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本文详细介绍了一种用于发电厂及变电站直流系统的测量与监察新型装置的设计方案，它能及时地发现直流的接地和绝缘下降等情况，并能求出绝缘阻值，找出故障支路。它的出现提高了传统依次拉闸查找法的可靠性，降低了事故率，实现了高精度测量的自动化。
In this paper, a new design of a new type of device for measuring and monitoring DC systems in power plants and substations is introduced in detail. It can detect DC ground and insulation degradation in time, find out the insulation resistance and find the faulty branch road. Its emergence improves the reliability of the conventional turn-on search method, reduces the accident rate and realizes the automation of high-precision measurement.