The transformer turns ratio(TTR) test is one of the fundamental transformer routine tests declared by both IEC 60076-1 and IEEE C57.12.90. The transformation ratio test of the transformer is a test to verify whether the transformer can achieve the specified voltage conversion effect and whether the transformation ratio conforms to the technical conditions of the transformer or the value specified on the nameplate. The purpose is to check whether the number of turns of each winding, the assembly of lead wires, and the indication position of the tap changer meet the requirements; The parallel operation of small and medium-sized transformers with a ratio difference of 1% will generate a circulating current of 10% of the rated current in the transformer windings, which will greatly increase the loss of the transformer and be detrimental to the operation of the transformer.
JYT-F turn ratio tester Demo Video:
JYT-F turns ratio tester Function:
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 6 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 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 mis-connection to 380V voltage.
JYT-F 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, it was selected by SIEMENS and ABB transformer manufacture and transformer service companies.
JYT-F Technology Specification:
Type
JYT-F
Figures on display
5 Five figure
Output voltage
AC160V
AV10V
Auto (DC battery)
Test range
0.9 -10000
0.9 - 500
0.9 - 5000
Accuracy
<500
0.1% ±2 Character
≤150
0.1% ±2 Character
≤1000
0.1% ±2 Character
500-2000
0.2% ±2 Character
150- 500
0.3% ±2 Character
1000-5000
0.3% ±2 Character
>2000
0.3% ±2Character
Minimum resolution
0.0001
Rechargeable lithium battery
Power supply in operation
AC220V±10%,50Hz±1Hz
Test storied data
50 Groups
Temperature in operation
-20~40℃
Relative humidity
≤80%RH, No forming dew
Volume / Weight
Length 395mm Width 240mm Height 250mm / 6 kgs
JYT-F Transformer Turns Ratio Testing Connection:
JYT-F select series NEC Microprocessor to make sure high testing accuracy.
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DC winding resistance tester with 500 times tests on a single charge -JYR9310
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