By comparing the advantages and disadvantages of the current maintenance and detection system methods, the significance of pioneering and applying transformer-type power equipment status monitoring and fault diagnosis technology is analyzed, the current transformer detection and fault diagnosis technology is studied, a......

Researchers Fan Hongtao and Zhang Yonggang from Xiangyang Power Supply Company of State Grid pointed out in the 2nd issue of "Electrical Technology" magazine in 2016 that in 220kV intelligent substations, 220kV circuit breakers are generally equipped with dual intelligent terminals, which are equivalent to tw......

The deformation of transformer winding core directly or indirectly damages the transformer. This kind of fault hidden danger cannot be diagnosed by conventional electrical tests. The vibration online monitoring method of transformer and similar structure power equipment was first applied to shunt reactors abroad in rec......

Differential protection is the main electrical protection to ensure the normal operation of transformers in substations. When a short circuit occurs in the electrical part surrounded by the current transformers on both sides of the transformer, the protection will quickly operate without delay to cut off the fault. If ......