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塔式起重机作业过程中经常出现漏电开关频繁跳闸故障,影响塔机正常使用。为此,笔者结合施工现场塔机多起漏电开关频繁跳闸故障进行了详细研究,并提出排查方法。1.漏电开关技术参数塔机用漏电开关技术参数包括额定电流、动作电流和动作时间。额定电流是指漏电开关的额定工作电流。额定电流应满足塔机用电设备工作需要,其大小决定漏电开关的规格。
Tower crane frequently leaks frequently trip during operation, affecting the normal use of tower crane. To this end, the author combined with the construction site tower crane more frequent trip fault leakage conducted a detailed study and put forward troubleshooting methods. 1. Leakage switch technical parameters Leakage tower switchgear technical parameters include the rated current, operating current and operating time. Rated current is the rated working current of earth leakage switch. Rated current should meet the needs of tower crane electrical equipment work, the size of the leakage switch to determine the size.