Transformer Turns Ratio Tester

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

JYT- F Transformer turn ratio tester

  • ICE standard
  • MPU control
  • Precise test result
  • LCD touching screen
  • Product description: JYT-F transformer turn ratio tester with 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 transformer testing, turn ratio test(TTR) ranks number one in the routine maintenance testing for most engineers.  It provides a good starting point for transformer diagnostics, in that it tests that the transformer is doing what it is supposed to do.

Demo video for JYT-F:


1. Fit for distribution transformer to 1000KV transformer

2. 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. 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 Power transformer turn ratio tester (turn ratio meter)is a professional testing equipment which is suitable for transformer service industry, substation maintenance, power transformer /distribution transformer maintenance company, 3 phase transformer turn ratio testing, and other transformer testing field, Kingrun series tun ratio tester such as JYT-F and JYT-A tester has reliable capability and accurate testing result selected by SIEMENS and ABB transformer manufacture and transformer service companies.

High performance of MPU (microprocessor) can provide high precise data and fast calculation:

LCD touch color screen provide clear display for all tested value.

Thermosensitive printer provide fast and clear tested value printing.

JYT-F turn ratio tester supply RS485 and USB interface for data transmission.

JYT-F turn ratio tester's testing clips are made from pure copper with punch forming , the surface is nickel plating, the handle is insulating, the testing clip is safe, easy handling and well connection (13Meters).

We supply a infrared temperature measuring gun with tester for free!


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