Portable relay protector

The utility model discloses a portable relay protector, which comprises a relay protecting device and a tong type ammeter, wherein the output end of the tong type ammeter is connected with the current analog quantity input end of the relay protecting device, a constantly open current carrying conducting wire collects the analog current quantity and outputs the analog current quantity to the relay protecting device, and the open circuit generation of a captive test (CT) loop in a switching process is avoided. The current analog quantity input end of the relay protecting device is a jack arranged on a case of the relay protecting device, and the output end of the tong type ammeter is inserted into the jack for realizing the connection. The portable relay protector is used for replacing the relay protecting device in operation, the regular checking and the maintenance of the replaced relay protecting device can be realized when a primary loop does not have a power failure, the power failure operation or the prot