漏电保护是从泄漏电流、人体触电等非金属性单相接地故障考虑,用来保护人身及设备安全的一种保护方式。漏电保护器的类型很多,目前广泛应用的是电流型漏电保护器,其主要由零序电流互感器、脱扣机构及主开关组成。零序电流互感器是检测元件。漏电保护器能否可靠动作,主要取决于故障电流或漏电电流的途径。下面谈谈漏电保护在不同接地系统中的应用。 Leakage protection is from the leakage current, the human body electric shock and other non-metallic single-phase ground fault consideration, used to protect the safety of personal and equipment a way of protection. There are many types of earth leakage protectors. Currently, the current leakage protectors are widely used. They mainly consist of zero sequence current transformer, tripping mechanism and main switch. Zero sequence current transformer is the detection element. Leakage protector reliable operation, mainly depends on the fault current or leakage current path. Now talk about leakage protection in different grounding system.