1) Negative sequence
负序
1.
The effect of negative sequence system on microprocessor differential protection of main transformer;
负序系统对微机型主变差动保护的影响
2.
Improving calculating of the negative sequence capability of the evaporative cooling turbo generator;
蒸发冷却汽轮发电机负序能力的改进计算
3.
Protection against earth short-circuit of responding negative sequence component and zero sequence component of power network;
反应电网负序和零序量的接地短路保护
2) negative phase sequence
负序
1.
this paper analyses the principle in which the reactive power and negative phase sequence current is compensated by SVG.
分析了静止无功补偿电源 (SVG)对牵引负荷的无功及负序的补偿原理 ,针对电气化铁路无功、负序和谐波等问题 ,给出综合补偿的控制算法 ,结合柳辛庄牵引变电所运行数据 ,提出补偿方案。
3) negative-sequence
负序
1.
At first,electrical energy quality is calculated and analyzed theoretically from two aspects of harmonic and negative-sequence,including harmonic current injected to point of common coupling(PCC),total harmonic distortion of voltage(THDU) of PCC,three-phase voltage unbalance factor of PCC and voltage fluctuation of PCC,etc.
先从理论上分析比较两种供电电压等级下电气化铁路注入系统的谐波和负序引起的电能质量,其中主要计算比较注入公共连接点母线谐波电流、电压总畸变率、三相电压不平衡度和电压波动等几个重要的电能质量指标。
2.
When only three leading terminals are provided in neutral side of a generator,the inter-turn protection usually consists of longitudinal zero-sequence voltage relay and directional negative-sequence relay based on fault component.
当发电机中性点侧仅引出3个端子时,定子匝问短路保护通常由纵向零序电压保护和故障分量负序方向保护构成。
4) negative sequence
负序,负相序,逆序
5) negative order current filter
负序滤序器
6) backward sequence
反向序,负序
补充资料:负序继电器
负序继电器
negative sequence relay
fuxu Ild}onql负序继电器(negative sequenee relay)依靠从输入的三相全电流或全电压分出来的相应的单一的负序电流、电压或功率作为动作量的一类继电器。按反应负序量的不同,可分为负序电流继电器、负序电压继电器及负序功率方向继电器.这一类继电器主要由两部分组成;负序滤过器(一种能从三相全电流或全电压分出相应负序分量的装置)和其翰出执行元件。这类继电器用模拟元件构成时,按构成负序滤过器的方案不同,可有多种结构型式,如电阻一电感型,电阻一电容型,集成电路型。按执行元件结构不同,可分为电磁型、整流型、晶体管型、集成电路型和数字型等。 负序电流继电器、负序电压继电器、负序电流增量(或突变量)继电器及负序功率方向继电器已广泛用于发电机、变压器及翰电线路继电保护中作为短路故障的起动元件、控制元件及判别元件等。反时限负序电流继电器是大型发电机的一种必备保护继电器。
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参考词条