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Raytech TR-SPY Mark II Three Phase TTR (Transformer Turns Ratio)





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A rugged, lightweight instrument that automatically measures Turns Ratio, Voltage Ratio, Excitation Current, Phase Relationship, and Phase Displacement, the Raytech TR-Spy Mark II is a fully automatic instrument that can perform precision laboratory measurements, as well as function extremely well in the field for routine maintenance testing.


Raytech TR-SPY Mark II Three Phase TTR (Transformer Turns Ratio) features:

  • Automatic Three Phase TTR 
  • Select transformer type using simple user interface 
  • Measure voltage/turns ratio, current and phase displacement 
  • Store 100 test results on unit or export using RS-232 interface 
  • Ratio Measurement of .08 to 13000 turns 
  • Five test voltage ranges – 1V, 10V, 40V, 100V and Automatic 
  • Automatic phase vector detection