1) Tap-changer
分接开关
1.
IEC Standard Evolution and Tap-Changer Technology Development;
分接开关技术发展与IEC标准的沿革状况
2.
To guarantee parallel distribution transformers working safely and prevent tap-changers from different grades,theoretical calculation of the circulation current and the abnormal current due to different grades of tap-changers is conducted,and fault analysis is performed.
为保证并列配电变压器的安全运行,杜绝并列运行配电变压器分接开关异位情况的出现,笔者对其分接开关异位时产生的环流及电流异常情况作了理论计算,分析引发的事故。
2) tapping switch
分接开关
1.
The paper presents configuration and operating principle for noncontact tapping switch that can on-load regulate voltage automatically.
文章介绍一种新型的无触点有载自动调压分接开关的构成和工作原理。
2.
The main idea of measuring the capacitance between line and earth using the tapping switch, which can be used to help to find the grounding failure line, is also di.
同时 ,对通过分接开关的有载调节进行导线对地电容的测算 ,以及协助进行故障相选线的设计思路进行了探
3) tap changing switch
分接开关
1.
The paper discussed the reason of tap changing switch fault,introduced the structural characteristics of this kind of rectification transformer.
叙述了某热轧带钢厂进口的额定容量为15600kVA整流变压器吊芯大修的背景和大修处理的过程,讨论了造成分接开关故障的原因,并介绍这种整流变压器的结构特点。
2.
The paper analyzes main problems of the mechanical tap changing switch of a transformer in practical use,presents the mechanical tap changing switch how to reform improvement and design of electrical control and relevant electrical circuit diagram.
本文从分析变压器机械式分接开关在实际使用过程中存在的主要问题出发 ,主要介绍了机械式分接开关如何改造成电气控制及相应的电气线路图的改进和设计。
4) tap changer
分接开关
1.
The long-term unbalance of the three-phase direct-current electric resistance of the coal mine substation host transformer,has led to grave product of tap changer charcoal,insulation oil flash point reduces,threatens the safe operation.
煤矿变电所主变压器由于长期三相直流电阻不平衡,导致分接开关严重积炭,绝缘油闪点降低,危胁主变压器安全运行。
2.
For instance,the effectiveness of fire-extinguishing device,whether or not necessary to install the tap changer and how to determine the economic ratio of losses between no load and on load.
目前大型变压器及其配套装置的选型存在一些值得商榷的问题,例如变压器灭火装置的有效性,是否需要安装分接开关以及如何经济合理地确定变压器的空、负载的比例。
5) Tap Switch
分接开关
1.
Electric Reconstruction of Transformer Tap Switch;
变压器分接开关的电气改造
2.
In the plan the tap switch used for on-load voltage regulation is safe,reliable and easy for maintenance etc.
方案中用于有载调压的分接开关具有安全、可靠、便于维护等特点,且不会产生需要特殊处理的废料,主要用于容量较小的、直接向低压负载供电的降压变压器。
3.
1 transformer abnormal oil spectrum,the inner faulty of transformer is analyzed and the faulty type is defined,and the treatment process of failure are also introduced due to the high temperature caused by the transformer winding tap switch,and finally draws the conclusion about how to rationally use and maintain the tap switch.
针对朔州电网220kV铺上变电站1号主变压器油色谱异常情况,进行了变压器内部故障分析,确定了该变压器由于分接开关的原因造成高温过热故障的处理过程,并提出了合理使用与维护分接开关的措施。
6) on-load tap-changer
有载分接开关
1.
Study on transformer s on-load tap-changer based on IGBT;
IGBT作为变压器有载分接开关的研究
2.
Analysis of negative current in switching tests for load tap on-load tap-changers of transformers;
变压器有载分接开关切换试验中负序电流分析
3.
The transformer accidents caused by the on-load tap-changer are arising in recent years.
近年来由有载分接开关引起的变压器故障呈现上升趋势,就一起有载分接开关引发的变压器绕组变形事故加以分析,希望能够减少类似故障的发生。
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
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