Transformer Turns Ratio Tester

  • JYT-F  turn ratio tester
JYT-F  turn ratio tester

JYT-F turn ratio tester

  • ICE standard
  • MPU control
  • Precise test result
  • LCD touching screen
  • Product description: 8 testing poles for transformer manufactures, also equipped RS485 communication interface and U flash disk memory interface. Wide test range up to 0.9-3000.

When thinking about power transformer testing, transformer turn ratio testing(TTR) ranks number one in the routine maintenance testing for most engineers. Turn ratio testing provides a good starting point for transformer diagnostics.

Demo video for JYT-F:


Figures on display 5 digits
Output voltage AC160V (C) AC10V(D)
Test range 0.9-3000 0.9-200
Accuracy <500 0.1%±2 Figures ≤200 ±0.3%
500-3000 0.2%±2 Figures
>3000 0.5%±2Figures
Minimum resolution 0.0001
Power supply in operation AC220V±10%,50/60Hz±1Hz
Temperature in operation -20~40℃
Relative humidity ≤80%RH,  No forming dew
Volume Length 400mm Width 280mm Height 170mm
Net weight 4.5 kg


1. Fit for distribution transformer to 1000kV transformer

2. JYT-F transformer turn ratio tester has wide test turn ratio range,: up to 0.9-10000.

3. Fast test speed, finishing three-phase test in 9 seconds.

4. Easy find short-circuit among winding by electric current testing function

5. Can test CT,PT,CVT and Z connection of transformers.

6. With blind-test function for testing turn ratio and connection group type of power transformer. 7.Time,date and data saved automatically as power failure.

8. JYT-F transformer turn ratio tester equipped with 480 groups data stored, Large screen display, printing with thermal printer inside, with RS485 communication interface and U flash disk memory interface

9. Protection function from transformer short-circuit, turn-to-turn short-circuit , high-low voltage reverse and misconnection to 380V voltage.

JYT-F transformer turn ratio tester is a professional testing equipment which is suitable for transformer manufacture, transformer service industry, substation maintenance, power transformer /distribution transformer maintenance company and other transformer testing field, Kingrun series turn ratio testers have reliable capability, accurate testing results and long working life, JYT-F transformer turn ratio tester was selected by SIEMENS and ABB transformer manufacture and transformer service companies.