【摘要】 介质损耗角正切tgδ的测试是电气设备绝缘监督的一项重要措施.做好介质损耗的测量对于发现电气设备绝缘隐患,保证电气设备的安全运行有着重要意义.但在外电场干扰时,其tgδ测试值误差较大,因而会影响对电气设备绝缘状况的正确判断.本文在对外电场干扰下tgδ的测量方法进行了分析研究,指出抗干扰源法是测试tgδ的新方法.更多还原

【Abstract】 The testing of medium wear-angle tangent tgδ is an important measure to monitor insulation of electrical machines, and also benefits the safe operation of electrical equipments. But under the interfering of outer electrical field, the error of tested value of tgδ is considerable, which will work against the correctjudgement of the insulation of electrical machines. In this paper the tgδ testing method--anti-interferingcurrent source is studied and analyzed,which is a new method for testing tgδ and is worth promoting.更多还原