GE 845 Instruction Manual page 549

CHAPTER A: APPENDIX A
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Table A-2: Major Updates for 845-A5
Chapter CHANGES
4 Added new Local Control Mode section, see Setpoints > Control
4 Added new Breaker Control section, see Setpoints > Control
Added new Switch Control (for disconnect switch control) section to
4
Setpoints > Control > Switch Control
4 Added new Pole Discordance section to Setpoints > Control
4 Added new CT Supervision section to Setpoints > Control
4 Added new Ethernet Loopback test section to Setpoints > Testing
Table A-3: Major Updates for 845-A4
PAGE PAGE CHANGES
NUMBER NUMBER
(A3) (A4)
Manual revision number from A3 to A4 and product version
cover cover
revision from 1.6x to 1.7x
Changed Time Delay to 200,000,000 ms for
1-21 1-21 Introduction>Specifications>User-Programmable
Elements>FlexCurves
Replaced typical wiring diagram for 2-winding transformer with
2-9 2-9
VTs on HV side (894117A3.cdr) with 892841A1.pdf.
Replaced typical wiring diagram for 2-winding transformer with
2-10 2-11
VTs on LV side (894011A3.cdr) with 892822A1.pdf.
Replaced typical wiring diagram for 2-winding transformer
2-11 2-12
without VTs (894012A3.cdr) with 892823A1.pdf.
Replaced typical wiring diagram for 3-winding transformer
2-12 2-13
(894013A3.cdr) with 892789A1.pdf.
4-, 5-, 6-. 4-, 5-, 6-, Removed the HMIs associated with the path description in each
7- 7- chapter
Replaced single communications card option with two
4-28 4-29 communications card options for "S" and "C" in Setpoints >
Device > Communications > Ethernet Ports
Updated Setpoints>Device>Installation to add Voltage Cutoff
- 4-61
and Current Cutoff settings
- 4-283 Added new RTD Trouble section to Setpoints>Monitoring
4-337 4-314 Updated the FlexLogic Operands table
Table A-4: Major Updates for 845-A3
PAGE PAGE CHANGES
NUMBER NUMBER
(A2) (A3)
Manual revision number from A2 to A3 and product version
cover cover
revision from 1.5x to 1.6x
cover cover Replaced GE Digital Energy with GE Grid Solutions throughout
Added Harmonic detection specification to
1-18 1-19
Specifications>Monitoring
Revised the Line VT Connections diagram to 892776A3.cdr
REVISION HISTORY
A–3