Vanguard TRF-250

Automatic 3-Phase Transformer Ratio Finder

Vanguard TRF-250
  • Battery-powered
  • Ratio range: 0.8 – 50,000 : 1
  • Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards
  • 4 test voltages: 4Vac, 40Vac, and 100Vac, and 250 Vac
  • Phase angle and excitation current measurement
  • Bluetooth and USB PC interfaces
  • 4.5” wide thermal printer