Chapter 5 - Commissioning
UNITROL 1020 User Manual 3BHS335648 E82 95
In this status, the phase-angle difference must be 0 deg. Otherwise the
measuring cable is incorrectly connected. Incorrect polarity cannot be
detected by the UNITROL 1020. Paralleling with incorrect polarity can
lead to serious damage.
A phase shift caused by one of both measuring transformers or by the
connection group of a step-up transformer must never take place.
Be careful when the opening the star point of the primary voltage range
of the PT
5.6 Concluding Work after Commissioning
Write the currently adjusted parameters to EEPROM so that they are saved in
the device. Save the corresponding settings into an INI file or print the INI file
(see Chapter 9.3 – Parameter Settings, Default Values).
The INI file can be opened using an editor (Word, Note- or WordPad) and
printed.
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