Project Description

TURA-03, 250V Three-Phase Transformer TTR with Built-in Printer

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 a 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 a 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 the tap changer (raise and lower) via its tap changer outputs (OLTC Control). 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 the 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
  • Optional 1V, 4V, 8V, 10V, 40V, 100V and 250V AC test voltage
  • Ratio Error Measurement
  • Magnetic Balance Test
  • Excitation Current, Phase Angle, Polarity Measurement
  • OLTC Control
  • 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 and 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
Optional Test Voltages 1, 4, 8, 10, 40, 100, 250 V
Ratio Range 0.8 – 50,000 ; Resolution : 5 digits
Phase Angle Measurement 0-360 Degree; Accuracy  : ±0.2 degree
Excitation Current 0 to 2A
Excitation Current Accuracy ±0.1mA
Power Supply 100-240 V, 47/63 Hz
Battery 14.4 V 3.6 Ah, Optional (Models: TURA-03B & TURA-03B BLUE)
Memory Up to 102 records (include up to 25 tap results), Unlimited Storage using an external USB
Printer 2.28-inch built-in printer
Communication USB 2.0/1.1 Standard-A, USB 2.0/1.1 Standard-B; Optional Bluetooth (Models: TURA-03 BLUE & TURA-03B BLUE)
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
Storage Temperature -30 °C to +70 °C
Humidity 95% RH Non-condensing
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 (refer to the ordering info), Battery(refer to the  ordering info)
Ordering Information TURA-03, 250V Three-Phase Transformer Turns Ratio Tester with Built-in Printer
TURA-03 BLUE, 250V Three-Phase Transformer Turns Ratio Tester with Built-in Bluetooth & Printer
TURA-03B, 250V Three-Phase Transformer Turns Ratio Tester with Built-in Battery  & Printer
TURA-03B BLUE, 250V Three-Phase Transformer Turns Ratio Tester with Built-in  Battery,  Bluetooth & Printer