The best in the world would have to be British Morgan carbon brushes and French Roland carbon brushes, both of which are top brands. Xiangtan Carbon Brush Factory sells imported carbon brushes regularly and is the authentic Chinese agent for Morgan and Roland carbon brushes. carbon brushes. I bought them and used them at home. It's true. You can see it by looking at their website K/ www.xttsc.cn/B Application motors: Siemens, ABB, GE motors, ALSTOM, VEM. , Westinghouse, Reliance, Wingey, etc.
Wind turbines are usually alternating current, but they can also be direct current. DC generator has its limitations and its cost is also high because DC generator has to pass through armature and carbon brushes while generating power. Long-term use will cause wear and need to be replaced frequently, and when the power exceeds the bearing. Frame capacitye and carbon brushes, it will produce sparks that are easy to burn. The alternator directly produces current through three-phase lines, which avoids the wearing parts of the DC generator and can be very large, so wind turbines generally adopt an alternator design. I am professional in wind turbine design, so the answer is correct.