IEC61558-1 温度测试
Transformers are supplied at the rated supply voltage and loaded with an impedanceproducing the rated output, at the rated output voltage and, for a.c. current, at the ratedpower factor. The value of the output current is measured when steady state is established.Then the supply voltage is increased by 10 % and the output current is adjusted to the samevalue measured before. The output current is not adjusted for independent transformer. Afterthis no change is made in the circuit. The test is repeated under no-load condition if this is amore unfavourable situation。对于带外壳线性变压器，做这个测试，产品不是在过载吗？怎么不按其它标准带额定负载呢？
本帖最后由 jjlamshushushu 于 2014-4-15 16:50 编辑
这个条款来自哪个章节？14.1章节里的温升测试就规定是额定阻抗下用1.1倍额定电压进行的；15章节的过载测试和短路也是在温升测试之后才能进行的。不同类型的变压器过载电压是不同的。
14章温升测试，我是说负载条件IEC61558 为什么要过载测试（对线性变压器而言）？
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