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介绍大型汽轮发电机进相运行中受到的限制条件，提出进相运行在线自动控制装置。该装置试验及运行实践表明，在发电机进相运行时，它能有效地自动控制发电机进相深度，人为误操作时，装置也能保证发电机不失稳，使厂用电电压和定子电流在要求值内，提高机组运行可靠性。
This paper introduces the limitations of the large-scale turbo-generator in the phase-in operation and proposes the on-line automatic control device for the phase-in operation. The test and operation of the device show that the generator can effectively control the depth of the generator automatically when the generator is in the phase-in operation. The device can also ensure the generator not to lose its stability when man-made misoperation, so that the generator voltage and the stator The current is within the required value to improve the operational reliability of the unit.