差动保护因TA的饱和造成保护误动，采用功率方向保护避免因TA饱和造成误动。
Differential protection's unwarranted trip is often caused by saturation of TA. Avoid it by directional power protection.
该方案包括了横差保护、故障分量负序功率方向保护和不完全纵差保护的综合应用。
The scheme includes the transverse differential protection, the directional relay action on negative sequence power of fault component and the incomplete differential protection.
提出了基于负序功率方向的并联电抗器匝间故障保护原理。
The paper proposes a novel shunt reactors turn-to-turn fault protection that is based on negative-sequence power direction theory.
分析了电抗器保护匝间短路灵敏度，提出了自适应补偿零序功率方向的方法。
Moreover, the sensitivity of turn-to-turn fault of shunt reactor protection was analyzed and a method of adaptive compensated zero sequence direction was presented.
该装置在总馈电开关处的漏电保护装置使用附加直流电源原理，在分支馈电开关处的漏电保护装置使用零序功率方向式保护原理。
This device use the principle of additional DC power supply in main feeding switch, and use the principle of direction of zero sequence power in branch feeding switch.
零序功率方向继电器是线路保护中的一个重要元件。
The zero sequence directional relay is an important relay component for transmission line.
零序功率方向继电器是线路保护中的一个重要元件。
The zero sequence directional relay is an important relay component for transmission line.
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