Test More Combinations of Transformer Configurations with the Raytech TR-Spy Mark II

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The Raytech TR-Spy Mark II is the next generation of the legendary TR-Spy which has quickly become recognized as the World’s most advanced Three Phase Transformer Ratiometer.


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

The Raytech TR-Spy Mark II only requires a single hook-up to the transformer to run a complete series of tests, as all connections of various transformer configurations are accomplished internally.

Charts or calculations for testing are not required and the Raytech TR-Spy Mark II can test more combinations of transformer configurations than any other system making it the most versatile, and easiest to use.

The Raytech TR-Spy Mark II tests one of the widest ratio ranges available (0.8 – 13,000) and has the highest accuracy of any Automatic Three Phase Ratiometer (0.08%) available.

Whatever your electrical testing equipment rental needs might be, one day or several months, Protec is here to help you complete the project, on time and within budget.