Power transformers for the entire power system safe and stable operation can have a crucial impact

As the core of the power system equipment, power transformers for the entire power system safe and stable operation can have a crucial impact. Among them, the relay action is  air circuit breaker  the reliability of  power transformers  key elements of safety equipment. However, the operation of the electricity transformer protection statistics show that, as a large power transformer differential protection for  mcb circuit breaker , the correct action rate has been at a low level, which is the actual current grid security requirements and levels of development do not match. In recent years, with the structure and composition of the power system complexity increases.