3Phase Transformer - Turns Ratio Tester TRT03

TRT03 is a three-phase, fully automatic test set specially designed for turns ratio, phase shift, and excitation current measurements of power, distribution and instrument transformers. TRT03 determines the transformer turns ratio by applying voltages across high voltage windings, accurately measuring voltages across the unloaded transformer windings, and then displaying the ratio of these voltages. 

Features
Test voltages from 8 to 100 V AC
Turns ratio range 0,8 50 000
The best turns ratio accuracy of 0,05%
Single-phase test voltage
Automatic vector group detection
Built-in tap changer control unit
Detailed analysis of test results using DV-Win software
Interchangeable test leads with Three-phase Winding Ohmmeters & Tap
Changer Analyzers TWA
  TRT03A TRT03B TRT03C
TEST VOLTAGES (8,40,100) V AC (10,40,100) V AC (8,40,80) V AC
RATIO RANGE 0,8 to 50 000
(5-digit Resolution)
0,8 to 50 000
(5-digit Resolution)
0,8 to 50 000
(5-digit Resolution)
BEST RATIO ACCURACY 0,05 % 0,05 % 0,05 %
EXCIT. CURRENT RANGE 0 2 A 0 2 A 0 2 A
EXCIT. CURR. ACCURACY (0,25% + 500 A) (0,25% + 500 A) (0,25% + 500 A)
BEST EXCIT. CURR. RESOLUTION 0,1 A 0,1 A 0,1 A
PHASE ANGLE RANGE 360 Degrees 360 Degrees 360 Degrees
PHASE ANGLE ACCURACY 0,05 Degrees 0,05 Degrees 0,05 Degrees
PHASE ANGLE RESOLUTION 0,01 Degree 0,01 Degree 0,01 Degree
USB FLASH DRIVE FEATURE yes yes yes
BUILT-IN TC CONTROL yes yes yes
BUILT-IN THERMAL PRINTER OPTIONAL OPTIONAL OPTIONAL