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
1
0
0
0
1
ABC
1
0
0
0
2
ACB
1
0
0
0
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