ABB RED670 Relion 670 series, Commissioning Manual

Page: 213 / 308

Test for fast fault clearing
• Connect the test set for the injection of three phase voltages and currents to the
appropriate terminals of the IED.
• Enable the fast fault clearance by setting FastOperation to TRUE, and also
connect the inputs
BLKDLFLT
to TRUE and
FUSEFAIL
to FALSE.
• Also assume circuit breaker is in closed position, that is
CBCLOSED
is high,
prior to fault occurrence.
• Create a single phase fault on phase L1 such that phase L1 voltage is lower
than
UPhSel< times quadrature phase to phase voltage and set Tau to default
value.
• Activate carrier receive CR signal.
• Check that
TRIP
,
TRL1
,
ARST
and
ARSTL1
are generated with the
conditions described.
• Check that activated trip signals and start signals are blocked by enabling
BLKTR
and
BLKST
.
• Check that all activated signals are disabled by
BLOCK
input.
• If required, perform creating faults on the remaining phases in the similar way.
Test of delayed fault clearing for single pole tripping
• Connect the test set for the injection of three phase voltages and currents to the
appropriate terminals of the IED.
• Enable the delayed fault clearance for single pole tripping by setting
Del1phOp to 1Ph (On) , Del3PhOp to FALSE (Off) and also connect the inputs
BLKDLFLT
and
FUSEFAIL
to FALSE.
• Also assume circuit breaker is in closed position, that is input
CBCLD
is high,
prior to fault occurrence.
• Create a single phase fault on phase L1 such that phase L1 voltage is lower
than
UPhSel< times quadrature phase to phase voltage and set Tau to default
value and also inject the residual current such that it exceeds set IN> value.
• Check that output
TRIN
is activated after a set delay of tResCurr if
ResCurrOper is set to high.
• Check that
TRIP
and
TRL1
are generated with the conditions described after a
set delay time of t1Ph and the outputs
ARST
and
ARSTL1
are also activated. .
• Check that activated trip signals and start signals are blocked by enabling
BLKTR
and
BLKST
.
• Check that all activated signals are disabled by
BLOCK
input.
• If required, perform creating faults on the remaining phases in the similar way.
Test of delayed fault clearing for three pole tripping
• Connect the test set for the injection of three phase voltages and currents to the
appropriate terminals of the IED.
• Enable the delayed fault clearance for three pole tripping by setting Del3phOp
to TRUE (On) , Del1PhOp to 3Ph (Off) and also connect the inputs
BLKDLFLT
and
FUSEFAIL
to FALSE.
• Also assume circuit breaker is in closed position, that is, the input
CBCLOSED
is high prior to fault occurrence.
1MRK 505 378-UEN A
Section 11
Testing functionality by secondary injection
Line differential protection RED670 2.2 IEC 207
Commissioning manual