Technical Specifications - GE 169 Instruction Manual

1 INTRODUCTION

1.4 Technical Specifications

Phase Current Inputs
conversion: calibrated RMS
0.05 to 12 × phase CT primary amps setpoint
range:
12 × phase CT primary amps setpoint
full scale:
accuracy: ±0.5% of full scale (0.05 to 2 X phase CT primary amps setpoint)
±1.0% of full scale (over 2 X phase CT primary amps setpoint)
Ground Fault Current Input
conversion: calibrated RMS
range: 0.1 to 1.0 X G/F CT primary amps setpoint (5 Amp secondary CT)
1.0 to 10.0 amps (2000:1 CT)
1 × G/F CT primary amps setpoint (5 Amp secondary CT)
full scale:
10 amps (2000:1 CT)
accuracy: ±4% of G/F CT primary amps setpoint (5 Amp secondary CT)
± 0.3 amps primary (2000:1 CT)
Overload Curves
trip time accuracy:
detection level:
Unbalance
display accuracy:
Relay Lock-out Time
accuracy: +/- 1 minute with control power applied
+/- 20% of total lock-out time with no control power applied
Trip/Alarm Delay Times
accuracy: ±0.5 sec. or 2% of total time, whichever is greater with the exception of:
1. "INST."setpoints:
2. Ground Fault 0.5 Second delay:
3. Ground Fault 250 msec delay:
Phase Reversal Trip Time
relay response time:
Differential Relay Input
relay response time:
±1 sec. up to 13 sec.
±8% of trip time over 13 sec.
±1% of primary CT amps
±2 percentage points of true negative sequence unbalance (In/Ip)
less than 50 msec.
±150 msec.
+75 msec, -150 msec.
within 3.5 sec. of motor start attempt
100 msec. maximum (contact closure to output relay activation)
g
4
GE Power Management