| The transformer substation in the power system is an important node in power transmission and it undertakes a lot of important tasks, such as voltage grade transformation and load flow distribution, etc, one equipment operation condition in the transformer substation directly influences the security, stability and reliability of the transmission grid and even the power system.Due to the need of national economy and power system development, the requirements for transformation equipment operation reliability and availability become higher and higher and the routine maintenance period can not meet equipment maintenance requirements, and therefore we need to count, analyze and evaluate the operation conditions, defect conditions and abnormal accident conditions of these equipment and make a scientific and rational equipment condition evaluation, and finally determine a rational equipment maintenance period and maintenance items and carry out condition-based maintenance according to evaluation results.
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