The Vanguard TRF-100 Automatic Three Phase TTR is a microprocessor-based, automatic, three phase, transformer turns-ratio tester.
A lightweight, portable unit designed for testing transformers at utility power substations, the TRF-100 Automatic Three Phase TTR determines the transformer turns-ratio using the IEEE C57.12.90 measurement method.
The transformer turns-ratio (ranging from 0.8 to 50,000) is determined by precisely measuring the voltages across the unloaded transformer windings. To ensure accuracy, the TRF-100’s measuring circuitry self-calibrates before each measurement. It requires neither adjustment nor temperature compensation. The TRF-100’s turns-ratio measurement accuracy is 0.1% or better.
With offices located in Texas, Illinois, New Jersey, Nevada and Georgia each maintaining a full stock of electrical test and measurement equipment, Protec can better serve your needs. Offering equipment from ABB, Doble, Dranetz, Eaton Cutler Hammer, ETI, Fluke, High Voltage, HV Diagnostics, Megger, Raytech, Square D by Schneider, Vanguard and other premium manufacturers, Protec provides for rent, lease or purchase, all the electrical testing equipment you need to get the job done.