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Overview:
Step-down transformer is one of the most important electrical components in the power system, and relay protection device is an important guarantee for the normal operation of the power system. With the continuous development of the society, the rapid progress of the economy and the continuous improvement of living standards, people's requirements for electric power are also gradually improved, which puts forward higher requirements for the relay protection of step-down transformer. The design of relay protection we should from its protection principle, specific relay protection measures made for transformer faults, and the importance of relay protection from these aspects to make a brief relay protection design.
