Reflections on the Test of the Protection of an Elevator Ground Fault
An elevator ground fault is a common type of faults.In a control circuit without a ground protection sys-tem,when a ground fault occurs,it will cause an accidental short circuit of the control circuit and then make vari-ous electrical switches fail,and an elevator will start and run without protection and result in serious casualties.Through a test case,this author analyzes elevator ground protection,reveals the equipment defects and potential ac-cident risks caused by ground faults,and finally also discusses the method and key points of the test of elevator ground protection in detail,which provides some reference and guidance for practical tests.
Elevator ground protectionTest methodFailure case analysisKey inspection point
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