Frequency conversion transformer comprehensive tester DYBP-II

1、 Product introduction

DYBP-II transformer comprehensive tester is a new generation of current and voltage transformer testing instrument developed by our company after widely listening to users' opinions, conducting a lot of market research and in-depth theoretical research. The device adopts high-performance DSP, ARM and advanced manufacturing technology, which ensures stable and reliable product performance, complete functions, high degree of automation, high testing efficiency, and is at the leading level in China. It is a professional testing instrument for transformers in the power industry.

2、 Product characteristics

★ 1. CT can test the following items: load impedance of secondary circuit; Secondary winding resistance (Rct); Test CT excitation characteristic test; Automatically calculate the inflection point; Automatically draw 5% and 10% error curves; Ratio difference and angle difference; Accuracy limit coefficient; Instrument security factor; Residual magnetism coefficient Kr; Secondary time constant Ts; Unsaturated inductance Lu; Saturated inductance Ls; Transient area coefficient Ktd; Peak instantaneous error; Composite error;

★ 2. PT can test the following items: polarity; Transformation ratio; Excitation characteristics; Load impedance;

★ 3. It has demagnetization function;

★ 4. It has comprehensive functions, which can not only meet the requirements for testing the excitation characteristics (i.e. volt ampere characteristics), transformation ratio, polarity, secondary winding resistance, secondary load, ratio difference and angle difference of various CT (such as protection, metering and TP), but also be used for testing the excitation characteristics, transformation ratio, polarity, secondary winding resistance, ratio difference and angle difference of various PT electromagnetic units.

★ 5. Automatically provide inflection point voltage/current, 10% (5%) error curve, accuracy limit factor (ALF), instrument security factor (FS), secondary time constant (Ts), remanence coefficient (Kr), saturated and unsaturated inductance and other CT and PT parameters.

★ 6. The test shall meet various transformer standards such as GB1208 (IEC60044-1), GB16847 (IEC60044-6) and GB1207, and the test shall be conducted automatically according to the type and level of the transformer.

★ 7. Based on the advanced low frequency method testing principle, it can handle CT testing with inflection point up to 45KV.

★ 8. The interface is friendly and beautiful, with a Chinese graphic interface.

★ 9. The device can store 2000 groups of test data without loss in case of power failure. After the test, store the USB flash disk into the PC, analyze the data with software, and generate a WORD report.

★ 10. The test is simple and convenient. One click completes CT DC resistance, excitation, transformation ratio and polarity tests. Besides the load test, all other CT tests adopt the same wiring mode.

★ 11. It is easy to carry, and the weight of the device is less than 9Kg.