Rockwell Automation Publication 193-UM015D-EN-P - February 2015
327
Metering and Diagnostics
Chapter 8
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
Table 399 - Current Imbalance (Parameter 52)
Voltage Monitor
The E300 Electronic Overload Relay’s voltage monitor diagnostics provides
information on the voltage being supplied to the load. The voltage diagnostics
include three-phase voltage, phase imbalance, phase rotation, and frequency.
L1-L2 Voltage
L1-L2 Voltage (Parameter 53) reports the voltage in volts in reference to the T1
and T2 power terminals of the E300 Electronic Overload Relay Sensing Module.
Table 400 - L1-L2 Voltage (Parameter 53)
Default Value
0
Minimum Value
0
Maximum Value
200
Parameter Type
UINT
Size (Bytes)
2
Scaling Factor
1
Units
%
Default Value
0.0
Minimum Value
0.0
Maximum Value
6553.5
Parameter Type
UINT
Size (Bytes)
2
Scaling Factor
10
Units
Volts
Summary of Contents for Allen-Bradley E300
Page 1: ...E300 Electronic Overload Relay Bul 193 592 User Manual...
Page 128: ...128 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 5 Operating Modes...
Page 304: ...304 Rockwell Automation Publication 193 UM015D EN P February 2015 Chapter 7 Commands Notes...
Page 502: ...502 Rockwell Automation Publication193 UM015D EN P November 2013 Appendix B Parameter List...
Page 545: ......