短路计算和无功补偿是选择、校验电气设备的重要依据。相关文献对短路电流的冲击值和有效值的阐述不够清晰，很容易导致理解上的误区。在确定无功补偿容量计算中，由于忽略其工程性实践性，导致计算结果存在明显的缺陷。文章就上述问题进行了深入分析，说明了误区及缺陷产生的原因，提出自己的观点并给出计算结果。%Short circuit calculation and reactive power compensation are important basis to select and check electrical equip-ment.The description about the impact value and the effective value of short circuit current in the related literature is not clear , and easily lead to misunderstanding.Especially, the reactive compensation capacity calculation often neglects the engineering prac-tices, which lead to obvious defect results.To further study the above questions, this paper illustrates the reasons of the errors and the defects, and puts forward our own views and gives reasonable suggestions and calculation results.
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