With working experience, the author has summarized the test methods of short circuit and overload protection of non-inherently short-circuit proof transformer and fail-safe transformer.
作者结合工作心得，对非固有耐短路、无危害式安全变压器的短路和过载保护测试方法进行了总结和归纳。
2
When electric power coupling transformer at input current is less than rated value, public winding can be also overload.
电力自耦变压器在其输入电流均小于额定值时，其公共绕组也可能过负荷。
3
The typical load curve which is selected for evaluating the overload ability of traction transformer must be reasonable, it should reflect accurately the operation status of traction transformer.