2) single-phase adaptive reclosure
单相自适应重合闸
1.
A new scheme used in single-phase adaptive reclosure is proposed.
提出一种单相自适应重合闸的新方案。
2.
ATP simulation results show that the proposed scheme can reliably and effectively distinguish permanent fault from transient fault,and apply to the single-phase adaptive reclosure in transmission lines with shunt reactors.
在分析带并联电抗器输电线路单相故障特点的基础之上,提出一种利用参数识别原理的单相自适应重合闸永久性故障识别方法。
3) single-pole adaptive reclosure
单相自适应重合闸
1.
Based on wavelet energy spectrum analysis,the authors propose a single-pole adaptive reclosure scheme for transmission lines.
提出一种基于小波谱能量分析的输电线路单相自适应重合闸方案。
2.
The single-pole adaptive reclosure technical can identify the fault nature before reclosing is implemented.
单相自适应重合闸技术能在故障后识别故障性质,避免永久性故障下重合给电力系统及电力设备带来又一次严重的冲击,其关键是在重合闸前准确识别故障性质。
4) adaptive single-phase reclosing
自适应单相重合闸
1.
The adaptive single-phase reclosing scheme based on intelligent control is presented in order to overcome the problems of the adaptive single-phase reclosing in distinguishing the instantaneous faults from permanent ones.
利用EMTP及MATLAB进行大量的仿真试验 ,验证了其可行性 ,克服了自适应单相重合闸的电压判据在判别瞬时性故障与永久性故障时存在的缺陷。
5) single-phase auto-reclosure
单相自动重合闸
1.
For transmission lines with two shunt reactors,this paper presents a novel method of identifying permanent faults for single-phase auto-reclosure.
提出一种适用于两端带并联电抗器的超高压输电线路的单相自动重合闸永久故障识别方法。
6) single-phase autoreclosure
单相自动重合闸
1.
A novel method which uses the fault phase current characters of shunt reactors to identify permanent faults for single-phase autoreclosure on transmission lines is presented in this paper.
提出了一种基于超高压输电线路并联电抗器故障相电流特性的单相自动重合闸永久故障识别方法。
补充资料:自动重合闸
自动重合闸 auto-reclosing 广泛应用于输电和供电线路上的有效反事故措施。即当线路出现故障,继电保护使断路器跳闸后,自动重合闸装置经短时间间隔后使断路器重新合上 。大多数情况下,线路故障(如雷击、风害等)是暂时性的,断路器跳闸后线路的绝缘性能(绝缘子和空气间隙)能得到恢复,再次重合能成功,这就提高了电力系统供电的可靠性。少数情况属永久性故障,自动重合闸装置不再动作,需查明原因,予以排除。一般情况下,线路故障跳闸后重合闸越快,效果越好。重合闸允许的最短间隔时间为0.15~0.5秒 。线路额定电压越高,绝缘去电离时间越长。自动重合闸的成功率依线路结构、电压等级、气象条件、主要故障类型等变化而定。据中国电力部门统计,一般可达60%~90%。用电部门的另一种广泛应用的反事故措施是备用电源自动投入,通常所需时间为0.2~0.5秒。它所需投资不多而维持正常供电带来的经济效益甚大。 |
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