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Omicron CPC 100 Reference Manual

Omicron CPC 100
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CPC 100 V1.41
6 - 24
Figure 14:
Measurement table -
relevant columns for
winding resistance
measurement
Entering the tap number after a test
Even at this point of time the tap number can still be entered. To do so, select
the line of your choice in the measurement table, and press the context-
dependent menu key E
DIT TAP.
You can publish the results in a report. To do so, change to File Operations.
Tap changer test and measuring the winding resistance
When testing a tap changer, we recommend:
To inject the same current value for each phase.
To move the tap changer in the same direction for all measurements since,
in general, properly functioning tap changers can show quite different results
depending on the direction of movement.
On the contrary, an interruption caused by a defective tap changer results in
comparatively high measured values for ripple and slope; in this case the
direction does not matter.
To perform the tap changer test, follow the instructions on page 23 of this
chapter.
Note: After the test has been finished, you can delete a result line by
selecting the result line you want to delete and pressing the
D
ELETE R ESULT menu key.
For the winding resistance, the first 4 columns (Tap, Rmeas in Ω, Dev. in % and
Rref in
Ω) of the measurement table are relevant.

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Omicron CPC 100 Specifications

General IconGeneral
BrandOmicron
ModelCPC 100
CategoryTest Equipment
LanguageEnglish

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