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2 PRODUCT DESCRIPTION
POWER SWING DETECT
Functions:
Power swing block, Out-of-step trip
Characteristic:
Mho or Quad
Measured impedance:
Positive-sequence
Blocking / tripping modes: 2-step or 3-step
Tripping mode:
Early or Delayed
Current supervision:
Pickup level:
0.050 to 30.000 pu in steps of 0.001
Dropout level:
97 to 98% of pickup
Fwd / reverse reach (sec. ): 0.10 to 500.00 in steps of 0.01
Left and right blinders (sec. ): 0.10 to 500.00 in steps of 0.01
Impedance accuracy:
±5%
Fwd / reverse angle impedances: 40 to 90° in steps of 1
Angle accuracy:
±2°
Characteristic limit angles: 40 to 140° in steps of 1
Timers:
0.000 to 65.535 s in steps of 0.001
Timing accuracy:
±3% or 4 ms, whichever is greater
FLEXLOGIC™
Programming language: Reverse Polish Notation with graphical
visualization (keypad programmable)
Lines of code:
512
Internal variables:
64
Supported operations:
NOT, XOR, OR (2 to 16 inputs), AND (2
to 16 inputs), NOR (2 to 16 inputs),
NAND (2 to 16 inputs), latch (reset-domi-
nant), edge detectors, timers
Inputs:
any logical variable, contact, or virtual
input
Number of timers:
32
Pickup delay:
0 to 60000 (ms, sec., min.) in steps of 1
Dropout delay:
0 to 60000 (ms, sec., min.) in steps of 1
FLEXCURVES™
Number:
4 (A through D)
Reset points:
40 (0 through 1 of pickup)
Operate points:
80 (1 through 20 of pickup)
Time delay:
0 to 65535 ms in steps of 1
FLEX STATES
Number:
up to 256 logical variables grouped
under 16 Modbus addresses
Programmability:
any logical variable, contact, or virtual
input
GE Multilin
N60 Network Stability and Synchrophasor Measurement System
OPEN POLE DETECTOR
Functionality:
Detects an open pole condition, monitor-
ing breaker auxiliary contacts, the cur-
rent in each phase and optional voltages
on the line
Current pickup level:
0.000 to 30.000 pu in steps of 0.001
Line capacitive reactances (X
, X
C1
steps of 0.1
Remote current pickup level: 0.000 to 30.000 pu in steps of 0.001
Current dropout level:
pickup + 3%, not less than 0.05 pu
THERMAL OVERLOAD PROTECTION
Thermal overload curves: IEC 255-8 curve
Base current:
0.20 to 3.00 pu in steps of 0.01
Overload (k) factor:
1.00 to 1.20 pu in steps of 0.05
Trip time constant:
0 to 1000 min. in steps of 1
Reset time constant:
0 to 1000 min. in steps of 1
Minimum reset time:
0 to 1000 min. in steps of 1
Timing accuracy (cold curve): ±100 ms or 2%, whichever is
greater
Timing accuracy (hot curve): ±500 ms or 2%, whichever is greater
for I
< 0.9 × k × I
p
TRIP BUS (TRIP WITHOUT FLEXLOGIC™)
Number of elements:
6
Number of inputs:
16
Operate time:
<2 ms at 60 Hz
Time accuracy:
±3% or 10 ms, whichever is greater
2.2.2 USER-PROGRAMMABLE ELEMENTS
FLEXELEMENTS™
Number of elements:
16
Operating signal:
any analog actual value, or two values in
differential mode
Operating signal mode: signed or absolute value
Operating mode:
level, delta
Comparator direction:
over, under
Pickup Level:
–90.000 to 90.000 pu in steps of 0.001
Hysteresis:
0.1 to 50.0% in steps of 0.1
Delta dt:
20 ms to 60 days
Pickup & dropout delay: 0.000 to 65.535 s in steps of 0.001
NON-VOLATILE LATCHES
Type:
set-dominant or reset-dominant
Number:
16 (individually programmed)
Output:
stored in non-volatile memory
Execution sequence:
as input prior to protection, control, and
FlexLogic™
USER-PROGRAMMABLE LEDs
Number:
48 plus trip and alarm
Programmability:
from any logical variable, contact, or vir-
tual input
Reset mode:
self-reset or latched
2.2 SPECIFICATIONS
): 300.0 to 9999.9 sec. in
C0
and I / (k × I
) > 1.1
b
b
2-7
2
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