CHAPTER 6: SETPOINTS
S2 SYSTEM SETUP
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
6–63
If the contact input selected under BKR CONNECTED setting is asserted, the breaker is
considered connected to the primary system. When the breaker is determined
disconnected, the breaker state is shown to be neither open, nor closed.
Table 4: Breaker status with both contacts configured
52a contact status
52b contact status
Breaker status
Off
On
open
On
Off
closed
On
On
BKR status failure
Off
Off
BKR status failure