计算机接地技术的研究

本文通过理论分析和实验验证，找到了影响ＶＡＸ８３００计算机运行不稳定、网络起动缓慢的主要因素（交流电源中线上不平衡电流的影响、空载地场之间干扰电压的影响、电力变压器中性点电位浮动的影响等）；针对这些影响，使用新的接地方法和技术，设计、安装三组低阻值的接地装置，并将ＶＡＸ８３００计算机有关部位合理接地，从而使该机达到良好的运行状态．这一技术还能广泛用于程控电话交换机、机场、电站（厂）及高层建筑物的工作和防雷接地．

Research on Grounding Technique for Computers

Based on the theoretical analysis and experimental verification,the authors have found out the main reasons which cause unstable operation of the VAX8300 computer and slow starting of the net work,namely:the unbalanced current in the AC power neutral line;the disturbing voltage of the unloaded earth-fields;the fluctuating potential at the neutral point of the power transformer and so on.To eliminate these influences,the new technique was used and three earth-units with small resistance were designed and installed.The related parts of the VAX8300 computer are connected with earth properly,so that the good operation state of the computer has been achieved.The technique is also available to the program-controlled telephone exchanger,airport,power-station and high buildings for grounding.