CAJ | 학술논문

为降低成本并提高国内绝缘行业的技术水平，对大型发电机定子线棒VPI用绝缘材料进行国产化应用研究。以美国Hexion浸渍漆的性能指标为标准，检测了国产浸渍漆的各项性能、浸渍漆的贮存稳定性；以瑞士丰罗少胶云母带的性能指标为标准，检测了国产少胶云母带的电气性能、力学性能、透气性、促进剂含量和包扎工艺性能。检测结果表明：国产VPI绝缘材料（浸渍漆和少胶云母带）的各项性能都达到国外同类材料的性能指标要求。利用优选出的VPI绝缘材料制作铝排试验线棒，检测试验线棒的介损、介损增量、热态介损、电气强度和电老化性能。检测结果表明，铝排试验线棒的各项性能指标都达到试验要求。
위강저성본병제고국내절연행업적기술수평，대대형발전궤정자선봉VPI용절연재료진행국산화응용연구。이미국Hexion침지칠적성능지표위표준，검측료국산침지칠적각항성능、침지칠적저존은정성；이서사봉라소효운모대적성능지표위표준，검측료국산소효운모대적전기성능、역학성능、투기성、촉진제함량화포찰공예성능。검측결과표명：국산VPI절연재료（침지칠화소효운모대）적각항성능도체도국외동류재료적성능지표요구。이용우선출적VPI절연재료제작려배시험선봉，검측시험선봉적개손、개손증량、열태개손、전기강도화전노화성능。검측결과표명，려배시험선봉적각항성능지표도체도시험요구。
To reduce cost and improve the technology level of domestic insulation industry, we studied the application of domestic VPI insulating materials in large generator stator bar. Using the performance index of American Hexion impregnating varnish as standard, we tested the various properties and storage stability of the domestic impregnating varnish. Using the performance index of Switzerland Vonroll dry mica tape as standard, we tested the electrical property, mechanical properties, air permeability, accelerant content, and wrapping processibility of the domestic dry mica tape. The test results show that the proper-ties of the domestic impregnating varnish and dry mica tape can meet the performance index of similar foreign materials. Aluminum bars were prepared by the optimized domestic VPI insulating materials, and their dielectric loss factor, dielectric loss increment, dielectric loss factor at high temperature, electric strength, and electrical ageing performance were tested. The test results show that the various perfor-mance indexes of the aluminum bars could meet the test requirements.