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。
Overload protection: equipped self re-setting overload protector, the hoist motion is stopped if overloading occurs, but lowering is permitted, making the crane safe.
过载保护装置：当过载发生时，运行下降，不允许上升，便于重物安全落地。
In order to ensure safe and reliable operation of a crane, it is necessary to install a torque limiter or overload protector.
为了保证起重机安全可靠地运行，必须安装力矩限制器或超载限制器。
For any level of transformer protection, air-cooled system can be configured (af), to improve short-term overload capacity, to ensure safe operation.
对于任何防护等级的变压器，都可配置风冷系统(AF)，以提高短时过载能力，确保安全运行。
Reliable and safe operation with overload and over torque protection.
该设备有过极限及过力矩保护。
It has overload protection equipment which insures the safe running of the equipment.
附有安全保护装置，确保使用人员之安全。
It has overload protection equipment which insures the safe running of the equipment.
附有安全保护装置，确保使用人员之安全。
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