Unitronics electric UM2B, User Manual

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3.- UM2B EQUIPMENT
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3.- UM2B EQUIPMENT
3.1.- Description of the product
The UM2B unit has been especially designed to determine the recovery voltage of
single and/or three-phase transformers and autotransformers of any type. It is based on the
measurement of a series of simple parameters by means of a data acquisition system and a
computer application for the performance of calculations.
Figure 3-1: Appearance of the measurement system.
Once the data have been obtained, enough information is available for diagnosis of
the current status of the transformer, and for assessment of the trend curves. The advantages
that characterize the UM2B method may be summarized as follows:
 minimum risk for the machine.
 reduced unavailability times.
 simple performance.
 high degree of test automation.