Sel SEL-421 - Relay Word Bits: Fast SER Enable Bits; Relay Word Bits: Source Selection Elements; Relay Word Bits: High-Speed Distance Elements

R.A.73
Date Code 20111215 Reference Manual SEL-421 Relay
Relay Word Bits
Row List
Table A.46 Relay Word Bits: Fast SER Enable Bits
Row Bit Name Description
260 FSERP1 Fast SER enabled for Serial Port 1
260 FSERP2 Fast SER enabled for Serial Port 2
260 FSERP3 Fast SER enabled for Serial Port 3
260 FSERPF Fast SER enabled for Serial Port F
260 * Reserved
260 * Reserved
260 * Reserved
260 * Reserved
Table A.47 Relay Word Bits: Source Selection Elements
Row Bit Name Description
261 ALTI Alternate current source (SELOGIC control equation)
261 ALTV Alternate voltage source (SEL
OGIC control equation)
261 ALTS2 Alternate synchronism source for Circuit Breaker 2
261 DELAY Local current and voltage source delay logic
261 * Reserved
261 * Reserved
261 * Reserved
261 * Reserved
Table A.48 Relay Word Bits: High-Speed Distance Elements
a
(Sheet 1 of 2)
Row Bit Name Description
262 MBG3H High-speed Zone 3 Mho B-phase-to-ground element
262 MAG3H High-speed Zone 3 Mho A-phase-to-ground element
262 MCG2H High-speed Zone 2 Mho C-phase-to-ground element
262 MBG2H High-speed Zone 2 Mho B-phase-to-ground element
262 MAG2H High-speed Zone 2 Mho A-phase-to-ground element
262 MCG1H High-speed Zone 1 Mho C-phase-to-ground element
262 MBG1H High-speed Zone 1 Mho B-phase-to-ground element
262 MAG1H High-speed Zone 1 Mho A-phase-to-ground element
263 * Reserved
263 * Reserved
263 * Reserved
263 * Reserved
263 * Reserved
263 * Reserved
263 * Reserved
263 MCG3H High-speed Zone 3 Mho C-phase-to-ground element
264 MBC3H High-speed Zone 3 Mho B-C phase element
264 MAB3H
a
High-speed Zone 3 Mho A-B phase element
264 MCA2H High-speed Zone 2 Mho C-A phase element