1) temporary over-voltage
暂时过电压
1.
Because corresponding temporary over-voltage level is not taken as the design basis for insulation coordination of converter station, it is necessary to check the temporary over-voltage level under this condition and then to decide whether the temporar.
我国常规直流工程的换流站交流母线广泛采用3/2断路器接线方式,运行期间可能会出现交流母线一条检修、另一条运行的状态,而对应的暂时过电压水平未作为换流站绝缘配合的设计依据,因此有必要对其进行校核,进而确定换流站无功大组所在间隔的暂时过电压水平是否会超过设备的耐受能力以及对应的限制措施。
2) transient over-voltage
暂态过电压
1.
For the large generator stricken by the operational over-voltage in power stations,a field-circuit analysis method of transient over-voltage is presented to study the transient over-voltage field-circuit model of large generator.
针对在厂站操作过电压冲击下的大型发电机,建立一种暂态过电压的场路分析方法,研究大型发电机的暂态过电压场路分析模型。
2.
Based on that,the power system of Yangtze River Delta region was used as an equivalent typical multi-infeed HVDC model,and the traditional SCR/ESCR,multi-infeed SCR/ESCR,the multi-infeed interaction factor,and the transient over-voltage were calculated.
对长三角多馈入直流输电系统进行等值,计算了各直流系统的传统短路比/有效短路比、多馈入短路比/有效短路比、多馈入相互作用因子,以及工频暂态过电压,并对淮南—上海特高压交流线路投产的影响进行了敏感性分析。
3) transient overvoltage
暂态过电压
1.
It will generate the transient overvoltage when the inductive or capacitive load is severed by the vacuum breaker,the reason is introduced in this paper;and methods about suppressing this overvoltage is discussed.
通过分析研究高压真空断路器在切断感性载和容性负载时产生暂态过电压的原因,探讨了抑制过电压的具体措施。
2.
It is concerned what corona will do on the transient overvoltage between contacts of switch.
基于线路的库-伏特性,并用简单的电路模型来模拟输电线路电晕特性,研究了进线开关在额定电压为600kV的MOA保护下触头间暂态过电压。
3.
The occurrence rate of transient overvoltages, the test requirements of electromagnetic compatibility and insulation coordination specified in IEC standards are presented in this paper.
本文针对电子设备中普遍存在暂态过电压这一事实 ,介绍了暂态过电压的发生率和IEC标准中对低压设备做雷电浪涌抗扰性试验的电磁兼容和绝缘配合的要求 ,并给出了一种用于这种试验的电路原理图及方
4) very fast transient over-voltage(VFTO)
快速暂态过电压
1.
This paper presents the analysis of very fast transient over-voltage(VFTO) in GIS generated by disconnected switch operation.
阐述了气体绝缘开关装置(GIS)中隔离开关操作所产生的特快速瞬变过程(VFT),分析了快速暂态过电压(VFTO)形成的机理、特性及其对GIS本身和相连的电力变压器可能带来的危害。
5) turn-off transient voltage
关断暂态过电压
6) VFTO
快速暂态过电压
1.
Influence of Opening and Closing Resistor of Disconnecting Switches to VFTO in 750kV GIS;
750kV GIS中隔离开关的分合闸电阻对快速暂态过电压的影响
2.
Insulation failure inside or outside GIS can be caused by very fast transient overvoltage (VFTO) generated during operating disconnectors in GIS.
SF6气体绝缘开关装置 (GIS)中的隔离开关在操作时产生的快速暂态过电压 (VFTO) ,会造成 GIS的绝缘击穿事故。
补充资料:电力系统暂时过电压
电力系统暂时过电压
temporary overvoltage in electric power system
d旧nl一x一tong zonsh一guodlonyo电j7系统哲时过电压(temporary overvoltagein electrie power system)在电力系统中由于故障或操作引起的过渡过程之后的一段时间内出现的德态性质的过电压.“暂时”一词的含义,是指这类过电压只是短时产生,或者不允许持久存在,因而总体上具有暂时性质。电力系统暂时过电压分为电力系统工奴过电压和电力系统谙振过电压两种。空载线路中的电容效应是产生工频过电压的主要原因,在超高压长线路中尤为突出,需要采取并联电杭器等补偿措施加以限制。谐振过电压主要发生在由铁芯励磁电感或同步电机的时变电感及其端部电容所组成申联振荡回路中,最高幅值可达相电压的两倍以上,对电气设备的绝缘造成威胁,需要针对具体情况采取专门措施加以消除或者限制它们的存在时间。
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