U.A.14
SEL-421 Relay User’s Guide Date Code 20090715
Firmware and Manual Versions
Instruction Manual
Reference Manual
Section 1
➤ Added Frequency Estimation Provided by Synchrophasor.
Section 4
➤ Added the Ethernet card as one of the available communications interfaces for the Phasor Measurement
Protocol.
Section 7
➤ Added Table 7.2 for the Time and Date Management setting IRIGC.
➤ Added Table 7.4 Ethernet Port Settings for Synchrophasors.
➤ Changed FREQ to FREQ_PM (frequency measurement using phasor measurement quantities) in Table 7.9.
➤ Added synchrophasor protocol availability when EPMIP := Y.
➤ Revised example logic settings in Table 7.15.
Section 10
➤ Added Table 10.16 for the Time and Date Management setting IRIGC.
20061215 Note: This version was not released from the factory. The 20070223 version contains the following changes.
User’s Guide
Section 1
➤ Added Alias Settings and Auxiliary
{TRIP}/{CLOSE}
Pushbuttons to Features.
➤ Added INT3 to Models and Options.
➤ Added INT3 to SEL-421 Versions and Supported Features.
➤ Added INT3 and Auxiliary {TRIP}/{CLOSE} Pushbuttons to Specifications.
Section 2
➤ Added INT3 to Control Inputs.
➤ Added Figure 2.12.
➤ Added INT3 to Tab le 2.3 and Table 2.4.
➤ Added INT3 to I/O Interface Board Jumpers.
➤ Added Figure 2.22.
➤ Added Auxiliary {TRIP}/{CLOSE} Pushbutton and Breaker Status LED Jumpers (select models only) with
Table 2.8, Table 2.9, and Table 2.10.
➤ Updated Figure 2.26 to include optional pushbuttons.
➤ Added Figure 2.32.
➤ Add INT3 to Control Inputs.
➤ Added Auxiliary {TRIP}/{CLOSE} Pushbuttons and OPEN/CLOSED LEDs (select models only) to
Connection.
➤ Added Figure 2.51.
Section 4
➤ Added Alias Settings to Tab le 4.5.
➤ Edited Figure 4.13 and Figure 4.14 for Display Points Text Size parameter.
➤ Added Alias Settings.
➤ Added Figure 4.15, Figure 4.16, and Figure 4.17.
Section 5
➤ Added Figure 5.2.
➤ Updated Front-Panel Layout for HMI changes: expanded pushbuttons, expanded target LEDs, tri-color
LEDs, and auxiliary {TRIP}/{CLOSE} pushbuttons.
➤ Updated Figure 5.5, Figure 5.11, and Example 5.2 to include double-height Display Points.
➤ Updated Display Points and Table 5.4 and Tab le 5.5 to include Text Size parameter.
➤ Updated Relay Elements (Relay Word Bits) for Alias impact.
➤ Updated Operation and Target LEDs for HMI changes: expanded target LEDs and tri-color LEDs.
➤ Updated Figure 5.43 for expanded target LEDs.
➤ Added Table 5.11.
➤ Updated Recloser Status for expanded target LEDs.
➤ Added Miscellaneous Status and Synchrophasor Status for expanded target LEDs.
➤ Updated Figure 5.44, Table 5.13, and Figure 5.45 for expanded pushbuttons.
Table A.5 Instruction Manual Revision History (Sheet 4 of 16)
Revision Date Summary of Revisions
Courtesy of NationalSwitchgear.com
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