TURA-01, Single-Phase Transformer Turns Ratio Tester

TURA-01 is designed by advanced engineering technology to measure the turns ratio of single and three-phase transformers. TURA-01 has a fast, easy and accurate TTR measurement features for current, voltage and power transformers by its user-friendly software. It?s one of the most accurate devices with its wide range (0.8 to 33,000) ratio measurement capability and high precision (0.08 %).


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).

Download Datasheet



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

Even though it 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 depends on transformer configuration. The operator doesn?t need to search for the connection diagram. It has a wide operations range from high excitation current transformer to high powered power transformer at substation with the 1 V, 4 V, 10 V, 40 V and 100 V AC test voltage generation capability.

4.3-inch colour touch screen 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 Record). With the HighTest Data Management Platform (DMP), the user can control TURA-01 and analyse measurement results. Operators can easily print the measurement results with 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 staffs. By using the optional TPA-03 Three Phase Adapter, 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).


Measurement Parameters Turn Ratio Measurement, Excitation Current, Phase Angle, Polarity, Ratio Error (%)
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 ? 33,000
Accuracy Mode Ratio Accuracy
CT Mode (1V -4 V) 0.8-399 0.08 %
400-4000 0.1 %
PT Mode (10 V- 100 V) 0.8-5000 0.08 %
5001-12000 0.15 %
12001-33000 0.5 %
Phase Angle Measurement 0-360 Degree
Excitation Current 1 A
Power Supply 85-240 V 50/60 Hz 14.4 V 3.6 Ah built-in battery
Memory Up to 100 records (include up to 25 tap results)
Printer 2.25-inch Built-in Printer
Communication USB, Flash Drive, Bluetooth (Option)
PC Software DMP Software
Display 4.3-inch colour 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 +50 ?C
Protection Class IP67 (case closed)
Cables 15 feet (4.5 m) Cable Set
Set of Package TURA-01, Power Cable, 2 Printer Paper, USB Cable, 15 feet Cable, Ground Cable
Options Carrying case, TPA-03 Three Phase Adapter, Bluetooth

Specifications are valid under 25 ?C temperature. *Contents subject to change without notice.

Version V02B 11/2019

TURA-01 Connection

TURA-01 Connection Diagram

TURA-01 with TPA-03

TURA-01&TPA-03 Connection Diagram
TURA-01, Single-Phase Transformer Turns Ratio Tester