GE F650 User Manual page 41

CHAPTER 2: PRODUCT DESCRIPTION
SENSITIVE GROUND INSTANTANEOUS OVERCURRENT (50SG)
Current Input:............................................................................. phasor (without harmonics) or RMS
Rated Current:........................................................................... for connection to 1 or 5 A CTs
Pickup Level:............................................................................... 0.005 to 16.000 A in steps of 0.001 A
Level Accuracy: ........................................................................ values at nominal frequency:
Overreach: .................................................................................. < 2%
Trip Delay: ................................................................................... 0.00 to 900.00 s in steps of 0.01 s
Reset Delay: ............................................................................... 0.00 to 900.00 s in steps of 0.01 s
Operate Time:............................................................................ < 50 ms at 3 x pickup at 50 Hz, typically
Timing Accuracy:..................................................................... at 0 ms time delay (no intentional delay): 50 ms
Snapshot Events: ..................................................................... selectable by setting
ISOLATED GROUND INSTANTANEOUS OVERCURRENT (50IG)
Current Input:............................................................................. fundamental phasor (without harmonics)
Voltage Input: ............................................................................ fundamental phasor (without harmonics)
Current Pickup Level:.............................................................. 0.005 to 0.400 A in steps of 0.001 A
Voltage Pickup Level: ............................................................. 2 to 70 V in steps of 1 V
Dropout Level: ........................................................................... 97% to 98% of the pickup level
Level Accuracy: ........................................................................ ±1.5% of the reading ± 1 mA from 0.005 to 16.000 A
Trip Delay: ................................................................................... 0.00 to 900.00 s in steps of 0.01 s
Time to Instantaneous: ......................................................... 0.00 to 900.00 s in steps of 0.01 s
Operate Time:............................................................................ < 50 ms at 3 x pickup at 50 Hz, typically
Timing Accuracy:..................................................................... at 0 ms time delay (no intentional delay): 50 ms
Snapshot Events: ..................................................................... selectable by setting
NEGATIVE SEQUENCE CURRENT (46)
Current Input:............................................................................. fundamental phasor (without harmonics)
Pickup Level:............................................................................... 0.05 to 160.00 A in steps of 0.01 A
Dropout Level: ........................................................................... 97% to 98% of the pickup level
Level Accuracy: ........................................................................ values at nominal frequency:
Curve Shape:.............................................................................. IEEE extremely/very/moderately inverse
Curve Multiplier (Time Dial): ................................................ 0.00 to 900.00 s in steps of 0.01 s
Reset Type: ................................................................................. instantaneous or time delayed, according to IEEE
Timing Accuracy:..................................................................... Operate at > 1.03 times the pickup ±3% of operate time or 50 ms
Saturation Level: ...................................................................... 48 times the pickup level
Snapshot Events: ..................................................................... selectable by setting
GEK-113000-AF
±1.5% of the reading ± 1 mA from 0.005 to 16.000 A
at non-zero time delay: ±3% of operate time or 50 ms
(whichever is greater)
at non-zero time delay: ±3% of operate time or 50 ms
(whichever is greater)
±0.5% of the reading ±10 mA from 0.05 to 10.00 A
±1.5% of the reading for higher values
IEC A/B/C/long-time inverse/short time inverse curve
IAC extremely/very/moderately inverse
ANSI extremely/very/normally/moderately inverse
2
t
I
Definite time
Rectifier curve
TM
FlexCurve A/B/C/D user curve
(whichever is greater)
F650 DIGITAL BAY CONTROLLER
2.5 TECHNICAL SPECIFICATIONS
2-11