Specifications - GE 239 Instruction Manual

1.2

Specifications

1–8
Courtesy of NationalSwitchgear.com
PHASE CURRENT INPUTS
Conversion:........................................................true rms, 16 samples/cycle
CT Input:..............................................................1 A and 5 A secondary
Range:..................................................................0.1 to 11 × phase CT primary
Frequency:.........................................................20 to 300 Hz
Accuracy:............................................................±2% of full scale
GROUND CURRENT INPUTS
Conversion:........................................................true rms, 16 samples/cycle
CT Input:..............................................................5 A secondary and 50:0.025
Range:..................................................................0.03 to 1.4 × CT primary (5A CT)
Frequency:.........................................................20 to 300 Hz
Accuracy:
5 A CT:...............................................................±2% of full scale (5A CT)
50:0.025 CT: ...................................................±0.03 A (0 to 0.49 A)
OVERLOAD CURVES TRIP TIME
Curves:.................................................................15 curves, fixed shape
Overload Pickup Inhibit: 1.00 to 5.00 × FLC
Pickup Level: .....................................................1 to 1500 A
Accuracy:............................................................
Pickup:..............................................................± 1% of Displayed Value
Time: .................................................................± 2% of trip time or ± 1 sec whichever is greater
SHORT CIRCUIT & GROUND TRIP
Ground Trip Level: .........................................0.05 to 15A (50:0.025 CT)
S/C Trip Level:...................................................1 to 11 × CT PRI / OFF
Intentional Delay: ...........................................INST. or 10 to 60000 ms
Inst:........................................................................20 to 45 ms
* Total Delay: ....................................................Inst + Intentional
* ..............................................................................trip time accuracy guaranteed if current > 1.4 × trip level
BREAKER FAILURE TIMING
Delay: ...................................................................INST. or 10 to 60000 ms
Inst:........................................................................20 to 45ms
* Total Delay: ....................................................Inst + Intentional
* ..............................................................................trip time accuracy guaranteed if current > 1.4 × trip level
START PROTECTION
Thermal:..............................................................separate start & run protection
Activation: ..........................................................inrush 3 phase current increases from <5% to >101% FLC
Deactivation: ...................................................current drops to <100% FLC motor running if current >5%
Locked Rotor: ...................................................0.5 to 11.0 ×FLC
0.05 to 16.0 A (50:0.025 CT)
±0.07 A (0.50 to 3.99 A)
±0.20 A (4.00 to 16.00 A)
3 to 100% (5 A CT)
programmable
setting
programmable
setting
in 1 s
FLC
239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL
CHAPTER 1: OVERVIEW