GE Multilin g60

2-14 G60 Generator Protection System GE Multilin
2.2 SPECIFICATIONS 2 PRODUCT DESCRIPTION
2
LOSS OF EXCITATION
Operating condition: Positive-sequence impedance
Characteristic: 2 independent offset mho circles
Center: 0.10 to 300.0  (sec.) in steps of 0.01
Radius: 0.10 to 300.0  (sec.) in steps of 0.01
Reach accuracy: ±3%
Undervoltage supervision
Level: 0.000 to 1.250 pu in steps of 0.001
Accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0 to 65.535 s in steps of 0.001
Timing accuracy: ±3% or ±20 ms, whichever is greater
Operate time: <50 ms
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
p
< 0.9 × k × I
b
and I / (k × I
b
) > 1.1
RTD PROTECTION
Pickup: 1 to 249°C in steps of 1
Dropout level: 2°C of pickup
Timing accuracy: <1 s
Elements: trip and alarm
REMOTE RTD PROTECTION
Pickup level: 1 to 200°C
Dropout level: 2°C of pickup
Time delay: <10 s
Elements: trip and alarm
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
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
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