Automatic Secondary Injection Relay Test Set WUHAN PRIMARY TESTER TECH&SCIENCE CO., LTD. Base Info Model NO.:HYJB-IIITrademark:HuayingTransport Package:Wooden CasesOrigin:China (Mainland)HS Code:9030849000 Description Pre:Auto signal Phase Relay Protection Tester for Voltage / Current Calibration Next:Transformer Oil Dielectric Strength Testing Equipment/Insulating Oil Breakdown Voltage Tester