DOC. MIE91093 Rev. 1.34 Page 135 of 145
. Usually, CB’s have a time-dependent characteristic. Of this
CB we want to find and save trip and drop-off thresholds, and
also the time-dependent curve.
. Set the save function, as follows.
Test control > Save > Confirm at trip > ESC
. Set the timer with the following selections:
Timer start/stop > START > INT (RET)
STOP > INT (RET)
NOTE: the INT selection for STOP makes the timer to stop as
soon as the current is cut by the CB.
1.18.3. I> Threshold
The first session is finding threshold I>. Select ON; slowly
increase the current. As the CB trips, pressing the multi-
function knob the tripping value can be saved. The TRIP LED
(43) turns on for 5 seconds; during 5 seconds, parameters at
trip are displayed; then, the standard measurement is
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