Table 51. High Power; Table 52. Peak Demand - Eaton Power Xpert C445 User Manual

High Power
The High Power protection monitors the kW consumed
(supply side) by the load and will trip the motor if the
measured value exceeds the set threshold. The High Power
protection is active when the motor is in the Running state.
The rated power is calculated from the rated HP input by
the user.

Table 51. High Power

Fault
Code Protection Action
15 High Power Fault Trip
Fault Warning
Peak Demand Alarming
A utility company's bill is based on consumption (kWHr) and
more typically on peak demand in the last month. In the US
demand is typically calculated as the average kW in a 15
minute window. The peak demand is simply the maximum
value of the calculated demand. Industrial users may have
rather sophisticated load shedding and demand response
processes running at the feeder level or higher.
The C445 will provide a simplified demand warning system
that will provide the current demand estimate, a resettable
peak demand (with date and time stamp) stored in
nonvolatile memory, and a demand warning threshold. The
time window for demand calculation will be adjustable to
provide for more flexibility.

Table 52. Peak Demand

Fault
Code Protection Parameter
Peak Demand Demand Window Duration
Peak Demand Warning Threshold
Peak Demand
Present Demand
Demand Timestamp
Fault Action
Modbus Units
1046 %
1047 %
Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com
Min. Max. Default
–200 200 110
–200 200 110
Fault Action
Modbus Units Min.
1054 Minutes 1
1052 Watts
Watts
Watts
Unix
Chapter 6—Motor Protection
Delay (Seconds)
Min. Max. Default
1 60 20
1 60 2
Max. Default
240 15
0
Modbus
1048
1079
139