In order to improve the reliability of protection configuration for 500 kV station transformer in HVDC converter station,the typical short circuit was analyzed and calculated,in which the parameters and connecting pattern of500 kV HV station transformer in Jiangmen converter station of Nuozhadu-Guangdong ± 800 kV UHVDC transmission project was taken as the model. The protection configuration scheme of 500 kV HV station transformer connected 500 kV AC distribution device with 3 /2 wiring was proposed,which i...