ERL tesla lite, User Manual, Page: 231 / 288

Appendix A Specifications
D03283R01.10 TESLA LITE User Manual Appendix A-3
Front Panel Indicators 6 LEDs Recorder Functional, IRIG-B Functional,
Recorder Triggered, Records Stored,
Test Mode, Alarm
Front User Interfaces USB port and 100BASE-T Ethernet port
Rear User Interfaces LAN Port1: 100BASE – Copper Copper: RJ-45, 100BASE-T
Serial User Interface Two Serial RS-232 ports to 115 kbd Com port can support an external
modem
Internal Modem 38.4 Kbps, V.32 bis Optional
SCADA Interface DNP3 or Modbus Ethernet: DNP3
RS: 232: DNP3 or Modbus
Configurable Alarms 5 contacts per unit Normally open
Cross-trigger 1 contact per unit Normally open
Self Checking/Recorder
Inoperative 1 contact Normally closed
Time Sync IRIG-B, BNC connector/unit B003,B004,B123 and B124
Time Codes Modulated or unmodulated
Input & Output
Analog Input Channels 12 currents, 3 line and 3 bus voltages
Analog Voltage Inputs
2 sets of 3-phase voltage
inputs
(6 voltage channels total) Nominal Voltage
Continuous rating
Maximum over-scale thermal rating
Burden Vn = 69 Vrms
2x Vn = 138 Vrms
3x Vn = 207 Vrms for 10 seconds
<0.15 VA @ 69 Vrms
Analog Current Inputs
4 sets of 3-phase current
inputs
(12 current channels) Nominal Current
Full Scale/Continuous
Maximum full-scale rating
Thermal Rating
Burden In = 1 Arms or 5 Arms
3x In = 3 Arms or 15 Arms
40x In for 1 second symmetrical
400 A for 1 second
<0.25 VA @ 5 Arms
Sampling Resolution Amplitude measurement accuracy: +/-
0.5% for 54 to 66 Hz
Burden Burden resistance: > 10 k ohms
Analog Input Sampling Sample rate: 96 samples/cycle for recording, 8x/cycle
for protection
External Inputs 38 isolated inputs Optional 48, 125 or 250 Vdc nominal,
externally wetted
Isolation 2 KV optical isolation
Sample Rate 96 samples/cycle
External Input Turn-on
Voltage 48 Vdc range = 27 to 40 Vdc
125 Vdc = 75 to 100 Vdc
250 Vdc = 150 to 200 Vdc, 60% to 80% of nominal Specified voltages are over full ambient
temperature range.
Alarm Contacts Externally wetted
Make: 30 A as per IEEE C37.90
Carry: 8 A
Break: 0.9 A at 125 Vdc resistive
0.35 A at 250 Vdc resistive
TESLA LITE Power System Recorder