的接触器。但必须注意,并联后接触器的约定发热电流并不完全与并联的极数成正比。这是由于积极动、静触头回路的电阻值不一定完全相等,以
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