Suppressing resonance in transformer winding under very fast transient overvoltage
MetadataShow full item record
This paper presents a new method for suppressing internal resonance in power transformers connected to gas insulated substation (GIS) due to very fast transient overvoltage (VFTO) in the GIS. Internal resonance within the transformer windings will take place if one of VFTO frequencies matches with the power transformer natural frequency. In this context, the parameters affecting internal transformer resonance are investigated through the simulation of 400kV GIS connected to a 250MVA, three phase transformer and a new suppressing method for internal transformer resonances is proposed. In contrary with existing resonance suppressing approaches that call for modifications in the GIS structure, the proposed method in this paper can be employed with any existing GIS without any change in its structure.
Showing items related by title, author, creator and subject.
Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressorBabaei, M.; Abu-Siada, Ahmed (2017)© 1994-2012 IEEE. This paper investigates the feasibility of a cost effective method to prevent internal resonance in power transformers connected to gas insulated substation (GIS) due to very fast transient overvoltage ...
A New Cost Effective Approach to Suppress Very Fast Transients on Power Transformers Connected to Gas Insulated SubstationsBabaeilaktarashani, Mehdi (2016)This thesis investigates the feasibility of a new method to prevent internal resonance in transformers connected to gas insulated substation due to very fast transient overvoltage in the GIS. The possibility of utilizing ...
Liu, Huihua; Chaudhary, Deeptangshu; Yusa, S.; Tade, Moses (2011)We studied the influence of glycerol/MMT loading on the nanocomposites morphology prepared from amylose starch biopolymer with various glycerol/MMT (Na+-montmorillonite) concentrations. Samples were studied by X-ray ...