国际、国家标准中联结组采用时钟序数标号标志移的建议

doi:10.11985/2019.04.015

摘要/Abstract

摘要：

IEC60076-1第6项和GB1094.1-2013/XG1-2018第7项都规定：联结组用钟时序数标号相位移,通过改变相量图排列组合模式,旋转线相电压相量Δabc进行分析。这样的分析法不能简化分析程序,降低分析难度,提高分析效果。根据联结组相量分析规律提出：联结组用时钟序数标号标志移,相量图排列组合模式保持不变,不必旋转Δabc,而是通过移动A、a相引出线标志U_A(分针)、U_a(时针)进行分析,这种分析法与国内外现行的联结组相量分析法比较,大幅简化了分析程序,降低了分析难度,提高了分析效果。根据联结组相量分析规律认定：国际标准规定联结组用钟时序数标号相位移,表面上看是相位移,实质上是标志移。在钟时序数标号相位移表示法中可以看出,线相电压相量Δabc与a相引出线标志U_a同时旋转就是相位移,如果Δabc不旋转,而是移动a相引出线标志U_a,就变成了标志移答案相同。

关键词: 变压器, 联结组, 相量分析, 相位移, 标志移

Abstract:

Item 6 of IEC60076-1 and item 7 of GB1094.1-2013/XG1-2018 stipulate that the phase shift of clock ordinal number is used in the connection group, and the analysis is carried out by changing the combination mode of phasor diagram arrangement and rotating the line and phase voltage phasor of Δabc . This method cannot simplify the analysis process, reduce the analysis difficulty and improve the analysis effect. According to the law of phasor analysis of connection group,the following views are presented. The connection group is marked by clock ordinal mark shift, and the phasor diagram arrangement and combination mode remains unchanged, instead of rotating Δabc, but by moving lead-out wire mark minute hand U_A ( or hour hand U_a ) of A( or a ) phase for analysis. Compared with the current connection group phasor analysis method at home and abroad, this analysis method greatly simplifies the analysis process, reduces the analysis difficulty and improves the analysis effect. According to the law of the phasor analysis of the coupling group, the international standard stipulates that the phase shift of the coupling group is marked by the clock ordinal number. It can be seen in the clock ordinal number label phase shift method that the line phase voltage phasor Δabc and a phase lead line mark U_a rotate at the same time is phase shift, if Δabc does not rotate, but move a phase lead line mark U_a, it becomes the same sign shift answer.

Key words: Transformer, connection group, phasor analysis, phase shift, mark shift

中图分类号:

TM401

杨延年. 国际、国家标准中联结组采用时钟序数标号标志移的建议[J]. 电气工程学报, 2019, 14(4): 98-105.

Yannian YANG. Suggestions on Mark Shift of Clock Ordinal Number Label in Connection Group of International and National Standards[J]. Journal of Electrical Engineering, 2019, 14(4): 98-105.

图/表 7

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图7

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