ABB RELION REX640 Technical Manual page 1235

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the breaker at the remote end has been opened and the load flowing through has
therefore been disconnected. This current can be, for example, due to the charging
current of the phases or the load current of the tapped loads. The
setting value is set below the
current setting value is set to "0.05 pu".
The
load current detection to avoid an unwanted release of the function. The value of
Minimum current time is by default set to "0.2 s".
5.9.7 Signals
5.9.7.1 DSTPLAL Input signals
Table 1176: DSTPLAL Input signals
Name
I3P
BLOCK
AR_READY
CB_CL_CMD
EX_ACC
LOSSLOAD_ACC
NONDIR_ST
5.9.7.2 DSTPLAL Output signals
Table 1177: DSTPLAL Output signals
Name
OPR_LOSSLOAD
OPR_Z_EXTN
5.9.8 DSTPLAL Settings
REX640
Technical Manual
Minimum current time setting is used to provide the start delay for the loss of
Type
SIGNAL
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
Load current value setting. By default, the Minimum
Default
-
0=False
0=False
0=False
0=False
0=False
0=False
Type
BOOLEAN
BOOLEAN
Protection related functions
Minimum current
Description
Three-phase currents
Block signal for acti-
vating the blocking
mode
Autoreclosure ready,
releases function
used for fast trip
CB close command
Connected to func-
tion used for tripping
at zone extension
Connected to func-
tion used for tripping
at loss of load
Non directional crite-
ria used to prevent in-
stantaneous trip
Description
Operate by loss of load
Operate by zone extension
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