GE UR F35 Series Instruction Manual page 40

2.2 SPECIFICATIONS
PHASE UNDERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Curve shapes:
Curve multiplier:
2
Curve timing accuracy
at <0.90 x pickup:
AUXILIARY UNDERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Curve shapes:
Curve multiplier:
Curve timing accuracy
at <0.90 x pickup:
NEUTRAL OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Curve timing accuracy
at >1.1 x pickup:
Operate time:
AUXILIARY OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Timer accuracy:
Operate time:
2-10
0.000 to 3.000 pu in steps of 0.001
102 to 103% of pickup
±0.5% of reading from 10 to 208 V
GE IAV Inverse;
Definite Time (0.1s base curve)
Time dial = 0.00 to 600.00 in steps of
0.01
±3.5% of operate time or ±1/2 cycle
(whichever is greater) from pickup to
operate
0.000 to 3.000 pu in steps of 0.001
102 to 103% of pickup
±0.5% of reading from 10 to 208 V
GE IAV Inverse, Definite Time
Time Dial = 0 to 600.00 in steps of 0.01
±3.5% of operate time or ±1/2 cycle
(whichever is greater) from pickup to
operate
0.000 to 3.000 pu in steps of 0.001
97 to 98% of pickup
±0.5% of reading from 10 to 208 V
0.00 to 600.00 s in steps of 0.01 (definite
time) or user-defined curve
0.00 to 600.00 s in steps of 0.01
±3.5% of operate time or ±1 cycle
(whichever is greater) from pickup to
operate
<30 ms at 1.10 × pickup at 60 Hz
0.000 to 3.000 pu in steps of 0.001
97 to 98% of pickup
±0.5% of reading from 10 to 208 V
0 to 600.00 s in steps of 0.01
0 to 600.00 s in steps of 0.01
±3% of operate time or ±1/4 cycle
(whichever is greater)
<30 ms at 1.10 × pickup at 60 Hz
F35 Multiple Feeder Protection System
2 PRODUCT DESCRIPTION
UNDERFREQUENCY
Minimum signal: 0.10 to 1.25 pu in steps of 0.01
Pickup level: 20.00 to 65.00 Hz in steps of 0.01
Dropout level: pickup + 0.03 Hz
Level accuracy: ±0.001 Hz
Time delay: 0 to 65.535 s in steps of 0.001
Timer accuracy: ±3% of operate time or ±1/4 cycle
(whichever is greater)
Operate time: typically 4 cycles at 0.1 Hz/s change
typically 3.5 cycles at 0.3 Hz/s change
typically 3 cycles at 0.5 Hz/s change
Typical times are average operate times including variables such
as frequency change instance, test method, etc., and may vary by
±0.5 cycles.
BREAKER ARCING CURRENT
Principle: accumulates breaker duty (I
sures fault duration
Initiation: programmable per phase from any Flex-
Logic operand
Compensation for auxiliary relays: 0 to 65.535 s in steps of 0.001
Alarm threshold: 0 to 50000 kA2-cycle in steps of 1
Fault duration accuracy: 0.25 of a power cycle
Availability: 1 per CT bank with a minimum of 2
BREAKER RESTRIKE
Principle: detection of high-frequency overcurrent
condition ¼ cycle after breaker opens
Availability: one per CT/VT module (not including 8Z
modules)
Pickup level: 0.1 to 2.00 pu in steps of 0.01
Reset delay: 0.000 to 65.535 s in steps of 0.001
INCIPIENT CABLE FAULT DETECTION
Principle: detection of ½ cycle or less overcurrent
condition during normal load
Availability: two per CT/VT module (not including 8Z
modules)
Pickup level: 0.1 to 10.00 pu in steps of 0.01
Reset delay: 0.000 to 65.535 s in steps of 0.001
Operating mode: number of counts, counts per time win-
dow
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
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
Timer accuracy (cold curve): ±100 ms or 2%, whichever is greater
Timer accuracy (hot curve): ±500 ms or 2%, whichever is greater
for I < 0.9 × k × I
p
2
t) and mea-
and I / (k × I ) > 1.1
b b
GE Multilin