IEC 60034-18-31:2012
旋转电机.第18-31部分:绝缘系统功能性评定.成型绕组试验规程.电机绝缘系统热评定和分级

Rotating electrical machines. Part 18-31: Functional evaluation of insulation systems. Test procedures for form-wound windings. Thermal evaluation and classification of insulation systems used in rotating machines

标准号

IEC 60034-18-31:2012

发布

2012年

发布单位

国际电工委员会

当前最新

IEC 60034-18-31:2012

 

 

引用标准

IEC 60034-15:2009 IEC 60034-18-1:2010 IEC 60034-18-42 IEC 60060-1 IEC 60085 IEC 60216-1 IEC 60216-4-1 IEC 60216-5 IEC 60505

被代替标准

IEC 2/1662/FDIS:2012 IEC 60034-18-31:1992

适用范围

This part of IEC 60034 describes thermal endurance test procedures for classification of insulation systems used in a.c. or d.c. rotating electrical machines with indirect cooling and form-wound windings. The test performance of a candidate insulation system is compared to the test performance of a reference insulation system with proven service experience. The test procedures described in IEC 60034-18-31 are intended to compare the thermal endurance performance of the mainwall insulation between conductor(s) and ground and, where required by the design of the coil or bar, the insulation between the turns. The test is not intended to simulate the in-service mechanical stresses experienced by the endwinding bracing or support materials. It does not include the evaluation of thermomechanical deterioration by expansion and contraction of insulation during temperature cycling. IEC 60034-18-1 describes general testing principles applicable to thermal endurance testing of insulation systems used in rotating electrical machines. The principles of IEC 60034-18-1 are followed unless otherwise stated in IEC60034-18-31. The thermal class for the insulation system refers to its maximum allowed (“hot spot”) temperature. The average temperature measured in service should not exceed the allowed temperature rise according to IEC 60034-1.

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