154 An Apparatus of Preventing Potential Transformer Ferro Resonance in a 154kV Gas Insulated Switchgear Substation

摘要

The present invention relates to a substation potential transformer iron resonance prevention device of the 154kV gas insulated switchgear, detecting the iron resonance phenomenon by using the saturation characteristics of the reactor and the detector (10) to switch the switching action by saturating at a constant voltage And a circuit for conducting the circuit during reactor saturation and consuming a power, calculating a predetermined size for each 154kV GIS substation, calculating a resistance value and capacitance, and dividing it into a consumption unit 20 that consumes energy. It is characterized in that it serves to consume all the energy delivered to the bus bar blocked through, in order to prevent various failures due to the iron resonance phenomenon inevitably occurring in the structure of the GIS facility in the substation for driving 154kV GIS.