Basler Electric BE1-851 - Manual (Page 185)

Table 8-14. Feeder_3 Function Block Logic
Function Purpose
BESTlogic
Expression
Mode
Setting
50TP
Used for instantaneous phase overcurrent protection.
Block when recloser sequence controlled blocking
output is TRUE.
79SCB 1 (enabled)
50TN
Used for instantaneous neutral overcurrent protection.
Block when recloser sequence controlled blocking
output is TRUE or when disabled by IN3 or Virtual
Switch 243.
79SCB+/IN3+243 1 (enabled)
50TQ
Used for instantaneous negative-sequence
overcurrent protection. Block when recloser sequence
controlled blocking output is TRUE or when disabled
by /IN3 or Virtual Switch 243.
79SCB+/IN3+243 1 (enabled)
150TP Used for instantaneous phase overcurrent protection. 0 1 (enabled)
150TN Used for instantaneous neutral overcurrent protection. 0 1 (enabled)
150TQ
Used for instantaneous negative-sequence
overcurrent protection.
0 1 (enabled)
51P Used for timed phase overcurrent protection. 0 1 (enabled)
51N
Used for timed neutral overcurrent protection. Block
when disabled by IN3 or Virtual Switch 243.
/IN3+243 1 (enabled)
51Q
Used for timed negative-sequence overcurrent
protection. Block when disabled by IN3 or Virtual
Switch 243.
/IN3+243 1 (enabled)
62 N/A 0 0 (disabled)
162 N/A 0 0 (disabled)
79
RI Logic: Strapped high. /0
1 (Power Up
to Lockout)
STATUS Logic: Breaker closed when IN1 is de-
energized.
/IN1
WAIT Logic: Stop recloser timing when timing for a
fault trip. TRUE when protection picked up expression
is TRUE.
VO12
BLK/DTL Logic: Drive recloser to lockout when
recloser drive to lockout expression is TRUE or when
relay is in test mode.
VO9+/IN4+343
BF
Initiate breaker failure when breaker failure initiate
expression is TRUE.
VO10
1 (enabled)
Block breaker failure protection when relay is in test
mode.
/IN4+343
GROUP
No manual selection logic is used. 0
1 (Discrete
Inputs)
No manual selection logic is used. 0
No manual selection logic is used. 0
No manual selection logic is used. 0
Disable automatic selection when Virtual Switch 43 is
in the manual position.
/43
9289900990 Rev R BE1-851 Application 8-29