Project Description

TURA-01, 100V Single-Phase Transformer Turns Ratio Tester with Printer

TURA-01 Brochures

TURA-01 is designed using advanced engineering technology to measure the turns ratio of single-phase and three-phase transformers. TURA-01 has fast, easy and accurate TTR 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, the user can make three-phase transformer tests. TURA-01 can show all kinds of connection diagrams on display which can change depending on transformer configuration. The operator doesn’t need to search for a connection diagram. TURA-01 has a wide operation range from high excitation current transformer to high powered power transformer at substations with the 1V, 4V, 10V, 40 V and 100 V AC test voltage generation capability.

A 4.3-inch 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 HighTest Data Management Platform (DMP Software), users can control TURA-01 and analyse measurement results. Operators can easily print the measurement results with the 2.25-inch built-in Printer of TURA-01. Multi-language capability and user-friendly operation menu make it easy to control TURA-01, even by less trained staff.

By using the optional TPA-03 Three Phase Adapter, the user can make 3-phase connection and can test all phases simultaneously.

TURA-01 is a light, compact and rugged device with the protection of IP67 (case 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 voltage
  • Ratio error measurement
  • Excitation current, phase angle, polarity measurement
  • Built-in printer
  • Internal memory, USB Flash Drive
  • PC control via USB cable
  • Optional Bluetooth control and communication
  • 4.3-inch large colour touch display
  • Optional expansion feature with Three- Phase Adapter (TPA-03)

Technical Specifications

Measurement Parameters Turns Ratio Measurement, Excitation Current, Phase Angle, Polarity, Ratio Error (%),   Magnetic Balance (Required 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
Measurement Method ANSI/IEEE C57.12.90
Ratio Range 0.8 – 33,000
Ratio Resolution 5 Digits
Accuracy Mode Ratio  Accuracy
CT Mode (1V -4 V) 0.8-399
0.08 %
0.1 %
PT Mode (10 V- 100 V) 0.8-5000
0.08 %
0.15 %
0.5 %
Phase Angle Measurement 0-360 Degree, ±0.2 degree (±1 digit)
Excitation Current 2 A, 2 % of reading (±1 mA)
Power Supply 100 – 240 V 47/63 Hz
Battery 14.4 V 3.45 Ah built-in battery
Memory Up to 100 records (include up to 25 tap results)
Printer 2.25-inch built-in printer
Communication USB 2.0/1.1 Standard-A, USB 2.0/1.1 Standard-B, Bluetooth (Model: TURA-01 BLUE)
PC Software DMP Software
Display 4.3-inch TFT touch display
Dimensions 12.5″ x 10.1″ x 6.0″  (318 mm x 257 mm x 152 mm )
Weight 3.8 kg
Working Temperature -10 °C to +60 °C
Storage Temperature -30 °C to +70 °C
Humidity 95% RH non condensing
Protection Class IP67 (case closed)
Set of Package TURA-01, Power Cable, Ground Cable , 5 m Standard Test Cable Set, USB Cable, Printer Paper (x2), USB flash drive, Instruction Manual (Soft Copy), DMP Software, Soft Carrying Case
Options Carrying Case, TPA-03 Three-Phase Adapter, Bluetooth (factory-install option), 10 m Extension Cable

TURA-01 Connection DiagramTURA-01 Connection

TURA-01 with TPA-03

TURA-01&TPA-03 Connection Diagram