Omicron CT Analyzer Getting Started page 9

key instead of specifying a value for this parameter. During the test, the CT Analyzer replaces the
question mark by the value guessed.
When using this function, please be aware that assessments performed with one or more
guessed parameters may possibly differ from an assessment based on exact nameplate data.
Absolutely reliable assessment is only guaranteed if all necessary CT data are specified prior to
the test.
For detailed information about the guesser function, please refer to the CT Analyzer User Manual.
2.3 Designated use of the CT SB2
The CT SB2 switch box is an accessory for the CT Analyzer and therefore exclusively designated for
use with the CT Analyzer.
The CT SB2 is intended for the following applications:
• Multi-ratio CT testing
The CT SB2 switch box enables automatic testing of multi-ratio CTs with up to 6 tap connections.
With this accessory, the CT Analyzer is able to measure every tap combination of multi-ratio CTs
without any need for wiring changes during the test.
• Burden and primary winding resistance measurement
Using the CT SB2 it is also possible to include burden and primary winding resistance measurement
to the automatic CT test procedure without rewiring.
• Single-ratio CT testing
Due to the possibility to include burden and primary winding resistance measurement, the CT SB2 is
not only useful for testing multi-ratio CTs but also for testing single-ratio CTs.
The CT SB2 is intended exclusively for the applications described above. Any other use is deemed not
to be according to the regulations. The manufacturer and the distributor are not liable for damage
resulting from improper usage. The user alone assumes all responsibility and risk.
Note:
The Quick Test function of the CT Analyzer and the CTA Quick Test PC tool cannot be used with the
CT SB2 switch box.
OMICRON
Introduction
9