Rockwell-automation 592- E300 Overload Relay User Manual Manual de usuario Pagina 185

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Rockwell Automation Publication 193-UM015B-EN-P - June 2014 185
Protective Trip and Warning Functions Chapter 5
Table 186 - Under Power Factor Lagging Warn Level (Parameter 413)
Over Power Factor Lagging Trip
The E300 Electronic Overload Relay will trip with an Over Power Factor
Lagging indication if:
No trip currently exists
Over Power Factor Lagging Trip is enabled
Current is present
Voltage is present
Over Power Factor Lagging Inhibit Time has expired
The total power factor lagging is greater than the Over Power Factor
La
g
ging Trip Level for a time period greater than the Over Power Factor
Lagging Trip Delay.
If the E300 Electronic Overload Relay trips on an over power factor lagging, the:
T
RIP/WARN LED status indicator will flash a red 2-long / 10-short
bl
ink pattern
Bit 9 in Power Trip Status (Parameter 6) will set to 1
Bit 0 in Device Status 0 (Parameter 20) will set to 1
Any relay outputs configured as a Trip Relay will open
Any relay outputs configured as a Control Relay will open
Any relay outputs configured as a Trip Alarm will close
Any relay outputs configured as a Normal Relay will be placed in their
P
r
otection Fault state (if so programmed)
Default Value -95
Minimum Value -100
Maximum Value 0
Parameter Type SINT
Size (Bytes) 1
Scaling Factor 1
Units %
IMPORTANT
The Under Power Factor Lagging Warning function does not include a time
delay feature. Once the Under Power Factor Lagging Inhibit Time has expired,
the Under Power Factor Lagging Warning indication is instantaneous.
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