TTR-I TTR Meter for Three Phase Transformer Testing is designed according IEC76-1 and IEC60044.
TTR-I TTR Meter for Three Phase Transformer Testing can be applied to test the turns ratio and group vector of single or three phase transformer.
The connection group of three phase transformer also can be calculated with the ratio.
All parameters can be measured in one test for three phase transformer.

Functions:

Turns ratio testing: single phase power transformer, three phase power transformer, CT, PT;
Phase angle testing:single phase power transformer, three phase power transformer, CT,PT;
Polarity testing: single phase power transformer, three phase power transformer, CT, PT;
Vector group testing: three phase power transformer;

Features:

1200°C Split-Hinge Tube Furnaces for horizontal use.
Heating element modules for superior radial and linear temperature uniformity and fast heat up and cool down.
Long-life, energy-efficient elements require little or no maintenance.
Mode conversion switch (Test method of IEC 60754-1&2 could be selected).
Alarm Temperature Controller: Temp controller to protect overheating of furnace.
Quartz work tube and sample lading assembly.
pH and conductivity measuring instruments with digital display and electrodes Stirrer.
Mass flow meter control the flow rate of air and digital display.
Activated Charcoal (air filtering): Filter for filtering the supplied air (activated charcoal).
Silica Gel (air drying): Device for drying the supplied air.
100 ceramic sample boats.

No.	Item NameTTR-I Power Transformer Turns Ratio TTR Meter for Three Phase Transformer Testing
1	Ratio measurement range	1-10000
2	Group measurement	1-12
3	Phase measurement error	1 degree
4	Ratio measurement error	1-2000 ± 0.2%RDG 2000-10000 ± 0.5%RDG
5	Test voltage	AC 0~80V continuously, frequency 50Hz
6	Power supply	AC220V ± 10%, 50Hz/60Hz
7	Environment temperature	0-50°C
8	Humidity	≤85%RH
9	Size	400mm350mm200 mm
10	Weight	7kg
11	Length of test cables	8 meters