自耦变压器

Furthermore, there may be neutral stability concerns if there is no physical tertiary winding in the autotransformer.

而且，如果在自耦变压器中没有实值的第三线圈绕组，那么可能存在中性稳定性问题。

For UHV autotransformer, its voltage regulating method is special because of its voltage is so high.

特高压变压器在考虑体积、造价及可靠性的情况下，采用单相自耦变压器成为必然。

For these reasons, the use of an autotransformer to interconnect a generator to its host system should be approached with caution.

由于这些原因，采用自耦变压器将发电机与其主系统互连起来应予以仔细研究。

But there is a problem of related voltage change for an autotransformer.

而自耦变压器中性点调压则会带来相关调压问题。

Application of autotransformer neutral grounding by small reactance in 500 kV power system.

朱天游。500 kV自耦变压器中性点经小电抗接地方式在电力系统中的应用。

If the line voltage is outside of this range ,the Tester may not operate normally or may be damaged .if your AC line voltage is outside of this range ,be sure to convert it into within this range by using an autotransformer or other appropriate means .

如果电压在这个范围以外，测试装置可能无法正常运行或可能损坏。如果您的交流线路电压在这个范围以外，务必使用自耦变压器或其他适当的方法将它调整到这个范围以内。

Consideration of the structural characteristics of autotransformer, the principles and characteristics of zero-sequence differential protection are analyzed by taking PST1200 as an example, debugging method of zero-sequence differential protection is summed up briefly, the method can well verify the logical function correctness of zero-sequence differential protection, and it has been verified in practical application.

结合自耦变压器的结构特点，以南自PST1200变压器保护装置为例分析了零序差动的原理构成及特点，简要总结了零差保护的调试方法，能够较快且准确的校验零差保护逻辑功能的正确性，并已在实际工作中得到了很好的验证

The key part of light alarm circuit of the system is the flashing tube and the life level of the main charge and discharge capacitance. Thus ,in this design, adopted autotransformer step-up type, two-level filter and double flashing tube, in order to light the burden of the main charge and discharge capacitance, reduce the heat productivity and extend the life level of the capacitance.

在系统的光报警电路中关键部件是频闪管和主充放电容的寿命，因此在电路设计中采用自耦变压器升压方式和双级滤波、双频闪管等独特的电路结构，减轻主充放电容的负担，减少发热量，延长电容使用寿命。

In this paper the reason of rapid increase of single phase short circuit current in 500 kV substation is analyzed. Through the calculation it is proved that neutral grounding by small reactance is an effective measure to reduce the single phase short circuit current, and the calculation method of the zero\|sequence reactance after autotransformer neutral grounding by small reactance being applied is expounded.

文中研究了500kV变电站单相短路电流急剧增长的原因，计算了变压器中性点经小电抗接地对限制单相短路电流的作用，论证了经小电抗接地是限制单相短路电流的有效措施之一，并阐述了500kV自耦变压器中性点经小电抗接地后，其等值零序电抗的计算方法，可供工程参考。

The windings in the valve side adopt prolonged delta connection providing the circuit for three-multiple harmonic currents, and implementing 12-pulse converter through fit ratio; this connection between the common winding and prolonged winding can decrease the current impact when phase conversion takes place.

该换流变压器阀侧绕组采用延边三角形接线，为3倍次谐波电流提供通路；通过匝比配合，实现12脉波换流；其延边绕组与公共绕组构成自耦变压器接线，可减少换流器换向时的电流冲击；在公共绕组上连接滤波支路，并调至谐振点，配之以变压器巧妙的零阻抗设计，可以在阀侧实现无功补偿，可实现网侧绕组中无5、7、11、13次特征谐波，即谐波屏蔽。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。