Testing Logic Functions; Tripping Logic Smpptrc; Three Phase Operating Mode; Circuit Breaker Lockout - ABB ret650 Commissioning Manual

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1MRK 504 126-UEN -
6.8
6.8.1
6.8.1.1
6.8.1.2
Commissioning Manual

Testing logic functions

Tripping logic SMPPTRC

Prepare the IED for verification of settings as outlined in
verify
settings".
Values of the logical signals for SMPPTRC are available on the local HMI under
Main menu/Tests/Function status/Logic/SMPPTRC(94,1->0)/X:SMPPTRC.
The Signal Monitoring in PCM600 shows the same signals that are available on the
local HMI.
This function is functionality tested together with other protection functions (earth-
fault overcurrent protection, and so on) within the IED. It is recommended that the
function is tested together with the autorecloser function, or when a separate
external unit is used for reclosing purposes. The testing is preferably done in
conjunction with the protection system and autorecloser function.

Three phase operating mode

1.
Check that AutoLock and TripLockout are both set to Off.
2.
Initiate a three-phase fault
An adequate time interval between the faults should be considered, to
overcome a reclaim time caused by the possible activation of the Autorecloser
function SMBRREC. The function must issue a three-phase trip in all cases,
when trip is initiated by any protection or some other built-in or external
function. The functional TRIP output signal must always appear.

Circuit breaker lockout

The following tests should be carried out when the built-in lockout function is used
in addition to possible other tests, which depends on the complete configuration of
an IED.
1.
Check that AutoLock and TripLockout are both set to Off.
2.
Initiate a three-phase fault.
The functional output TRIP should be active at each fault. The output
CLLKOUT must not be set.
3.
Activate the automatic lockout function, set AutoLock = On and repeat
Beside the TRIP outputs, CLLKOUT should be set.
4.
Reset the lockout signal by shortly thereafter activating the reset lockout
(RSTLKOUT) signal.
5.
Activate the TRIP signal lockout function, set TripLockout = On and repeat.
Section 6
Testing functionality
5.1 "Preparing the IED to
75

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