Basler Electric BE1-851 User Manual
Page 194
Function
Purpose
BESTlogic
Expression
Mode
Setting
50TQ
Used for instantaneous negative-sequence
overcurrent protection. Block when recloser sequence
controlled blocking output is TRUE or when disabled
by Virtual Switch 243.
79SCB+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 Virtual Switch 243.
243
1 (enabled)
51Q
Used for timed negative-sequence overcurrent
protection. Block when disabled by Virtual Switch 243.
243
1 (enabled)
62
N/A
0
0 (disabled)
162
N/A
0
0 (disabled)
79
RI Logic: Initiate when reclose initiate expression is
TRUE
VO8
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
8-38
BE1-851 Application
9289900990 Rev R