DTMR3-TX
Doc. N°
MO-0377-ING
Copyright 2010
Data
01.04.2009
Rev.
0
Pag.
52
of
87
14.18 - Function:
BrkFail
(Breaker Failure)
Status
Enab.
No
[No / Yes]
Timers
tBF
0.75
s
(0.05
0.75)
step
0.01
s
16.18.1 - Description of variables
Enab.
: Function enabling (No = Disable / Yes = Enable)
tBF
: Trip time delay
14.18.2 - Operation
The Breaker Failure detection is started by the operation of the output relay “R1” (programmed to
be controlled by the Protection Functions that trip the C/B).
If after [tBF] seconds from operation of the relay “R1”, any input current flow is still detected
(>10% In) , the function “BF” trips and operate one user programmable output relay,