Abstract:Firstly,the requirements of centralized monitoring and control functions in substation are briefly analyzed as well as the deficiency of the existing implementations which are mainly designed for dispatchers. Then,several improvements are proposed for a better support of the monitoring and control under normal situations and the alarming under outages or abnormal situations. These improvements have been deployed in large - scale dispatching and control centers,which improves the efficiency of centralized monitoring and control in substation.