How to check the connection correctness of "l", "n", "s" lines is discussed on the shortcomings of on-load test for zero-sequence power direction component.

针对当前零序功率方向元件带负荷试验的不足之处，讨论了如何检查“L”、“N”及“S”线的接线正确性。

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This paper mainly discusses the two operating points for the test of synchronous machines, no-load point and zero power loading point.

本文主要对同步电机试验中的空载点和零功率负载点两个特殊工作点的运行工况进行了分析。

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