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IB02602004E
For more information visit: www.eaton.com
Instructional Literature
Effective: May 2008
Page
67
Instructions for the FP-6000 Protective Relay
Table 12. Protection (continued).
Freq Protection:
Selects underfrequency (81U-1) and overfrequency (81O-1) device settings.
DISPLAY SETTING
DESCRIPTION
SETPOINT RANGE/
VALUE SELECTION
DEFAULT
SETTING
SELECTED
VALUE
REFER TO SEC. #
81U-1 Underfreq
Underfrequency Settings
5.4.2.7
8.8
Threshold:
Select frequency threshold
45 to 65, disable
(0.01 Hz increments)
Disable
Delay (c):
Select delay time, which is based on power system
frequency
0 to 9999
1 cycle increments)
60.00
81O-1 Overfreq
Overfrequency Settings
5.4.2.7
8.8
Threshold:
Select frequency threshold
45 to 65, disable
(0.01 Hz increments)
Disable
Delay (c):
Select delay time, which is based on power system
frequency
0 to 9999
(1 cycle increments)
60
Power Protection:
Select power protection and trip settings (32-1 & 32-2).
DISPLAY SETTING
DESCRIPTION
SETPOINT RANGE/
VALUE SELECTION
DEFAULT
SETTING
SELECTED
VALUE
REFER TO SEC. #
32-1 Pwr Definition
Power Protection Settings 1
5.4.2.6
Direction:
Select the direction of power
Forward, Reverse, Both
Reverse
Criterion:
Select if the threshold is based on over or under
power
Over, Under
Over
32-1 Pwr Trip
5.4.2.6
Threshold:
Select the magnitude of the power required
0.02 to 4.00
pu
*
or Disable
Disable
Delay (c):
Select delay time in cycles
0 to 65535 cycles
(1 cycle increments)
10
32-2 Pwr Definition
Power Protection Settings 2
5.4.2.6
Direction:
Select the direction of power
Forward, Reverse, Both
Reverse
Criterion:
Select if the threshold is based on over or under
power
Over, Under
Over
32-2 Pwr Trip
Power Trip Settings
5.4.2.6
Threshold:
Select the magnitude of the power required
0.02 to 4.00
pu
*
or Disable
Disable
Delay (c):
Select delay time in cycles
0 to 65535 cycles
(1 cycle increments)
1
* 1pu = 3 x CT secondary rating x VT secondary rating for wye; the square root of 3 x VT secondary rating x CT secondary rating for delta
Breaker Failure:
Selects breaker failure (50BF) device settings.
DISPLAY SETTING
DESCRIPTION
SETPOINT RANGE/
VALUE SELECTION
DEFAULT
SETTING
SELECTED
VALUE
REFER TO SEC. #
50BF Bkr Failure
Breaker Failure Settings
5.4.2.8
8.9.5
BFI Config:
Select how breaker failure is detected
Off, Internal, External, Both
Off
BF Ph Current:
Select phase current pickup in per unit values
0.02 to 5.00
pu,
disable
(0.01 of Increments)
(501=disable)
Disable
BF Gnd Current:
Select ground current pickup in per unit values
0.02 to 5.00pu, disable
(0.01 of Increments)
(5.01=disable)
Disable
Delay (c):
Select delay time in cycles
0 to 9999 cycles
(1 cycle increments)
0