题目：
对某故障变压器的油进行色谱分析，其组分是：总烃不高，氢（H2）＞100ppm，甲烷（CH4）为总烃中的主要成分。用特征气体法判断属于（）故障。
A.一般过热性；
B.严重过热性；
C.局部放电；
D.电弧放电。
答案：
参考答案：C
对某故障变压器的油进行色谱分析，其组分是：总烃不高，氢（H2）＞100ppm，甲烷（
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