Periodically measure insulation resistance, inspect motor sheath grounding.
定期测量绝缘电阻，检查机壳接地情况。
The principle, main design point and no load voltage ratio calculation method of resin insulation dry-type grounding transformer are introduced.
介绍了树脂绝缘干式接地变压器的工作原理、设计要点及空载电压比的计算方法。
The method of grounding the neutrals of the transformers affects the degree of protection that can be given them and the amount of insulation they need.
变压器中性点的接地方式会影响到变压器被保护的程度以及变压器所需的绝缘量。
The optimal protection for bearing current was reached by the insulation of both ends of bearing and grounding of carbon brush of motor shaft.
电机双端轴承绝缘并且电机轴碳刷接地，可构成对轴承电流的最佳防护。
This article introduces grounding and insulation conditions of screen door system along Line 1 in Shanghai Metro.
本文介绍了上海地铁1号线屏蔽门系统接地与绝缘情况，分析了地铁屏蔽门系统接地绝缘的原因。
The insulation methods of several DC systems are compared and analysed. A ping-pang variable bridge measurement is adopted. The ex - act on line detection of grounding resistance is realized.
比较分析了几种直流系统常用的绝缘检测方法，采用乒乓式变电桥测量法，实现了接地电阻的准确在线测量。
Four, grounding power supply, the cabinet must be ground, check line insulation situation, and then after the test run.
接地电源，机壳必须接地线，检查线路绝缘情况后，方可试运转。
The optimal protection for bearing current was reached by the insulation of both ends of bearing and grounding of carbon brush of motor shaf…
电机双端轴承绝缘并且电机轴碳刷接地，可构成对轴承电流的最佳防护。
The lightning protection could be improved by means of decreasing grounding resistance of tower, installing line type surge arrester and side lightning rod as well as increasing the insulation level.
采取杆塔降阻、装设线路避雷器、侧向避雷针和加强绝缘等多种措施后，防雷保护效果较好。
The lightning protection could be improved by means of decreasing grounding resistance of tower, installing line type surge arrester and side lightning rod as well as increasing the insulation level.
采取杆塔降阻、装设线路避雷器、侧向避雷针和加强绝缘等多种措施后，防雷保护效果较好。
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