GE F650-M-F-B-4-4-LO-C-6-E Large scale relay protector
NOTE: TECHNICAL SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
2.4.1 PROTECTION ELEMENTS
Phase and ground units use as operation magnitude the current value received by the unit in current inputs, while the
neutral unit uses the calculated current value from the three phase currents.
The isolated ground unit will be used only for those applications where the neutral is completely isolated, and it uses the
fifth CT of the unit. This CT has a sensitivity that is 10 times higher than the universal model (connected to 1A or 5A
transformers). Therefore, it does not admit such a high permanent overload.
2.4.1.1 PHASE TIME OVERCURRENT (51PH/51PL)
Current Input Phasor (without harmonics) or RMS
Rated current For connection to 1 or 5 A CTs.
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:
±0.5% of the reading ± 10 mA from 0.05 to 10 A
±1.5% of the reading for higher values.
Curve Shapes 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 inverseI2t
Definite time
Rectifier curve
FlexCurve™ A/B/C/D user curve
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. (whichever is greater)
Voltage restraint Selectable by setting
Saturation Level 48 times the pickup level
Snapshot Events Selectable by setting
2.4 TECHNICAL SPECIFICATIONS 2 PRODUCT DESCRIPTION
2.4.1.4 SENSITIVE GROUND TIME OVERCURRENT (51SG)
2.4.1.5 PHASE AND GROUND INSTANTANEOUS OVERCURRENT (50PH/50PL/50G)
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
Dropout level 97% to 98% of the pickup level
Level Accuracy Values at nominal frequency:
±1.5% of the reading ± 1 mA from 0.005 to 16 A
Curve Shapes 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 inverseI2t
Definite time
Rectifier curve
FlexCurve™ A/B/C/D user curve
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. (whichever is greater)
Saturation Level 48 times the pickup level
Snapshot Events Selectable by setting
Current Input Phasor (without harmonics) or RMS
Rated current For connection to 1 or 5 A CTs.
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:
±0.5% of the reading ± 10 mA from 0.05 to 10 A
±1.5% of the reading for higher values
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): 50ms
at non-zero time delay: ±3% of operate time or 50 ms
(whichever is greater)
Snapshot Events Selectable by setting

2 PRODUCT DESCRIPTION 2.4 TECHNICAL SPECIFICATIONS
2.4.1.6 NEUTRAL INSTANTANEOUS OVERCURRENT (50N)
2.4.1.7 SENSITIVE GROUND INSTANTANEOUS OVERCURRENT (50SG)
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:
±0.5% of the reading ± 10 mA from 0.05 to 10 A
±1.5% of the reading for higher values
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): 50ms
at non-zero time delay: ±3% of operate time or 50 ms
(whichever is greater)
Snapshot Events Selectable by setting
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
Dropout level 97% to 98% of the pickup level
Level Accuracy Values at nominal frequency:
±1.5% of the reading ± 1 mA from 0.005 to 16 A
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): 50ms
at non-zero time delay: ±3% of operate time or 50 ms
(whichever is greater)
Snapshot Events Selectable by setting
2.4 TECHNICAL SPECIFICATIONS 2 PRODUCT DESCRIPTION
2.4.1.8 ISOLATED GROUND INSTANTANEOUS OVERCURRENT (50IG)
2.4.1.9 NEGATIVE SEQUENCE CURRENT (46)
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 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): 50ms
at non-zero time delay: ±3% of operate time or 50 ms
(whichever is greater)
Snapshot Events Selectable by setting
Current Input Fundamental Phasor (without harmonics)
Pickup level 0.05 to 160.0 A in steps of 0.01 A
Dropout level 97% to 98% of the pickup level
Level Accuracy 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
Curve Shapes 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
Definite time
Rectifier curve
FlexCurve™ A/B/C/D user curve
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. (whichever is greater)
Saturation Level 48 times the pickup level
Snapshot Events Selectable by setting
2 PRODUCT DESCRIPTION 2.4 TECHNICAL SPECIFICATIONS
2.4.1.10 PHASE DIRECTIONAL (67P)
2.4.1.11 GROUND DIRECTIONAL (67G)
2.4.1.12 NEUTRAL DIRECTIONAL (67N)
Directionality Forward and reverse selectable by setting
Polarizing Quadrature Voltage:
ABC seq: Phase A (VBC), Phase B (VCA), Phase C
(VAB)
ACB seq: Phase A (VCB), Phase B (VAC), Phase C
(VBA)
Polarizing voltage threshold 0 to 300 Vac in steps of 1 V
Current Sensitivity Threshold 50 mA
Characteristic angle -90º to +90º in steps of 1º
Block Logic Permission or Block selectable by setting
Angle accuracy ±3º for I>0.1 A and V>5 Vac
Operate time <30ms, typically
Directionality Forward and reverse selectable by setting
Polarizing Voltage, current, dual
Polarizing Voltage VN (measured or calculated, selected by setting)
Polarizing Current Isg (measured from 5th current transformer)
Operating Current Ig (measured from 4th current transformer)
Polarizing Voltage threshold 0 to 300 Vac in steps of 1 V
Polarizing Current threshold 0.005 A
Characteristic angle -90º to +90º in steps of 1º
Block Logic Permission or Block selectable by setting
Angle accuracy ±3º for I>0.1 A and V>5 Vac
Operate time <30ms, typically
Directionality Forward and reverse selectable by setting
Polarizing Voltage, current, dual
Polarizing Voltage VN (measured or calculated, selected by setting)
Polarizing Current Isg (measured from 5th current transformer)
Operating Current IN
Polarizing Voltage threshold 0 to 300 Vac in steps of 1 V
Polarizing Current threshold 0.005 A
Characteristic angle -90º to +90º in steps of 1º
Block Logic Permission or Block selectable by setting
Angle accuracy ±3º for I>0.1 A and V>5 Vac
Operate time <30ms, typically