CPC 100 V1.41
6 - 8
Pressing the S
ETTINGS menu key opens the Settings page. The Settings
page of the TRRatio test card has another functionality as on other test cards.
Figure 6:
Settings page of the
TTRatio test card
The Settings page allows adding the transformer’s ratio per tap as follows. After
pressing the A
DD T AP menu key first, the Vprim and Vsec values for the first
tap are taken from the main page. Change the tap number to the lowest tap of
the transformer under test (for example, –16 or 0). Add the next tap by pressing
the A
DD T AP menu key and enter the corresponding Vprim and Vsec values.
Tap: Data entry field to enter the transformer’s tap number for each
measurement. If the transformer’s ratio was specified on the
Settings page (see page 6-8), the Vprim and Vsec values for
the tap are taken from there. The possible entry range from
-999…999 allows the first digit to be used as a phase identifier.
Example for 3 phases:
– phase L1 (A): -101, 100, 101, 102, 103...
– phase L2 (B): -201, 200, 201, 202, 203...
– phase L3 (C): -301, 300, 301, 302, 303...
Example for 1 phase:
– phase: -001, 000, 001, 002, 003...
Tap combo
box:
The selection made at this combo box specifies the counting
order of the taps in the measurement table’s column "Tap".
Possible selections are "Count up", "Count down" and "OFF".
The number specified at the data entry field "Tap" (see above)
represents the starting number.
"OFF" means, all lines in the measurement table show the
same tap number.
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