For impressed current protective system, its technological advances in design and installation are given.
对于外加电流保护系统，介绍了其设计、安装等方面的技术进展。
Selection of ground current, comparison of isolation level and consideration of protective device in the resistance ground system are presented.
介绍了电阻接地系统中，接地电流的选取，绝缘水平比较，保护配置方面的考虑。
The phase comparison error is the primary factor leading to mistaken action in the selective leakage protective system of underground LV networks based on zero sequence current direction.
在基于零序电流方向原理的矿井低压电网选择性漏电保护中，比相误差是导致保护误动的主要因素。
Differential relay a differential relay is a protective device that is fed by current transformers located at two different series points in the electrical system.
差动继电器作为保护装置，差动继电器由位于系统中两个不同位置的电流互感器提供反馈信息。
This paper introduces the logical control protective and monitor system of the lower hybrid current drive (LHCD) high-voltage power supply based on PLC and PROFIBUS.
本文介绍了基于PLC与现场总线的低混杂波高压电源逻辑控制保护监控系统。
A differential relay is a protective device that is fed by current transformers located at two different series points in the electrical system.
差动继电器作为保护装置，差动继电器由位于系统中两个不同位置的电流互感器提供反馈信息。
Selection of ground current, comparison of isolation level and consideration of protective device in the resistance ground system are pr…
介绍了电阻接地系统中，接地电流的选取，绝缘水平比较，保护配置方面的考虑。
It was also pointed out that, under current social and economic condition, establishing protective farming system is an economical way to control water and soil loss in slope cultivated land.
认为在目前的社会经济条件下，建立保护性种制度是减轻坡耕地水土流失最为经济有效的途径。
It was also pointed out that, under current social and economic condition, establishing protective farming system is an economical way to control water and soil loss in slope cultivated land.
认为在目前的社会经济条件下，建立保护性种制度是减轻坡耕地水土流失最为经济有效的途径。
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