Can reliably determine, within the community and bounds detection ma level and zero-sequence current phase short circuit fault current, automatic removal of single-phase ground fault and phase fault.
能可靠判断、检测界内与界外毫安级零序电流及相间短路故障电流,实现自动切除单相接地故障和相间短路故障。
It shows that DVR will inject small zero sequence component into the power system during compensation control even if there is no zero sequence circuit. This will influence the voltage on system side.
分析表明,即使系统不存在零序回路,DVR都会在补偿控制中向系统注入微小的零序分量,该零序分量会对无零序回路系统侧电压造成不良影响。
Through analysis of this incident points out the main transformer space CT, CT secondary circuit zero sequence some problems, put forward for such improvements.
通过对本次事件分析,指出了主变间隙CT、零序CT二次回路存在的一些问题,针对此类问题提出了改进意见。
The latter makes use of zero sequence voltage detection, alarm and display circuit.
信号报警显示部分由零序电压检测、报警、显示等电路构成。
Based on the method of six sequence fault component, this paper analyses the performance of zero sequence directional relay on double circuit line on the same pole (DLSP).
文中用六序分量法分析了同杆双回线上零序功率方向继电器的性能。
This paper studies the influence of converter transformer D-bridge zero sequence circulating current on valve short circuit protection.
笔者研究了换流阀三角形侧零序环流对阀短路保护误动作的影响。
Also interference with telephone circuit is reduced because of the absence of zero-sequence currents.
由于无零序电流,对电话线路干扰的影响也降低。
Reasonable modification to zero-sequence voltage circuit and proper operation can minimize losses caused by faults of this kind, if it happens again.
合理地变更PT零序电压回路接线和正确的操作,对再发生此类事故可减小事故损失。
Reasonable modification to zero-sequence voltage circuit and proper operation can minimize losses caused by faults of this kind, if it happens again.
合理地变更PT零序电压回路接线和正确的操作,对再发生此类事故可减小事故损失。
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