N/a manufacturer / supplier in China, offering Continuously Working 5000A Primary Current Injection Tester Three Phase Temperature Rise Testing for Circuit Breaker and Transformer High Current Generator, Precision Automatic Upwelling Circuit Breaker 220V 5000atemperature Rise Tester High Current Generator Three Phase Temperature Rise Test Device, High Current Generator Temperature Rise Tester 5000A Three Phase Current Source Temperature Rise Test System/Equipment for Transformer and so on.