Hello, I would like to ask which company mainly develops and produces Ji Xu's relay protection products. For example: power relay protection

Xuji Electric Co., Ltd. is headquartered in Xuchang, Henan, with a branch in Beijing. As for Xuji Electric's products, there are 800 series and WGB series of microcomputer protection, of which 800 series is the most widely used product in the main network of power supply bureau, and the voltage level ranges from 220KV to10 kV; The positioning of WGB series is medium and low voltage systems and distribution systems below 35KV. The above two series are all genuine products of Xu Ji Electric Co., Ltd. As for the PMF series mentioned upstairs, to put it bluntly, it is a counterfeit product, a private company with the brand of Ji Xu, but it has no administrative relationship with Ji Xu. The CBZ-8000 mentioned upstairs is the name of integrated automation system, not the name of microcomputer protection.