Specifications

December 2008 Page 1–15
Chapter 1. Product Description
1
Table 1–10a. Protective Relay Interface Module (PRI) Specifications
Table 1–10b. Protective Relay Interface Module (PRI) ROM Compatability
1.24.8 Protective Relay Interface Module (PRI, PRS)
Interfaces Four independent, bi-directional transfer trip circuits
Input Opto-isolator, 4 mA input current, 48–250Vdc
Output Four trip outputs (PRI = form A contact, PRS = transistor)
One guard output
One block (alarm)
(All outputs rated at 1 Amp)
Channel Speed Back-to-back pickup:
PRI – 7.5ms plus security delay
PRS – 1.0ms plus security delay
Drop out delay:
PRI – 9.0ms
PRS – 2.0ms
Channel Loss Block or force trip for 150 µs
Indicators* Trip TX LED per circuit
Key RX LED per circuit
Block alarm LED
Guard signal LED
Status LED
Connectors Compression-type (20-pos.) terminal block, accepting up to 14
AWG stranded wire (optional)
Screw-type (20-pos.) terminal block, accepting up to 14 AWG
stranded wire (standard) or ring lugs
Keying Specify version with order:
Threshold 48/60V nominal, ≥35 volts (approx.)
110/125V nominal, ≥75 volts (approx.)
220/250V nominal, ≥145 volts (approx.)
*Includes a PRI with a
flashing LED indicating a
redundant/multi-drop mode
and one bad channel.
Ordered As Features ROM Version MV2 MV3 MV4 MV5 FCS Version
PRI, PRS Basic ≤ 19 YES YES NO NO All
PRI-A-xxx or Addressed 26 – 99 NO YES YES NO ≥ 3.7
PRS-A-xxx Redundant
PRI-A-xxx or Addressed 27 – 99 NO YES YES YES ≥ 3.12
PRS-A-xxx Redundant
PRI-M-xxx or Multi-Drop ≥ 100 NO YES YES NO ≥ 3.7
PRS-M-xxx Addr. Redundant
PRI-M-xxx or Multi-Drop ≥ 102 NO YES YES YES ≥ 3.12
PRS-M-xxx Addr. Redundant