TR-Mark III R 250V
3-Phase Ratio Meter

TR-Mark III R 250V: Fully Automatic, Three Phase Transformer Turns Ratio Meter

The TR-Mark III R 250V turns ratio is the same instrument as the TR-Mark III 250V, but built into a 19” rack housing.

Therefore, it can be used very well in test labs or be assembled into complete measurement systems. The TR-Mark III R 250V offers new features and increased accuracy to make it a perfect system. A color LCD with a back light and a touch screen increases handling and user comfort. Four USB interfaces make it easy to store measurements on external storage devices, transfer easily to a personal computer, and transfer or download nameplate data of the transformer to test.

  • Extended test voltage measurement range of up to 250V
  • Automatic measurements of Voltage, Turns Ratio, Current and Phase displacement
  • Easy one-time hook up to the transformer
  • Automatic test voltage range
  • Displays deviation from a nominal ratio
  • Tap changer interface with graphic results
  • Load on test object <0.05 VA
  • Measures Power transformers, PTs and CTs
  • Automatic vector group detection
  • Enhanced heavy-duty protection circuitry
  • Emergency stop button immediately turns off output
  • Data storage for more than 10,000 measurements
  • Simple-to-operate color LCD touch screen with back light
  • Two USB interfaces
  • 5-Year standard warranty