Chapter 6—Motor Protection
136 Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com
Phase Rotation
The Phase Sequence protection monitors the sequence of
the supply. A fault will be generated if the supply sequence
does not match the configured setting. The phase sequence
protection is always active.
Table 45. Voltage Phase Rotation
Power Factor Deviation
The Power Factor (PF) Deviation protection monitors the PF
(supply side) of the load and will trip the motor if the
measured deviation from rated exceeds the set threshold.
The power factor deviation protection is active when the
motor is in the running state.
Measurement Precondition Vavg > 40 volts RMS & Iavg
RMS > 50% of FLA.
Table 46. PF Deviation
Fault
Code Modbus
Fault Action Delay (Seconds)
Protection Action Units Value Max. Default Min. Max. Default Modbus
21 Phase Rotation Fault Trip 1024 0 Off 1000
1ABC1000
2ACB1000
Fault
Code Modbus
Fault Action Delay (Seconds)
Protection Action Units Min. Max. Default Min. Max. Default Modbus
9 Power Factor
Deviation Low
Fault Trip 1056 % –10000 10000 0 1 60 20 1059
Fault Warning 1058 % –10000 10000 0 1 60 2 1079
9 Power Factor
Deviation High
Fault Trip 1055 % –10000 10000 10000 1 60 20 1059
Fault Warning 1057 % –10000 10000 10000 1 60 2 1079