11 Transformer configuration
Detection
11.1 Overview
The unit can perform automatic detection of the transformer winding configuration and the phase
displacement. Typically this is used to check the winding connections of a known transformer type
or to find out the configuration of an unknown type.
To access to this feature, the equipment must be equipped with the Turns ratio option, see
chapter 12Turns Ratio Measurement
The function energises and measures the transformer using various different connections and
shorting to determine the phase displacement. Further energisation and measurements are
performed to determine whether there is a neutral connection on either the primary or secondary
winding. Finally the likely transformer configurations are presented in the results grid. Less likely
zig-zag configurations are also shown in a different color.
he function includes a user selectable threshold to control how close the reported phase angle
must be to a perfect clock number phase shift. This allows differentiation of arbitrary phase shift
transformers from standard phase shifts.
11.2 User Interface
The 2293 is equipped with an optional detection function. This optional feature is enabled using
the license manager. This process only needs to be completed the first time detection is used.
To access to the license manager, select
setup function key in the bottom bar of any
application