Project Description

TURA-03 SERIES Brochure EN

TURA-03 is designed using advanced engineering technology to measure the turns ratio of single-phase and three-phase transformers. TURA-03 has fast, easy and accurate TTR measurement features for current, voltage and power transformers using its user-friendly software. By using ANSI/IEEE C57.12.90 measurement method TURA-03 can produce precise results.

TURA-03 is one of the most accurate devices with its wide range (0.8 to 50,000) ratio measurement capability and high precision (0.08 %). Besides the ratio measurement, TURA-03 can also measure excitation current, phase angle, polarity, and ratio error. Even though TURA-03 has three-phase cable configuration, users can also make single-phase transformer tests. TURA-03 can detect vector groups automatically. TURA-03 has a wide operation range from high excitation value current transformer to high powered power transformer at substations with the 1V, 4V, 10V, 40V, 100V and 250V AC test voltage generation capability.

A 7-inch colour touch display allows TURA-03 to show all measurement results on a single screen. USB, Bluetooth (Option) and Flash Memory features allow TURA-03 to control, record and store measurement results (up to 100 Test Records). With the HighTest Data Management Platform (DMP Software), users can control TURA-03 and analyse measurement results. Operators can easily print the measurement results with the 2.28-inch built-in Printer of TURA-03. Multi-language capability and user-friendly operation menu make it easy to control TURA-03, even by less trained staff.

TURA-03 can control tap changer (raise and lower) via its tap changer outputs. TURA-03 is a light, compact and rugged device with the protection of IP67 (case closed).

In addition to ratio tests, TURA-03 can be used to perform Magnetic Balance Test as well.


  • Turns Ratio Measurement
  • (Single-phase and three-phase measurement)
  • Ranges from 0.8 to 50,000 ratio measurement
  • High Accuracy (0.08 %)
  • 1V, 4V, 10V, 40V, 100V and 250V AC test voltage
  • Ratio Error Measurement
  • Magnetic Balance Test
  • Excitation Current, Phase Angle, Polarity Measurement
  • Built-in Printer
  • Automatic vector group detection feature
  • Internal memory, USB Flash Drive
  • PC control via USB cable
  • Optional Bluetooth control and communication
  • 7-inch large colour touch display

Technical Features

Measurement Parameters Turns Ratio Measurement, Excitation Current, Phase Angle, Polarity, Ratio Error (%), Vector group detection, Magnetic Balance
Ratio Measurement Modes CT Mode, PT Mode (Single-Phase and Three-Phase)
Measurement Method ANSI/IEEE C57.12
Test Voltages CT Mode: 1 V and 4 V

PT Mode: 1, 4, 10, 40, 100, 250 V

Ratio Range 0.8 – 50,000
Accuracy Mode Ratio Accuracy
CT Mode (1V -4 V) 0.8000 – 399.99 0.08 %
400.00 – 4000.0 0.1  %
PT Mode(10 V- 250 V) 0.8000 – 5000.0 0.08 %
5000.1 – 12000 0.15 %
12001 – 50000 0.5 %
Phase Angle Measurement 0-360 Degree
Excitation Current 2 A
Accuracy Range Resolution Accuracy
Up to 1.0000 mA 0.2 μA 0.25 % rdg ± 500 μA
1.0000 mA to 10.000 mA 1 μA 0.25 % rdg ± 500 μA
10.000 mA to 100.00 mA 10 μA 0.25 % rdg ± 500 μA
100.00 mA to 2000.0 mA 100 μA 0.25 % rdg ± 500 μA
Power Supply 100-240 V 47/63 Hz
Battery Yes, 14.4 V 3.45 Ah Optional (Models: TURA-03B, TURA-03B BLUE)
Memory 102 records (include up to 25 tap results)
Printer 2.28-inch Printer
Communication USB 2.0/1.1 Standard-A, USB 2.0/1.1 Standard-B, Bluetooth (factory install option)
PC Software DMP Software
Display 7-inch Colour Touch Display
Dimensions 16.7″ x 13.4″ x 6.8″  (424 mm x 340 mm x 173 mm )
Weight 7.1 kg
Working Temperature -10 °C to +60 °C
Protection Class IP67 (case closed)
Set of Package TURA-03, Power Cable, Ground Cable , 5m Standard Test Cable Set, 10m Extension Cable Set, Tap Changer Cable Set, USB Cable, Printer Paper (x2), USB flash drive, Instruction Manual (Soft Copy), DMP Software, Cable Bag
Options Hard Carrying Case, Bluetooth (factory install option), Battery