IB02602004E
For more information visit: www.eaton.com
Instructional Literature
Effective: May 2008
Page
65
Instructions for the FP-6000 Protective Relay
Table 12. Protection (continued).
IR Residual OC:
Calculated residual time overcurrent (51R) and instantaneous (50R-1 & 50R-2) device settings.
DISPLAY SETTING
DESCRIPTION
SETPOINT RANGE/
VALUE SELECTION
DEFAULT
SETTING
SELECTED
VALUE
REFER TO SEC. #
51R IR TOC Curve
Residual CT Time Overcurrent Curve Setting
(Uses gnd CT ratio)
5.4.2.2
8.3
13.4
Shape:
Select curve characteristic shape
IT, I2T, I4T, FLAT, MOD, VERY, XTRM,
IECA, IECB, IECC
XTRM
Reset:
Select curve reset characteristics
Inst, Calc, T Delay
Calc
Direction:
Select direction
Forward, Reverse, Both
Both
51R IR TOC Setting
Residual CT Time Overcurrent Pickup and Time
Multiplier Settings
5.4.2.2
8.3
Pickup:
Select current pickup value in per unit values
(x I
nom
)
0.02 to 4.0
pu
or Disable
(0.01 increments)
0.50
Time Mult:
Select Time Multiplier
0.05 to 10.0
(.01 increments)
1.00
50R-1 IR IOC 1
Residual CT Overcurrent Element #1 Setting
5.4.2.2
8.3
Pickup:
Select current pickup value in per unit values
(x I
nom
)
0.1 to 20.0
pu
or Disable
(0.01 increments)
1.00
Delay (c):
Select delay time in cycles
0 to 9999 cycles
(1 cycle increments)
60
Direction:
Select direction
Forward, Reverse, Both
Both
50R-2 IR IOC 2
Residual CT Overcurrent Element #2 Setting
5.4.2.2
8.3
Pickup:
Select current pickup value in per unit values
(x I
nom
)
0.1 to 20.0
pu
or Disable
(0.01 increments)
2.00
Delay (c):
Select delay time in cycles
0 to 9999 cycles
(1 cycle increments)
600
Direction:
Select direction
Forward, Reverse, Both
Both
Unbalance Setting:
Selects voltage (47-1) unbalance and current (46-1) unbalance device settings.
DISPLAY SETTING
DESCRIPTION
SETPOINT RANGE/
VALUE SELECTION
DEFAULT
SETTING
SELECTED
VALUE
REFER TO SEC. #
47-1 Voltage Unbal
Voltage Unbalance Alarm Settings
5.4.2.4
8.6.1
Threshold:
Select magnitude of unbalance required (either
V1 or V2)
1 to 100 Volts or Disable
(1 Volt increments)
Disable
% (V2/V1):
Percent negative sequence (V2) divided by posi-
tive sequence (V1)
2 to 40 percent
(1% increments)
20
Delay (c):
Select delay time in cycles
0 to 9999 cycles
(1 cycle increments)
600
46-1 Current Unbal
Current Unbalance Alarm Settings
5.4.2.4
8.3.4
Threshold:
Select magnitude of unbalance required (either
I1 or I2)
0.1 to 20.0 or disable
(0.01
pu
increments)
Disable
% (I2/I1):
Percent negative sequence (I2) divided by posi-
tive sequence (I1)
2 to 40 percent
(1% increments)
20
Delay (c):
Select delay time in cycles
0 to 9999 cycles (
1 cycle increments)
600
