Research on Transformer Barrier Maintenance System Based on Intelligent On-line Detection Technology

Based on the computer information technology of the smart grid, an online detection method of a transformer fault is proposed. The relay protection operation and maintenance technology is used for on-line monitoring of transformer status. Each device status sampling unit is combined with the IEC61850-9 protocol interface and then the transformer operating status is estimated in different transformer models .The fault detection function is constructed according to the estimated status to detect sudden faults online. Analyze and propose maintenance plan using relay protection operation and maintenance technology, combine each equipment unit with the IEC61850-9 protocol interface, and analyze the main maintenance work, operation and maintenance items, and overhaul measures of equipment. The simulation results show that this method can detect sudden and potential faults that lead to changes in transformer winding parameters.