Instructional Literature
Page
64
Effective: May 2008
Instructions for the FP-6000 Protective Relay
For more information visit: www.eaton.com
IB02602004E
Table 12. Protection (continued).
IX Measured OC:
Independent fourth CT time overcurrent (51X) and instantaneous (50X-1 & 50X-2) device settings.
DISPLAY SETTING
DESCRIPTION
SETPOINT RANGE/
VALUE SELECTION
DEFAULT
SETTING
SELECTED
VALUE
REFER TO SEC. #
51X IX TOC Curve
Fourth 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
51X IX TOC Setting
Fourth 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
50X-1 IX IOC 1
Fourth 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
50X-2 IX IOC 2
Fourth 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)
6.00
Direction:
Select direction
Forward, Reverse, Both
Both
