2) zero-sequence directional protection
零序方向保护
1.
The characteristics of the zero-sequence voltage,zero-sequence current and zero-sequence power during a single-phase earth fault in a solidly earthed neutral system are expounded;the principles of conventional zero-sequence directional protection and microcomputer based zero-sequence directional protection are compared and analyzed.
阐述了中性点直接接地系统单相接地短路时零序电压、零序电流、零序功率的特点,对常规零序方向保护和微机型零序方向保护的原理进行了对比分析,指出LG-12型功率方向继电器以及WXH-11型、CSL-160型零序方向保护中零序功率方向的正确接线方式。
3) negative sequence directional protection
负序方向保护
4) partially preserving orientation
局部方向保序
1.
Regularity and Green's relation for semigroups of transformations partially preserving orientation in T_E(X)
T_E(X)中局部方向保序变换半群的Green关系和正则性
5) zero-sequence(negative-sequence) direction protection
零序(负序)方向保护
6) same directional negative sequence relay
同序负序方向纵联保护
补充资料：方向
①指东、南、西、北等：在山里迷失了～。②正对的位置；前进的目标：军队朝渡口的～行进。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条