变压器差动保护在稳态情况下的不平衡电流产生的原因是什么?
["\uff081\uff09\u7531\u4e8e\u53d8\u538b\u5668\u5404\u4fa7\u7535\u6d41\u4e92\u611f\u5668\u578b\u53f7\u4e0d\u540c\uff0c\u5373\u5404\u4fa7\u7535\u6d41\u4e92\u611f\u5668\u7684\u52b1\u78c1\u7535\u6d41\u4e0d\u540c\u800c\u5f15\u8d77\u8bef\u5dee\u800c\u4ea7\u751f\u7684\u4e0d\u5e73\u8861\u7535\u6d41\uff1b\n\uff082\uff09\u7531\u4e8e\u5b9e\u9645\u7684\u7535\u6d41\u4e92\u611f\u5668\u53d8\u6bd4\u548c\u8ba1\u7b97\u53d8\u6bd4\u4e0d\u540c\u5f15\u8d77\u7684\u4e0d\u5e73\u8861\u7535\u6d41\uff1b\n\uff083\uff09\u7531\u4e8e\u6539\u53d8\u53d8\u538b\u5668\u8c03\u538b\u5206\u63a5\u5934\u5f15\u8d77\u7684\u4e0d\u5e73\u8861\u7535\u6d41\uff1b\n\uff084\uff09\u53d8\u538b\u5668\u672c\u8eab\u7684\u52b1\u78c1\u7535\u6d41\u9020\u6210\u7684\u4e0d\u5e73\u8861\u7535\u6d41\u3002"]