User-Programmable Elements - GE UR F35 Series Instruction Manual

Multiple feeder protection system
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2.2 SPECIFICATIONS
BREAKER ARCING CURRENT
Principle:
Initiation:
Compensation for auxiliary relays: 0 to 65.535 s in steps of 0.001
Alarm threshold:
2
Fault duration accuracy: 0.25 of a power cycle
Availability:
INCIPIENT CABLE FAULT DETECTION
Principle:
Availability:
Pickup level:
Reset delay:
Operating mode:
FLEXLOGIC™
Programming language: Reverse Polish Notation with graphical
Lines of code:
Internal variables:
Supported operations:
Inputs:
Number of timers:
Pickup delay:
Dropout delay:
FLEXCURVES™
Number:
Reset points:
Operate points:
Time delay:
FLEX STATES
Number:
Programmability:
FLEXELEMENTS™
Number of elements:
Operating signal:
Operating signal mode: signed or absolute value
Operating mode:
Comparator direction:
Pickup Level:
Hysteresis:
Delta dt:
Pickup & dropout delay: 0.000 to 65.535 s in steps of 0.001
2-10
2
accumulates breaker duty (I
t) and mea-
sures fault duration
programmable per phase from any Flex-
Logic™ operand
0 to 50000 kA2-cycle in steps of 1
1 per CT bank with a minimum of 2
detection of ½ cycle or less overcurrent
condition during normal load
two per CT/VT module (not including 8Z
modules)
0.1 to 10.00 pu in steps of 0.01
0.000 to 65.535 s in steps of 0.001
number of counts, counts per time win-
dow
visualization (keypad programmable)
512
64
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
any logical variable, contact, or virtual
input
32
0 to 60000 (ms, sec., min.) in steps of 1
0 to 60000 (ms, sec., min.) in steps of 1
4 (A through D)
40 (0 through 1 of pickup)
80 (1 through 20 of pickup)
0 to 65535 ms in steps of 1
up to 256 logical variables grouped
under 16 Modbus addresses
any logical variable, contact, or virtual
input
16
any analog actual value, or two values in
differential mode
level, delta
over, under
–90.000 to 90.000 pu in steps of 0.001
0.1 to 50.0% in steps of 0.1
20 ms to 60 days
F35 Multiple Feeder Protection System
2 PRODUCT DESCRIPTION
AUTORECLOSURE
Single breaker applications, 3-pole tripping schemes
Up to 4 reclose attempts before lockout
Independent dead time setting before each shot
Possibility of changing protection settings after each shot with
FlexLogic™
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

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
LED TEST
Initiation:
from any digital input or user-program-
mable condition
Number of tests:
3, interruptible at any time
Duration of full test:
approximately 3 minutes
Test sequence 1:
all LEDs on
Test sequence 2:
all LEDs off, one LED at a time on for 1 s
Test sequence 3:
all LEDs on, one LED at a time off for 1 s
USER-DEFINABLE DISPLAYS
Number of displays:
16
2 × 20 alphanumeric characters
Lines of display:
Parameters:
up to 5, any Modbus register addresses
Invoking and scrolling:
keypad, or any user-programmable con-
dition, including pushbuttons
CONTROL PUSHBUTTONS
Number of pushbuttons: 7
Operation:
drive FlexLogic™ operands
GE Multilin

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