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1.
Check that
AutoLock
and
TripLockout
are both set to
Off
.
2.
Activate shortly the set lockout (SETLKOUT) signal in the IED.
3.
Check that the circuit breaker lockout (CLLKOUT) signal is set.
4.
Activate shortly thereafter, the reset lockout (RSTLKOUT) signal in the IED.
5.
Check that the circuit breaker lockout (CLLKOUT) signal is reset.
6.
Initiate a three-phase fault.
A three-phase trip should occur and all trip outputs TRL1, TRL2, TRL3 should
be activated. Functional outputs TRIP and TR3P should be active at each fault.
The output CLLKOUT should not be set.
7.
Activate the automatic lockout function, set
AutoLock
=
On
and repeat.
Besides the TRIP outputs, CLLKOUT should be set.
8.
Reset the lockout signal by activating the reset lockout (RSTLKOUT) signal.
9.
Activate the trip signal lockout function, set
TripLockout
=
On
and repeat.
All trip outputs (TRL1, TRL2, TRL3) and functional outputs TRIP and TR3P
must be active and stay active after each fault, CLLKOUT should be set.
10. Reset the lockout.
All functional outputs should reset.
11. Deactivate the TRIP signal lockout function, set
TripLockout
=
Off
and the
automatic lockout function, set
AutoLock
=
Off
.
10.8.1.5
Completing the test
Continue to test another function or end the test by changing the
TESTMODE
setting
to
Off
. Restore connections and settings to their original values, if they were changed
for testing purposes.
10.9
Monitoring
10.9.1
Gas medium supervision SSIMG
Prepare the IED for verification of settings as outlined in section
medium supervision for alarm and lock out conditions"
and section
Check that the input logical signal
BLOCK
is logical zero and that on the local HMI,
the logical signals
PRES_ALM
,
PRES_LO
,
TEMP_ALM
and
TEMP_LO
are equal to
logical zero.
Section 10
1MRK 504 160-UEN -
Testing functionality by secondary injection
92
Transformer protection RET650 2.1 IEC
Commissioning manual
Содержание RET650 2.1 IEC
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