Transformer Ratio and Group Tester - Yangzhou Dary
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1, Transformer Ratio and Group Tester True three-phase test: single-phase power input, internal digital synthesis of three-phase standard sine wave signal source, through high-fidelity power amplifier, generates three-phase test power (distortion less than 0.1%, symmetry better than 0.05%) output, test results have better equivalence, and will not appeargroup misjudgment and other phenomena.
2, Powerful functions: it can not only perform single-phase measurement, but also realize automatic testing of three-phase windings. Both single-phase and three-phase can measure polarity and phase angle, and complete the measurement of AB, BC, CA three-phase ratio, phase angle, error, tap position, tap value and other parameters at one time, and can automatically identify the group number(0～11 equivalent to 1～12).
3, Phase angle measurement function: accurately measure the phase angle between high and low voltage sides (0～360°), and can measure the ratio and angle of non-integral-point transformers.
4, Six-phase diagram display function: test results are displayed in digital and six-phase vector diagrams, intuitively showing the transformer connection group situation.
5, Blind test function: no need to select wiring mode, no need to select wiring group, measurement of Y/△, △/Y transformers without external short circuit, can automatically switch wiring mode according to the selected test content. It can measure the ratio and group number of transformers without nameplates.
6, Tap test: can quickly measure the ratio and ratio error at each tap switch position. The rated ratio only needs to be input once, and the ratio error at each tap position can be calculated without repeated input.
7, It also has two functions: turns ratio measurement and operating voltage ratio measurement. The operating ratio can more truly reflect the actual value of the voltage ratio when the transformer is in actual operation.
8, Adopts 5-inch high-definition true color LCD screen, displaying data and vector diagrams intuitively and delicately.
9, The instrument comes with a thermal micro printer, which can print and save test results at any time.
10, The test source used by this instrument is a digitally synthesized standard sine digital source, with distortion less than 0.1%, unaffected by the quality of the working power supply.
11, This multifunctional fully automatic ratio tester is small in size, light in weight, and easy to carry.
12, Equipped with a high-capacity lithium-ion rechargeable battery, it can complete test work without external power supply on site, and one full charge can continuously perform more than 500 measurements.
Note: The above information and technical parameters are compiled and released by Yangzhou Dary Electric Co., Ltd.
