Special Type Transformer Turn Ratio Tester TTR Scott Transformer Turns Ratio Test Device

Suitable for three-phase transformers, Z-winding transformers, rectifier transformers and transformer testing of railroad electrical systems, three-phase power supply or two-phase power generated by the internal power module, the output to the high-voltage side of the transformer, and then high-voltage and low-voltage sampling at the same time, and finally calculate the grouping, the ratio, the error, phase difference

• Automatically generates a three-phase (120°) or two-phase (90°) power supply with stable amplitude and constant phase.
• Test results are unaffected by fluctuations in the frequency and amplitude of the industrial power supply
• Fast test, a set of data testing time of 8 seconds

BBC-V Special transformer turns ratio test instrument  is a good device to test three phase transformer,Z type transformer and rectifier transformers/Scott/Inverse Scott and Balance transformers of railroad electrical systems.

Multifunction turn ratio tester input single-phase power supply, three-phase power supply or two-phase power supply generated by the internal power module, output to the high-voltage side of the transformer, and then high-voltage and low-voltage sampling at the same time, and finally calculate the group, ratio, error, phase difference. Multi-function ratio tester adopts large screen liquid crystal display, full Chinese menu and Chinese character printout. The instrument has built-in instruction manual, which can be consulted at any time. The instrument can be directly controlled by the host computer through the USB port to complete the setup, measurement, uploading data saving and printing operations. Instrument operation is very convenient, is the power system, transformer manufacturers and railroad electrical system ideal transformer ratio group polarity tester.
 

BBC-V TTR Tester Charateristic

1. True three-phase test: single-phase power input, internal digital synthesis of three-phase standard sine wave signal source, through the high-fidelity power amplifier, resulting in three-phase test power (distortion less than 0.1%, symmetry better than 0.05%) output, the test results have a better equivalence, will not appear group misjudgment and other phenomena;
2. Powerful: both single-phase measurement, but also to achieve automatic testing of three-phase winding, single-phase, three-phase can be measured polarity, phase angle, a complete measurement of AB, BC, CA three-phase variable ratio value, phase angle value, error, tap position, tap value and other parameters, can automatically identify the group number;
3. Phase angle measurement function: accurately measure the phase angle between the high and low voltage sides, and it can measure the ratio and angle of the transformer which is not a whole point;
4. Hexagonal diagram display function: the test results are displayed in digital and hexagonal vector diagrams, visualizing the transformer connection group;
5. Blind test function: no need to select the wiring mode, no need to select the wiring group, measuring Y/△, △/Y transformer without external shorting, according to the selection of the test content can automatically switch the wiring mode. Completely can be no nameplate transformer ratio and group number measurement;
6. tap test: can quickly measure the ratio and ratio error in each tap changer position, rated ratio only need to input once, no need to repeatedly input can calculate the ratio error in each tap position;
7. At the same time with turns ratio measurement and running voltage ratio measurement of two functions, running ratio can more truly reflect the transformer in the actual operation of the situation, the actual value of the voltage ratio;
8. Good vibration resistance: the use of grade A quality connectors to enhance the anti-vibration performance;
9. the use of 5.6-inch high-definition true color LCD screen, display data effect and vector diagram effect intuitive and delicate;
10.  the test source used in this instrument is a digitally synthesized standard sinusoidal digital source, the distortion is less than 0.1%, not affected by the quality of the working power supply;
11.  easy to carry: small size, light weight;
12. optional high-capacity lithium-ion rechargeable batteries, the site without any power supply to complete the test work, a full can be more than 800 consecutive measurements;

Multi-function transformer turn ratio tester notes:

1. Before measurement, make sure that the equipment under test is in a power-off state, and each test terminal cannot be grounded;
2. Measurement wiring must be operated strictly in accordance with the instructions, or suffer the consequences;
3. Before testing, be sure to carefully check whether the set parameters are correct;
4. When charging, it is best to use a power outlet with a ground wire;
5. Cannot work under the condition of over-volume limit;
6. It is strictly prohibited to reverse the high and low voltage.

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