Single-Phase Transformer Turns Ratio Tester

TURA-01; Device for measuring the transformation ratio in single-phase transformers, with integrated battery and printer / Ratio meter


  • Measurement 0.8 to 33,000 Ratio
  • Test Voltage 1 V to 100 V
  • High Accuracy 0.08%

TURA-01 is designed using advanced engineering technology to measure the turns ratio of single-phase and three-phase transformers.

TURA-01 has easy, fast and accurate turns ratio measurement features for current, voltage and power transformers using its user-friendly software.

TURA-01 is one of the most accurate devices with its wide range (0.8 to 33,000) ratio measurement capability and high precision (0.08 %).

Besides the ratio measurement, TURA-01 can also measure excitation current, phase angle, polarity, and ratio error.

Even though TURA-01 has a single-phase cable configuration, users can make three-phase transformer tests as well.

TURA-01 can show all kinds of connection diagrams on its display which can change depending on transformer configuration. The operator doesn’t need to search for any connection diagram.

TURA-01 has a wide operation range from high excitation current transformers to high powered power transformers at substations with the 1V, 4V, 10V, 40 V and 100 V AC test voltage generation capability.

A 4.3-inch TFT touch display allows TURA-01 to show all measurement results on a single screen.

USB, Bluetooth (Option) and Flash Memory features allow TURA-01 to control, record and store measurement results (up to 100 Test Records).

With the Data Management Platform (DMP Software), users can control TURA-01 and analyse measurement results on PC.

Operators can easily print the measurement results with the 2.25-inch built-in Printer.

Multi-language capability and user-friendly operation menu make it easy to control TURA-01, even by less experienced staff.

Using the optional TPA-03 Three-Phase Adapter, users can make three-phase connections and test all phases simultaneously.

TURA-01 is a light, compact and rugged device with the protection class IP67 (housing closed).


  • Turns Ratio Measurement
  • (Single-phase and three-phase measurement)
  • Ranges from 0.8 to 33,000 Ratio Measurement
  • High Accuracy (0.08 %)
  • 1V, 4V, 10V, 40 V and 100 V AC Test Voltages
  • Ratio Error Measurement
  • Excitation current, phase angle, polarity measurement
  • Magnetic Balance (Required TPA-03)
  • Built-in Battery & Printer
  • Internal memory, USB Flash Drive
  • PC control via USB cable
  • Optional Bluetooth control and communication
  • 4.3-inch TFT touch display
  • Expansion feature with optional accessory TPA-03 (Three-Phase Adapter)


Ordering Information

TURA-01 Single-Phase Transformer Turns Ratio Tester with Built-in Battery & Printer

TURA-01 BLUE Single-Phase Transformer Turns Ratio Tester with Built-in Battery, Bluetooth & Printer

Measurement Parameters

Turns Ratio Measurement, Excitation Current, Phase Angle, Polarity, Ratio Error (%),   Magnetic Balance (Required optional TPA-03)

Ratio Measurement Modes

CT Mode, PT Mode (Single-Phase and Three-Phase)

Test Voltages

CT Mode: 1 V and 4 V

PT Mode: 1, 4, 10, 40, 100 V

Ratio Range

0,8 – 33000





CT Mode (1V - 4 V)

0,80 - 399

0,08 %

400 - 4000

0,1 %

PT Mode (10 V - 100 V)

0,80 - 5000

0,08 %

5001 - 12000

0,15 %

12001 - 33000

0,5 %

Phase Angle Measurement

0 - 360 Degrees

Excitation Current

2 A

Power Supply

100 – 240 V 47/63 Hz

Built-in battery

Yes, 14,4 V 3,6 Ah


Up to 100 records (include up to 25 tap results)


2.25-inch built-in printer


USB 2.0/1.1 Standard-A, USB 2.0/1.1 Standard-B, Bluetooth (Model: TURA-01 BLUE)

PC Software

DMP Software 


4.3-inch TFT touch display


318 mm x 257 mm x 152 mm


3.8 kg

Operating Temperature

-10 °C ... +60 °C

Protection Class

IP67 (closed housing)


5 m (16.4 ft.) standard test cable set

Set of Package

TURA-01, Power Cable, Ground Cable , 5 m 816.4 ft.) Standard Test Cable Set, USB Cable, Printer Paper (x2), USB flash drive, Instruction Manual (Soft Copy), DMP Software, Soft Carrying Case


Carrying Case, TPA-03 Three-Phase Adapter, Bluetooth (factory-install option)

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