Trt63a

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True Three-Phase Transformer Turns Ratio Tester TRT63A
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Test voltages 1 V, 8 V, 40 V, 100 V, 250 V AC

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Ratio range 0,8 – 50 000

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The best accuracy of 0,03%

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Measurement of turns ratio

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Measurement of phase shift

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Measurement of excitation current

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Three-phase and single-phase test

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Automatic vector group detection

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Detailed analysis of test results using DV-Win software

Description
TRT63A is a true three-phase, fully automatic test set specially designed for turns ratio, phase shift and
excitation current measurements of power, distribution and instrument transformers. TRT63A
determines the transformer turns ratio by accurately measuring the voltages across the unloaded
transformer windings and then displaying the ratio of these voltages (ratios range from 0,8 to 50 000).
TRT63A is based on a state of the art technology, using the most advanced technique available today.
The test set can be used to test single-phase and three-phase transformers, both with and without taps
in accordance with the requirements of the IEC 60076-1 standard.
For a three-phase measurement, the test set is connected to all the three phases of a transformer to be
tested. If specific vector diagrams are selected for different types of transformers, the TRT63A will run a
specific test for each transformer type (i.e., single phase, Delta to y, Y to delta, Delta to delta, or Y to y)
without a need to switch the test hookup cables. It displays a turns ratio, phase shift and excitation
current, obtained with true three-phase and single-phase tests. With the AVGD test, TRT63A can
automatically detect vector group of a transformer.
TRT63A lets users enter a transformer’s nameplate voltages for the turns ratio deviation calculation.
This feature eliminates any error otherwise caused by an operator’s manual calculation. The TRT63A
also compares the test result with the calculated ratio and prints out the % of error for each test. It is
easy to read the instruments display and easy to follow the menu. There is enough memory in the
TRT63A to store 100 test records. Each record consists of 100 test readings. All measurements are
time and date stamped. The measurements can be printed on an optional built-in thermal printer using
the Print button.
The transformer excitation current, as well as the phase angles, help to detect transformer's shorted
turns or unequal number of turns connected in parallel. Operating conditions messages or error
messages identify incorrect test conditions, abnormal operating condition or winding problems.
TRT63A has a very high ability to cancel electrostatic and electromagnetic interference in HV electric
fields. It is achieved by a very efficient filtration. The filtration is made utilizing the proprietary hardware
and software design solutions.

B-T063AN-208-EN

TRT63A Brochure 1

True Three-Phase Transformer Turns Ratio Tester TRT63A

Application
The TRT63A is programmed to automatically test turns ratio, phase shift and excitation current of
power, distribution and instrument transformer types defined by CEI/IEC standards.

Connecting a test object to TRT63A

Features
Thermal printer (built-in 112 mm wide)
Numeric printout of test results
Mains power supply input
90 V – 264 V AC; 50 Hz – 60 Hz
H terminals
Used for connecting
H cable set

PC communication
USB interface

X terminals
Used for connecting
X cable set

Flash drive
Used for direct download of
test results on a USB
memory stick

Emergency stop
button
Used for stopping the
test in case of an
emergency

Grounding
Used for grounding TRT63A

TC Control
Used for remote controlling of
a Tap Changer
Alphanumeric keypad
Used for entering transformer data

B-T063AN-208-EN

LCD Screen
20 Characters by 4
Lines; LCD display
with backlight, visible
in bright sunlight

TRT63A Brochure 2

True Three-Phase Transformer Turns Ratio Tester TRT63A

DV-Win software
DV-Win software has the following features:
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Full control of TRT63A functions from a PC.
Creating and storing test plans.
Download test results from the instrument.
Acquisition and analysis of test results.
Graphical display of test results.
Creating reports including numerical and graphical data.
Test results can be viewed, edited, saved, printed and
exported.
Zoom and pan graph feature.

