Vanguard’s ATRT-03, ATRT-03B and ATRT-03B Series 2 Turns-Ratio Testers

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Transformers may not have any moving parts but they should still be checked regularly for defects. The thermal and magnetic stress can cause defects to develop and lead to failure. It is important to assess the winding relationship of the windings regularly to ensure that the transformer is properly converting energy at optimum efficiency. A slight change on the ratio of the windings can cause a lot of trouble in the electrical system.

Winding deformations, core to coil or coil to coil shorts, corrosion and bad terminal connections are some of the common causes of changes in transformer turns-ratio. Preventive maintenance can help detect developing defects so you can correct them before they get out of hand.

The ATRT-03, ATRT-03B and ATRT-03B Series 2 are some of the popular models of turn-ratio testers from Vanguard Test Equipment. These devices are microprocessor-controlled and self-calibrating for accurate measurements. They are engineered to be tough which makes them suitable for the rough conditions of power substation testing.

ATRT-03 Three Phase Turns-Ratio Tester

A second generation Vanguard device that offers the needed features for comprehensive turns-ratio measurement.

Features

  • Automatic testing and calculation of turns-ratio percentage error
  • 20 by 5 backlit LCD screen with excellent contrast and readability
  • Print test results with its 4.5-inch wide thermal printer
  • Internal flash memory that can store 200 turns-ratio, nameplate voltage readings, phase angle, excitation current and 128 test plans
  • 0 to 2 Amperes excitation current range
  • 0 to 360 degrees phase angle range
  • RS232 interface allows connection with a PC for remote testing and exporting of results to Microsoft Excel format
  • Optional control for load tap changer
  • Capable of testing various types of transformers
  • Measures ratio from 0.8 to 15000
  • Selectable 8, 40 and 100 VAC test voltages
  • Weighs 6.4 kg

ATRT-03B Three Phase Turns-Ratio Tester

Similar with the ATRT-03 but lighter and more portable. This meter is easier to carry around, making it a suitable device for outdoor testing.

Features

  • Automatic testing and calculation of turns-ratio percentage error
  • 20 by 5 backlit LCD screen with excellent contrast and readability
  • Print test results with its 4.5-inch wide thermal printer
  • Internal flash memory that can store 200 turns-ratio, nameplate voltage readings, phase angle, excitation current and 128 test plans
  • 0 to 2 Amperes excitation current range
  • 0 to 360 degrees phase angle range
  • RS232 interface allows connection with a PC for remote testing and exporting of results to Microsoft Excel format
  • Optional control for load tap changer
  • Capable of testing various types of transformers
  • Measures ratio from 0.8 to 15000
  • Selectable 8, 40 and 100 VAC test voltages
  • Weighs 5.9 kg

ATRT-03B Series 2 Three Phase Turns-Ratio Tester

A third generation device that is rugged, portable and lightweight. This tester offers a USB flash drive port that allows you to store more test results and for easy transferring of data to a PC. 

Features

  • Automatic testing and calculation of turns-ratio percentage error
  • 64 by 128 dot matrix backlit LCD screen with excellent contrast and readability
  • Print test results with its 4.5-inch wide thermal printer
  • Internal flash memory that can store 112 turns-ratio, nameplate voltage readings, phase angle, excitation current and 128 test plans
  • USB flash drive allows you to store up to 999 test results
  • 0 to 2 Amperes excitation current range
  • 0 to 360 degrees phase angle range
  • RS232 and USB interface lets you connect the tester to a PC for remote testing, results analysis and exporting of results to Microsoft Excel format
  • Control for load tap changer
  • Capable of testing various types of transformers
  • Measures ratio from 0.8 to 15000
  • Selectable 8, 40 and 100 VAC test voltages

For your transformer testing needs, consider Protec. We have a wide selection of electrical test equipment from trusted manufacturers. We add new equipment weekly to our inventory to ensure that availability of the latest testers on the market. Call a Protec specialist today at 1-866-352-5550 to learn about our test equipment acquisition services.