
CHAPTER 2: PRODUCT DESCRIPTION
2.5 TECHNICAL SPECIFICATIONS
GEK-106310-AF
F650 DIGITAL BAY CONTROLLER
2-9
GROUND TIME OVERCURRENT (51G)
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 10.00 A
±1.5% of the reading for higher values
Curve Shape:.............................................................................. 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
I
2
t
Definite time
Rectifier curve
FlexCurve
TM
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
NEUTRAL TIME OVERCURRENT (51N)
Current Input:............................................................................. fundamental phasor (without harmonics) or RMS
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 10.00 A
±1.5% of the reading for higher values
Curve Shape:.............................................................................. 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
I
2
t
Definite time
Rectifier curve
FlexCurve
TM
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
Summary of Contents for F650
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