Accessories
Included

Recommended

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DV-Win PC software
Ground cable
USB cable
Built-in Tap Changer Control Unit
Tap Changer Control cable set 5 m

H winding test lead set, 4 x 10 m with TTA clamps
X winding test lead set, 4 x 10 m with TTA clamps
Cable plastic case – large size

Optional
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Built-in thermal printer 112 mm
Thermal paper roll
Cable plastic case with wheels – large size
Cable plastic case – medium size
Cable plastic case with wheels – medium size
Transport case
Bluetooth communication module
Inverter 12 V DC to 230 V AC, 50 Hz
H winding test lead set, 4 x 5 m with TTA clamps
X winding test lead set, 4 x 5 m with TTA clamps
H winding test lead set, 4 x 15 m with TTA clamps
X winding test lead set, 4 x 15 m with TTA clamps
H winding test lead set, 4 x 20 m with TTA clamps
X winding test lead set, 4 x 20 m with TTA clamps
H winding cable extension set, 4 x 5 m
X winding cable extension set, 4 x 5 m
H winding cable extension set, 4 x 10 m
X winding cable extension set, 4 x 10 m
TRTC Verification Calibrator with associated cables

H winding test lead set with TTA
clamps*

X winding test lead set with TTA
clamps*

Cable plastic case

*The above cables are also available in several lengths.
Please contact DV Power for more information.
B-T063AN-208-EN

TRT63A Brochure 3

True Three-Phase Transformer Turns Ratio Tester TRT63A

Technical Data
Mains Power Supply
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Connection:
Mains supply:
Frequency:
Input power:
Fuse:

according to IEC/EN60320-1; UL498, CSA 22.2
90 – 264 V AC, or 110 – 350 V DC
50/60 Hz
250 VA
2 A / 250 V, type F, but not user replaceable

Output Data
 Test voltage

1 V, 8 V, 40 V, 100 V, 250 V AC
3 x (1, 8, 40, 100, 250)3 V AC

Measurement
0,8 – 50 000 (5-digit resolution)

 Ratio measuring range
 Typical ratio accuracy:

@250 V AC

@100 V AC

@40 V AC

@8 V AC

@1 V AC

0,8 – 999: ±0,03%

0,8 – 999: ±0,05%

0,8 – 999: ±0,05%

0,8 – 999: ±0,05%

0,8 – 999: ±0,05%

1000 – 3999: ±0,05%

1000 – 3999: ±0,05%

1000 – 3999: ±0,1%

1000 – 3999: ±0,1%

1000 – 3999: ±0,1%

4000 – 14999: ±0,05%

4000 – 14999: ±0,1%

4000 – 14999: ±0,2%

4000 – 14999: ±0,2%

15000 – 19999: ±0,05% 15000 – 19999: ±0,2%
20000 – 50000: ±0,1%

15000 – 19999: ±0,3%

20000 – 50000: ±0,25%
0–2A
± (0,25% + 500 μA)

 Excitation current range
 Typical excitation current accuracy
 Excitation current resolution:

0 – 9,9999 mA
10 – 99,999 mA
100 – 999,99 mA
1–2A

0,1 μA
1 μA
10 μA
100 μA

 Phase angle range
 Typical phase angle accuracy
 Phase angle resolution

360º
±0,05º
0,01º

Display
 LCD screen 20 characters by 4 lines; LCD display with backlight, visible in bright sunlight

Interface
 TRT63A is equipped with a USB port to connect to an external computer
 TRT63A is equipped with a USB flash drive to export results to USB memory stick

Test Result Storage
 TRT63A can store up to 10 000 test results

Environmental conditions
-10 ºC – + 55 ºC / 14 ºF – +131 ºF
-40 ºC – + 70ºC / -40 ºF – +158 ºF
5 % – 95 % relative humidity, non condensing

 Operating temperature:
 Storage & transportation:
 Humidity:

Dimensions and weight
 Dimensions (W x H x D)
 Weight

480 x 197 x 395 mm / 18.9 x 7.75 x 15.55 in
9 kg / 19.8 lbs

Applicable Standards
 Installation/Overvoltage category:
 Pollution degree:
 Safety
 EMC

II
2
LVD 2006/95/EC (CE Conform)
Standard EN 61010-1:2001
Directive 2004/108/EC (CE Conform)
Standard EN 61326-1:2006

All specifications herein are valid at ambient temperature of + 25 °C and recommended accessories.
Specifications are subject to change without notice.
IBEKO Power AB

Contact
phone: +46 70 0925 000
sales@dv-power.com

Address
Stockholmsvägen 18
181 50 Lidingö, Sweden
TRT63A Brochure 4



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