Setpoints Setpoints Main Menu; Protection And Trip Breaker Selection - GE 845 Instruction Manual

SETPOINTS MAIN MENU

Protection and Trip Breaker Selection

4–2
Figure 4-1: Main Setpoints Display Hierarchy
Setpoints
Figure 4-2: Main Setpoints Screen
Depending on order code, the 845 relay provides protection for either two-winding, or
three-winding transformers. Based on this, either two or three breakers can be configured
for status monitoring, tripping and closing. Each breaker menu provides a selection of trip
output and/or close output relay. Depending on the selected output relays, and the
function setting for the protection, control and monitoring elements, some conditions
apply.
• All ouputs selected for "BKR # Trip Output Select" under Breaker setup menu are
available for selection in the menus of all elements, except in the outputs selection for
"BKR# Close Output Select".
• For all elements, the default value for the trip selected outputs under Breaker setup
shows "Do Not Operate". The user can select these relays from the menu of the
element.
• All outputs selected for "BKR# Close Output Select", are automatically excluded from
the list of outputs available under the menus of all elements including the list of output
selection for "BKR# Trip Output Select setpoint. The close output relays can be used
for closing the breakers Remotely or Locally as part of teh Breaker Control feature.
Device
System
Inputs
Outputs
Protection
Monitoring
Control
FlexLogic
Testing
Level 1 Level 2
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS