GE F650 User Manual page 39

2 PRODUCT DESCRIPTION
2.5.1.8 ISOLATED GROUND INSTANTANEOUS OVERCURRENT (50IG)
Current Input
Voltage Input
Current Pickup level
Voltage Pickup level
Dropout level
Level Accuracy
Trip delay
Time to instantaneous
Operate time
Timing accuracy
Snapshot Events
2.5.1.9 NEGATIVE SEQUENCE CURRENT (46)
Current Input
Pickup level
Dropout level
Level Accuracy
Curve Shapes
Curve Multiplier (Time Dial)
Reset type
Timing accuracy
Saturation Level
Snapshot Events
GEK-113000AE
Fundamental Phasor (without harmonics)
Fundamental Phasor (without harmonics)
0.005 to 0.400 A in steps of 0.001 A
2 to 70 V in steps of 1 V
97 to 98% of the pickup level
±1.5% of the reading ± 1 mA from 0.005 to 16 A
0.00 to 900.00 s. in steps of 0.01 s.
0.00 to 900.00 s. in steps of 0.01 s.
<50 ms at 3 x Pickup at 50 Hz, typically
at 0 ms time delay (no intentional delay): 50ms
at non-zero time delay: ±3% of operate time or 50 ms
(whichever is greater)
Selectable by setting
Fundamental Phasor (without harmonics)
0.05 to 160.0 A in steps of 0.01 A
97% to 98% of the pickup level
Values at nominal frequency:
±0.5% of the reading ± 10 mA from 0.05 to 10 A
±1.5% of the reading for higher values
IEEE extremely / very / moderately inverse
IEC A/B/C/long-time inverse/short time inverse curve
IAC extremely / very / moderately inverse
ANSI extremely / very / normally / moderately inverse
2
I t
Definite time
Rectifier curve
FlexCurve™ A/B/C/D user curve
0.00 to 900.00 s in steps of 0.01 s
Instantaneous or time delayed according to IEEE
Operate at > 1.03 times the pickup ±3% of operate time
or 50 ms. (whichever is greater)
48 times the pickup level
Selectable by setting
F650 Digital Bay Controller
2.5 TECHNICAL SPECIFICATIONS
2
2-11