It has evident effect on low power factor working of motor, decreasing line loss and improving load ability of transformer.

实行电动机无功就地补偿，对改变电动机低功率因数运行、减少线路损耗、提高变压器带载能力，有明显效果。

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The manual measurement has been adopted for a long time, which is greatly affected by artificial factor resulting in low measuring precision and can't be processed by automatic line.

人工检测受人为因素影响很大，工作效率低，不能形成自动化的生产线。

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This paper presents the design and implementation of a zero-voltage-transition power factor correction (PFC) converter having high power factor, high efficiency, and low harmonic line current.

本文研制一个具有高功率因数、高效率、低谐波且可操作于高频之零电压切换升压型功因修正器。

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