Data Capture - GE 339 Instruction Manual

CHAPTER 1: INTRODUCTION

Data capture

339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
DATA LOGGER
Number of Channels: ........................................10
Parameters:...........................................................Any available analog actual value
Sampling Rate:.....................................................1 cycle, 1 second, 1 minute, 1 hour
Trigger Source:.....................................................All logic elements, Logic operand: Any Trip PKP/OP/DPO, Any
Mode:........................................................................Continuous or triggered
MOTOR START DATA LOGGER
Length: .....................................................................6 buffers, containing a total of 30 seconds of motor starting
Trigger:.....................................................................Motor start status
Trigger Position:...................................................1-second pre-trigger duration
Logging Rate:........................................................1 sample/200 ms
TRANSIENT RECORDER
Buffer size:..............................................................3 s
No. of buffers: ......................................................1x192 cycles, 3x64 cycles, 6x32 cycles
Sampling rate:......................................................32 samples per cycle
Triggers:...................................................................Manual Command
Data:..........................................................................AC input channels
Data storage:........................................................RAM - battery backed-up
EVENT RECORDER
Number of events:..............................................256
Content:...................................................................event number, date of event, cause of event, per-phase
Data Storage:........................................................Non-volatile memory
LEARNED DATA RECORDER
Number of events:..............................................250
Header: ....................................................................Date, number of records
Content:...................................................................learned acceleration time , learned starting current, learned
Data Storage:........................................................Non-volatile memory
CLOCK
Setup:........................................................................Date and time
IRIG-B:.......................................................................Auto-detect (DC shift or Amplitude Modulated)
Alarm PKP/OP/DPO
data
Contact Input
Virtual Input
Logic Element
Element Pickup/Trip/Dropout/Alarm
Contact input state
Contact output state
Virtual input state
Logic element state
current, ground current, sensitive ground current, neutral
current, per-phase voltage (VTs connected in "Wye"), or
phase-phase voltages (VTs connected in "Delta"), system
frequency, power, power factor, thermal capacity, motor
load, current unbalance
starting capacity, last starting current, last starting capacity,
last acceleration time , average motor load learned, average
run time after start (days), average run time after start
(minutes)
Daylight Saving Time
RTC Accuracy: ± 1 min / month at 25°C
Amplitude modulated: 1 to 10 V pk-pk
DC shift: 1 to 10 V DC
Input impedance: 40 kOhm ± 10% at 25°C
SPECIFICATIONS
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