低压大功率变频三相异步电动机绝缘结构研究

摘要

Upon analysing on the inter-turn burnt for VSD motors, test was conducted to verify the reliability on the proposed insulation structure. Better results were achieved with adopting Dupont paint film variable frequency copper wire, strengthening the first turn insulation and binding on the overhang, improving the varnish and drying process, enhancing the integrity for the winding.%分析了变频电机出现匝间烧毁的原因。通过试验验证，研究较为可靠的绝缘结构，采用杜邦漆膜变频线，加强首匝绝缘，加强绕组端部绑扎，改善浸烘工艺，增强绕组的整体性等，取得了较好效果。