Easy Turns Ratio Testing with the Raytech Spy Mark II and Spy Mark III

The ratio of a transformer's windings need to be accurate to ensure proper conversion of power from the primary to the secondary windings. The turns ratio determines if the power will be raised to a higher voltage or converted to a lower voltage. If the ratio changes due to transformer defects, power conversion may be affected and cause instability in the electrical system or damage.

In order to catch problems early, it is important to conduct routine preventive maintenance. This allows you to anticipate repairs to save you time and effort. You don't want a transformer failing unexpectedly and not having a replacement available. If you are planning to get a reliable turns ratio tester, check out Raytech's ratiometers. These devices can automatically measure ratio and even voltage, current and phase displacement of transformers. These testers can give you valuable information about the condition of the transformer. 

Some of the popular testers you might be interested in are the Raytech TR-Spy Mark II Ratiometer and the Raytech TR-Spy Mark III Ratiometer. These devices feature a single button operation for quick and easy diagnostics. They have a graphical tap changer display and tap changer interface or easy operation. These ratiometers are rugger and reliable which makes them ideal for field use. 

Raytech TR Spy Mark II Ratiometer

This ratiometer features automated and easy operation. This tester is suitable for testing most commercial and industrial transformers.

Features

  • Automated measurement of voltage, current, phase displacement and turns ratio
  • 0.8 to 13,000 turns ratio range
  • Easy single button operation
  • Automated range selection
  • Tap change interface and display
  • Can measure PT's and CT's of power transformers
  • Automated detection of vector group
  • Heavy-duty protection system for safe operation
  • Can withstand a drop at a height of 1 meter
  • RS232 interface

Raytech TR Spy Mark III Ratiometer

This tester has similar functions with the TR Spy Mark II but has additional features like internal memory, USB port for attaching a USB key and a thermal printer. These features allow better diagnostics and archiving of test results.

Features

  • Automated measurement of voltage, current, phase displacement and turns ratio
  • 0.8 to 16,000 turns ratio range
  • Touch screen interface
  • Built-in thermal printer
  • Internal memory that can store 10,000 measurements
  • Emergency stop button
  • Easy single button operation
  • Automated range selection
  • Tap change interface and display
  • Can measure PT's and CT's of power transformers
  • Automated detection of vector group
  • Heavy-duty protection system for safe operation
  • Can withstand a drop at a height of 1 meter
  • RS232 and USB interface

If you need basic turns ratio diagnostics, the TR Spy Mark II is sufficient for the application. However, if you need a wider test ratio range and excellent data storage, consider getting the TR Spy Mark III. 

These ratiometers are available from Protec Equipment Resources. We have various test equipment acquisition options you can choose from. We carry electrical test equipment from brands like Megger, GE, Doble Test Equipment, ABB and more. Do not hesitate to call us at 1-866-352-5550 for assistance.

 

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