Basler Electric BE1-700 - Manual (Page 208)

Figure 8-10. 700V-VF79-A-BE (V & F Protection with Reclosing) One-Line Drawing
Table 8-16. 700V-VF79-A-BE (V & F Protection with Reclosing) Contact Sensing Input Logic
Input Purpose Label
State Labels
Energized De-Energized
IN1 Breaker status indication in Sequence of
Events Reporting. TRUE when breaker is
open. Typically, IN1 is connected to the 52b
contact of the breaker. BREAKER OPEN CLOSED
IN2 Reclosing Drive to Lockout. Drives recloser
to lockout when external switch is turned off.
Contact from external switch must be closed
in the off position, open in the on. REC_OFF OFF ON
IN3 External time delay reclose initiate. TRUE
when RI is high. EXT_RI ACTIVE NORMAL
IN4 External high speed (pilot) reclose initiate.
TRUE when PI is high. EXT_PI ACTIVE NORMAL
Table 8-17. 700V-VF79-A-BE (V & F Protection with Reclosing) Function Block Logic
Function Purpose
BESTlogic
Expression
Mode Setting
24 Used for detection of transformer overexcitation 0 1 (enabled)
25
(25VM)
Blocked when 79C is FALSE (/79C) or when 79LO is
TRUE. Set 25VM Hot Bus-Dead Line /79C+79LO 1 (enabled)
8-26 BE1-700 Application 9376700990 Rev M