PS-BB101A Handheld Three-Phase Transformation Ratio Tester


The power transformer shall be regularly tested for turns ratio or voltage ratio, including semi-finished products and finished products in the production process, transformers before putting into operation and during operation in the power system. The traditional transformation ratio bridge is cumbersome to operate, the reading is not intuitive, the necessary conversion is needed, and the test results only reflect a phase transformation ratio. The instrument overcomes the shortcomings of the traditional transformation ratio bridge test, completes the three-phase transformation ratio test at one time, has fast test speed and high accuracy, and greatly improves the test efficiency.

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SKU: gms102513 Category: Tags: , , ,


0.1%±2 numeric(0.9~500 )
0.5%±2numeric(4000 above)。
Resolving power
min 0.0001
Output voltage
160V/10V (Auto shift)
Working power supply
the instrument is equipped with lithium battery
Service temperature
Relative humidity
≤80%,No condensation
  • Color LCD:240 × 128 dot matrix color LCD with LED backlight, English display of operation menu and test results, intuitive interactive interface and simple operation.
  • Reset:Press this key to reset the whole machine and return to the initial interface.
  • Power switch: Start and shut down the instrument.
  • Function keys:Different interfaces of the instrument also have different functions. Please operate according to the prompts on the display screen.(Please refer to this manual: 6.Interface introduction and operation method.)
  • Print interface:An external micro printer can be the selected. Here is the reserved printer interface.
  • USB communication interface:Used for data transmission (do not operate at will).
  • USB flash disk interface:Use USB flash disk to export stored test data.
  • Charging interface: For charging the instrument, please use the special charger equipped with the instrument.
  • Low voltage terminal:The yellow, green and red test lines are connected with the low voltage a, b and c terminals of the transformer.
  • High voltage terminal: The yellow, green and red test lines are connected with the high voltage A, B and C terminals of the transformer.


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