The inputs from the protection functions are connected to the OPERATE input.
Usually, a logic block OR is required to combine the different function outputs to
this input. The TRIP output is connected to the binary outputs on the IO board.
This signal can also be used for other purposes within the IED, for example when
starting the breaker failure protection.
TRPPTRC is used for simple three-phase tripping applications.
BI#4
Lock-out
reset
OR
PO#1
BI#2
TRPPTRC
OPERATE
RST_LKOUT
TRIP
CCRBRF-trret
T1PTTR-operate
CBXCBR-open
PHLPTOC-operate
PHHPTOC1-operate
PHHPTOC2-operate
PHIPTOC-operate
NSPTOC1-operate
NSPTOC2-operate
EFLPTOC1-operate
EFHPTOC-operate
EFIPTOC-operate
PDNSPTOC-operate
EFLPTOC2-operate
ARCPSARC1-operate
ARCPSARC2-operate
ARCPSARC3-operate
DARREC-open cb
BLOCK CL_LKOUT
A070881 V2 EN
Figure 293: Typical TRPPTRC connection
5.3.6 Signals
Table 471: TRPPTRC Input signals
Name
Type Default Description
BLOCK BOOLEAN 0=False Block of function
OPERATE BOOLEAN 0=False Request to trip circuit breaker.
RST_LKOUT BOOLEAN 0=False Input for resetting the circuit breaker lockout
function
Table 472: TRPPTRC Output signals
Name
Type Description
TRIP BOOLEAN General trip output signal
CL_LKOUT BOOLEAN Circuit breaker lockout output (set until reset)
Section 5 1YHT530004D05 D
Protection related functions
554 615 series
Technical Manual