Application Guide - NP900 Series
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A996A
Figure 3.6.5.4-203 Example of timers and pick-up parameters. Activated CLPU instant
release due to too long starting.
CLPU activates after current has been under
ILow
setting for time
Tset .
When current
exceed the
IHigh
setting the maximum allowed CLPU timer start to count until
Tmax
time.
In this example the measured current is over the set
IHigh
setting until
Tmax
time and
causes the release of the CLPU signal.
Figure 3.6.5.4-204 Example of timers and pick-up parameters. No inrush current detected
in the starting.
CLPU activates after current has been under
ILow
setting for time
Tset.
When current
exceed the
ILow
setting but not
IHigh
the CLPU signal is active until the
Tmin
time. If no
inrush is noticed during the
Tmin
time the CLPU signal is released.
