Test schemes for master station of distribution automation systems

Schemes are presented to implement FAT (factory accept test) of the master station of DAS (distribution automation system), test configuration contains emulated distribution network, test environment and test software, two types of test environments including total software scheme and software-hardware combined scheme are analyzed, and then generalize the conditions for automatic test. The implementation schemes of manual test and automatic test are analyzed in detail for the typical fault situations of feeder automation, and also include several kinds of special faults such as: telecontrol triggering fault, concurrent multi-faults, multi-sources fault, etc. Reliability tests make up of three aspects: 1) long-term continuous running under typically normal condition; 2) continuous automatic telecontrol with short period; 3) data avalanche test. The importance is analyzed for automatic test software performing long-term continuous test and result logging according to developmental and practical situation, and generalize the required time duration and data volume for presented test schemes.