The configuration and principle of protective functions, such as directional pilot protection and distance protection, are introduced.
介绍了方向纵联保护、距离保护等一些新的保护功能配置及原理。
To eliminate the influence of distributed capacitance on negative sequence directional pilot protection, the authors propose a Bergeron model based accurate compensation algorithm.
为消除特高压输电线路中分布电容对负序方向纵联保护的影响，文章提出一种基于贝瑞隆模型的精确补偿算法。
While multiple faults occur in complex power system, the pilot protections could correctly operate or not, and incorrect operation of the pilot protection is harmful to the power system.
复杂电力系统发生复故障时，方向高频保护可能正确动作也可能不正确动作，而继电保护的不正确动作将直接危害电力系统的安全稳定运行。
Our comprehensive environmental protection efforts have achieved initial success and a series of pilot projects on circular economy are making steady progress.
环境综合治理初见成效，一批循环经济试点积极推进。
In addition, the Shanghai Municipal Environmental Protection Bureau and Pudong New Area are actively pursuing ISO14000 series standard, and the Jinqiao Development Zone, identified as the pilot unit.
另外，上海市环保局和浦东新区也在积极推行ISO 14000系列标准，并将金桥开发区确定为试点单位。
It compares the pilot distance protection with power line carrier (PLC) in the single or double frequency and the differential protection with optical fiber in the loop or chain connection.
比较单频率与双频率载波通道的纵联距离保护和环状与链状连接光纤通道的差动保护方案。
Each 500 kV transmission line will be protected by two primary pilot relaying systems with a backup relaying to achieve primary and secondary protection.
由两个主控制继电保护系统对各条500千伏传输线进行保护，该控制继电保护系统上装有一只后备继电器，以实现初级保护与二次保护。
Different conditions causing the sensitivity deficiency of pilot zero-sequence directional protection are analyzed and the necessity of adopting zero-sequence voltage compensation is discussed.
讨论了纵联零序方向保护因为零序电压灵敏度不足而失效的各种情况，探讨了采用零序电压补偿措施的必要性。
Power pilot light and fuse safety protection.
电源指示灯及保险丝安全装置。
Power pilot light and fuse safety protection.
电源指示灯及保险丝安全装置。
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