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- In Perterson coil system, it can be decreased that the capacitor current through fault point and the over-voltage caused by the grounding fault, which is advantage for the extinguishments of electric arc. 中性点经消弧线圈接地后,有效减小了流过故障点的电容电流,减小了弧光接地过电压,有利于电弧熄灭。
- Fault current and discharging current of capacitor would give more current strength to the thyristor.The transient temperature changed by the current strength is analyzed through Cauer model. 故障电流和电容器放电电流叠加使晶闸管阀体承受巨大的电流应力,建立晶闸管阀热阻抗模型,分析了暂态温升变化。
- After the neutral point is grounded through Peterson coil, it can decrease the capacitor current through fault point and the over-voltage caused by the grounding fault, which is advantage for the extinguishments of electric arc. 中性点经消弧线圈接地后,有效地减小了流过故障点的电容电流,减小了弧光接地过电压,有利于电弧熄灭。
- A system in which one or more neutral points are connected to earth through reactance which approximately compensate the capacitive component of a single-phase-to-earth fault current. 一个或多个中性点通过具有感抗的器件接地系统。这些器件在单相对短路时能大体上补偿线路的容性效应。
- Moreover,it is the basis of constructing a new non communication protection through absolutely utilizing the fault information which is comprised in transient component of fault current or voltage. 高压输电线路发生故障后的暂态电压或电流分量中包含比工频分量更多的故障信息,充分利用这一信息是构成具有绝对选择性单端无通信保护的前提。
- A system whose neutral point(s) is (are) earthed through impedances to limit earth fault currents. 系统中至少有一个中性点通过具有阻抗的器件接地以限制接地故障短路电流系统。
- SHJ-IV fault indicator installed on the wire, used to direct the flow of fault current devices. IV故障指示器安装在电线上,用于指示故障电流流通的装置。
- Aimed at the shortcomings of coalface passing through fault as low speed, low efficiency and low-quality coal and so on, a new technique was suggested. 摘要针对采煤工作面过断层速度慢、效率低且影响煤质等缺点,提出工作面快速无矸石过断层清洁开采技术。
- By reason of its high reliability, the resonant-type fault current limiter is suitable for EHV power network. 谐振型限流器具有高可靠性等优点,适用于超高压电网。
- A type for AC fault currents and pulsating DC fault currents. 用于交流和直流脉动故障电流。
- Combined with engineering cases, the mechanism of inrush through fault which is water-inconductive in initial geological condition, has been studied. 结合工程实例分析了原始地质条件下的不导水断层在采动影响下透水并最终导致突水事故发生的作用机理。
- Abstract:A control system of the initial fault current angle in shortcircuit test is proposed. 摘要:介绍了一种用于短路试验的合闸角控制系统设计方案。
- When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card. 在将信号源连接至开关卡时,请安装保护装置,限制传输至开关卡的故障电流和电压。
- In this paper, SSMES with fault current limiting function for substation applications is proposed. 文中研究了应用于变电站的具有故障限流功能的SSMES。
- For the distributed capacitance of the network is the main cause of the fault current, it can be compensated and reduced by installing arc suppression coil(ASC). 电网对地分布电容的存在是接地点产生故障电流的主要原因,在电网的中性点与大地之间加装消弧线圈,可使容性电流得到补偿,从而使接地点的电流减小。
- Resistive high temperature superconducting fault current limiters (HTSFCL) utilize S-N transition of superconductor to limit the short-circuit current. 电阻型高温超导限流器(HTSFCL)利用超导体的超导态-正常态转变来限制短路电流,无需短路故障检测电路,具有体积小、重量轻的优点。
- The resonance fault current limiter (RFCL) is a practical way to solve the problem of the bulk fault current on the EHV. 谐振型限流器的电容器因故障电流引起过电压,传统过电压保护技术不适合限流器的系统工况。
- To evaluate the performance of the superconducting fault current limiter(SFCL),the PSCAD analysis has been executed on a... 通过PSCAD软件对超导故障限流器的运行特性进行仿真分析,证明超导故障限流器在电力系统中应用的意义与前景。
- They cleaved a path through the wilderness. 他们在荒原中开辟出一条路。
- I was paging through a magazine when he came in. 他进来时我在翻阅一本杂志。