Application Of The Automatic Tuning Device In35kV System

There are many interruptions that happen nowadays are mostly caused by two singlephase groundings develop to a multi phase grounding, as the system unable to meet thecompensation of the current. With the increasing capacity of distribution network and newlarge-scale use of electrical equipment, a suitable neutral grounding is more and moreimportant for the safe operation of the power grid. In recent years, the automatic tuningdeveloped very fast, and it’s been widely used in the medium voltage distribution network.Based on the research of domestic an foreign arc suppression coil tuning technologydevelopment and application of the status quo, this article analyses the operationcharacteristics of power grid under several grounding mode, and lays special stress on theresearch of neutral point through the arc suppression coil grounding way, it also proposesvaluable suggestions about choosing which grounding way of the neutral point. This articlealso go further study about the theory、condition and the line selection equipment of theautomatic tuning.Combining with the actual production of the Power Plant Co, Ltd. Guangzhou, thisarticle provides the arc suppression coil automatic tuning device transformation program onthe35kV system of power plant: To determine specific plan for the automatic tuning of35kVsystem, including the selection of the equipments, the setting and transforming of the capacity;after the transforming, automatic tuning device operates well and meets the demands of theautomated equipments. This has made good economic effect and social benefit.