Allen-Bradley E300 - Average Percent FLA; Ground Fault Current; Current Imbalance

Rockwell Automation Publication 193-UM015E-EN-P - October 2015 509
Metering and Diagnostics Chapter 8
Average Percent FLA
Average Percent FLA (Parameter 50) reports the average current in comparison
to the active Full Load Amps programmed in FLA (Parameter 171) and FLA2
(Parameter 177).
Average Percent FLA = Average Current / Full Load Amps
Table 463 - Average Percent FLA (Parameter 50)
Ground Fault Current
Ground Fault Current (Parameter 51) reports the ground fault current measured
by the internal core balanced current transformer of the E300 relay Sensing
Module or external core balanced current transformer.
Table 464 - Ground Fault Current (Parameter 51)
Current Imbalance
Current Imbalance (Parameter 52) reports the percentage of uneven current
consumption in the monitored power system. Current Imbalance is defined by
the following equation:
Current Imbalance = 100% * (I
d
/I
a
)
where
I
d
= Maximum Line Current Deviation from the Average Current
I
a
= Average Current
Default Value 0.0
Minimum Value 0.0
Maximum Value 1000.00
Parameter Type UINT
Size (Bytes) 2
Scaling Factor 10
Units %
Default Value 0.0
Minimum Value 0.0
Maximum Value 99.99
Parameter Type UINT
Size (Bytes) 2
Scaling Factor 100
Units Amps