IB02602004E For more information visit: www.eaton.com
Instructional Literature
Effective: May 2008 Page 31
Instructions for the FP-6000 Protective Relay
Figure 13. Induction Motor Load.
Figure 14. Power Distribution.
• Power Distribution (Figures 12 and 14)
Three conditions are typically encountered when monitoring
power distribution systems as follows:
1. Circuit breakers A and B are closed and C is open. Power
flow is in Quadrant 1. The power factor and Vars are
positive.
2. Circuit breakers A and C are closed and B is open. Power
flow for breakers A and C is in Quadrant 1. The power
factor and Vars are positive.
3. Circuit breakers B and C are closed and A is open. The
power flow for breaker B is in Quadrant 1 and the
metering conditions are the same as conditions 1 and 2.
However, the power flow for breaker C is reversed and is
in Quadrant 3.
The display units for Energy may be set to either kilo units or
Mega units. The “Energy Unit” setting is changed in the “System
Configuration” setting menu in the “Set” mode. The screen dis-
plays a 9-digit energy reading. Energy values roll over from
999,999,999 to 0.
4.6.1.4 Selecting the “Demand” Sub-menu
This menu allows the user to view the following Demand
parameters (See Display 7).
• Current Demand (IA, IB, IC)
• Current Peak Demand (IA, IB, IC)
• Date and Time Stamp when Current Demand was last reset
• Power Demand (Watt, VAR, VA)
• Power Peak Demand (Watt, VAR, VA)
• Date and Time Stamp when Power Demand was last reset
Display 7. Demand Sub-menu.
Current Demand Window (Fixed Window)
Current Demand is the average of system current over time,
which can be set from 1 to 60 minutes. For example, if the range
is set for 30 minutes, the FP-6000 calculates the average current
over the past 30 minutes and updates the value every 30
minutes. The range can be selected from the Logging menu by
pressing the Set pushbutton. Refer to Section 5 -Settings of this
manual for setting changes. The default setting for Current
Demand window selection is 15 minutes.
Power Demand Window (Fixed or Slide)
In addition to the interval setting as in the Current Demand
Window, the Power Demand window has an additional setting of
Fixed or Slide window. The default setting for Power window is
Fixed. If Fixed window is selected, the Demand will be calculated
every fixed interval and updated every fixed interval. If the Slide
window is selected, the Demand will be calculated every minute
for the interval selected. For example, if the Slide window is
selected and the interval is set to 30 minutes, the FP-6000
calculates and updates the average power every minute, for the
past 30 minutes. Refer to Section 5-Settings of this manual for
setting changes.
The FP-6000 also saves the peak demand values for current and
power. The quantities represent the largest demand value since
the demand values were last reset. Peak demands for current and
system power are date and time stamped to the nearest second.
Current Demand
A Demand Magnitude
IB Demand Magnitude
IC Demand Magnitude
Current Peak Demand
IA Demand Magnitude
IB Demand Magnitude
IC Demand Magnitude
Demand Last Reset
Date mm/dd/yy
Time hh:mm:ss
Power Demand
MWatt Magnitude
MVAR Magnitude
MVA Magnitude
Power Peak Demand
MWatt Magnitude
MVAR Magnitude
MVA Magnitude
P Demand Last Reset
Date mm/dd/yy
Time hh:mm:ss
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