Comprehensive tester for variable frequency transformer

HNLC-709 frequency transformer comprehensive testeris a new generation of innovative CT, PT test instrument developed on the basis of traditional transformer voltage-ampere characteristic ratio polarity comprehensive tester based on voltage regulator, booster and current booster, widely listening to user opinions, after a large number of market research and in-depth theoretical research.
HNLC-709 Frequency Conversion Transformer Comprehensive Testeris a multifunctional field test instrument specially designed for testing transformer: volt-ampere characteristics, transformation ratio, polarity, error curve, angle difference ratio difference, calculation inflection point and secondary side loop inspection, etc. It supports the detection of CT and PT (protection class, measurement class, TP class) steady state and instantaneous parameters.

product characteristics

 1. Based on advanced frequency conversion method to test CT/PT volt-ampere characteristic curve and 10% error curve, the output voltage is only 180V AC voltage and 12A AC current, but it can cope with CT test with inflection point up to 30KV.
   2, with current boost output function, with current booster * large current up to 150A.
   3. Comprehensive function, it can be used for steady-state or transient characteristics test of excitation, transformation ratio, phase, polarity, secondary winding resistance, load, ratio difference and angle difference of various types of CT and PT.
   4, automatically gives the inflection point voltage/current, 10% error curve, 5% error curve, accuracy limit coefficient (ALF), instrument safety coefficient (FS), quadratic time constant (Ts), residual magnetism coefficient (Kr), accuracy level, saturation and unsaturated inductance and other parameters.
   5. CT and PT can be tested and calculated according to different standards such as GB1208-2006(IEC60044-1) and GB16847-1997(IEC60044-6).
   6. Friendly and beautiful interface, full Chinese graphic interface, 5.7-inch graphic transflective LCD, visible under sunlight.
    7, the use of rotary photoelectric mouse operation, simple operation, fast and convenient, easy to master.
   8, the device can store 3000 sets of test data, power failure does not lose. After the test, the data can be called up for analysis, or uploaded to PC through USB flash disk to generate WORD report.
   9. The panel has its own printer, which can automatically print the generated test report.
   10, test convenience, except for load test, other tests are based on the same wiring. Easy to carry, unit weight 9Kg.

Product nickname

technical parameters

HNLC-709 frequency transformer comprehensive testerdevice is designed for the following tests of CT and PT:

1. Excitation characteristic test,

2, ratio test

3. Phase and polarity test

4. Measurement of ratio difference and angle difference of CT under various primary currents and various loads

5, CT secondary winding resistance measurement

6, CT secondary circuit load measurement

7. Test and Analysis of CT Transient Characteristics

8, CT upflow test

9. Measure and check CT and PT of various models, including protection CT, measurement CT, TP transient CT, CT with excitation saturation voltage up to 30KV, transformer bushing CT, PT of various voltage levels, etc.

10, inflection voltage/current, 10%(5%) error curve, accuracy limit coefficient, instrument safety coefficient, quadratic time constant, residual magnetism coefficient, accuracy level, saturation and unsaturated inductance and other CT, PT parameter measurement

Output voltage: 0~180V (RMS)

Output current: 0~12A (RMS), peak value 36A

Voltage measurement: Accuracy: 0.2%

CT ratio measurement range: 1~30000

PT ratio measurement range: 1~10000

Ratio measurement: Accuracy: 0.2%

Phase measurement: Accuracy: 5, Resolution: 0.5’

Secondary winding resistance measurement range: 0.1~300 Resolution: 0.2m Accuracy: 0.2% 2 mΩ

AC load measurement: 0~300VA Resolution: 0.002 VA Accuracy: 0.2% 0.02 VA

Current output: 0~150A

Input power supply voltage: AC220V 20%, 50Hz

Working conditions: temperature: -10℃~50℃,   humidity:≤ 90%
Wuhan Huaneng Lianchuang Electric Co., Ltd.