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对电动单梁起重机失压保护的常规电气设计进行了分析,介绍了失压保护常规电气设计原理,指出了存在的缺陷,提出了相应改进办法,使失压保护功能更加完善和可靠。
The conventional electrical design of single-girder crane under voltage-loss protection is analyzed. The principle of conventional electrical design for loss-of-voltage protection is introduced. The existing defects are pointed out. Corresponding improvements are proposed to make the voltage-loss protection function more perfect and reliable.