Schweitzer Engineering Laboratories SEL-300G - Page 7

Manual Change Information iii
SEL-300G Instruction Manual Date Code 20020206
Revision Date Summary of Revisions
20000615 Section 2—Negative-Sequence magnitude of 3 • I
2
replaced by I
2
on pages 2-40
and 2-49.
20000218 Appendix A—Updated firmware versions.
19990421 Section 1—Added 24 Vdc relay part number option.
Section 7—Added 24 Vdc option to commissioning description.
Appendix A—Updated firmware versions.
19990312 Section 2—Corrected phase distance element reach setting instructions on Page
2-14.
Section 7—Corrected phase distance element testing instructions on Page 7-23.
19990115 Section 2—Corrected Enable Backup Protection setting on Page 2-8 and
Enable Overvoltage Protection setting on Page 2-9.
Section 4—Corrected setting name for Synch-Check Phase on Page 4-25.
Section 4—Corrected typographical error in Figure 4.18 on Page 4-41.
19981125 Section 1—Updated power supply information in General Specifications on
Page 1-16.
Section 2—Updated phase distance element logic diagram on Page 2-16.
Section 2—Off-Frequency Accumulators, Setting Descriptions—adjusted
Accumulator Time-Delayed Pickup range on Page 2-78.
Section 5—Updated Relay Dimension and Panel Cutout drawing on Page 5-1.
Changed voltage amount to 200 V continuous in Potential Transformer Inputs
section on Page 5-9. Modified Figure 5.17 on Page 5-16.
Settings Sheets—Added Voltage Ratio Correction Factor, 25RCF setting on
Page 3. Added setting name for Independent Harmonic Blocking Setting
(IHBL) on Page 10.
Section 7—Miscellaneous edits from Page 7-19 through the end of the section.
Section 8—Clarified Differential Metering quantities on page 8-12.
Section 10—SHO Command (Show/View Settings)—Reworded sentence at the
bottom of Page 10-23.
Section 13—Changed IRS1 equation to read “IRS1 = 3 per unit of TAP” on
Pages 13-10 and 13-15.
Appendix A—Updated firmware versions.
19980731 Add danger warnings (in English and French) against electrical shock, fire,
energy/high current levels and mechanical hazards to be in compliance with
North American Product Safety guidelines.