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I.Preface
During the processing of the semi-finished products and the finished products in
transformer production, the transformer newly installation before using, or according to
IEC and national standard, the turns ratio or voltage ratio should be tested in the circle
rate. Traditional bridge method is complicated, and can’t read the data directly, and you
have to make conversion, the testing results are data of one phase. Turns ratio tester of
HZBB-10A overcomes the shortcomings of traditional bridge method. The monitor adopts
big screen with lattice liquid crystal, which has the function of indicating by menu,
operating easily and directly. It finishes test of three-phase voltage ratio or turns ratio once,
fast testing and high precise.
II. Functions And Characters
1. The three-phase precision inverter power supply is used inside the instrument, which
eliminates the influence of harmonics of the mains voltage during measurement, and the
measurement is more accurate. When the working power source is a generator, there is no
impact.
2. Three-phase output voltage is adopted to improve the test speed. The angle between
phases can be measured, and the wiring group 0-11 can be automatically identified. For
low-voltage rectifier transformers with multiple windings, the low-voltage side does not
need to be disconnected to measure the transformation ratio and 7.5° Angle deviation.
3. It is suitable for a wide variety of transformers, especially suitable for the measurement
of Z-type transformers, rectifier transformers, grounding transformers, electric furnace
transformers, phase shifting transformers, balance transformers, etc.
4. It has high and low voltage reverse connection protection, transformer turn short circuit
protection, tap switch failure protection, output full short circuit protection, and increased
instrument stability.
5. After inputting the rated parameter, it can automatically measure the transformer ratio
value, error value and on-load tap-changer position.
6. Adopt 7-inch high-definition color touch-screen LCD, modular display, clear display even
