The wind brush holder assembly is used in conjunction with the generator slip ring, and the system is integrated to realize the stable transmission of the generator rotor current. After years of accumulation, Morteng has independent intellectual property rights to develop an integrated carbon brush holder assembly of more than 5MW. Instead of the multi-small carbon brush combined structure in the prior art, the problem of uneven flow of carbon brushes is solved, with fewer contact points, lower failure points, and stable performance.