1) bus-tie TA
母联TA
1.
The effect of the bus differential winding selection on the scope of bus protection in bus-tie TA;
母联TA中母差绕组的选择对母线保护范围的影响
2) TA connection group
TA联接组
1.
The corresponding solutions are given as follows:to adopt mathematics method for the matching of TA connection group;to add additional stable region to verify TA saturation;to integrate current and voltage to distinguish the break or short of TA secondary circuit;and to strengthen HMI to avoid problems like TA phase sequence,polarity a.
对这些问题给出了解决方法:利用数学方法解决TA联接组的匹配;针对TA饱和的附加稳定区判别法;电流电压量综合判别法识别TA二次电路断线或短路问题;加强保护的人机接口功能,避免TA接线的相序、极性和接地问题。
3) coupler
[英]['kʌplə] [美]['kʌplɚ]
母联
1.
Research of busbar protection s logic on dead-zone fault of coupler;
母线保护中母联死区故障保护逻辑的研究
2.
The article introduces two arithmetic of partial differential,and analyses the method of using compare the current vector of coupler breaker,and provides sampling arithmetic and vector arithmetic.
母线微机保护装置已发展的比较成熟,装置通用的选择故障母线的方法是利用总差动和分差动相配合;文中介绍了利用分差动选择故障母线时的两种算法,分析了利用母联电流方向比较元件选择故障母线的方法,并从瞬时值方面和向量值方面提供了两种算法。
3.
Automatic switching malfunction of 2245 coupler due to upper power source loss of Guang an 220 kV substation was discussed.
探讨了某次系统事故中,广安220kV变电站由于上一级电源失电,2245母联自投误动作,2245母联CSB-21A备自投装置由于采用可编程逻辑的设计思想,序列存在缺陷,未将“对侧母线无压”作为闭锁条件,导致2215、2216同时跳闸出口的相关问题,并结合实际运行经验,提出了一些观点。
4) bus differential and bus-coupler protections
母差母联
5) transformer/CT connection compensation
变压器TA联结补偿
6) bus coupler malfunction
母联失灵
1.
This paper analyses problems existing in practice and corresponding improvement measures,points out the problem of adopting typical design for bus coupler malfunction protection when bus-bar or bus-coupler dead zone fault exists presently,and also enu.
在目前220 kV双母线接线的母线断路器失灵保护的设计中,存在以下几种特殊情况,即:线路故障时线路断路器失灵后分别出现主变断路器、母联断路器及出线断路器再失灵的连环失灵特殊情况,并分析了现场实践中存在的问题及改进措施,另外还提出目前存在母线或母联死区故障时母联失灵保护沿用典型设计存在的问题,列举了可以取消母联失灵外部启动回路的必要性。
2.
This paper introduced the configuration of 220kV microprocessor-based bus protection of Hunan power grid,analyzed interrelation among bus differential,bus coupler malfunction and breaker malfunction protections,and enumerated the necessity and feasibility of canceling external starting loop in bus-coupler malfunction and the unattached voltage blocking device RCS-918A.
介绍了湖南电网220kV母线保护的配置现状,分析了各种母差保护、母联断路器保护、失灵保护之间的配合关系及存在的问题,论证了取消母差与失灵保护间的二次回路、取消独立的复合电压闭锁装置RCS-918A的可行性和必要性,对充电时母联失灵和母联死区故障无保护的问题提出了改进措施。
补充资料：母母
1.对夫兄之妻的称呼。
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