A.5
Date Code 20060320 Instruction Manual SEL-311C Relay
Firmware and Instruction Manual Versions
Instruction Manual
Instruction Manual
The date code at the bottom of each page of this manual reflects the creation
or revision date.
Table A.3 lists the instruction manual release dates and a description of
modifications. The most recent instruction manual revisions are listed at the
top.
Table A.3 Instruction Manual Revision History (Sheet 1 of 6)
Revision Date Summary of Revisions
This manual differs from the previous versions as follows:
20060320
Entire Manual
➤ Made typographical corrections.
Preface
➤ Added new appendix, Appendix G: SEL Synchrophasors to manual overview.
Section 1
➤ Updated serial communications baud rate range for Port 1.
➤ Added time-code input accuracy for synchrophasor measurement.
➤ Modified Time-Overcurrent element pickup range.
➤ Added synchrophasor accuracy.
➤ Modified metering accuracy.
Section 2
➤ Modified Figure 2.1 SEL-311C Relay Dimensions and Panel-Mount Cutout to explain projection rack
mounting option.
➤ Rotated the rear-panel drawing in Figure 2.3.
➤ Under IRIG-B Time-Code Input, added a note that the IRIG-B time signal does not update the relay
internal year.
Section 3
➤ Modified Time-Overcurrent element pickup range in Table 3.9, Tab le 3.11, and Table 3.12.
➤ Corrected the operate label in the Internal Fault portion of Figure 3.1 Positive-Sequence Polarized Mho
Element With Reach Equal to Line Impedance.
➤ Under Fixed Angle Synchronism Check, corrected the CL setting.
➤ Modified Figure 3.33.
Section 4
➤ Added V
2
input to Figure 4.35 Loss-of-Potential Logic.
Section 5
➤ Modified TDURD setting range.
Section 6
➤ Added Lockout State initiation condition.
Section 8
➤ Added Synchrophasor Metering section.
Section 9
➤ Added Global synchrophasor settings to Table 9.1.
➤ Added new Relay Word bits PMDOK, TSOK, and TIRIG to Table 9.5.
➤ Added new Relay Word bit definitions for PMDOK, TSOK, and TIRIG to Table 9.6.
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