1) three-phase short circuit
三相短路
1.
The three-phase short circuit currents of bulk electric power system are very high,and the high currents do harm to the working of the system.
大容量电力系统发生三相短路时 ,短路电流很大 ,对供电系统的运行产生极大的危害 ,而且短路电流的分析复杂。
2.
Firstly,an example of three-phase short circuit is given.
本文对Matlab/Simulink在"电力系统暂态分析"中的应用进行研究:首先给出电力系统三相短路实例;再利用理论计算和软件仿真两种方法对该系统空载运行时变压器低压侧母线发生三相短路的暂态过程进行分析;并得到短路电流周期分量与冲击电流。
3.
De-excitation of steam-turbine generator after abrupt three-phase short circuit(ATPSC)is serious situation.
汽轮发电机机端发生三相短路后的灭磁,是属于灭磁的严重情况。
2) three-phase short-circuit
三相短路
1.
Discussion of three-phase short-circuit criterion of phase selection relay based on delta variable element of phase current differential;
一种电流突变量选相元件三相短路判据的探讨
2.
Based on this model,three-phase short-circuit of synchronous machines are emulated and computed .
泵站同步电机突然三相短路传统的分析方法不仅理论复杂,且具有一定的局限性。
3.
Analyzes the cause of 6kV common box bus-bar three-phase short-circuit fault at No.
分析了内蒙古鄂尔多斯电力集团有限责任公司#2机组6kV共箱母线三相短路故障的原因,并提出了预防措施。
3) three-phase short-circuit current
三相短路电流
1.
With analysis of electrodynamics force about three-phase short-circuit current,after stress analysis,the appearance of short huge electrodynamics force influence outdoor post-mounted vacuum circuit breaker greatly.
针对三相短路电流产生的电动力进行分析,经过受力分析,瞬间较高的电动力对户外柱上真空断路器的影响很大。
2.
In short-circuit current calculations for Jiangsu Power Grid,it was found that the single-phase short-circuit current was bigger than the three-phase short-circuit current of 220 kV buses in some 500 kV substations and even exceeded the rated breaking ability of circuit breakers.
在江苏电网的短路计算中,发现部分500 kV变电站220 kV母线单相短路电流大于三相短路电流较多,且已超过断路器的额定开断能力。
4) three phase steady-state short-circuit
三相稳态短路
1.
It is approached and analyzed some problems related to testing methods for no-load,three phase steady-state short-circuit and zeropowerfactor characteristic,as well as the confirmation of parameters of motors.
就隔爆型无刷励磁同步发电机空载、三相稳态短路、零功率因数特性测试方法及电机参数的确定等问题进行分析。
5) sudden three-phase short circuit
突然三相短路
1.
3,simulation model of synchronous generator on sudden three-phase short circuit was built,various physical quantities were studied by sim.
同步发电机的突然三相短路,是电力系统最严重的故障,对电机本身和相关的电气设备都可能产生严重的影响,研究它有着非常重要的意义。
6) no-load three phase short circuit
空载三相短路
补充资料：单相短路电流
分子式：
CAS号：
性质：一相导体与保护导体发生短路时流经相-零回路的电流。单相短路电流是评价和设计保护接零系统设计的基本要素。保护接零系统的单相短路电流不应小于低压断路器瞬时动作或短延时动作过电流脱扣器的整定电流的1.5倍；不应小于低压熔断器熔体额定电流的4倍。
CAS号：
性质：一相导体与保护导体发生短路时流经相-零回路的电流。单相短路电流是评价和设计保护接零系统设计的基本要素。保护接零系统的单相短路电流不应小于低压断路器瞬时动作或短延时动作过电流脱扣器的整定电流的1.5倍；不应小于低压熔断器熔体额定电流的4倍。
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