Abstract：At present, the substation's secondary safety bill is manually compiled, with heavy workload, low efficiency and easy to make mistakes. At the same time, because the safety bill needs on-site investigation of all kinds of information, the paper method is not convenient for remote examination and issuance, filing and inquiry, can not achieve the full closed-loop management of safety bill. Through researching the working habits of the operators in the process of implementing the security bill, and based on the integration of multiple security related application modules by the mobile operation terminal, this paper develops the security mobile operation APP and designs the various roles involved in the security bill. The authority and approval process, the establishment of a complete set of secondary security information management system, through the system can achieve the whole process of security information collection and paperless office, to achieve the whole process of secondary security management and contro. At the same time, the system has a complete security strategy, which can ensure the security of the system operationl. The technology has been applied in the 500kV Zhongwu Transformer in Suqian, Jiangsu Province. The results show that the system can greatly improve the invoicing speed and correctness of maintenance personnel, facilitate the management of secondary security invoicing, and further improve the level of information construction of secondary security measures.
2019, Vol. 20 
