CPC 100 V1.41
6 - 22
When results are measured, the A
UTO KEEP RESULT menu key is available.
After pressing the A
UTO KEEP RESULT menu key, CPC 100 waits until stable
results with a deviation less than 0.1% within the time period of 10 seconds are
achieved. After then, a new result line is added and the next measurement
starts.
Measurements
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.
IDC: actual test current from 6A DC output measured at IAC/DC
input or from 400A DC output measured internally
VDC: voltage measured at the 10V DC input
Columns of measurement table:
Tap: displays the transformer tap number for the measurements in
the respective line of the table. This tap number in specified in
the data entry field "Tap:" above the table.
Rmeas in
Ω: actual resistance, calculated from VDC / IDC
Dev. in %: deviation in % between the maximum and the minimum
measured values evaluated within the last 10 seconds of the
measurement. The results are considered stable if Dev < 0.1%
Press the context-dependent K
EEP RESULT menu key to
save the actual result in the measurement table. This adds a
new line to the measurement table and the next measurement
can be started.
Rref in
Ω: Temperature-corrected resistance value, that is, the resistance
value at an ambient temperature of Tref. Refer to formula on
page 6-17.
Ripple in %: Samples and holds the biggest measured current ripple that
occurred in the actual measuring cycle in negative direction. It
is indicated in % with reference to IDC.
Slope in A/s: Samples and holds the biggest measured steepness of the
falling edge of the actual test current.
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