In order to study the saturation hysteresis characteristics of transformers, based on the PSCAD platform, this paper uses the transformer Saturation module and the Hysteresis module to establish a transformer model of the saturation hysteresis characteristics and simulate and analyze the saturation parameters in the transformer module and the improved J-A model parameters. First, the influence of ...Show More
At present, the neutral point of ungrounded transformer in our country is usually protected by gap and/or arrester. The overvoltage including lightning overvoltage and power frequency overvoltage may cause misoperation of protection gap or thermal collapse of arrester, which affects the safe and reliable operation of the system. In recent years, Shenzhen power grid has suffered several faults caus...Show More
