GE D90 Plus Instruction Manual page 352

CONTROL ELEMENTS
Multi-shot operation
342
Figure 281: Autoreclose breaker close logic
Figure 282: Autoreclose close breaker 1 or 2 logic
Figure 283: Autoreclose termination logic
The
Maximum Number of Shots
reclose, the shot counter increments.
If Maximum Number of Shots
At reclosing, the fault is again detected by protection and reclose is initiated. The breaker is
tripped three-pole through the
operand. Because the shot counter has reached the maximum number of shots permitted,
the scheme is sent to the lockout state.
If Maximum Number of Shots
At reclosing, the fault is again detected by protection and reclose is initiated. The breaker is
tripped three-pole through the
operand. After the second reclose, the shot counter is set to 2. Upon reclosing, the fault is
again detected by protection, the breaker is tripped three-pole, and reclose is initiated
again. Because the shot counter has reached the maximum number of shots permitted,
the scheme is sent to the lockout state.
setting defines the number of reclose attempts. After each
is set to "1," the shot counter is set to 1 upon the first reclose.
operand that sets the
AR SHOT COUNT >0
is set to "2," the shot counter is set to 1 upon the first reclose.
operand that sets the
AR SHOT COUNT >0
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: PROTECTION
AR FORCE 3P
AR FORCE 3P