英语翻译2-3 Generator winding connectionsBecause three-phase cir

英语翻译
2-3 Generator winding connections
Because three-phase circuits have just three or four wires,but the three armature windings have six terminals,some of these terminals must be connected together.There are just two practical ways of connecting these windings:either in a wye (Y),or in a delta (△).These connections are not limited to generator windings but apply as well to transformer windings and to loads,as we will study in other sections.
In the Y connection,the primed terminals are joined at a common node,marked N for neutral.In practice,this fourth node may be at ground.Clearly,this Y connection results in a four-wire circuit.Incidentally,in the future we will not show the primed terminals but will use N instead.The Y connection got its name because of the practice of showing the windings in the shape of a Y to indicate that the corresponding induced voltages differ in phase angle by 120º.Of course,in a generator the windings are not arranged in the shape of a Y.
Note that the line currents IA,IB,and IC are also the winding currents,called phase currents.A line current is of course,a current in one of the lines connecting the source to the load,A phase current is a current in one of the generator or transformer windings or a current in a single impedance of a load,as we will see.The term phase is often used to refer to a particular winding or load.To repeat for emphasis,the line currents are the same as the phase currents for a Y connection.
A Y connection has two sets of voltages.The voltages VAN,VBN and VCN between terminals A,B,and C and the neutral terminal N are called phase voltages because these are the voltages across the windings.These differ from those line-to-line voltages,or just line voltages,VAB,VBC and VCA,between terminals A,B,and C.Notice that each terminal is positively referenced for one line voltage and negatively referenced for another.With this arrangement these line voltages must add to zero,as can be verified by applying KVL around a closed path that includes the three terminals A,B and C.This path will be in air because there are no connections directly between these terminals.In another section we will derive equations relating the line and phase voltages for a Y connection and will show that the line voltages,like the phase voltages,all have the same peak values and are phase-displaced by 120º.Also,the line voltage peaks are times the phase voltages peaks,and the set of line voltages and the set of phase voltages are phase-displaced from each other 30º.

翻译如下,这篇文章很专业嘛,
2-3发电机绕组的连接
由于三相电路刚刚三,四线,但3电枢绕组有六个终端,这些终端的一些必须连接在一起.目前只有两个在星形连接（Y）的,或在三角洲这些绕组：要么（△切实可行的方式）.这些连接不仅限于发电机绕组,但也适用于对变压器绕组和负载,我们将学习其他章节.
在Y方面,引终端加入一个共同的节点,标记为中立ñ.实际上,这第四个节点,可在地面.显然,这在一个四线电路Y接的结果.顺便说一句,今后我们将不会显示终端的引物,但会使用N代替.在Y接了其由于显示在一个Y形绕组的实践表明,名称相应的感应电压的相位角相差120度.当然,在一个绕组不在一个y的形状排列发生器
请注意,线电流保险业监督,鉴证和IC也是绕组电流,称为相电流.甲线电流当然,当前在连接源到负载线,一个阶段一个是目前在发电机或变压器绕组或在一个单一的阻抗负载电流1当前,我们将看到.在中期阶段通常用来指一个特定的清盘或加载.要重复强调,线电流是作为一个Y连接相电流相同.
阿Y接有两个组的电压.梵,挥发性盐基氮和价值协同网终端之间的A,B和C和N的中性终端称为相电压,因为这些都是在绕组的电压电压.这些有别于线到线电压,或者只是线路电压,而VAB,华达和压控放大器终端之间的A,B和C注意,每个终端是一个积极的参考线路电压和负另一个引用.有了这项安排这些线路电压必须添加到零,这可以通过应用围绕一个封闭的道路永卓,其中包括三个终端的A,B和C这条道路将在空气中,因为没有这些终端之间的连接,直接验证.在另一节将获得方程有关的路线,为Y接相电压,并表明,线电压,相电压一样,都有相同的峰值,并逐步由120 º流离失所.此外,线路电压峰值倍相电压峰值,以及一套线电压和相电压设置的阶段,从30 º相互流离失所.