GE D90 Plus Instruction Manual page 244

GROUPED PROTECTION ELEMENTS
Breaker failure settings and logic
236
• FlexLogic™ operands that initiate tripping required to clear the faulted zone. The trip
output can be sealed-in for an adjustable period.
• Illumination of a front panel annunciator message or messages.
Select the Settings > Protection > Elements > Group 1 > Breaker Failure menu item to
open the breaker failure configuration window.
Figure 190: Breaker failure configuration settings
The following settings are available for each breaker failure element.
Function
Range: Enabled, Disabled
Default: Disabled
This setting enables and disables the breaker failure protection element.
Mode
Range: 1-Pole, 3-Pole
Default: 1-Pole
This setting selects the breaker failure operating mode: single-pole or three-pole.
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: PROTECTION