The transformer turns ratio(TTR) test is one of the fundamental transformer routine tests declared defined in 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 turns ratio tester Demo Video:
JYT-F turns ratio tester Function:
1. Fit for distribution transformer to 1000kV transformer
2. JYT-F transformer turns ratio tester has wide test turns ratio range up to 0.9-10000.
3. Able to perform a three-phase test in 6 seconds.
4. asy to find short-circuit in windings via current-injection function
5. Can test CT, PT,CVT and Z connection of transformers.
6. With blind-test function for testing turns 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 turns ratio tester is a professional testing equipment which is suitable for transformer manufactures, transformer service industries, substation maintenance companies, power transformer /distribution transformer maintenance companies and other transformer testing fields, Kingrun series turns 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 digit LCD display
Output Voltage
AC160V
AC10V
Auto (powered by DC Battery)
Ratio Range
0.9 -10,000
0.9 - 500
0.9 - 5000
Accuracy
<500
0.1% ±2 digits
≤150
0.1% ±2 digits
≤1000
0.1% ±2 digits
500-2000
0.2% ±2 digits
150- 500
0.3% ±2 digits
1000-5000
0.3% ±2 digits
>2000
0.3% ±2 digits
Minimum Resolution
0.0001
Rechargeable lithium battery
Power Supply in Operation
AC220V±10%,50Hz±1Hz
Stored Test Data
50 groups
Operation inTemperature
-20℃~+40℃
Relative Humidity
≤80%RH, non-condensing
Volume / Weight
Length 395mm Width 240mm Height 250mm / 6 kg
JYT-F Transformer Turns Ratio Testing Connection:
JYT-F select series NEC Microprocessor to make sure high testing accuracy.
Kingrun Transformer Instrument Co.,Ltd.
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