GE 339

1–16 339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
PHASE & GROUND CURRENT INPUTS
CT Primary: ............................................................30 to 1500 A
Range:...................................................................... 0.02 to 20 × CT
Input type:.............................................................. 1 A or 5 A (must be specified with order)
Nominal frequency:........................................... 50/60 Hz
Burden: ....................................................................<0.1 VA at rated load
Accuracy: ............................................................... 3%
±10 mA or ±20% of reading from 0.02 to 0.19 × CT, whichever
is greater
CT withstand:........................................................ 1 second at 100 A (1 A option)
1 second at 400 A (5 A or universal CT option)
2 seconds at 40 × rated current
continuous at 3 × rated current
CBCT INPUT (50:0.025)
CT Primary: ............................................................0.5 to 15.0 A
Nominal frequency:........................................... 50 or 60 Hz
Accuracy (CBCT):.................................................±0.1 A (0.5 to 3.99 A)
±0.2 A (4.0 A to 15 A)
FREQUENCY
Accuracy: ............................................................... ±0.05 Hz
Resolution: .............................................................0.01 Hz
Range:...................................................................... 40.00 to 70.00 Hz
PHASE VOLTAGE INPUTS
Source VT: .............................................................. 100 to 20000 V
VT secondary range:......................................... 50 to 240 V
VT ratio: ...................................................................1.0 to 300.0 in steps of 0.1
Nominal frequency:........................................... 50/60 Hz
Relay burden: .......................................................<0.25 VA at 120 V
Accuracy: ............................................................... ±1.0% throughout range
Voltage withstand: ............................................. 260 VAC continuous
RTD INPUTS
RTD Type:................................................................ 100 Ohm platinum (DIN.43760)
RTD Sensing Current: ........................................5 mA
Isolation: ................................................................. 2 kV from base unit (RMIO only)
Distance:.................................................................250 m maximum
Range:...................................................................... -50 to +250
o
C
Accuracy: ............................................................... ±3
o
C
Lead Resistance: .................................................25 Ohm max per lead
RTD Trouble Alarm: ............................................<-50 or >250
o
C
RTD Inputs Available: ........................................3 with INPUT/OUTPUT option ‘R’ installed OR
12 maximum with the RMIO option connected