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Large perceptual class motor load is the main production equipment of metallurgical enterprise, although has taken independent secondary substation power supply mode, but due to the influence of the impact load, Often appears on the bus voltage drop and low power factor and harmonic big problems, , this article is based on SVC compensation control mechanism, the sectional control mode, the principle of reactive power compensation and harmonic suppression methods are analyzed, , and designed a set of reactive power compensation and harmonic suppression function of comprehensive compensation device, it has been verified by actual operation, high reactive power compensation and harmonic suppression effect, and effectively suppress the busbar voltage drop and improving the quality of the power supply, created the direct economic benefits for the implementation of the enterprise.

Based on the Secondary Substations Sectional Reactive Compensation Technology Research and Implementation