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- optical current differential 光纤差动
- As for differential protection based on full current sampling, optical current transducer (OCT) possesses unmatchable advantages. 在基于全电流的采样值差动保护中,光学电流互感器具有无可比拟的优点。
- Which cause the maloperation of current differential protection. 谐波含量高,造成电流波形畸变,并最终导致了变压器差动保护的误动。
- optical fiber current differential protection 光纤电流差动保护
- One of the protection elements involved in LASP system uses the current differential relaying as a basic application of Kirchhoff’s current law. 应用基尔霍夫定律原理制造的电流差动继电器,这个保护元件被引入到LASP系统。
- The performance of passive Optical Current Transformer (OCT) with the linear birefringence is analyzed based on Jones matrix. 摘要针对无源光学电流互感器的线性双折射问题,用琼斯矩阵分析了双折射对系统输出的影响。
- Then the nodal equations based on the nodal current differential (equilibrium) relationship are obtained according to KCL. 根据基尔霍夫电流定律;建立了基于节点电流微分平衡关系的节点方程.
- The current transmission error of CT saturation is one of the main factors of current differential protection maloperation. 电流差动保护中区外故障时电流互感器饱和而造成的电流传变误差,是引起电流差动保护误动的一个重要因素。
- This paper summarized and analyzes the cases in trial service for optical current transformer( OCT) and introduces the new technical development of OCT in China and abroad. 本文总结和分析了光电式电流互感器试运行的情况,并介绍了国内外这种互感器的研究现状。
- Module components based current differential relay can eliminate the adverse effect of the distributed capacitive current. 利用模分量构成的模分量差动保护能够从根本上消除分布电容电流的不利影响。
- A novel optical current sensor to detect 50 Hz high alternating current is designed based on fiber and MEMS. The principle and design of the sensor is explained. 将光纤与微电子机械系统(MEMS)技术相结合,设计了一种新颖的检测50Hz高压交流电的光学电流传感器(OCS)。
- Liu Ye, Wang Caitang, SuYanminetal.Birefringent effect of three phase optical current transducer system[J].Journal of Xi'an Jiaotong University, 2003, 34(2): 24-27. [7]刘晔;王采堂;苏彦民;等.;三相光学电流互感器的双折射效应研究[J]
- The principle of phase discrepancy compensation of the tetragonal OCT (Optic Current Transducer) sensor head with dual layer optic circuit is analysed as well as its existing proplem. 分析了四角形双层光路光学电流互感器(OCT)传感头的位相差补偿原理及其存在的问题,进而提出了一种结构更为简洁,性能更加优越的光学电流互感器传感头方案;
- Therefore, if you are using differential backups with a read-only database, after you reattach the database, you should establish a current differential base by taking a full backup. 因此,如果对只读数据库使用差异备份,在重新附加数据库后,应通过进行完整备份来建立当前差异基准。
- After analyzing the reasons and characteristics of com m unication data error of current differential protection relay18.acom m unication error correcting m ethod is given to accelerate tripping of relay. 分析了通信过程中数据出错的原因和特点,然后给出了根据汉明码纠错原理推出的纵差保护数据通信的纠错方法,借以提高保护的动作速度。
- Elliptical degeneration of output light of optical current transformer is caused by linear birefringence and refection-induced retardance,which results in reduction of sensitivity. 线性双折射和反射相移使光学电流互感器输出光偏振态产生椭圆退化并导致灵敏度降低,法拉第镜式光学电流互感器可以有效解决椭圆退化问题。
- YUAN Rong-xiang,CHEN De-shu,MA Tian-hao,etal.Study on the principle of current differential protection based on sampled values[J].Electric Power Automation Equipment, 2000,20 ( 1 ): 1 - 3. [3]袁荣湘;陈德树;马天皓;等.;采样值电流差动保护原理的研究[J]
- This paper proposes a novel principle of segregated phase current differential protection in UHV long distance transmission line with shunt reactor installed in the middle segment. 提出了在特高压长线路中间带并联电抗器时的线路分相电流差动保护原理。
- Optical fiber electric current differential motion protection 光纤电流差动保护
- Sagnac fiber optic current sensor 萨尼亚克电流光纤传感器