| After-sales Service: | Lifetime Technical Support |
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| Warranty: | 1 Year for Transformer TTR Tester Calibrator |
| Application: | Transformer Turns Ratio Tester Calibrator |
| Power: | Electricity |
| Certification: | CE |
| LCD Display: | With LCD Display |
| Samples: |
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| Customization: |
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A, B and C are three-phase inputs connected to the primary side of the ratio tester; a, b and c are three-phase outputs connected to the secondary side of the ratio tester. The function switch is a function selector switch, which can select five functions for measurement. The selector switch is used in group selection, which has the function of selecting different groups of three-phase PTs, and also selecting Z-shaped groups. x, y, z, x, y, z, a`, b`, c`, x`, y`, z` are used in calibrating the accuracy of the standard ratio PT and standard three-phase PT of the device, and there is no other use other than that, but they cannot be shorted to each other.
The Transformer Turns Ratio Tester Calibrator is a precision calibration device designed specifically for calibrating transformer turns ratio testers. It ensures the accuracy and reliability of the testing equipment used to measure the turns ratio of transformers. By using this calibrator, technicians can verify and adjust the performance of the turns ratio tester, ensuring precise and consistent measurements. The calibrator adheres to international standards and best practices, providing confidence in the accuracy and reliability of transformer turns ratio testing.
| Variable ratio test function | Presettable standard variable ratio value: 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 2500 (12 in total) The value of UAB/Uab has the above 12 options, at this time, the rated voltage of UAB is 200V, the device can work within 20% to 120% of the rated voltage, the secondary voltage Uab can bear a load greater than or equal to 100KΩ, that is, the secondary input impedance of the tested ratio tester is required to ≥ 100KΩ, the error of the standard ratio value at this time is less than 0.05%. |
| Resolution test function | When the function selector switch is set to "Resolution", the resolution of the displayed value of the ratio tester can be tested, and the "ratio checker" can be preset to 10.001, 10.002, ......10.099 with 99 values for testing the resolution of various ratio testers. However, when checking the resolution of the ratio tester, the display value of the ratio tester should change significantly with the increase or decrease of the resolution. |
| Group test function | "Variable ratio calibration device" will standard three-phase PT according to the primary star, secondary star or triangle and primary triangle, secondary star or triangle connection method to form 12 groups, can be tested for all groups of the variable ratio group tester, at the same time in the group test of the variable ratio value can have 10, 100, 1000 three options, the group test of the standard three-phase PT of each single-phase error is less than 0.05% The error of each single phase of the standard three-phase PT is less than 0.05%. |
| Z-group test function | There are 10 groups of Z-group (△/Z or Y/Z), and the error of the two secondary windings of each single phase of the standard three-phase PT is less than 0.05%. |
| Straight-through test function | This function is to connect the primary voltage UAB of the ratio tester directly to the secondary terminal (a and b terminal) i.e. UAB=Uab, which can perform 1/1 self-calibration of the ratio tester, note that it cannot be used in the calibration of the ratio tester that does not allow straight-through. |
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