The single line-to-ground (SLG) faults in low ground current system may have many features.
小电流接地系统单相接地时有许多特点。
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 ground connection of the light current system, mainly working grounding, aims to prevent electromagnetic noise and assures the equipment to work steadily and reliably.
弱电系统的接地以工作接地为主,目的是为了防止电磁干扰,保证弱电系统中设备稳定、可靠工作。
Precisely measuring and tracing is a precondition and basis of arc-suppression coil with automatic tuning accurately compensating system capacitive current and efficiently quenching ground arc.
精确的测量和跟踪是自动调谐式消弧线圈精确地补偿系统电容电流、有效地熄灭接地点电弧的前提和基础。
User is able to set the ground fault trip current of the relay just milliamps above the highest level, to accurately measure the system charging.
使用者可将继电器接地故障跳闸电流设置为高于最高值几毫安,以准确测量系统充电。
More and more researchers focus on how to measure the capacitance current to the ground of the distribution network system precisely and swiftly.
随着电缆在配电网中的大量应用,系统电容电流水平不断提高,准确便捷地测量配电网系统对地电容电流成为研究领域的热点。
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。
The arc suppression coil with three phases and five columns can achieve automatic trace and compensation for ground fault capacitive current of power system by the method of rectifying i.
介绍了三相五柱式消弧线圈及其自动跟踪补偿原理,该消弧线圈在结构上突破了传统消弧线圈的模式,将传统的接地变压器和消弧线圈有机地结合成一个整体。
The zero-sequence current protection is an important means of power system ground protection.
零序电流保护是一种重要的接地保护方法。
Combined with the research status of single-phase-to-ground fault locating for small current grounding system, a new idea based on non-fault-phase transient current is presented.
针对小电流接地系统单相接地故障定位的研究现状,提出基于非故障相暂态电流的单相接地故障定位的思想。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型,用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
Orienting to grid arc suppressing coil on-line running system, this paper proposed a simple reliable tracking calculation method for capacitive current against ground.
本次研究在开发超大容量消弧线圈的同时,达到了随调、精细调节、高可靠性的要求。
Orienting to grid arc suppressing coil on-line running system, this paper proposed a simple reliable tracking calculation method for capacitive current against ground.
本次研究在开发超大容量消弧线圈的同时,达到了随调、精细调节、高可靠性的要求。
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