限流电抗器

For confirming the method's efficiency, the turn-off transient mathematical model based on the chopper circuit is developed according to the proposed mathematic model of the turn-off transient current through IGCT, in which the RC-snubbers of IGCT, the stray inductance of chopper circuit and DC-link choke are taken into accounts.

该文建立基于斩波电路的IGCT关断暂态特性的数学模型。该模型充分考虑IGCT阻容吸收回路、线路杂散电感及限流电抗器对IGCT关断暂态过电压的影响。

It is recommended that check of line overvoltage should be done before CLI is installed in transmission line.

建议在安装限流电抗器之前，对线路工频过电压进行校核，以保证运行安全。

When compensating devices are switched by vacuum switches, if they are switched on group, the inrush current can be controlled by inserting suitable current-restrained reactance in-series. Since the restriking overvoltage is pertinent to the capacity of compensating devices and the time of restriking and igniting, the overvoltage can be restrained by arresters with asterism connection at the entrance of the capacitors. Although switching capacitance devices will bring up high interception cross overvoltage, the metal-oxide arrester can limit this overvoltage in the system designed in the thesis, and naturally the compensating devices can operate normally.

使用真空开关投切并联无功补偿装置，在分组投入并联电容器时，串联合适的限流电抗，合闸涌流可以得到控制；重燃时的过电压值与并补装置补偿容量，重燃发生时刻和燃弧时间有关，电容器进线端的三星接法避雷器可以抑制其过电压；切并联电抗器时会产生较高的截流过电压，金属氧化物避雷器可以使本文中所建系统的截流过电压得到限制，并联无功补偿装置可以正常切合。

He TVS based FCL is mainly composed of a capacitor, a current-limiting reactor connected with the capacitor in series and a TVS connected with the capacitor in parallel.

FCL主要由限流电抗器和与之串联的电容器组组成。

Unlike reactors,the Superconducting Fault Current Limiters without impedance or voltage drop during normal operation,can limit the short circuit current to a lower level,so that the underrated switchgears can be operated safely.

叶林超导故障限流器与常规限流电抗器不同的是：它不但可以限制短路电流，使得轻型断路器可以正常动作，而且在电网正常运行时不呈现任何阻抗和电压降。

ABSTRACT: Unlike reactors,the Superconducting Fault Current Limiters without impedance or voltage drop during normal operation,can limit the short circuit current to a lower level,so that the underrated switchgears can be operated safely.

超导故障限流器与常规限流电抗器不同的是：它不但可以限制短路电流，使得轻型断路器可以正常动作，而且在电网正常运行时不呈现任何阻抗和电压降。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。