GE D90 Plus Instruction Manual page 334

CONTROL ELEMENTS
Three VT breaker flashover application
326
Figure 261: Breaker flashover scheme logic, sheet 1 of 2
Figure 262: Breaker flashover scheme logic, sheet 2 of 2
When only one set of VTs is available across the breaker, the
"None". To detect an open breaker condition in this application, the scheme checks if the
per-phase voltages were recovered (picked up), the status of the breaker is open (contact
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: PROTECTION
setting should be
Side 2